feat(webmail): conversations - list, stacked reader, inline reply, settings switch

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

.wolf/anatomy.md

@@ -1,7 +1,7 @@
 # anatomy.md
 
-> Auto-maintained by OpenWolf. Last scanned: 2026-10-22T17:41:17.634Z
-> Files: 439 tracked | Anatomy hits: 0 | Misses: 0
+> Auto-maintained by OpenWolf. Last scanned: 2026-10-22T19:44:13.602Z
+> Files: 440 tracked | Anatomy hits: 0 | Misses: 0
 
 > Project structure index. Auto-maintained by OpenWolf hooks and daemon.
 > Run `openwolf scan` to generate, or wait for the first Claude Code session.
@@ -610,6 +610,7 @@
 - `AvatarEditor.tsx` — The frame is square; the mask over it is what makes the photo a circle. (~2510 tok)
 - `MessageReader.tsx` — The document the body frame renders, or null for a text-only message. (~4736 tok)
 - `RecipientInput.tsx` — Entries as they will be sent: `Name <addr>` or a bare address. (~1486 tok)
+- `ThreadReader.tsx` — One message as the mail API returns it with its body. (~7350 tok)
 - `TotpEnrolment.tsx` — The scannable half of TOTP enrolment, shared by the webmail settings page and (~1644 tok)
 
 ## services/webmail/src/components/ui/