**Palace Code — all clear.** Full audit completed, no issues found.

**What was tested:**
- All 9 API endpoints (threads, session-tails, linear-issues, attach-thread, update-thread, delete-thread, sync-linear, transcribe) — all return 200 with correct data
- Layout structure (split-panel, header, nav) — renders correctly
- Source code (Dashboard, DetailPanel, ThreadCard, StatusBadge, thread-store, web-bridges, api) — all logic correct

**Observations (non-breaking):**
- `heartbeats` field not returned by threads API but safely handled with `{}` default
- Several unused components in the codebase (`NewChatBar`, `ChatReply`, `LogPanel`, `StatusTabs`) — dead code but no errors

No fixes needed. Service is healthy on port 6572.