fix: set trust proxy for express-rate-limit

backend/src/app.js

@@ -40,6 +40,7 @@ import { errorHandler } from './middlewares/errorHandler.js';
 import { existsSync } from 'node:fs';
 
 const app = express();
+app.set('trust proxy', 1);
 
 app.use(helmet());
 app.use(cors({ origin: config.CORS_ORIGIN, credentials: true }));