- A search icon in the inbox app bar opens an in-bar search field (autofocused, with a
Back/close handler); typing filters the message list by sender, address, subject, and
snippet (case-insensitive), within the current account filter.
- Filtering is reactive over the cached list, so results update live as mail syncs, and
a "No results" state shows when nothing matches.
- assemble/test/lint green; verified on the Android 17 emulator — searching "IMAP"
narrowed three messages to the two whose subject matched, and a non-matching query
showed the empty state.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>