Event location (FK lookup) and description were both visible in the session
view but had no edit controls — lost during V3 migration. Restored both:
- event_location_id: select dropdown populated from this event's location list
(liveQuery on db_events.location filtered by event_id from the session object)
- description: textarea editor shown directly in edit_mode (no collapse needed
when actively editing)
Also added event_location_id to editable_fields__event_session, which was
missing and would have caused backend rejections on PATCH.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Created .editable_fields.ts files for Journals, Events, and Sponsorships modules
- Standardized the whitelist pattern across the entire codebase
- Updated TODO.md and GEMINI.md with recent accomplishments and learnings
