- Add openrouter/pony-alpha model to models-api.json fixture
- Fix getModel() to lookup models with provider prefix (e.g., openrouter/pony-alpha)
When user specifies openrouter/pony-alpha, the code now correctly looks for
the full model ID including prefix in the provider's models object
This fixes the 'ModelNotFoundError' when using OpenRouter models that have
prefixed IDs in the database.
- Capture todowrite tool events and store todos on messages
- Add API endpoint GET /api/sessions/:sessionId/todos
- Clear todos on message finish, undo, and redo
- Create renderStructuredTodos function with status icons
- Integrate todo display into message rendering
- Add CSS styling for todo items by status and priority
