Function getStorage

js/utils/storage.js:14–22

(key, defaultValue = null)

 * @returns {*} 存储的值或默认值
 */
export function getStorage(key, defaultValue = null) {
  try {
    const item = localStorage.getItem(key);
    return item !== null ? item : defaultValue;
  } catch (error) {
    console.error(`Failed to read from storage (${key}):`, error);
    return defaultValue;
  }
}

/**
 * 从 localStorage 读取 JSON 数据