Backend improvements:
- Add cache auto-clear on settings save (class-settings-v2.php)
- Hooks updated_option action
- Clears connection test transients when local backend settings change
- Add reasoning_content streaming support (class-local-backend-provider.php)
- Handles thinking models like Claude extended thinking
- Captures chunk['choices'][0]['delta']['reasoning_content']
Documentation:
- Add FRONTEND_AND_CHAT_FIX_SUMMARY.md with all fixes
- Add FRONTEND-REFACTOR-PHASE2.md with modularization plan
Note: Splitting effort deferred - will continue iterating on monolith
Next: Fix session history not appearing bug
