Refactor bee CLI and LiveCD integration

iso/overlay/etc/systemd/system/bee-audit.service

@@ -1,11 +1,10 @@
 [Unit]
 Description=Bee: run hardware audit
-After=bee-network.service bee-nvidia.service network-online.target
-Wants=network-online.target
+After=bee-network.service bee-nvidia.service
 
 [Service]
 Type=oneshot
-ExecStart=/usr/local/bin/audit --output file:/var/log/bee-audit.json
+ExecStart=/bin/sh -c '/usr/local/bin/bee audit --runtime livecd --output file:/var/log/bee-audit.json; rc=$?; if [ "$rc" -ne 0 ]; then echo "[bee-audit] WARN: audit exited with rc=$rc"; fi; exit 0'
 StandardOutput=append:/var/log/bee-audit.log
 StandardError=append:/var/log/bee-audit.log
 RemainAfterExit=yes