fix: reset stock quantity color and enforce location validation for all inbound operations

inventory-backend/app/api/v1/inbound/product.py

@@ -133,6 +133,12 @@ def submit():
     try:
         data = request.get_json()
         if not data: return jsonify({"code": 400, "msg": "No data"}), 400
+        
+        # 库位必填校验（安全兜底）
+        location = data.get('warehouse_location', '').strip()
+        if not location:
+            return jsonify({"code": 400, "msg": "入库失败：库位为必填项，不能为空！"}), 400
+        
         user_permissions = get_current_user_permissions()
         if 'inbound_product:*' not in user_permissions:
             field_to_perm = {'id': 'inbound_product:id', 'base_id': 'inbound_product:base_id', 'company_name': 'inbound_product:company_name', 'material_name': 'inbound_product:material_name', 'category': 'inbound_product:category', 'material_type': 'inbound_product:material_type', 'spec_model': 'inbound_product:spec_model', 'unit': 'inbound_product:unit', 'sku': 'inbound_product:sku', 'inbound_date': 'inbound_product:inbound_date', 'barcode': 'inbound_product:barcode', 'serial_number': 'inbound_product:serial_number', 'status': 'inbound_product:status', 'quality_status': 'inbound_product:quality_status', 'in_quantity': 'inbound_product:in_quantity', 'stock_quantity': 'inbound_product:stock_quantity', 'available_quantity': 'inbound_product:available_quantity', 'warehouse_location': 'inbound_product:warehouse_location', 'bom_code': 'inbound_product:bom_code', 'bom_version': 'inbound_product:bom_version', 'work_order_code': 'inbound_product:work_order_code', 'order_id': 'inbound_product:order_id', 'production_manager': 'inbound_product:production_manager', 'production_start_time': 'inbound_product:production_start_time', 'production_end_time': 'inbound_product:production_end_time', 'raw_material_cost': 'inbound_product:raw_material_cost', 'manual_cost': 'inbound_product:manual_cost', 'sale_price': 'inbound_product:sale_price', 'product_photo': 'inbound_product:product_photo', 'quality_report_link': 'inbound_product:quality_report_link', 'inspection_report_link': 'inbound_product:inspection_report_link', 'detail_link': 'inbound_product:detail_link'}