fix: handle async searchParams in blog pagination

### Issue:
Next.js 15 requires searchParams to be awaited as it's now a Promise.

**Error Message:**
"Route "/blog" used `searchParams.page`. `searchParams` is a Promise and must be unwrapped with `await`"

### Solution:
Updated `src/app/blog/page.tsx` to properly await searchParams before accessing its properties.

**Changes:**
- **BlogPage component** - Added `await searchParams` before accessing page property
- Used destructuring: `const { page } = await searchParams`
- Updated parseInt to use destructured `page` variable

### Result:
- Fixed runtime error when accessing pagination params
- Pagination now works correctly with async searchParams
- Blog list pages load successfully with `/blog?page=X`

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

dashboard/src/app/blog/page.tsx

@@ -34,8 +34,9 @@ type PageProps = {
 
 export default async function BlogPage({ searchParams }: PageProps) {
   const posts = await getHomepagePosts()
+  const { page } = await searchParams
   const postsPerPage = 10
-  const currentPage = parseInt(searchParams.page || '1', 10)
+  const currentPage = parseInt(page || '1', 10)
   const totalPages = Math.ceil(posts.length / postsPerPage)
 
   if (currentPage < 1 || currentPage > totalPages) {