95c5067dbf
Previous commit (45e2248) committed only the two new theme files; the
six modified files (MainActivity, AuthStore, AppDatabase, AuthSessionDao,
AuthSessionEntity, SettingsScreen) silently didn't get staged. This
commit lands the actual integration so the theme picker works end-to-end.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>