Implemented Oauth

backend/prisma/migrations/20260101185000_fix_oauth_constraints/migration.sql

@@ -0,0 +1,8 @@
+-- Make password optional for OAuth users
+ALTER TABLE "User" ALTER COLUMN "password" DROP NOT NULL;
+
+-- Add UUID generation extension if not exists
+CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
+
+-- Add default UUID generation for profileId
+ALTER TABLE "User" ALTER COLUMN "profileId" SET DEFAULT uuid_generate_v4();