Codeman/.changeset/update-codeman-script.md

aicodeman

aicodeman
patch

Docker: new docker/Update-Codeman.sh for the major-update path the docs used to describe by hand (#465). It rebuilds the image with --no-cache before taking the stack down, clears the build-artefact volumes, refuses to run when another checkout's Compose project already owns the same name, and then hands over to Start-Codeman.sh.