mkandouly/Forum-Backend — reverse-engineered prompt

Build me a simple TypeScript backend for a forum. I want people to be able to sign up, log in, create discussion topics, read a list of topics, open a topic to see replies, add replies, and edit or delete only their own posts and replies.

Please inspect what’s already in the project and keep the style consistent. If there isn’t much there yet, set up a clean API with sensible routes, clear request validation, useful error messages, and a basic data model for users, topics, and replies. Add whatever simple database or storage setup makes sense for this repo, and include seed data so I can try it quickly.

Make sure it’s easy to run locally, with environment settings documented and simple commands for starting the server. Add a short README update that explains what the backend does and shows a few example API calls. Look up current docs online if you need to.