The builder keeps one key per module and MAJOR.MINOR in its state reserved, written by compare-and-set when a trunk
build is claimed; nothing is reserved, and the build says wait-held, before the catalog says versions-filled; the key goes
on version-released; a built reservation unpublished past ten minutes is the finding version-unreleased; builder_reserved,
builder_reserved_drop (hand act, recorded) and the seat mesh-builds' verb reserved.
Builds: design 47 G §369, §372, §52, §85 (reserved)
Claude-Session: https://claude.ai/code/session_01JG73KEq4zoDfM9WtYpcQgZ