Fix new services implementation 3

frontend/src/api/hooks/useForecast.ts

@@ -163,7 +163,8 @@ export const useForecast = () => {
     tenantId: string,
     format: 'csv' | 'excel' | 'json',
     params?: {
-      product_name?: string;
+      inventory_product_id?: string;  // Primary way to filter by product
+      product_name?: string;  // For backward compatibility
       start_date?: string;
       end_date?: string;
     }