fix: correct post processing filter logic

scrape-blog.ts

@@ -96,11 +96,7 @@ async function fetchBlogPosts(): Promise<BlogPost[]> {
     results.push(await processPost(url));
   }
 
-  const posts: BlogPost[] = results
+  const posts: BlogPost[] = results.filter((post): post is BlogPost => post !== null);
-    .filter((result): result is PromiseFulfilledResult<BlogPost> => 
-      result.status === 'fulfilled' && result.value !== null
-    )
-    .map(result => result.value);
 
   console.log(`Successfully processed ${posts.length}/${postUrls.length} posts`);
   return posts;