now using ES modules

src/routes/index.js

@@ -1,14 +1,14 @@
-const express = require('express');
-const router = express.Router();
+import { Router } from 'express';
+const router = Router();
 
 // Routes
 router.get('/', (req, res) => {
-  res.json({ message: 'Welcome to the Express backend!' });
+    res.json({ message: 'Welcome to the Express backend!' });
 });
 
 // Example route
 router.get('/api/hello', (req, res) => {
-  res.json({ message: 'Hello from the backend!' });
+    res.json({ message: 'Hello from the backend!' });
 });
 
-module.exports = router; 
+export default router;