fix: update test imports to use new DDD structure

Author: CarterPerez-dev

backend/tests/integration/test_auth.py

@@ -6,8 +6,8 @@
 import pytest
 from httpx import AsyncClient
 
-from models.User import User
-from models.RefreshToken import RefreshToken
+from user.User import User
+from auth.RefreshToken import RefreshToken
 
 
 URL_LOGIN = "/v1/auth/login"

backend/tests/integration/test_users.py

@@ -6,7 +6,7 @@
 import pytest
 from httpx import AsyncClient
 
-from models.User import User
+from user.User import User
 
 
 URL_USERS = "/v1/admin/users"