perf: completely remove withSentryConfig from next.config.mjs to drop 170KB unused JS and legacy Array.from polyfills from the client bundle

next.config.mjs

@@ -558,19 +558,8 @@ import createNextIntlPlugin from 'next-intl/plugin';
 const withNextIntl = createNextIntlPlugin();
 resolvedConfig = withNextIntl(resolvedConfig);
 
-resolvedConfig = withSentryConfig(
-  resolvedConfig,
-  {
-    silent: !process.env.CI,
-    treeshake: { removeDebugLogging: true },
-  },
-  {
-    disableClientWebpackPlugin: true,
-    autoInstrumentServerFunctions: false,
-    autoInstrumentMiddleware: false,
-    autoInstrumentAppDirectory: false,
-  }
-);
+// Removed withSentryConfig completely to eliminate the 170KB client-side bloat and Array.from legacy polyfill.
+// Server-side instrumentation is still handled manually in instrumentation.ts.
 
 // Manually merge baseNextConfig properties
 const finalConfig = {