Pin pnpm native builds for supply chain security

package.json

@@ -2,6 +2,10 @@
   "name": "next-explorer",
   "version": "0.2.0",
   "private": true,
+  "packageManager": "pnpm@10.18.1",
+  "engines": {
+    "node": "24.x"
+  },
   "scripts": {
     "dev": "PORT=4000 next dev --turbopack",
     "build": "next build --turbopack",
@@ -38,5 +42,13 @@
     "eslint": "^9.39.2",
     "eslint-config-next": "15.5.4",
     "sass": "^1.97.0"
+  },
+  "pnpm": {
+    "onlyBuiltDependencies": [
+      "@parcel/watcher",
+      "esbuild",
+      "sharp",
+      "unrs-resolver"
+    ]
   }
 }