Refactor tests for improved consistency and readability

- Updated test cases in `test_auth_endpoints.py` to ensure consistent formatting and style.
- Enhanced `test_socket_endpoints.py` with consistent parameter formatting and improved readability.
- Cleaned up `conftest.py` by ensuring consistent parameter formatting in fixtures.
- Added comprehensive tests for API token dependencies in `test_api_token_dependencies.py`.
- Refactored `test_auth_service.py` to maintain consistent parameter formatting.
- Cleaned up `test_oauth_service.py` by removing unnecessary imports.
- Improved `test_socket_service.py` with consistent formatting and readability.
- Enhanced `test_cookies.py` by ensuring consistent formatting and readability.
- Introduced new tests for token utilities in `test_token_utils.py` to validate token generation and expiration logic.

tests/conftest.py

@@ -13,7 +13,6 @@ from sqlmodel import SQLModel, select
 from sqlmodel.ext.asyncio.session import AsyncSession
 
 from app.core.database import get_db
-from app.main import create_app
 from app.models.plan import Plan
 from app.models.user import User
 from app.utils.auth import JWTUtils, PasswordUtils
@@ -199,7 +198,7 @@ async def ensure_plans(test_session: AsyncSession) -> tuple[Plan, Plan]:
 
 @pytest_asyncio.fixture
 async def test_user(
-    test_session: AsyncSession, ensure_plans: tuple[Plan, Plan]
+    test_session: AsyncSession, ensure_plans: tuple[Plan, Plan],
 ) -> User:
     """Create a test user."""
     user = User(
@@ -219,7 +218,7 @@ async def test_user(
 
 @pytest_asyncio.fixture
 async def admin_user(
-    test_session: AsyncSession, ensure_plans: tuple[Plan, Plan]
+    test_session: AsyncSession, ensure_plans: tuple[Plan, Plan],
 ) -> User:
     """Create a test admin user."""
     user = User(