**Palace Mail self-heal complete — all clear.**

The agent did a comprehensive audit across all features:

**Tested:**
- Page layout (header, owner tabs, split pane, compose button)
- All 6 mail accounts (junwon/ace × manglasabang/palace/palacering)
- INBOX and Sent folder loading
- API endpoints: inbox, message, search, attachment, subscribe, archive, delete
- JavaScript logic: compose, reply, forward, thread grouping, null guards
- Account switching, owner tab switching

**Result:** No bugs found. No fixes needed. Everything passes.