bemnetzolabura/Surplus ? reverse-engineered prompt

Build me a clean web app called Surplus using this React and TypeScript Vite project.

I want a simple polished interface that feels ready for real use, not just a starter page. Hook it up to the existing api folder, and make sure anything related to file uploads works smoothly with the uploads directory. If there are missing pieces, fill them in with sensible defaults so the app runs end to end.

Focus on a responsive layout, clear navigation, and a few useful screens that make the app feel complete. Keep the styling modern and easy to use, and make sure the code is organized and easy to follow. If you need current docs for anything, look them up online and use the best approach.