V3 Helm CLI capability pack. By-value connector composition (service_kind=cli, no separate ingredient): one local helm CLI ingredient exposes bounded Kubernetes chart operations for readiness, strict chart linting, and local manifest rendering. Project operations run from an explicit project directory cwd supplied at execution time, accept only a trusted relative local chart path, avoid caller-supplied Helm flags, avoid shell wrappers, and never expose install, upgrade, uninstall, rollback, repo, dependency build/update, package, push, pull, registry credentials, kubeconfig, kube-context, namespace, values files, set overrides, cluster validation, or cluster mutation. Lint findings and render diagnostics are returned as inspectable text. Requires helm on PATH.