feat: Centralize OG image font loading and sizing, simplify product page OG generation, and refine template styling.

app/[locale]/blog/[slug]/opengraph-image.tsx

@@ -1,6 +1,7 @@
 import { ImageResponse } from 'next/og';
 import { getPostBySlug } from '@/lib/blog';
 import { OGImageTemplate } from '@/components/OGImageTemplate';
+import { getOgFonts, OG_IMAGE_SIZE } from '@/lib/og-helper';
 
 export const runtime = 'nodejs';
 
@@ -8,15 +9,19 @@ export default async function Image({ params: { locale, slug } }: { params: { lo
   const post = await getPostBySlug(slug, locale);
 
   if (!post) {
-    return new ImageResponse(
-      <div style={{ display: 'flex', width: '100%', height: '100%', backgroundColor: '#001a4d' }} />
-    );
+    return new Response('Post not found', { status: 404 });
   }
 
+  const fonts = await getOgFonts();
+
+  // We don't have request.url here, but we can assume the domain from SITE_URL or config
+  // For local images during dev, relative paths in <img> might not work in Satori
+  // but if we are in nodejs runtime, we could potentially read from disk.
+  // For now, let's just make sure it's absolute.
   const featuredImage = post.frontmatter.featuredImage
     ? (post.frontmatter.featuredImage.startsWith('http')
-        ? post.frontmatter.featuredImage
-        : `https://klz-cables.com${post.frontmatter.featuredImage}`)
+      ? post.frontmatter.featuredImage
+      : `https://klz-cables.com${post.frontmatter.featuredImage}`)
     : undefined;
 
   return new ImageResponse(
@@ -25,12 +30,13 @@ export default async function Image({ params: { locale, slug } }: { params: { lo
         title={post.frontmatter.title}
         description={post.frontmatter.excerpt}
         label={post.frontmatter.category || 'Blog'}
-        image={featuredImage?.startsWith('http') ? featuredImage : undefined}
+        image={featuredImage}
       />
     ),
     {
-      width: 1200,
-      height: 630,
+      ...OG_IMAGE_SIZE,
+      fonts,
     }
   );
 }
+