QC check

models/api/product.py

@@ -3,8 +3,10 @@ from datetime import datetime
 from typing import List, Optional
 
 from pydantic import BaseModel, ConfigDict, EmailStr, Field, field_validator
+
 from models.api.stock import StockSummaryResponse
 
+
 class ProductBase(BaseModel):
     product_id: Optional[str] = None
     title: Optional[str] = None
@@ -71,6 +73,7 @@ class ProductResponse(ProductBase):
     created_at: datetime
     updated_at: datetime
 
+
 class ProductListResponse(BaseModel):
     products: List[ProductResponse]
     total: int