feat(cli): show package manager and Node.js version in --version

[nekomoyi]

Enhances vp --version to display configured package manager and node version.

Example output:

VITE+ - The Unified Toolchain for the Web

vp v0.0.0

Local vite-plus:
  vite-plus  v0.0.0

Tools:
  vite             v8.0.0
  rolldown         v1.0.0-rc.9
  vitest           v4.1.0
  oxfmt            v0.40.0
  oxlint           v1.55.0
  oxlint-tsgolint  v0.16.0
  tsdown           v0.21.2

Environment:
  Package manager  pnpm v10.28.0
  Node.js          v22.18.0 (.node-version)

Closes #889

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[fengmk2]

@nekomoyi You need to run snap test in your local development environment, I expect there will be snap diffs updates

[fengmk2]

let me rerun it before merge. @nekomoyi Thanks!

[nekomoyi]

@fengmk2 Thanks for the review! The snap test is failing because there's an extra newline in the output. I'm currently updating the output format to match the preceding Tools format and will add new tests accordingly.