- Add detach functionality for individual occurrences of recurring events
- Create POST /api/events/<id>/occurrences/<date>/detach endpoint
- Implement EventException-based EXDATE generation for master events
- Add user confirmation dialog for single vs series editing choice
- Implement manual recurrence expansion with DST timezone tolerance
- Support FREQ=DAILY and FREQ=WEEKLY with BYDAY patterns and UNTIL dates
- Create standalone events from detached occurrences without affecting master series
- Add GET /api/events/<id> endpoint for fetching master event data
- Allow editing recurring series even when master event date is in the past
- Replace browser confirm dialogs with Syncfusion dialog components
- Remove debug logging while preserving error handling
- Update documentation for recurring event functionality
BREAKING: Frontend now manually expands recurring events instead of relying on Syncfusion's EXDATE handling
This enables users to edit individual occurrences of recurring events (creating standalone events)
or edit the entire series (updating all future occurrences) through an intuitive UI workflow.
The system properly handles timezone transitions, holiday exclusions, and complex recurrence patterns.
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