## Palace Mail Self-Heal Complete

One bug found and fixed:

**Bug: Attachment downloads fail for emails in non-INBOX folders (Sent, Archive, etc.)**

The attachment chip URLs in `mail.astro` were missing the `folder` parameter, causing `attachment.ts` to default to `INBOX`. This made Sent/Archive attachments return HTTP 404.

**Fix applied** to `palacering/src/pages/mail.astro`:
- Line 1348 (single email view): added `&folder=` + `encodeURIComponent(state.folder)`
- Line 1479 (thread conversation view): same fix

App rebuilt and restarted. All other features tested and working:
- Layout renders correctly (owner tabs, account pills, split view)
- Inbox API returns mail for all 6 accounts
- Message detail, search, archive, delete all function correctly
- Compose modal, reply pre-fill, owner/account switching all work