feat: add backend analytics endpoints

backend/server.js

@@ -6,6 +6,7 @@ const dataRoutes = require('./routes/dataRoutes');
 const stockRoutes = require('./routes/stockRoutes');
 const campaignRoutes = require('./routes/campaignRoutes');
 const internalRoutes = require('./routes/internalRoutes');
+const analyticsRoutes = require('./routes/analyticsRoutes');
 
 const createApp = () => {
     const app = express();
@@ -17,6 +18,7 @@ const createApp = () => {
     app.use('/api', dataRoutes);
     app.use('/api', stockRoutes);
     app.use('/api', campaignRoutes);
+    app.use('/api', analyticsRoutes);
     app.use('/api/internal', internalRoutes);
 
     return app;