style: Fix whitespace issues found by ruff

- Remove trailing whitespace from blank lines
- Ensure code formatting compliance

Author: ai-leaks

src/mockloop_mcp/mcp_tools.py

@@ -2849,7 +2849,7 @@ async def _load_openapi_spec(spec_url_or_path: str) -> dict[str, Any]:
         # Check if it's a JSON string (starts with { or [)
         if spec_url_or_path.strip().startswith(("{", "[")):
             return json.loads(spec_url_or_path)
-        
+
         # Check if it's a URL
         if spec_url_or_path.startswith(("http://", "https://")):
             import aiohttp

tests/integration/test_mcp_proxy_integration.py

@@ -368,7 +368,7 @@ def test_auth_handler_functionality(self, auth_configs):
         # Verify the function returns a valid response
         assert authenticated_request is not None
         assert "headers" in authenticated_request
-        
+
         # Test that credentials were stored
         assert "test_api" in auth_handler.credentials
         assert auth_handler.credentials["test_api"]["auth_type"] == AuthType.API_KEY