Lets two recipes be tested in parallel (operator request — immich + plausible under
active dev at once). Safe on the current node: measured a full immich CI stack at
~1GiB with multiple GiB free on the 7.6GiB cpx22, and the janitor is already
age-based + run-app-scoped so it never reaps a concurrent in-flight run. Updates the
stale '28GiB node' comment. Revert to 1 if OOM/IO contention shows up.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>