Adds a clusterAccess value with five levels:
none — no cluster access (default, no RBAC resources created)
readonlyns — Role + RoleBinding: get/list/watch in release namespace
readwritens — Role + RoleBinding: full access in release namespace
readonly — ClusterRole + ClusterRoleBinding: get/list/watch cluster-wide
readwrite — ClusterRole + ClusterRoleBinding: full access cluster-wide
A ServiceAccount is created for the pod whenever access != none and
referenced in the Deployment's serviceAccountName.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>