feat: TTS文本清理，过滤Markdown特殊字符和表情

www/app.js

@@ -4790,6 +4790,66 @@ function renderMessages() {
 
 // ==================== TTS 队列播放 ====================
 
+// 清理 TTS 文本（过滤Markdown特殊字符和表情）
+function cleanTTSText(text) {
+  if (!text) return '';
+  
+  let cleaned = text;
+  
+  // 移除代码块（```code```）
+  cleaned = cleaned.replace(/```[\s\S]*?```/g, '');
+  
+  // 移除行内代码（`code`）
+  cleaned = cleaned.replace(/`[^`]+`/g, '');
+  
+  // 移除标题符号（#、##、###等）
+  cleaned = cleaned.replace(/^#{1,6}\s*/gm, '');
+  
+  // 移除列表符号（-、*、+）
+  cleaned = cleaned.replace(/^[\-\*\+]\s+/gm, '');
+  
+  // 移除数字列表（1.、2.等）
+  cleaned = cleaned.replace(/^\d+\.\s+/gm, '');
+  
+  // 处理链接 [text](url) -> 只保留text
+  cleaned = cleaned.replace(/\[([^\]]+)\]\([^)]+\)/g, '$1');
+  
+  // 移除粗体/斜体符号（**text**、*text*、__text__、_text_）
+  cleaned = cleaned.replace(/\*\*([^*]+)\*\*/g, '$1');
+  cleaned = cleaned.replace(/\*([^*]+)\*/g, '$1');
+  cleaned = cleaned.replace(/__([^_]+)__/g, '$1');
+  cleaned = cleaned.replace(/_([^_]+)_/g, '$1');
+  
+  // 移除引用符号（>）
+  cleaned = cleaned.replace(/^>\s*/gm, '');
+  
+  // 移除分割线（---、***）
+  cleaned = cleaned.replace(/^[\-\*]{3,}$/gm, '');
+  
+  // 移除表情符号（常见emoji范围）
+  cleaned = cleaned.replace(/[\u{1F600}-\u{1F64F}]/gu, '');  // 表情
+  cleaned = cleaned.replace(/[\u{1F300}-\u{1F5FF}]/gu, '');  // 符号和图形
+  cleaned = cleaned.replace(/[\u{1F680}-\u{1F6FF}]/gu, '');  // 交通和地图
+  cleaned = cleaned.replace(/[\u{1F700}-\u{1F77F}]/gu, '');  // 占星术
+  cleaned = cleaned.replace(/[\u{1F780}-\u{1F7FF}]/gu, '');  // 几何图形
+  cleaned = cleaned.replace(/[\u{1F800}-\u{1F8FF}]/gu, '');  // 补充箭头
+  cleaned = cleaned.replace(/[\u{1F900}-\u{1F9FF}]/gu, '');  // 补充符号
+  cleaned = cleaned.replace(/[\u{1FA00}-\u{1FA6F}]/gu, '');  // 游戏符号
+  cleaned = cleaned.replace(/[\u{1FA70}-\u{1FAFF}]/gu, '');  // 补充符号B
+  cleaned = cleaned.replace(/[\u{2600}-\u{26FF}]/gu, '');    // 杂项符号
+  cleaned = cleaned.replace(/[\u{2700}-\u{27BF}]/gu, '');    // 装饰符号
+  cleaned = cleaned.replace(/[\u{FE00}-\u{FE0F}]/gu, '');    // 变体选择符
+  cleaned = cleaned.replace(/[\u{1F1E0}-\u{1F1FF}]/gu, '');  // 旗帜
+  
+  // 移除HTML实体
+  cleaned = cleaned.replace(/&[a-zA-Z]+;/g, '');
+  
+  // 清理多余空白
+  cleaned = cleaned.replace(/\s+/g, ' ').trim();
+  
+  return cleaned;
+}
+
 // 添加文本到 TTS 队列
 async function addToTTSQueue(text) {
   if (!text || !enableTTS) return;
@@ -4812,7 +4872,10 @@ async function playTTSQueue() {
   isTTSPlaying = true;
   
   while (ttsQueue.length > 0 && enableTTS) {
-    const text = ttsQueue.shift();
+    const rawText = ttsQueue.shift();
+    const text = cleanTTSText(rawText);  // 清理文本
+    
+    if (!text) continue;  // 跳过空文本
     
     try {
       const response = await fetch('/api/tts', {
@@ -4866,7 +4929,13 @@ async function playTTS(index) {
   const msg = currentConversation.messages[index];
   if (!msg || msg.role !== 'assistant') return;
   
-  const text = msg.content;
+  const rawText = msg.content;
+  if (!rawText) {
+    showToast('没有可播放的内容');
+    return;
+  }
+  
+  const text = cleanTTSText(rawText);  // 清理文本
   if (!text) {
     showToast('没有可播放的内容');
     return;