feat(SystemStatistics): add system jumps and kills statistics with toggle functionality

frontend/src/components/MapNode.tsx

@@ -16,6 +16,10 @@ interface MapNodeProps {
   signatures?: number;
   isDraggable?: boolean;
   disableNavigate?: boolean;
+  jumps?: number;
+  kills?: number;
+  showJumps?: boolean;
+  showKills?: boolean;
 }
 
 export const MapNode: React.FC<MapNodeProps> = ({
@@ -33,6 +37,10 @@ export const MapNode: React.FC<MapNodeProps> = ({
   signatures,
   isDraggable = false,
   disableNavigate = false,
+  jumps,
+  kills,
+  showJumps = false,
+  showKills = false,
 }) => {
   const [isHovered, setIsHovered] = useState(false);
   const [isDragging, setIsDragging] = useState(false);
@@ -204,6 +212,35 @@ export const MapNode: React.FC<MapNodeProps> = ({
         >
           {signatures !== undefined && signatures > 0 && `📡 ${signatures}`}
         </text>
+        
+        {/* Statistics display */}
+        {showJumps && jumps !== undefined && (
+          <text
+            x="0"
+            y={textOffset + 30}
+            textAnchor="middle"
+            fill="#60a5fa"
+            fontSize="10"
+            className="pointer-events-none select-none"
+            style={{ textShadow: '1px 1px 2px rgba(0,0,0,0.8)' }}
+          >
+            🚀 {jumps}
+          </text>
+        )}
+        
+        {showKills && kills !== undefined && (
+          <text
+            x="0"
+            y={textOffset + 45}
+            textAnchor="middle"
+            fill="#f87171"
+            fontSize="10"
+            className="pointer-events-none select-none"
+            style={{ textShadow: '1px 1px 2px rgba(0,0,0,0.8)' }}
+          >
+            ⚔️ {kills}
+          </text>
+        )}
       </g>
     );
   }