Docker Hub emptied the bitnami/discourse namespace (manifest 3.3.1 -> 404, tags:[]); Bitnami moved
archived images to the bitnamilegacy namespace. bitnamilegacy/discourse:3.3.1 is the byte-identical
drop-in (manifest -> 200, same /bitnami/discourse paths + /opt/bitnami scripts). Re-pin both app +
sidekiq services; bump 0.7.0 -> 0.8.0. Found via cc-ci enrollment.
