sanwortley/proyectoTesis — reverse-engineered prompt

Build me a web app for managing a pádel tournament called Pro Cup Padel.

I want players to be able to register, sign in, join tournaments, and form teams. An organizer should be able to create tournaments, manage registered teams, edit or remove teams, and generate groups when there are at least 4 teams in a tournament. The groups should be created randomly. The app should also support tournament brackets or keys so the organizer can manage the competition.

Use a simple React frontend with a Node and Express backend, and store everything in PostgreSQL. It should run locally with Docker Compose, with the frontend on port 5173 and the backend API on port 3000. Please include the database setup so it starts cleanly in Docker.

Keep the interface simple and clear, in Spanish, since this is for a thesis project. There should be an organizer user available for testing, and normal players should be able to create their own accounts.