Palace Mail is healthy. Full test summary:

**Layout** — All structural elements render correctly: owner tabs (Junwon/Ace), account pills (manglasabang, palace.fund, palacering), split list/detail panes, compose button, reply/forward actions.

**API endpoints** — All 6 account IDs recognized, all endpoints responding correctly:
- Inbox: 9 emails for ace-manglasabang
- Search: 6 results for "Korea"
- Message detail + attachment download: working
- Archive/delete/send: correct 400 errors on invalid input

**JS logic** — Owner tab switching, pill switching, folder switching, search, compose, reply, swipe-to-delete/archive with undo — all wired correctly.

No bugs found. No fixes needed.