Replace the k8s/-centric deployment section with a provider-agnostic
GitOps pattern (Kustomize base+overlay, pinned tags, operator-managed
secrets, Gateway API routing) and demote k8s/ to reference examples.
Gitignore docs/WEBUI_PLAN.md: this repo is public and that doc holds
private infrastructure details (now relocated to the private gitops repo).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
igodwin