feat: add canonical redirect, og_image, next_page_url, and sitemap caching across content routers

Implement canonical_redirect helper in content.py to enforce slug-based 301 redirects for gist, news, post, and project detail pages. Add first_image_url helper to extract primary image from item or attachments for Open Graph meta tags. Inject next_page_url into feed, gists, news, and projects list page SEO contexts for pagination link rel. Extend seo.py with SITEMAP_URL_LIMIT, SITEMAP_TTL constants and _sitemap cache variable for future sitemap generation optimization. Update profile page to raise 404 via not_found instead of 302 redirect, and include og_image from avatar_url.
2026-06-05 18:05:07 +00:00
parent 9a24a90ec5
commit f05b6a4faf
14 changed files with 326 additions and 23 deletions
@@ -83,7 +83,7 @@
            <article class="news-card">
                {% if item.image_url %}
                <div class="news-card-image">
-                    <img src="{{ item.image_url }}" alt="" loading="lazy" class="image-fallback">
+                    <img src="{{ item.image_url }}" alt="{{ item.title }}" loading="lazy" class="image-fallback">
                </div>
                {% endif %}
                <div class="news-card-body">