Add PushTokenService with Firebase Messaging fallback to install
placeholders, conditional google-services Gradle plugin, fcm-setup.md,
and mark Android UI checklist api-done via prod e2e 16/16.
Co-authored-by: okuma <o0kuma@users.noreply.github.com>
Scaffold `mobile/` against core-backend APIs (signup, chat, draft,
veto, retract, autonomy/whitelist). Update roadmap/README/AGENTS so
participant PoC #1/#3 stays the final Phase 1 step after app build.
Co-authored-by: okuma <o0kuma@users.noreply.github.com>
Cursor Agent