- Add git diff viewer screen accessible via agent dropdown menu
- Implement git_diff_request/response WebSocket messages
- Add dropdown menu to agent screen header with "View Changes" option
- Clear pending permissions when starting new agent turn to prevent conflicts
- Treat agent refusals as completed rather than failed state
- Add test coverage for permission handling edge cases
- Configure vitest to run in single-threaded mode for stability
- Remove redundant wrapper in agent stream view
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Co-Authored-By: Claude <noreply@anthropic.com>