backend/
├── app/
│ ├── main.py
│ ├── config.py
│ ├── database.py
│ ├── models/
│ │ ├── user.py
│ │ ├── client.py
│ │ ├── itr.py
│ │ └── document.py
│ ├── routers/
│ │ ├── auth.py
│ │ ├── clients.py
│ │ ├── reports.py
│ │ ├── whatsapp.py
│ │ └── uploads.py
│ ├── services/
│ │ ├── tax_engine.py
│ │ ├── pdf_generator.py
│ │ ├── ocr.py
│ │ └── ai.py
│ └── utils/
├── uploads/
├── reports/
├── requirements.txt
└── .env
POST /auth/register
POST /auth/login
GET /clients
POST /clients
PUT /clients/{id}
DELETE /clients/{id}
POST /upload/json
POST /upload/pan
POST /upload/aadhaar
POST /itr/calculate
POST /reports/computation
POST /reports/balance-sheet
POST /reports/pdf
POST /whatsapp/webhook
POST /whatsapp/send