AnshuMisra111/outpatientAssistance ? reverse-engineered prompt

Build me a hospital outpatient assistance app with a JavaFX desktop front end and a Spring Boot backend that talks to MongoDB.

It should support different views for a user, doctor, receptionist, and administrator. A user should be able to log in, browse doctors or services, book an appointment, see a QR code for check in, report symptoms, and upload medical documents if needed. The doctor should be able to see the patient queue, review symptom history, and look at submitted documents. The receptionist should be able to manage the patient queue and generate QR codes. The administrator should be able to review doctor appointments and patient queues.

Please wire the frontend to the backend over REST, use a local MongoDB database, and make the whole flow work end to end with sensible screens, forms, and basic validation. If anything is unclear from the existing code or docs, check the current project setup and fill in the missing pieces so it runs cleanly.