The rc service fetched and reset /root/omarchy-pkgs-rc in ExecStartPre, but
that worktree does not exist until the first RC creates the rc branch — so on
a freshly set up host the unit failed every five minutes, forever, and showed
up as a failed unit in the timer report.
It now runs bin/auto-release-rc from the main checkout, which always exists:
nothing queued exits silently, no rc branch is a clean no-op, and a missing
worktree is created on demand before handing off to the worktree's own
auto-release.
