- Schedule dual content fetch with WorkManager initialDelay to the next
contentFetch cron; reschedule from prefs after success and on boot when
dual_fetch_* exists (DualScheduleFetchRecovery + ReactivationManager).
- When contentFetch has no URL, call NativeNotificationContentFetcher with
FetchContext (prefetch + next notify time); else keep HTTP/mock behavior.
- Add content_cache.cacheScope (dual|daily|legacy), Room v4 migration,
getLatestByScope; DualScheduleHelper reads dual only; daily fetch paths
write daily; NotifyReceiver prefers daily/legacy for legacy cache reads.
- Extract ScheduleCronUtils.calculateNextRunTimeMillis for shared cron math.
- Document in README/CHANGELOG; bump package to 2.1.5.
Add ANDROID_DUAL_SCHEDULE_NATIVE_FETCH_AND_CACHE_SCOPE.md describing the
pre-implementation plan: WorkManager initial delay for dual prefetch,
NativeNotificationContentFetcher when URL is absent, and cacheScope on
ContentCache to separate dual vs daily reminder cache rows.
