feat: add support bundle and raw audit export

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

@@ -0,0 +1,14 @@
+[Unit]
+Description=Bee: runtime preflight self-check
+After=bee-network.service bee-nvidia.service
+Before=bee-audit.service
+
+[Service]
+Type=oneshot
+ExecStart=/bin/sh -c '/usr/local/bin/bee preflight --output file:/appdata/bee/export/runtime-health.json; rc=$?; if [ "$rc" -ne 0 ]; then echo "[bee-preflight] WARN: preflight exited with rc=$rc"; fi; exit 0'
+StandardOutput=append:/appdata/bee/export/runtime-health.log
+StandardError=append:/appdata/bee/export/runtime-health.log
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target