Add backend changes and update scripts

inventory-server/src/server.js

@@ -14,6 +14,8 @@ const analyticsRouter = require('./routes/analytics');
 const purchaseOrdersRouter = require('./routes/purchase-orders');
 const configRouter = require('./routes/config');
 const metricsRouter = require('./routes/metrics');
+const vendorsRouter = require('./routes/vendors');
+const categoriesRouter = require('./routes/categories');
 
 // Get the absolute path to the .env file
 const envPath = path.resolve(process.cwd(), '.env');
@@ -87,6 +89,8 @@ app.use('/api/analytics', analyticsRouter);
 app.use('/api/purchase-orders', purchaseOrdersRouter);
 app.use('/api/config', configRouter);
 app.use('/api/metrics', metricsRouter);
+app.use('/api/vendors', vendorsRouter);
+app.use('/api/categories', categoriesRouter);
 
 // Basic health check route
 app.get('/health', (req, res) => {