Critical:
- C-01: Populate member_count in GET /calendars for shared calendars
- C-02: Differentiate 423 lock errors in drag-drop onError (show lock-specific toast)
- C-03: Add expired lock purge to APScheduler housekeeping job
Warnings:
- W-01: Replace setattr loop with explicit field assignment in update_member
- W-02: Cap sync `since` param to 7 days to prevent unbounded scans
- W-05: Remove cosmetic isShared toggle (is_shared is auto-managed by invite flow)
- W-06: Populate preferred_name in _build_member_response from user model
- W-07: Add releaseMutation to release callback dependency array
Suggestion:
- S-06: Remove unused ConvertToSharedRequest schema
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>