fix: update upload directory to root uploads folder

- Change UPLOAD_DIR from ./uploads to ../uploads
- Update static file serving path to ../../uploads
- Files now upload to project root uploads/ folder instead of server/uploads/

server/src/index.ts

@@ -21,7 +21,7 @@ app.use(express.json());
 app.use(express.urlencoded({ extended: true }));
 
 // Serve uploaded files
-app.use('/uploads', express.static(path.join(__dirname, '../uploads')));
+app.use('/uploads', express.static(path.join(__dirname, '../../uploads')));
 
 // Health check
 app.get('/health', (req, res) => {