- Remove special cat:{id} handling from permission resolution
- Categories are now just entries with parent_id=""
- Access flows naturally through parent_id chain hierarchy
- Three levels: root (entry_id="") > categories > individual entries
- Explicit denial supported with ops=""
- Updated documentation to reflect cleaner model
Next: deprecate dossier_access table, migrate to access grants
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>