fix(og-image): resolve 404s, migrate middleware to proxy.ts, and fix local port conflict

scripts/check-og-images.ts

@@ -22,7 +22,7 @@ async function verifyImage(path: string): Promise<boolean> {
 
     console.log(`Checking ${url}...`);
 
-    const body = await response.text();
+    const body = await response.clone().text();
     const contentType = response.headers.get('content-type');
 
     if (response.status !== 200) {