All clear. Palace Code is fully operational:

- **Layout**: Page renders correctly with split-panel layout, Palace Code title, thread cards, time window selector
- **APIs**: All 10 endpoints responding correctly — threads (2 active), session-tails, linear-issues (87), attach, update, delete, sync
- **Source**: All components reviewed — Dashboard, DetailPanel, ThreadCard, StatusBadge, AttachDropdown, all lib files — no bugs found
- **No fixes needed**, no rebuild required