Product Catalog

class Product(CremeEntity):
    """
    Product entity for catalog management.

    Attributes:
    - name: str, product name
    - code: str, product code/SKU
    - description: TextField, product description
    - unit_price: DecimalField, base price
    - category: ForeignKey, product category
    """

class Service(CremeEntity):
    """
    Service entity for service catalog.

    Attributes:
    - name: str, service name
    - description: TextField, service description
    - unit_price: DecimalField, service price
    """