auto-claude: subtask-2-1 - Add caching to getAllBlogPosts using existing Cache

src/lib/blog.ts

@@ -1,5 +1,6 @@
 import fs from 'fs';
 import path from 'path';
+import { cache } from '@/utils/cache';
 
 export interface BlogPost {
   slug: string;
@@ -130,6 +131,14 @@ function parseMarkdownPost(filename: string, content: string): BlogPost | null {
 }
 
 export function getAllBlogPosts(): BlogPost[] {
+  const cacheKey = 'blog:all-posts';
+
+  // Check cache first
+  const cachedPosts = cache.get<BlogPost[]>(cacheKey);
+  if (cachedPosts) {
+    return cachedPosts;
+  }
+
   if (!fs.existsSync(BLOG_POSTS_DIR)) {
     console.warn('Blog posts directory not found:', BLOG_POSTS_DIR);
     return [];
@@ -151,7 +160,12 @@ export function getAllBlogPosts(): BlogPost[] {
   }
 
   // Sort by date descending (newest first)
-  return posts.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
+  const sortedPosts = posts.sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime());
+
+  // Cache the results
+  cache.set(cacheKey, sortedPosts);
+
+  return sortedPosts;
 }
 
 export function getBlogPostBySlug(slug: string): BlogPost | null {