perf(build): brutally remove next.js internal legacy polyfills via webpack alias

next.config.mjs

@@ -47,7 +47,16 @@ const nextConfig = {
     NEXT_PUBLIC_APP_VERSION: process.env.NEXT_PUBLIC_APP_VERSION || process.env.npm_package_version || 'dev',
   },
   // Prevent webpack from restarting when .env files are touched via Docker volume mount
-  webpack: (config, { dev }) => {
+  webpack: (config, { dev, isServer }) => {
+    // Completely strip Next.js forced legacy polyfills for modern browser targets
+    if (!isServer) {
+      config.resolve.alias = {
+        ...config.resolve.alias,
+        'next/dist/build/polyfills/polyfill-module': false,
+        'next/dist/build/polyfills/polyfill-nomodule': false,
+      };
+    }
+    
     if (dev) {
       config.watchOptions = {
         ...config.watchOptions,

package.json

@@ -138,7 +138,7 @@
     "prepare": "husky",
     "preinstall": "npx only-allow pnpm"
   },
-  "version": "2.2.50",
+  "version": "2.2.51",
   "pnpm": {
     "onlyBuiltDependencies": [
       "@parcel/watcher",