Changelog Update
- Improve error message for OpenRouter API connection issues to mention potential rate limiting or upstream provider issues.
- Configure weak models (
gemini/gemini-2.0-flashandopenrouter/google/gemini-2.0-flash-exp:free) for Gemini 2.5 Pro models. - Add model metadata for
openrouter/google/gemini-2.0-flash-exp:free.