Add JSON-LD Structured Data

[sondt99]

Adding JSON-LD structured data helps search engines understand the content better and can improve search result appearance.

Proposed Solution

Add structured data for:

1. Website - site name, url, description
2. BlogPosting - each post with title, date, author, image
3. Person - author information
4. BreadcrumbList - navigation structure

Example for BlogPosting

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "BlogPosting",
  "headline": "Post Title",
  "datePublished": "2024-01-01",
  "author": {
    "@type": "Person",
    "name": "Thai Son Dinh"
  },
  "image": "https://...",
  "description": "Post excerpt"
}
</script>

Acceptance Criteria

• JSON-LD added to post pages
• Website schema on homepage
• Valid structured data (test with Google Rich Results Test)