IdleService runs continuously as a FOREGROUND_SERVICE_TYPE_DATA_SYNC
foreground service (push is on by default). With targetSdk 37, Android 14+'s
dataSync FGS runtime cap (~6h per rolling 24h) calls Service.onTimeout(...)
and then force-stops the service — throwing a system FGS-timeout exception —
if it doesn't stop itself. IdleService overrode onStartCommand/onDestroy/onBind
but not onTimeout, so after ~6 cumulative hours push silently died and the app
hit the exception; on API 35+ the budget is cumulative and a restart can't
recover it until the next 24h window.
Override both onTimeout(startId) (deprecated, API 34) and
onTimeout(startId, fgsType) (API 35+); both route to a clean shutdown that
re-asserts the already-scheduled 15-minute periodic sync, swaps the persistent
notification to a degraded "paused" text and DETACHes it so it survives, then
stopForeground(DETACH) + stopSelf so we never leave a dataSync FGS running past
its cap (the exact condition the platform kills on). This mirrors the existing
low-battery PushMode.POLLING fallback.
The push-status text choice is pulled into a pure PushStatusNotification.statusTextRes
seam and unit-tested on the JVM; the built notification's new timed-out text is
covered by PushStatusNotificationInstrumentedTest.
Closes#302
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>