All systems healthy. Here's the summary:

**Palace Code self-heal complete — all systems nominal.**

- **Layout**: Header, split-panel, thread cards, status badges all rendering correctly
- **API endpoints**: All 7 tested — threads (5 found), session-tails, attachments (90), Linear issues (74), update-thread, sync-linear, delete-thread all returning correct responses
- **Source files**: Dashboard, DetailPanel, ThreadCard, ChatReply, NewChatBar, api.ts, thread-store.ts, web-bridges.ts all reviewed — no bugs found
- **Build**: Clean build, service restarted, post-restart verification passed

No fixes were needed.