refactor(safety): apply consistent formatting across services and tests

Improved code readability and uniformity by standardizing line breaks, indentation, and inline conditions across safety-related services, models, and tests, including content filters, validation rules, and emergency controls.

backend/tests/api/routes/test_mcp.py

@@ -44,8 +44,8 @@ def mock_superuser():
 @pytest.fixture
 def client(mock_mcp_client, mock_superuser):
     """Create a FastAPI test client with mocked dependencies."""
-    from app.api.routes.mcp import get_mcp_client
     from app.api.dependencies.permissions import require_superuser
+    from app.api.routes.mcp import get_mcp_client
 
     # Override dependencies
     async def override_get_mcp_client():