Audit and fix HTML metadata including page titles, meta descriptions, canonical URLs, Open Graph tags, Twitter cards, favicons, JSON-LD structured data, and robots directives. Use when adding SEO metadata, fixing social share previews, reviewing Open Graph tags,...

审计并修复HTML元数据，包括页面标题、元描述、规范网址、Open Graph标签、Twitter卡片、图标和JSON-LD结构化数据以及robots指令。适用于添加SEO元数据、修复社交分享预览、审查Open Graph标签等场景