**Palace Code self-heal audit: all clear.**

Tested and passed:
- Layout renders correctly (split panel, header, thread list, time selector, new chat button)
- All API endpoints return correct responses (threads, session-tails, linear-issues, attach, update, delete, sync-linear)
- 5 threads in Redis, all with valid session logs
- 80 Linear issues available
- No console errors, no layout glitches, no broken functionality

No fixes were required.