networksetup -removenetworkservice fails on the sole PPP-port service and
aborted the whole run at exit 4 (before pmset/backup agent). Both it and the
GUI-domain launchctl bootstrap (flaky over SSH) are now best-effort with a
warn; the LaunchAgent plist auto-loads at next login regardless.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>