add a lot of changes

backend/routes/user.routes.js

@@ -0,0 +1,40 @@
+const express = require('express');
+const router = express.Router();
+const userController = require('../controllers/user.controller');
+const { verifyToken } = require('../middleware/auth.middleware');
+
+/**
+ * @route GET /api/users/:userId/dashboard
+ * @desc Get user dashboard with stats, recent sessions, and category performance
+ * @access Private (User - own dashboard only)
+ */
+router.get('/:userId/dashboard', verifyToken, userController.getUserDashboard);
+
+/**
+ * @route GET /api/users/:userId/history
+ * @desc Get user quiz history with pagination, filtering, and sorting
+ * @query page - Page number (default: 1)
+ * @query limit - Items per page (default: 10, max: 50)
+ * @query category - Filter by category ID
+ * @query status - Filter by status (completed, timeout, abandoned)
+ * @query startDate - Filter by start date (ISO 8601)
+ * @query endDate - Filter by end date (ISO 8601)
+ * @query sortBy - Sort by field (date, score) (default: date)
+ * @query sortOrder - Sort order (asc, desc) (default: desc)
+ * @access Private (User - own history only)
+ */
+router.get('/:userId/history', verifyToken, userController.getQuizHistory);
+
+/**
+ * @route PUT /api/users/:userId
+ * @desc Update user profile
+ * @body username - New username (optional)
+ * @body email - New email (optional)
+ * @body currentPassword - Current password (required if changing password)
+ * @body newPassword - New password (optional)
+ * @body profileImage - Profile image URL (optional)
+ * @access Private (User - own profile only)
+ */
+router.put('/:userId', verifyToken, userController.updateUserProfile);
+
+module.exports = router;