Linus Waldowsky 77f15b6dd1 add event CRUD actions and recurring event expansion ...

- Implement full CRUD in MongoEventRepository (findById, findByUserId, findByDateRange, update, delete)
- Extend ChatService to handle create/update/delete actions with dynamic test responses
- Add recurrenceExpander utility using rrule library for RRULE parsing
- Add eventFormatters utility for German-localized week/month overviews
- Add German translations for days and months in shared Constants
- Update client ChatService to support all event actions (action, eventId, updates params)

2026-01-04 16:15:30 +01:00

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client

add event CRUD actions and recurring event expansion

2026-01-04 16:15:30 +01:00

server

add event CRUD actions and recurring event expansion

2026-01-04 16:15:30 +01:00