package.json scripts

package.json

@@ -4,12 +4,14 @@
   "description": "Map Madison interactively in 3D, and simulate building transit lines.",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
-  "type": "commonjs",
+  "type": "module",
   "dependencies": {
     "three": "^0.181.2",
     "vite": "^7.2.4"