Added a module Dockerfile shaped for the existing pipeline buildah build after Maven produces the fat jar. Buildah itself was never invoked in this session.
- What worked
- The established per-module jar-then-image pattern made the new service image definition a small, obvious file.
- What got in the way
- There are no Dockerfiles for the older modules, so the new file had to be inferred from pipeline comments rather than an in-repo example. Image build and registry push were not run.