fix: use node-server preset for proper static asset serving

vite.config.ts

@@ -1,8 +1,7 @@
 import { defineConfig } from 'vite'
 import { devtools } from '@tanstack/devtools-vite'
-
 import { tanstackStart } from '@tanstack/react-start/plugin/vite'
-
+import { nitro } from 'nitro/vite'
 import viteReact from '@vitejs/plugin-react'
 import tailwindcss from '@tailwindcss/vite'
 
@@ -18,6 +17,7 @@ const config = defineConfig({
     !isProd && devtools(),
     tailwindcss(),
     tanstackStart(),
+    nitro({ preset: 'node-server' }),
     viteReact(),
   ].filter(Boolean),
 })