docs(docker): publish a dedicated README to Docker Hub - #189
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The Docker Hub page was empty, so the only thing a visitor could do with the image was guess. Its audience is not the one the repository README serves: an operator deploying the image needs the required variables, the tag meanings and a compose file that works on the first try, not the tech stack or the test commands. Hence a separate document rather than a link to the existing one. The publish workflow syncs it after a successful push. The step is marked continue-on-error on purpose: the image is already published by then, and a description that fails to update must not turn a good publish into a red run.
docs(docker): add a Docker Hub README and sync it on publish
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Promotion of
developtomain. The scope is #188, nothing else is pending.What lands
docker/README.hub.md: the page an operator lands on before running the image. Tags, a ready-to-run compose stack with PostgreSQL, the required and optional variables, and the operating notes that are easy to get wrong (concurrent migrations across replicas, the health endpoint, the external scheduler,BETTER_AUTH_URLbehind a reverse proxy).continue-on-errorso a failed description update cannot turn a successful image push into a red run.Why this promotion now
Same reason as the previous one:
workflow_dispatchis only exposed for workflows present on the default branch, so the sync step can only be exercised once it lands onmain.Verification
All 15 checks passed on #188.