publish, publish-part, versions and remove in the part registry; mirror and tags on the image seat; hold and release on
the two seats distribution holds; published, refused, removed, held and released on each seat's own family.
Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig
One seat.json per seat at the whole grain or the seat list's, parts taken in whole, fixtures as data, an index for the
seat list's reading order; read strictly, at most 256 KiB.
Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig