fix: Bug - Add logout in mobile version of settings, allow clearing data on android

Expose settings logout on mobile where the title bar is hidden, and enable
Capacitor data settings with storage visibility and local erase/sign-out.

Co-authored-by: Cursor <cursoragent@cursor.com>

agents-docs/features/mobile-capacitor.md

@@ -256,6 +256,7 @@ Network security configs:
 - `MobileCallSessionService` — CallKit + foreground service + in-call notifications.
 - `App` bootstrap — initializes mobile persistence, lifecycle, app-update polling, call-session, and push registration wiring.
 - `MobileAppUpdateService` — periodic Play Store / App Store checks (30 min) and settings UI actions; mirrors Electron `DesktopAppUpdateService` polling but uses native store APIs instead of release manifests.
+- Settings → **Data** on Capacitor shells shows the private app-data root and **Erase user data** (`LocalUserDataService` clears SQLite, Capacitor attachment files, auth tokens, and `metoyou_*` localStorage keys, then logs out).
 
 ## Phase 3 completion notes