- Introduced NotificationTemplate model for reusable external notification templates.
- Implemented CRUD operations for external templates in NotificationService.
- Added routes for managing external templates in the API.
- Created frontend API methods for external templates.
- Enhanced Notifications page to manage external templates with a form and list view.
- Updated layout and login pages to improve UI consistency.
- Added integration tests for proxy host management with improved error handling.
- Frontend: Increase heartbeat history to 60 items (1 hour)
- Frontend: Add empty bars for alignment when history is sparse
- Frontend: Improve tooltips with detailed status info
- Frontend: Update API client to support limit parameter