systemd's default KillMode=control-group kills all processes in the
cgroup on service restart, including the detached claude remote-control
process. KillMode=process only kills the main Node.js process, letting
detached children survive. restoreRemoteControl() already handles
reattaching on startup.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
