- Added validation to reject non-discord provider types in create, update, test, and preview operations.
- Updated the notifications form to automatically normalize non-discord types to discord.
- Modified UI to display explicit messaging for deprecated and non-dispatch statuses for non-discord providers.
- Enhanced tests to cover new validation logic and UI changes for provider types.
- Introduced EnhancedSecurityNotificationService for provider-based notifications.
- Added migration logic from legacy notification configuration to managed providers.
- Updated NotificationConfig model to reflect API surface changes and maintain legacy fields.
- Enhanced Cerberus middleware to dispatch security events based on feature flags.
- Updated routes to utilize the new enhanced service and handle migration at startup.
- Added feature flag for security provider events to control behavior in production.
- Updated tests to cover new functionality and ensure compatibility with existing behavior.
