/**
 * 转义 HTML 特殊字符
 */
export const escapeHtml = (str: string): string => {
  const escapeMap: Record<string, string> = {
    "&": "&amp;",
    "<": "&lt;",
    ">": "&gt;",
    '"': "&quot;",
    "'": "&#39;",
  };
  return str.replace(/[&<>"']/g, (char) => escapeMap[char]);
};