imrananshari/socialzyx — reverse-engineered prompt

Build me a simple app called Socialzyx from this Next.js starter. I want it to feel like a small social network where someone can sign in, create a short post, see a home feed of recent posts, and view basic profile pages for users.

Keep it clean and modern, with a nice responsive layout for phone and desktop. The first version should be simple, not overloaded. A user should be able to write, edit, and delete their own posts. Other people should be able to read posts in the feed. If the existing project already has database setup, use it instead of adding a totally different approach.

Please wire up the pages, forms, validation, loading states, and empty states so it feels like a real product, not just a demo. Add basic tests where they make sense, and make sure the app runs locally with npm run dev. Look up current docs online if you need to.