b225ef6344
Human access to OpenBao is LDAP-only today, so operators carry a second set of credentials outside Authentik and group membership is maintained twice. This makes Authentik SSO the offered default on the UI login page and gives `bao login -method=oidc` a working CLI path, while approle and kubernetes (CI and agents) plus the break-glass root path are untouched. Add three modules mirroring the auth_ldap_* structure: auth_oidc_backend mounts a vault_jwt_auth_backend of type oidc, auth_oidc_role creates the default login role, and auth_oidc_group creates an external vault_identity_group plus its group alias so IdP groups map onto policies. Mount the backend at the literal path "oidc". The Authentik provider registers strict redirect URIs containing /ui/vault/auth/oidc/oidc/callback, so the path is load-bearing and must not be renamed. Read client_id and client_secret from kv/service/authentik/oidc-vault, which terraform-authentik generates and writes; nothing is seeded by hand. Match groups on the ak_groups claim rather than groups, because Authentik's default profile mapping only emits direct memberships and the estate nests akP-* permission groups under akR-* roles. Bind akP-vault-admin to global-root, the same policy the LDAP vault_admin group already carries. Only akP-* permission groups are named in config or policy; akR-* roles stay grouping-only. Grant the deployer auth/oidc/* and identity group management, both of which it currently lacks. AppRole capabilities are fixed at login, so these land in an apply before the resources that need them.