Refactor code structure and remove redundant sections for improved readability and maintainability

backend/server.ts

@@ -0,0 +1,22 @@
+import 'dotenv/config';
+import express from 'express';
+import path from 'path';
+import 'express-async-errors';
+import cors from 'cors';
+
+import './src/database/connection'; // This line now automatically runs the connection
+import errorHandler from './src/errors/handler';
+import routes from './routes';
+
+const app = express();
+
+app.use(cors());
+app.use(express.json());
+app.use('/uploads', express.static(path.join(__dirname, '..', 'uploads')));
+app.use(routes);
+app.use(errorHandler);
+
+app.listen(process.env.PORT || 3101, () => {
+    console.log('Server is running on http://localhost:' + (process.env.PORT || 3101));
+    console.log('Environment:', process.env.NODE_ENV || 'development');
+});