- Fix critical async/await bug in chat API token verification
- Add comprehensive authentication debugging logs
- Fix conversations API Zod schema validation for query parameters
- Remove problematic CircularProgress import causing build warnings
- Improve error handling and user feedback in chat component
The main issue was that verifyToken() was called without await, causing
the chat API to receive a Promise object instead of the user payload,
resulting in undefined userId and failed conversation persistence.
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Co-Authored-By: Claude <noreply@anthropic.com>
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