//! Domain Entities
//!
//! Core business entities and value objects that form the foundation
//! of the domain model.
//!
//! ## Modules
//!
//! - [`constants`] - Size and domain separator constants
//! - [`error`] - Error types for domain operations
//! - [`types`] - Core domain types (keys, memo data)

pub mod constants;
pub mod error;
pub mod types;
