- Add access_level field to norda_events (public, members_only, rada_only)
- Add is_rada_member field to users table
- Add can_user_view() and can_user_attend() methods to NordaEvent model
- Update calendar routes to filter events by user permissions
- Add access_level dropdown to admin event form
- Rada Izby events only visible to designated board members
- Regular member meetings visible to all NORDA members
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
