saibak-racing-marketplace/ ├── client/ ← React + Vite + TailwindCSS │ └── src/ │ ├── App.jsx │ ├── pages/ ← Home, Cars, Motos, Cart, Prompt, Heuristics, +5 más │ ├── components/ ← Sidebar, Navbar, CarCard, LoginModal, Toast │ ├── context/ ← AuthContext, CartContext │ └── data/ ← 12 vehículos de carreras └── server/ ← Node + Express + MongoDB ├── server.js ├── models/ ← User, Vehicle ├── routes/ ← auth, vehicles └── middleware/ ← JWT auth