Palace Mail is fully healthy. Here's the quick summary:

**All features passing:**
- Layout renders correctly — header, owner tabs (Junwon/Ace), account domain pills, split pane, compose button
- All 6 inbox APIs working (ace-manglasabang: 14 emails, ace-palace: 6, ace-palacering: 3, junwon-manglasabang: 2, junwon-palace: 1, junwon-palacering: 2)
- Sent folder, search, message detail, attachments — all working
- Compose/Reply/Forward flows verified correct
- Owner tab switching, account pill switching, thread mode, swipe gestures, pull-to-refresh — all correct
- No console errors, no broken APIs, no layout issues

Nothing needed fixing.