- Add null safety check to permission callback to prevent NPE
- Fix fetch time calculation bug that caused double subtraction
- scheduleFetch() now accepts pre-calculated fetchTime directly
- Calculate scheduledTime back from fetchTime for worker data
- Add structured logging (DN|FETCH_SCHEDULING) for better traceability
The permission callback was crashing with NullPointerException when
Capacitor passed a null call parameter. The prefetch scheduling had a
logic error where fetchTime was calculated twice - once in the plugin
and once in the fetcher, causing 10-minute delays instead of 5-minute.
Both issues are now fixed and verified working:
- Permission callback handles null gracefully
- Prefetch schedules correctly 5 minutes before notification
- WorkManager job fires at the correct time
- All structured logs appear in logcat
Closes prefetch scheduling investigation.
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