Version: Deno 2.5.4
Follow the steps at https://docs.deno.com/examples/vue_tutorial/

1. deno run -A npm:create-vite
2. Use Vue and Typescript.
3. deno install
4. deno task dev works as expected.

However:
deno task build fails with

> deno task build
Task build vue-tsc -b && vite build
src/main.ts:3:17 - error TS2307: Cannot find module './App.vue' or its corresponding type declarations.

3 import App from './App.vue'
                  ~~~~~~~~~~~
Found 1 error.

To fix this, create src/vite-env.d.ts with

/// <reference types="vite/client" />

declare module '*.vue' {
  import type { DefineComponent } from 'vue'
  const component: DefineComponent<{}, {}, any>
  export default component
}

Then deno task build creates a proper build at dist as expected and deno task preview works.

However:
Introduce a basic error (const foo = bar;) or a subtle lint issue in src/App.vue such as an unread variable. The deno task build command says it run vue-tsc -b && vite build but it fails to pick up issues in src/App.vue. Running npx vue-tsc -b directly does detect these issues.

One thing I noticed is that node_modules/.tmp/tsconfig.app.tsbuildinfo says {"root":["../../src/App.vue","../../src/main.ts","../../src/vite-env.d.ts"],"version":"5.9.3"} so it's missing the App.vue file.