refactor: update test imports to use module locations

Update all test files to import from canonical module locations:
- Integration tests: orders, inventory, messages, invoices
- Unit tests: services and models
- Fixtures: customer, vendor, message fixtures

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tests/unit/services/test_customer_address_service.py

@@ -8,7 +8,7 @@ import pytest
 from app.exceptions import AddressLimitExceededException, AddressNotFoundException
 from app.services.customer_address_service import CustomerAddressService
 from app.modules.customers.models.customer import CustomerAddress
-from models.schema.customer import CustomerAddressCreate, CustomerAddressUpdate
+from app.modules.customers.schemas import CustomerAddressCreate, CustomerAddressUpdate
 
 
 @pytest.fixture

tests/unit/services/test_inventory_service.py

@@ -13,8 +13,8 @@ from app.exceptions import (
     ProductNotFoundException,
 )
 from app.services.inventory_service import InventoryService
-from models.database.inventory import Inventory
-from models.schema.inventory import (
+from app.modules.inventory.models import Inventory
+from app.modules.inventory.schemas import (
     InventoryAdjust,
     InventoryCreate,
     InventoryReserve,

tests/unit/services/test_invoice_service.py

@@ -16,13 +16,13 @@ from app.services.invoice_service import (
     InvoiceService,
     LU_VAT_RATES,
 )
-from models.database.invoice import (
+from app.modules.orders.models import (
     Invoice,
     InvoiceStatus,
     VATRegime,
     VendorInvoiceSettings,
 )
-from models.schema.invoice import (
+from app.modules.orders.schemas import (
     VendorInvoiceSettingsCreate,
     VendorInvoiceSettingsUpdate,
 )

tests/unit/services/test_messaging_service.py

@@ -4,7 +4,7 @@
 import pytest
 
 from app.services.messaging_service import MessagingService
-from models.database.message import (
+from app.modules.messaging.models import (
     Conversation,
     ConversationParticipant,
     ConversationType,

tests/unit/services/test_order_item_exception_service.py

@@ -10,8 +10,8 @@ from app.exceptions import (
     ProductNotFoundException,
 )
 from app.services.order_item_exception_service import OrderItemExceptionService
-from models.database.order import OrderItem
-from models.database.order_item_exception import OrderItemException
+from app.modules.orders.models import OrderItem
+from app.modules.orders.models import OrderItemException
 
 
 @pytest.fixture

tests/unit/services/test_order_service.py

@@ -28,7 +28,7 @@ from app.services.order_service import (
     order_service,
 )
 from app.modules.customers.models.customer import Customer
-from models.database.order import Order, OrderItem
+from app.modules.orders.models import Order, OrderItem
 
 
 # Default address fields required by Order model
@@ -328,7 +328,7 @@ class TestOrderServiceUpdates:
 
     def test_update_order_status(self, db, test_vendor, test_customer):
         """Test update_order_status changes status"""
-        from models.schema.order import OrderUpdate
+        from app.modules.orders.schemas import OrderUpdate
 
         order = Order(
             vendor_id=test_vendor.id,

tests/unit/services/test_stats_service.py

@@ -9,7 +9,7 @@ from sqlalchemy.exc import SQLAlchemyError
 
 from app.exceptions import AdminOperationException, VendorNotFoundException
 from app.services.stats_service import StatsService
-from models.database.inventory import Inventory
+from app.modules.inventory.models import Inventory
 from models.database.marketplace_product import MarketplaceProduct
 from models.database.marketplace_product_translation import (
     MarketplaceProductTranslation,