Hansei desktop releases, served at https://dl.hansei.xyz by the caddy container
(~/projects/caddy). Written by scripts/release-desktop.sh on the workstation,
over ssh — nothing here is generated on this box.

  latest.json   the updater manifest every installed client polls
  latest/       symlink to the current version directory
  <version>/    the artifacts for one release, never rewritten

Deliberately NOT under /srv/hansei: that is a git deploy tree and
deploy-watch.sh checks it out to a commit, which would clobber this.