Implements automated testing for TEST 4 (Invalid Data Handling) to verify
recovery gracefully handles invalid database entries without crashing.
Changes:
- Add injectInvalidTestData plugin method for injecting invalid test data
(empty schedule IDs, null nextRunAt, empty notification IDs)
- Make test app debuggable to enable direct database access
- Enhance test-phase1.sh with automated database injection and verification:
* Detect debuggable app status (check for DEBUGGABLE flag)
* Inject invalid data via direct SQL (schedules and notifications)
* Handle WAL mode with checkpoint
* Verify data injection success
* Trigger recovery and check logs for "Skipping invalid" messages
* Report pass/fail/inconclusive results
Fixes database constraint issues discovered during testing:
- Include jitterMs and backoffPolicy in schedule inserts
- Include priority, vibration_enabled, sound_enabled in notification inserts
Test results: ✅ PASSED
- Invalid data successfully injected
- Cold start recovery correctly skips invalid entries
- Recovery completes without crashing
- Boot recovery processes invalid data (follow-up improvement needed)
This enables automated verification that recovery handles corrupted or
invalid database entries gracefully, preventing crashes in production.
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