* fix(calendar): expose source in calendar list and add per-calendar delete
- GET /api/calendar/calendars now includes source field so the frontend
can distinguish CalDAV collections from local calendars
- Add DELETE /api/calendar/calendars/{cal_id} to remove a specific
calendar and its events by owner-scoped ID
* fix(settings): show all CalDAV calendars in integrations list
Previously one card was shown for the CalDAV server connection regardless
of how many calendar collections had been synced. The Calendars page showed
them all; Settings did not.
- Fetch /api/calendar/calendars alongside existing requests and render
one card per source=caldav collection, falling back to the single
server-level card if nothing has synced yet
- Delete now targets the specific calendar by ID rather than clearing
the whole server config
- Confirm dialog shows the calendar name so the user can verify before
removing
Greg Stevenson
01f1278811