Companion to the Dockerfile change in 5a2ebf9. The previous manual refresh
note in the Dockerfile becomes automated: a workflow_dispatch + weekly cron
that pulls python:3.12-slim from docker.io and re-pushes it to
repo.anhonesthost.net/cloud-hosting-platform/python:3.12-slim.
Workflow can also be triggered manually from the Gitea UI when Python
publishes patches between cron firings. Logs the upstream and mirror digests
so it's easy to verify "did the mirror really update" after a run.
If more base images need mirroring later (haproxy itself, alpine, etc.),
this workflow should be promoted to a matrix or moved to a dedicated infra
repo — keeping it co-located with haproxy-manager-base for now since it's
the only consumer.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
