- Link categories to user groups via new zielgruppen column on
veranstaltung_kategorien (migration 017), editable in the category
management UI with group checkboxes and chip display
- Fix broken iCal share link by adding ICAL_BASE_URL to docker-compose
and falling back to CORS_ORIGIN when ICAL_BASE_URL is unset
- Remove the colored-dot legend footer from the month calendar view
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
