fix(frontend): smooth realtime dashboard refreshes

app/game-frontend/src/main.ts

@@ -6,6 +6,11 @@ import './assets/main.css';
 
 const app = createApp(App);
 
+// Vue emits component init/render/patch measures in development builds. This
+// keeps realtime refresh profiling available in Chromium DevTools without
+// adding production runtime work.
+app.config.performance = import.meta.env.DEV;
+
 const pinia = createPinia();
 app.use(pinia);
 app.use(router);