Added backend and integration for FilterPage and CourseTable done

server/models/Appointment.js

@@ -0,0 +1,11 @@
+const mongoose = require("mongoose");
+const { v4: uuidv4 } = require("uuid"); // For UUID generation
+
+const AppointmentSchema = new mongoose.Schema({
+  appointmentId: { type: String, default: uuidv4 }, // Auto-generate using UUID
+  courseId: { type: String, required: true, ref: "Course" },
+  facultyId: { type: String, required: true, ref: "Faculty" },
+  appointmentType: { type: [String], required: true }, // Array of appointment types
+});
+
+module.exports = mongoose.model("Appointment", AppointmentSchema);