"""

This module defines the database entities used across the application for data storage and retrieval.

Purpose:
    - Provides structured definitions for database models.
    - Facilitates interaction with the database by mapping application data to database schemas.

Components:
    - DB Entities: Defines entities that represent database tables or collections, including fields and relationships.

Features:
    - Centralized entity definitions for consistent database operations.
    - Supports validation and serialization of database records.
    - Designed to integrate seamlessly with the database layer, ensuring reliable data handling.
"""
