fix(og): resolve font corruption and Next.js 15+ params compatibility

- Replaced corrupted HTML font files with binary WOFF2 versions.
- Updated all opengraph-image.tsx files to await params, as required by Next.js 15+.
- Improved OG image reliability by using SITE_URL for absolute image paths.
- Added scripts/check-og-images.ts for automated production verification.
- Integrated smoke_test job into deployment pipeline.

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

@@ -7,10 +7,11 @@ import { SITE_URL } from '@/lib/schema';
 export const runtime = 'nodejs';
 
 export default async function Image({
-  params: { locale, slug },
+  params,
 }: {
-  params: { locale: string; slug: string };
+  params: Promise<{ locale: string; slug: string }>;
 }) {
+  const { locale, slug } = await params;
   const post = await getPostBySlug(slug, locale);
 
   if (!post) {

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

@@ -5,21 +5,16 @@ import { getOgFonts, OG_IMAGE_SIZE } from '@/lib/og-helper';
 
 export const runtime = 'nodejs';
 
-export default async function Image({ params: { locale } }: { params: { locale: string } }) {
+export default async function Image({ params }: { params: Promise<{ locale: string }> }) {
+  const { locale } = await params;
   const t = await getTranslations({ locale, namespace: 'Blog.meta' });
   const fonts = await getOgFonts();
 
   return new ImageResponse(
-    (
-      <OGImageTemplate
-        title={t('title')}
-        description={t('description')}
-        label="Blog"
-      />
-    ),
+    <OGImageTemplate title={t('title')} description={t('description')} label="Blog" />,
     {
       ...OG_IMAGE_SIZE,
       fonts,
-    }
+    },
   );
 }