common and plays/configure-vm-time-sync.yml masked systemd-timesyncd on
every KVM guest, assuming a Proxmox host supplies the time. The Proxmox
VMs are gone; the only KVM guests left are the Hetzner/netcup VPS hosts,
which have no such host. netbird.renner.uno ran with no NTP client since
provisioning, drifted behind authentik, and NetBird management rejected
SSO tokens with "token used before issued".
Drop both masking paths and add a timesyncd role to the netbird server
and proxy plays; it unmasks, enables and starts systemd-timesyncd and
waits for NTPSynchronized=yes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>