chore: complete the Vite+ migration

[naokihaba]

This PR updates our monorepo setup by moving away from Volta and standalone Vite ecosystem tools in favor of Vite+.

Since Volta is no longer maintained (see volta-cli/volta#2080), Node.js versions are now managed with .node-version via Vite+ instead of the volta field in package.json.

This change only affects internal repository tooling. External documentation, create-vue-termui, and user-facing Vite configurations remain untouched.

To verify everything works, I ran vp install --frozen-lockfile, vp check, vp env doctor, and vp run test, and all of them passed as expected. I also ran the full workspace test suite, where all 45 test files (259 tests in total) passed without any TypeScript errors. Finally, the core packages, @vue-termui/three, the docs, and the playground all built without issues.

This is just a proposal, so I'd love to know what you think about switching to Vite+. Feel free to share any feedback or thoughts.

[vercel]

@naokihaba is attempting to deploy a commit to the posva's kitchen Team on Vercel.

A member of the Team first needs to authorize it.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
vue-termui	Ready	Preview	Aug 26, 2026 4:02pm

[naokihaba]

pnpm dlx pkg-pr-new publish --compact --pnpm .
shell: /usr/bin/bash -e {0}
/home/runner/work/_temp/1b6ff2ed-4954-45df-9bb6-7bc0f7fcafd0.sh: line 1: pnpm: command not found
Error: Process completed with exit code 127.

I will fix this.
https://github.com/vue-terminal/vue-termui/actions/runs/32962697919/job/98237675752

• 7aadb89
• eea0dfa

Could you please authorize the Vercel deployment again?

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/vue-termui@70

commit: eea0dfa

[posva]

vercel is just for the docs, so don't worry.
I'm not sure yet if I will use vp instead of the individual packages but I want to give it a try!

[naokihaba]

I'm not sure yet if I will use vp instead of the individual packages but I want to give it a try!

Thanks! Really appreciate your interest in checking out Vite+ 🙌
Let me know if you need any help!