Introduces BaseEntityService and SyncPlugin to eliminate code duplication across entity services
Improves:
- Code reusability through inheritance and composition
- Sync infrastructure for all entity types
- Polymorphic sync status management
- Reduced boilerplate code by ~75%
Supports generic sync for Event, Booking, Customer, and Resource entities
Implements a more flexible, modular approach to IndexedDB storage:
- Introduces IStore interface for dynamic store creation
- Adds specialized services for each entity (BookingService, CustomerService, etc.)
- Moves serialization logic to entity-specific classes
- Improves dependency injection and extensibility
Enables easier addition of new entity types with minimal configuration
