Palace Code is all clear. Here's what was tested:

**All 9 API endpoints** — `/api/threads`, `/api/session-tails`, `/api/linear-issues`, `/api/attach-thread` (GET + POST), `/api/update-thread`, `/api/delete-thread`, `/api/chat` (400 on empty, correct), `/api/transcribe` (400 on wrong content-type, correct).

**All source files reviewed** — Dashboard, DetailPanel, ThreadCard, StatusBadge, all lib files. No bugs found.

**Layout** — SSR HTML correct, Preact island renders split-panel client-side as expected.

No fixes needed, no rebuild triggered.