React Developer for AI App Deployment

I need a React developer to deploy an existing AI-powered roleplay training app (~1,800 lines of JSX), add username/password login with user accounts, store session history in a database, and connect everything to my domain worthytrainings.com. The app uses the Anthropic Claude API. Code is clean and ready to hand off. Looking for a fixed-price quote. Please share an example of a live app you have deployed.