Fix time out error on data import and fix regression on progress display + sort out core and metrics schemas better

inventory-server/db/metrics-schema.sql

@@ -107,4 +107,24 @@ FROM
 LEFT JOIN 
     product_metrics pm ON p.product_id = pm.product_id
 WHERE 
-    p.managing_stock = true; 
+    p.managing_stock = true;
+
+-- Create view for sales trends analysis
+CREATE OR REPLACE VIEW product_sales_trends AS
+SELECT 
+    p.product_id,
+    p.SKU,
+    p.title,
+    COALESCE(SUM(o.quantity), 0) as total_sold,
+    COALESCE(AVG(o.quantity), 0) as avg_quantity_per_order,
+    COALESCE(COUNT(DISTINCT o.order_number), 0) as number_of_orders,
+    MIN(o.date) as first_sale_date,
+    MAX(o.date) as last_sale_date
+FROM 
+    products p
+LEFT JOIN 
+    orders o ON p.product_id = o.product_id
+WHERE 
+    o.canceled = false
+GROUP BY 
+    p.product_id, p.SKU, p.title;