Refactor CSV import API call in CSVImportDialog to use a structured request body. Increase JSON payload limit in index.js to support larger CSV imports.

src/index.js

@@ -14,7 +14,7 @@ const PORT = process.env.PORT || 5000;
 
 // Middleware
 app.use(cors());
-app.use(express.json());
+app.use(express.json({ limit: '10mb' })); // Increased limit for CSV imports
 
 // Routes
 app.use('/api/auth', authRoutes);