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) {