...

package-lock.json

@@ -11,6 +11,7 @@
         "@sveltejs/vite-plugin-svelte": "^7.0.0",
         "@tailwindcss/vite": "^0.0.0-insiders.aaaefe8",
         "@tsconfig/svelte": "^5.0.8",
+        "@types/leaflet": "^1.9.21",
         "@types/node": "^24.12.0",
         "leaflet": "^1.9.4",
         "svelte": "^5.53.7",
@@ -992,6 +993,23 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/geojson": {
+      "version": "7946.0.16",
+      "resolved": "https://registry.npmjs.org/@types/geojson/-/geojson-7946.0.16.tgz",
+      "integrity": "sha512-6C8nqWur3j98U6+lXDfTUWIfgvZU+EumvpHKcYjujKH7woYyLj2sUmff0tRhrqM7BohUw7Pz3ZB1jj2gW9Fvmg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@types/leaflet": {
+      "version": "1.9.21",
+      "resolved": "https://registry.npmjs.org/@types/leaflet/-/leaflet-1.9.21.tgz",
+      "integrity": "sha512-TbAd9DaPGSnzp6QvtYngntMZgcRk+igFELwR2N99XZn7RXUdKgsXMR+28bUO0rPsWp8MIu/f47luLIQuSLYv/w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/geojson": "*"
+      }
+    },
     "node_modules/@types/node": {
       "version": "24.12.0",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-24.12.0.tgz",