Perform a Standard Audit on AI-Generated UI Using Web-Design-Guidelines

### Official Translation: Introduce Vercel Labs' Agent Skill "web-design-guidelines": This tool audits UI accessibility, UX and performance compliance in accordance with Web Interface Guidelines. Explain its attribution and version, the mechanism of pulling remote specifications before each audit, the coverage of over 100 rules, the file:line output format, as well as the installation and triggering methods using `npx skills add` in tools such as Cursor / Claude Code / Codex. Also list applicable scenarios and precautions such as internet dependency.