Convention B (Docker-Hub-style <service>:<full-version>) mirrors the
just-shipped couchbase rename. Workflow images/tags/subject-name flip
from oraclejdk-8 to oraclejdk; 8 major-line alias added. Both
metadata-action labels: block and Dockerfile LABEL lines carry the same
5 OCI image-spec keys so manual and CI builds match.
License: LicenseRef-Oracle-BCL (Oracle Binary Code License covered 8u201
binaries; SPDX has no exact identifier, custom ref is the compliant
escape hatch).
tiennm99