fork of prime agent with changes i want but are not upstreamable probqbly (and some fixes)

test(ci): cover scheduled scans and cold worker contention (#2302) master

* test(ci): cover scheduled scans and cold worker contention (fixes #2211) * test(ci): satisfy the UI installation gate (fixes #2211) * test(ci): compose catalog and resident readiness probes (fixes #2211)