Add native Olist composition sync

backend/index.js

@@ -1,11 +1,13 @@
 const { createApp } = require('./server');
 const { initDB } = require('./db');
-const { PORT } = require('./config');
+const { OLIST_SYNC_ENABLED, PORT } = require('./config');
+const { scheduleOlistSync } = require('./services/olistService');
 
 const start = async () => {
     await initDB();
 
     const app = createApp();
+    if (OLIST_SYNC_ENABLED) scheduleOlistSync();
     app.listen(PORT, '0.0.0.0', () => {
         console.log(`Nexstar Backend running at http://localhost:${PORT}`);
         console.log(`Endpoint for n8n: POST http://localhost:${PORT}/api/data`);