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]/api/og/product/route.tsx

@@ -5,13 +5,15 @@ import { OGImageTemplate } from '@/components/OGImageTemplate';
 import { NextRequest } from 'next/server';
 import { getOgFonts, OG_IMAGE_SIZE } from '@/lib/og-helper';
 
+import { SITE_URL } from '@/lib/schema';
+
 export const runtime = 'nodejs';
 
 export async function GET(
   request: NextRequest,
   { params }: { params: Promise<{ locale: string }> },
 ) {
-  const { searchParams, origin } = new URL(request.url);
+  const { searchParams } = new URL(request.url);
   const slug = searchParams.get('slug');
   const { locale } = await params;
 
@@ -58,7 +60,7 @@ export async function GET(
   const featuredImage = product.frontmatter.images?.[0]
     ? product.frontmatter.images[0].startsWith('http')
       ? product.frontmatter.images[0]
-      : `${origin}${product.frontmatter.images[0]}`
+      : `${SITE_URL}${product.frontmatter.images[0]}`
     : undefined;
 
   return new ImageResponse(