Implement comprehensive data access layer for Core Data entities:
- Add NotificationContentDAO, NotificationDeliveryDAO, and NotificationConfigDAO
with full CRUD operations and query helpers
- Add DailyNotificationDataConversions utility for type conversions
(Date ↔ Int64, Int ↔ Int32, JSON, optional strings)
- Update PersistenceController with entity verification and migration policies
- Add comprehensive unit tests for all DAO classes and data conversions
- Update Core Data model with NotificationContent, NotificationDelivery,
and NotificationConfig entities (relationships and indexes)
- Integrate ReactivationManager into DailyNotificationPlugin.load()
DAO Features:
- Create/Insert methods with dictionary support
- Read/Query methods with predicates (by timesafariDid, notificationType,
scheduledTime range, deliveryStatus, etc.)
- Update methods (touch, updateDeliveryStatus, recordUserInteraction)
- Delete methods (by ID, by key, delete all)
- Relationship management (NotificationContent ↔ NotificationDelivery)
- Cascade delete support
Test Coverage:
- 328 lines: DailyNotificationDataConversionsTests (time, numeric, string, JSON)
- 490 lines: NotificationContentDAOTests (CRUD, queries, updates)
- 415 lines: NotificationDeliveryDAOTests (CRUD, relationships, cascade delete)
- 412 lines: NotificationConfigDAOTests (CRUD, queries, active filtering)
All tests use in-memory Core Data stack for isolation and speed.
Completes sections 4.4, 4.5, and 6.0 of iOS implementation checklist.
