Frontend fixes - dashboard, products, forecasting

inventory-server/src/routes/dashboard.js

@@ -584,7 +584,7 @@ router.get('/best-sellers', async (req, res) => {
                 GROUP BY c.cat_id, c.name
             )
             SELECT 
-                cat_id as category_id,
+                cat_id,
                 name,
                 units_sold,
                 revenue,
@@ -604,28 +604,30 @@ router.get('/best-sellers', async (req, res) => {
 
         // Format response with explicit type conversion
         const formattedProducts = products.map(p => ({
-            ...p,
+            pid: p.pid,
+            sku: p.sku,
+            title: p.title,
             units_sold: parseInt(p.units_sold) || 0,
-            revenue: parseFloat(p.revenue) || 0,
-            profit: parseFloat(p.profit) || 0,
-            growth_rate: parseFloat(p.growth_rate) || 0
+            revenue: p.revenue.toString(),
+            profit: p.profit.toString(),
+            growth_rate: p.growth_rate.toString()
         }));
 
         const formattedBrands = brands.map(b => ({
             brand: b.brand,
             units_sold: parseInt(b.units_sold) || 0,
-            revenue: parseFloat(b.revenue) || 0,
-            profit: parseFloat(b.profit) || 0,
-            growth_rate: parseFloat(b.growth_rate) || 0
+            revenue: b.revenue.toString(),
+            profit: b.profit.toString(),
+            growth_rate: b.growth_rate.toString()
         }));
 
         const formattedCategories = categories.map(c => ({
-            category_id: c.cat_id,
+            cat_id: c.cat_id,
             name: c.name,
             units_sold: parseInt(c.units_sold) || 0,
-            revenue: parseFloat(c.revenue) || 0,
-            profit: parseFloat(c.profit) || 0,
-            growth_rate: parseFloat(c.growth_rate) || 0
+            revenue: c.revenue.toString(),
+            profit: c.profit.toString(),
+            growth_rate: c.growth_rate.toString()
         }));
 
         res.json({