The SSH private key CluPilot deploys to every host is now stored through
SecretVault (ssh.private_key), preferred over CLUPILOT_SSH_PRIVATE_KEY(_PATH)
at all three real consumers — SshTraefikWriter and HostStep::keyLogin.
kuma.password/kuma.totp stay in .env: they authenticate a separate Python
container at boot, and nothing in this app reads them, so the vault would
have nothing to wire them to.
A new /admin/infrastructure page, backed by App\Support\ProvisioningSettings,
makes the non-secret deployment settings that used to force a shell —
DNS zone, WireGuard hub endpoint and public key, Traefik's dynamic-config
path, the SSH public key, and the monitoring bridge URL — visible and
editable from the console, each wired to every real consumer. WG subnet/hub
IP and Kuma's own connection details stay in .env: the compose file and a
separate container read those before this application ever does.