/add-seo

Add comprehensive SEO to a page using Next.js 15 Metadata API.

Generate:

• Metadata object with title, description, keywords
• Open Graph tags for social media sharing (title, description, image, type, url)
• Twitter Card tags for Twitter sharing
• Canonical URL configuration
• Robots meta tags for indexing control
• JSON-LD structured data (Schema.org) for rich snippets
• Dynamic metadata generation function for dynamic routes
• Image optimization for Open Graph images
• Sitemap.xml generation (if not exists)
• Robots.txt configuration (if not exists)

Include proper meta tag hierarchy, social preview testing notes, and SEO best practices. Implement dynamic metadata for pages with parameters. Ensure all metadata is type-safe with TypeScript.