- Change audit log action filter from exact match to ILIKE substring
search so admins can search by partial action names
- Return level 1000 (not 999) for legacy config-based admins in
/me/permissions so frontend correctly enables role management buttons
- Simplify permission registry to return flat list[PermissionSection] with actions as list[str]
- Add user_first_name and user_email to audit log entries via selectinload
- Fix unused import and naming convention lint warnings