The old 3-phase Helm chart upgrade plan predates the Mikado system.
Replace it with a proper C2 chain that targets Grafana 12.x with
kustomize manifests and home-built containers (no upstream images).
Cards:
- upgrade-grafana (goal, requires both below)
- kustomize-grafana-deployment (leaf)
- build-grafana-container (leaf)
Also records the current deployed version (v11.4.0) in
service-versions.yaml from the first-ever Grafana review.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
