project-root/ ├── frontend/ # Next.js app │ ├── pages/ │ │ ├── index.js # Landing page / Dashboard │ │ ├── dashboard.js # User dashboard (file management, alerts, etc.) │ │ └── _app.js # App wrapper (Clerk integration) │ ├── components/ │ │ ├── FileUpload.js # Component for file uploads (PDFs, images, scans) │ │ ├── AirPollutionAlert.js # Displays pollution alerts │ │ ├── CoughCounter.js # Shows cough count (possibly live update) │ │ ├── SpO2Display.js # Displays SpO₂ data from Google Fit │ │ └── ChatbotReport.js # Chatbot interface for reports and chat interaction │ ├── utils/ │ │ └── api.js # Functions to call FastAPI endpoints │ ├── styles/ │ └── package.json │ ├── backend/ # FastAPI app │ ├── app/ │ │ ├── main.py # Entry point for FastAPI │ │ ├── models.py # (Optional) Pydantic models for data if needed │ │ ├── schemas.py # Request/response schemas │ │ ├── routes/ # API endpoints │ │ │ ├── files.py # Endpoints for file uploads & management │ │ │ ├── iot.py # Endpoints for Google Fit & cough counter │ │ │ └── chatbot.py # Endpoints for chat & report generation via Gemini │ │ ├── services/ # Business logic and integrations │ │ │ ├── mongo.py # MongoDB connection & file saving logic │ │ │ ├── external_api.py # Integration with external air pollution API │ │ │ ├── gemini.py # Gemini API integration for chat/report │ │ │ └── cough_counter.py # Logic for counting coughs from audio data │ │ └── utils/ │ │ └── config.py # Configuration (Mongo URI, DB name, etc.) │ ├── requirements.txt # Python dependencies │ └── Dockerfile # (Optional) For containerization │ └── README.md