Restore accidentally removed files, a few forecast tweaks

inventory-server/old/test-connection.js

@@ -0,0 +1,22 @@
+const express = require('express');
+const router = express.Router();
+const { testConnection } = require('../../scripts/test-prod-connection');
+
+router.get('/test-prod-connection', async (req, res) => {
+  try {
+    const productCount = await testConnection();
+    res.json({ 
+      success: true, 
+      message: 'Successfully connected to production database',
+      productCount 
+    });
+  } catch (error) {
+    console.error('Production connection test failed:', error);
+    res.status(500).json({ 
+      success: false, 
+      error: error.message || 'Failed to connect to production database' 
+    });
+  }
+});
+
+module.exports = router;