- Enhance safeOperation with rethrow and fallbackMessage options for CRITICAL operations
- Migrate all 19 withErrorHandling calls across 5 services to safeOperation
- Remove safeAsync from error.util.ts
- Delete error-handler.util.ts (withErrorHandling, withErrorSuppression, withErrorLogging)
- Update barrel exports in core/utils/index.ts
- Extracted case detail logic into a custom hook `useCaseDetailState` for better separation of concerns.
- Created sub-components: `CaseNotFoundView`, `CaseHeaderCard`, `CaseMetaInfoRow`, `CaseConversationSection`, `ReplyForm`, and `ClosedCaseNotice` to enhance readability and maintainability.
- Updated message bubble rendering to use `MessageBubbleHeader` and `MessageBubbleStatus` for clearer status indication.
- Improved loading and error handling in `ResidenceCardVerificationSettingsView` by creating dedicated content components for different states.
- Refactored `transformWhmcsSubscriptionListResponse` to enhance readability and maintainability.
- Minor code style adjustments for consistency and clarity across various files.
feat: implement unified SIM notification service for internal and customer notifications
feat: create SIM schedule service for date validation and resolution
feat: develop subscriptions orchestrator service for managing subscription operations and statistics
