# Data Models ## Database Schema The project uses PostgreSQL managed via SQLAlchemy. > **Note**: This is a high-level summary from a Quick Scan. Run a Deep Scan to generate full schema documentation. ## Tables Models are defined in `app/models.py`. Key entities likely include: - **Product** (or Item): The object being tracked. - **Price**: Historical price points. - **(Others pending deep scan)** ## Migrations Database schema changes are managed by Alembic. Migration scripts are located in `app/alembic/versions/`.