Update welcome post content and formatting; implement dynamic blog owner name in layout and post metadata; add author field to post structure and API routes.

src/app/api/admin/posts/route.ts

@@ -22,6 +22,7 @@ export async function POST(request: Request) {
       date,
       tags,
       summary,
+      author: process.env.NEXT_PUBLIC_BLOG_OWNER + "'s" || 'Anonymous',
     });
 
     // Write the file

src/app/api/admin/upload/route.ts

@@ -44,6 +44,7 @@ export async function POST(request: Request) {
       date: data.date || new Date().toISOString().split('T')[0],
       tags: data.tags || [],
       summary: data.summary || '',
+      author: process.env.NEXT_PUBLIC_BLOG_OWNER + "'s" || 'Anonymous',
     });
   } catch (error) {
     console.error('Error uploading file:', error);