Also write security next to system nodes

src/components/MapNode.tsx

@@ -142,7 +142,7 @@ export const MapNode: React.FC<MapNodeProps> = ({
           } pointer-events-none select-none`}
           style={{ textShadow: '2px 2px 4px rgba(0,0,0,0.8)' }}
         >
-          {name}
+          {name} {security.toFixed(1)}
         </text>
       </g>
     );