sarvsolutions4u/almihad-crm-mern ? reverse-engineered prompt

Build me a CRM web app for a school or training center using MongoDB, Express, React, and Node, set up so it can run locally and also deploy on Vercel with MongoDB Atlas.

The first version should include a clean app shell, login, JWT based authentication, user roles, section based access, and basic user management. Make it so an admin can sign in with seeded demo users, manage accounts, and only see the parts of the app they’re allowed to use. Use a React frontend and an Express API, and make sure the API works in a serverless style for Vercel too.

Please also set it up in a way that makes it easy to add the next CRM sections later, like leads, admissions, dashboard, messaging, reports, accounts, teacher portal, and personal tools. Keep the code organized and practical, and if you need current docs for anything, look them up online.