thecleverengineers/bdggames-MERN ? reverse-engineered prompt

Build me a full casino style web app that keeps the same Legend Games look and feel, with the blue and purple theme, banners, wallet area, and game cards. I want a responsive site where players can sign up, log in, update their profile and password, manage their wallet, send deposit and withdrawal requests, and place demo bets on Win Go, K3, and 5D. It should also include bet history, daily rewards, referrals, and a simple transfer flow.

Please add an admin area too, where managers can see players, adjust wallets, and approve or reject payment requests. Use secure login with cookies, role based access for player, manager, and admin, plus basic protection like validation, rate limiting, and safe headers. Store everything properly in the database, including wallet transactions, bets, promotion claims, and audit logs. Keep it in demo mode for now, and make sure there is a simple way to seed the first admin and import old data if needed.