expert (E2): a week of the observability queue on a large legacy Prometheus/Alertmanager repo, graded by…

expert (E2): a week of the observability queue on a large legacy Prometheus/Alertmanager repo, graded by…: a task in 3ambench (Harbor dataset). Background: rights was split off from discovery on the 22nd. license-gw is rights' now, per teams/ownership.yaml , and a few tickets below come out of that.