saurabh-231/Medusa ? reverse-engineered prompt

Build me a doctor appointment booking app with separate experiences for patients, doctors, and admins.

Patients should be able to sign up, log in, browse doctors, see their available time slots, book appointments, and pay either online or offline. Doctors should be able to log in, manage their availability, and view their upcoming appointments. Admins should have a dashboard to manage users, doctors, and appointments, and keep everything organized.

Make the app feel clean and easy to use, with secure authentication and role based access so each user only sees what they should. I want the main flows to work smoothly, from booking to payment to appointment management.

If you need to, look up current docs online for anything important. Build the whole thing in a polished way so it feels like a real product, not just a demo.