Add devDependency @types/node so TypeScript can understand Node.js APIs

Author: t089

Plugins/PackageToJS/Templates/package.json

@@ -9,5 +9,8 @@
     },
     "dependencies": {
         "@bjorn3/browser_wasi_shim": "0.3.0"
+    },
+    "devDependencies": {
+        "@types/node": "^22.0.0"
     }
 }