Shekhar Vaidya 86da27cb8c feat(frontend): add per-page SEO, 404 page, OG tags, and sitemap updates ...

- Replace react-helmet-async (React 19 incompatible) with native React 19
  document metadata hoisting across all pages
- Add per-page <title>, <meta name="description">, <link rel="canonical">,
  og:title, og:description, og:url to HomePage, ProductsPage, ProductDetailPage,
  AboutPage, DisclaimerPage, PrivacyPolicyPage
- Add JSON-LD SoftwareApplication schema to HomePage and BreadcrumbList to
  ProductDetailPage
- Add 404 NotFoundPage with noindex meta and canonical to home
- Add og:site_name, og:image, og:type, twitter:card/title/description/image
  to index.html as static fallback; remove duplicate static canonical
- Update sitemap.xml with product IDs 3321, 3324 and lastmod dates
- Add product screenshots to README and update description
- Add og-image.png placeholder

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-05-12 20:35:48 +05:30

693 KiB

1200x630px

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