- Use safe .get() for server URL to avoid KeyError - Support both api_key and token in connection test auth - Add OpenAI/Volcano image format (image_url) support - Add aiohttp import in _test_openclaw_connection
- Use safe .get() for server URL to avoid KeyError - Support both api_key and token in connection test auth - Add OpenAI/Volcano image format (image_url) support - Add aiohttp import in _test_openclaw_connection