Update vite.config.ts

vite.config.ts

@@ -18,6 +18,7 @@ export default defineConfig(({mode}) => {
     server: {
       // HMR is disabled in AI Studio via DISABLE_HMR env var.
       // Do not modify—file watching is disabled to prevent flickering during agent edits.
+      allowedHosts: true,
       hmr: process.env.DISABLE_HMR !== 'true',
     },
   };