Whitelist linux-ensure-console-user.js in sudoers, invoke it via passwordless
sudo from the update module, refresh sudoers after privileged server deploy,
and align betterdesk.sh repair paths so systemd unit helpers apply without a
manual root step.
Hardened installs could not replace betterdesk-server in /opt/rustdesk
from Settings → Updates. Add a validated sudo deploy helper, extend
console update sudoers, and sync privileges before server deploy.
Fixes#183