feat(node): ship managed environment startup and USB recovery

apps/node-agent/packaging/preinst

@@ -14,10 +14,22 @@ if [ "$1" = install ] || [ "$1" = upgrade ]; then
       exit 1
     fi
   fi
+  mc_node_usb_job=$(systemctl show --property=ActiveState --value mission-core-node-usb-startup.service 2>/dev/null || true)
+  case "$mc_node_usb_job" in
+    activating|deactivating) echo "Mission Core Node: дождитесь завершения обнаружения USB при загрузке." >&2; exit 1 ;;
+  esac
+  if [ -f /run/mission-core-usb-startup/pending.json ]; then
+    echo "Mission Core Node: восстановление USB ещё не завершило включение порта; пакет сохранён." >&2
+    exit 1
+  fi
   mc_node_x4_job=$(systemctl show --property=ActiveState --value mission-core-node-insta360-x4-profile.service 2>/dev/null || true)
   case "$mc_node_x4_job" in
     active|activating) echo "Mission Core Node: дождитесь завершения подготовки X4." >&2; exit 1 ;;
   esac
+  mc_node_vesc_job=$(systemctl show --property=ActiveState --value mission-core-node-vesc-prepare.service 2>/dev/null || true)
+  case "$mc_node_vesc_job" in
+    active|activating) echo "Mission Core Node: дождитесь завершения подготовки VESC." >&2; exit 1 ;;
+  esac
   mc_node_device_job=$(systemctl show --property=ActiveState --value mission-core-node-realsense-prepare.service 2>/dev/null || true)
   case "$mc_node_device_job" in
     active|activating) echo "Mission Core Node: дождитесь завершения подготовки устройства." >&2; exit 1 ;;
@@ -38,6 +50,7 @@ if [ "$1" = install ] || [ "$1" = upgrade ]; then
       (umask 077; : > /run/mission-core-node-k1-upgrade-active)
       systemctl stop mission-core-k1.service
     fi
+    systemctl stop mission-core-vesc.service 2>/dev/null || true
     systemctl stop mission-core-node-monitor.service 2>/dev/null || true
   fi
   . /etc/os-release