Palace Code is fully operational. Here's the test summary:

**All clear — no fixes needed.**

### What was tested:

**API Endpoints (all returned 200):**
- `/code/api/threads` — 6-9 threads with log lines
- `/code/api/session-tails` — 5 session log entries
- `/code/api/linear-issues` — 74 issues
- `/code/api/attach-thread` — 81 attachments
- `/code/api/update-thread`, `delete-thread`, `sync-linear` — all functional

**Components reviewed:**
- `Dashboard.tsx` — split-panel layout, time window selector, thread groups, new chat button ✓
- `DetailPanel.tsx` — session log display, chat input ✓
- `ThreadCard.tsx` — swipe-to-delete/archive, status badge, Linear badge ✓
- All hooks (`useThreads`, `useSessionLog`, `useGamepad`) and utilities ✓

**Observations (non-breaking):**
- `heartbeats` field not in threads API response — safely handled with `|| {}`
- Several unused legacy components (`ChatReply`, `NewChatBar`, etc.) — not imported, no impact

Palace Code is healthy.