HadiKia/next-blog-app ? reverse-engineered prompt

Please turn this starter Next.js project into a simple, polished blog app. I want it to feel like a real personal blog someone could actually use right away, not just the default template.

Give me a clean home page with a site title, short intro, and a list of blog posts. Each post should open on its own page with a nice reading layout, title, date, cover image if available, and the full content. Add a basic navigation, a simple about page, and make the whole thing responsive so it looks good on phones and laptops.

Use a small set of sample posts stored in the project so it works out of the box. Make the design modern and easy to read, with good spacing and typography. If it makes sense, add small touches like featured posts, empty states, and basic metadata for pages.

Please wire up whatever is missing so I can run it locally and have a finished blog experience. If you need to, look up current Next.js docs online.