more clean up

webapp/frontend/package.json

@@ -10,6 +10,7 @@
   },
   "dependencies": {
     "@tailwindcss/vite": "^4.1.4",
+    "@turf/turf": "^7.2.0",
     "axios": "^1.8.4",
     "chart.js": "^4.4.8",
     "chartjs-adapter-moment": "^1.0.1",
@@ -18,6 +19,7 @@
     "moment": "^2.30.1",
     "pinia": "^3.0.2",
     "pinia-plugin-persistedstate": "^4.2.0",
+    "rbush": "^4.0.1",
     "tailwindcss": "^4.1.4",
     "vue": "^3.5.13",
     "vue-router": "^4.5.0"