Additive guide pass prompted by devteam's first self-service cluster (GUI-driven).
New Section 0 dashboard-vs-CLI selector + per-step **On the command line** /
**In the dashboard** markers; dashboard equivalents for create/resize/teardown.
Gaps closed: registry+imagePullSecret (no platform registry, verified), ingress-nginx
how-to + no-DNS, cluster resize (verified syntax), persistent-storage self-verify,
cert-expiry one-liner, tooling install/version-skew; + ImagePullBackOff/PVC-Pending
troubleshooting. Leak harness caught + fixed two client-doc term leaks. Storage
StorageClass default logged as operator follow-up (template volume_driver unset).
Leak 8/0, gauntlet 38/38, repo-lint 0 fail, L7 receipt re-recorded.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>