//! Overworld-specific UI logic
//!
//! Overworld 特定的 UI 逻辑
//!
//! This module contains UI systems that are specific to the Overworld state,
//! such as backpack menu handling.
//!
//! 此模块包含特定于 Overworld 状态的 UI 系统，例如背包菜单处理。
// Re-export commonly used types from core::ui for convenience if needed in the future
//
// 为方便起见，从 core::ui 重新导出常用类型（如果将来需要）