Palace Code is fully operational. Here's what was tested:

**Layout:** Page loads correctly with title "Palace Code", split-panel layout CSS present, thread cards, detail panel, window picker, and new chat button all present.

**API endpoints — all passing:**
- `GET /code/api/threads` — returns threads ✓
- `GET /code/api/session-tails` — returns session entries ✓
- `POST /code/api/delete-thread` — returns `{"ok":true}` ✓
- `POST /code/api/update-thread` — returns `{"ok":true}` ✓
- `GET /code/api/attach-thread` — returns attachments ✓
- `POST /code/api/sync-linear` — returns `{"ok":true}` ✓
- `POST /code/api/chat-stream` — SSE stream with `thread`, `text`, `done` events ✓

**No bugs found. No fixes needed.**