Sync upstream changes from NitishChoubey/MedGen.AI

[Copilot]

Pulls 19 commits from the upstream NitishChoubey/MedGen.AI repo into this fork, bringing in role-based auth, full doctor/patient dashboards, and Render deployment infrastructure.

New Features

• Role-based auth — signup flow extended to support DOCTOR and PATIENT roles
• Doctor portal — dashboard, pending reviews queue, approved patients list, per-patient review page, profile, settings, sidebar nav
• Patient portal — dashboard, analyses history, appointments, medical records, file upload, profile, settings
• Results detail page — new /results/[id] route for in-depth analysis view

API Routes Added

• POST /api/upload — file upload handling
• GET /api/doctor/pending-reviews, /doctor/approved, /doctor/stats
• PUT /api/doctor/review/[id] — doctor review submission
• GET/PUT /api/patient/profile, GET /api/patient/analyses

Schema & Dependencies

• Prisma schema extended with Doctor and Patient models
• package.json updated with new deps
• requirements.txt / requirements-render.txt refreshed for Python compatibility

Deployment

• render.yaml added at root and service levels
• runtime.txt pins Python version
• Build scripts updated; lazy-loads ML imports to prevent startup timeouts
• SQLite and network error fixes for Render environment

Original prompt

pull all new changes
https://github.com/NitishChoubey/MedGen.AI.git

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