Add knip for detecting unused files and dependencies

[Boshen]

Summary

• Install knip as dev dependency
• Add knip configuration with VitePress support
• Add pnpm knip script to package.json

Configuration

The knip configuration includes:

• Entry points for VitePress config and theme
• Support for Vue components and markdown files
• Proper handling of dynamically loaded files (Hero.vue via Vite alias)
• Ignores for internal exports used in markdown files that knip can't parse

Test plan

• Run pnpm knip - exits cleanly with no false positives
• Verified Hero.vue is no longer flagged as unused (loaded via Vite alias)
• Verified team.ts exports are properly ignored (used in markdown files)

🤖 Generated with Claude Code

[netlify]

✅ Deploy Preview for oxc-project ready!

Name	Link
🔨 Latest commit	87d77e7
🔍 Latest deploy log	https://app.netlify.com/projects/oxc-project/deploys/691ad6a275682a0008989a71
😎 Deploy Preview	https://deploy-preview-638--oxc-project.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.