build_desktop.sh now reads the version first and removes anything in
desktop/release/ that is not that version (plus the regenerated unpacked
trees), so a version bump never leaves old installers lying around — the
same rule push_desktop.sh applies to the feed.
Both scripts now read the version from desktop/package.json: the build
report and checksums only cover the current version's artifacts, the feed
copy ignores older files, and publishing prunes previous installers from
the feed (latest*.yml only ever points at the current one).
deploy/build_desktop.sh builds the Arch, Debian and Windows packages into
desktop/release/ without publishing anything, lists what it produced with
sizes and SHA-256 sums for release notes, and prints the suggested Gitea
tag. Installing locally, handing the files out and attaching them to a
Gitea release all stay manual; push_desktop.sh remains the update-feed
publisher.
JakeBreath