# Data Model: Project Launch Script

## Entities

N/A - This feature is a utility script and does not involve persistent data storage or complex data structures.

## Process State

The script manages the lifecycle of two primary processes:

1.  **Backend Process**:
    - Command: `python3 -m uvicorn src.app:app`
    - Port: 8000 (default)
    - Environment: Python Virtual Environment (`.venv`)

2.  **Frontend Process**:
    - Command: `npm run dev`
    - Port: 5173 (default)
    - Environment: Node.js / `node_modules`

## Validation Rules

- `python3` must be version 3.9 or higher.
- `npm` must be available.
- `backend/requirements.txt` must exist.
- `frontend/package.json` must exist.