Replaces the static status notification with a native Android chronometer that
counts DOWN to the session end — the system ticks it every second with zero app
CPU/battery, visible without opening the app.
- modules/bbp-notify: a ~50-line local Expo module using only NotificationCompat
(setWhen + setUsesChronometer + setChronometerCountDown + ongoing). Zero
third-party dependencies, no Firebase — fits the de-Googled ethos. Verified:
autolinks + Kotlin compiles.
- sessionStatus.ts uses it when present, else falls back to the expo-notifications
static expiry-time notification.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
