major refactoring adding vendor and customer features

models/database/__init__.py

@@ -2,9 +2,11 @@
 """Database models package."""
 
 from .base import Base
+from .customer import Customer
+from .order import Order
 from .user import User
 from .marketplace_product import MarketplaceProduct
-from .stock import Stock
+from .inventory import Inventory
 from .vendor import Vendor
 from .product import Product
 from .marketplace_import_job import MarketplaceImportJob
@@ -13,7 +15,9 @@ __all__ = [
     "Base",
     "User",
     "MarketplaceProduct",
-    "Stock",
+    "Inventory",
+    "Customer",
+    "Order",
     "Vendor",
     "Product",
     "MarketplaceImportJob",