API and database models refactoring

tests/conftest.py

@@ -8,8 +8,11 @@ from sqlalchemy.pool import StaticPool
 from app.core.database import Base, get_db
 from main import app
 # Import all models to ensure they're registered with Base metadata
-from models.database_models import (MarketplaceImportJob, Product, Shop,
-                                    ShopProduct, Stock, User)
+from models.database.marketplace import MarketplaceImportJob
+from models.database.product import Product
+from models.database.shop import Shop,ShopProduct
+from models.database.stock import Stock
+from models.database.user import User
 
 # Use in-memory SQLite database for tests
 SQLALCHEMY_TEST_DATABASE_URL = "sqlite:///:memory:"