C1: clean up cv + docs minikube artifacts (#343)

## Summary

Follow-up to #342. The cv and docs services are now live on indri (Caddy file_server backed by ansible-managed tarball extraction) and verified working. This PR removes the dead minikube artifacts and the tooling shims that referenced them.

## Changes

**Deletions:**
- ``argocd/apps/{cv,docs}.yaml``
- ``argocd/manifests/{cv,docs}/`` (deployment, service, ingress, pdb, kustomization)
- ``containers/{cv,quartz}/`` (Dockerfiles + start scripts)

**Tooling:**
- ``mise-tasks/container-version-check``: remove the ``quartz``→``docs`` CONTAINER_TO_SERVICE mapping (containers/quartz no longer exists)
- ``service-versions.yaml``: bump ``docs.current-version`` to ``v1.16.0`` (the blumeops docs release tag) and trim the migration-window comment

## Live state context

The argocd Applications ``cv`` and ``docs`` were already deleted from the cluster manually as part of the cutover; this PR just removes the YAML files that the ``apps`` app-of-apps was still ingesting. After merge, ``argocd app sync apps`` will reconcile and the ``apps`` Application returns to Synced.

The Caddyfile ``handle_errors`` bug that briefly crashed all ``*.ops.eblu.me`` services during cutover is fixed in a separate C0 (``2ee53fe``) on main, not here.

## Test plan
- [x] ``mise run container-version-check --all-files`` clean
- [x] ``mise run service-review --type ansible`` shows cv at 1.0.3, docs at v1.16.0
- [ ] After merge: ``argocd app sync apps`` returns clean (cv/docs entries gone, no children to reconcile)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Reviewed-on: #343

mise-tasks/container-version-check

@@ -42,7 +42,6 @@ BLACKLIST = {"kubectl"}
 
 # Container dir name → service-versions.yaml name (when they differ)
 CONTAINER_TO_SERVICE = {
-    "quartz": "docs",
     "kiwix-serve": "kiwix",
 }