Quick Add becomes the everyday interface: Library grid with shelf/format/status filters, a book page (copies, status, edit shelf and call number, add/remove copy, delete), read-only for the guest. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013wi3ZSot4XbUViwRFgLpRf