docs(tutorial): setup documentation by VitePress

[DavdGao]

Description

Setup the documentation by VitePress

Checklist

Please check the following items before code is ready to be reviewed.

• Code has been formatted with npm run format command in the root directory
• Docstrings/comments are in appropriate style (TSDoc/JSDoc for TypeScript/JavaScript, Google style for Python)
• Related documentation has been updated (e.g. links, examples, etc.)
• Code is ready for review

[Copilot]

Pull request overview

This PR sets up VitePress documentation for AgentScope-Studio, including comprehensive tutorials in both English and Chinese, API changes to support backward compatibility with deprecated fields, and automated GitHub Pages deployment.

Key Changes:

• Added VitePress v2.0.0-alpha.13 with complete documentation structure
• Deprecated API fields (run_dir, name, role) with backward-compatible fallbacks
• Created bilingual documentation covering quickstart, project management, tracing, and Friday agent
• Added GitHub Actions workflow for automated documentation deployment

Reviewed changes

Copilot reviewed 21 out of 42 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
package.json	Added VitePress alpha version and documentation npm scripts
package-lock.json	Lock file updates for VitePress and its dependencies
packages/server/src/trpc/router.ts	API deprecation with backward-compatible field handling
eslint.config.mjs	Added cache directory to ignored paths
.gitignore	Excluded VitePress build artifacts
docs/.vitepress/config.mts	VitePress configuration with English/Chinese locales
docs/tutorial/**/*.md	Comprehensive documentation content in both languages
.github/workflows/deploy-docs.yml	GitHub Actions workflow for automated deployment

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[cla-assistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
2 out of 3 committers have signed the CLA.

✅ zhijianma
✅ DavdGao
❌ Cirilla-zmh
_{You have signed the CLA already but the status is still pending? Let us recheck it.}