fix: 更新版本号到v3.15.2强制刷新浏览器缓存

Backend:
- 新增edge-tts依赖
- 新增/api/tts API生成语音
- 新增/api/tts/voices API获取语音列表
- 系统配置新增tts_provider和tts_voice字段

前端app.js:
- 新增TTS状态变量(enableTTS, ttsVoice, ttsQueue等)
- 智能体对话和普通对话header添加TTS开关按钮
- 消息操作栏添加语音播放按钮
- 实现playTTS和cleanTTS函数
- 加载后台TTS配置

前端admin.js:
- 系统设置页面添加TTS方案和语音配置
- 支持选择晓晓/云希/云扬/晓伊等中文语音

前端style.css:
- 新增.tts-btn样式

backend/app.py

@@ -4,13 +4,15 @@ AI Chat App - 后台管理服务
 端口: 19020 (与前端同一端口)
 """
 
-from flask import Flask, jsonify, request, send_from_directory
+from flask import Flask, jsonify, request, send_from_directory, Response
 from flask_cors import CORS
 import os
 import json
 import sqlite3
 from datetime import datetime
 import hashlib
+import asyncio
+import edge_tts
 
 app = Flask(__name__, static_folder='../www')
 CORS(app)
@@ -244,6 +246,8 @@ def init_db():
             ('guest_chat_messages', '20', '游客每日对话消息限制'),
             ('guest_agent_messages', '20', '游客每日智能体消息限制'),
             ('admin_password', 'admin123', '管理员密码'),
+            ('tts_provider', 'edge', 'TTS方案'),
+            ('tts_voice', 'zh-CN-XiaoxiaoNeural', 'TTS语音'),
         ]
         for key, value, desc in default_configs:
             cursor.execute('INSERT INTO system_configs (key, value, description) VALUES (?, ?, ?)', (key, value, desc))
@@ -955,7 +959,17 @@ def get_frontend_config():
     conn = get_db()
     cursor = conn.cursor()
     
-    # 获取默认LLM配置
+    # 获取默认对话配置
+    cursor.execute('SELECT * FROM chat_configs WHERE is_default=1 LIMIT 1')
+    chat_config = cursor.fetchone()
+    
+    # 根据对话配置的llm_config_id获取LLM配置（而不是默认LLM）
+    llm_config_id = chat_config['llm_config_id'] if chat_config else 1
+    cursor.execute('SELECT * FROM llm_configs WHERE id=? AND is_active=1', (llm_config_id,))
+    llm = cursor.fetchone()
+    
+    # 如果没找到，使用默认LLM
+    if not llm:
         cursor.execute('SELECT * FROM llm_configs WHERE is_default=1 AND is_active=1 LIMIT 1')
         llm = cursor.fetchone()
     
@@ -967,10 +981,6 @@ def get_frontend_config():
     cursor.execute('SELECT agent_id, name, avatar, category, description, system_prompt, heat, tags, enable_tools FROM agents WHERE is_online=1 AND is_active=1')
     agents = [dict(row) for row in cursor.fetchall()]
     
-    # 获取默认对话配置
-    cursor.execute('SELECT * FROM chat_configs WHERE is_default=1 LIMIT 1')
-    chat_config = cursor.fetchone()
-    
     # 获取系统配置
     cursor.execute('SELECT key, value FROM system_configs')
     system = {row['key']: row['value'] for row in cursor.fetchall()}
@@ -990,13 +1000,63 @@ def get_frontend_config():
                 'chatSessions': int(system.get('guest_chat_sessions', '1')),
                 'chatMessages': int(system.get('guest_chat_messages', '20')),
                 'agentMessages': int(system.get('guest_agent_messages', '20')),
-            }
+            },
+            'ttsProvider': system.get('tts_provider', 'edge'),
+            'ttsVoice': system.get('tts_voice', 'zh-CN-XiaoxiaoNeural'),
         }
     }
     
     return jsonify(config)
 
 
+# ==================== TTS 语音合成 ====================
+
+@app.route('/api/tts', methods=['POST'])
+def generate_tts():
+    """使用 Edge TTS 生成语音"""
+    data = request.json
+    text = data.get('text', '')
+    voice = data.get('voice', 'zh-CN-XiaoxiaoNeural')  # 默认中文女声
+    
+    if not text:
+        return jsonify({'error': '缺少文本内容'}), 400
+    
+    try:
+        # 使用 asyncio 运行 edge_tts
+        async def generate_audio():
+            communicate = edge_tts.Communicate(text, voice)
+            audio_data = b''
+            for chunk in communicate.stream_sync():
+                if chunk['type'] == 'audio':
+                    audio_data += chunk['data']
+            return audio_data
+        
+        audio_data = asyncio.run(generate_audio())
+        
+        # 返回音频数据（MP3格式）
+        return Response(audio_data, mimetype='audio/mpeg')
+    
+    except Exception as e:
+        return jsonify({'error': f'TTS生成失败: {str(e)}'}), 500
+
+
+@app.route('/api/tts/voices', methods=['GET'])
+def get_tts_voices():
+    """获取可用的 TTS 语音列表"""
+    try:
+        voices = asyncio.run(edge_tts.list_voices())
+        # 过滤中文语音
+        chinese_voices = [v for v in voices if v['Locale'].startswith('zh-')]
+        voice_list = [{
+            'name': v['ShortName'],
+            'gender': v['Gender'],
+            'locale': v['Locale']
+        } for v in chinese_voices]
+        return jsonify({'voices': voice_list})
+    except Exception as e:
+        return jsonify({'error': f'获取语音列表失败: {str(e)}'}), 500
+
+
 # ==================== 启动 ====================
 
 if __name__ == '__main__':

backend/requirements.txt

@@ -1,2 +1,3 @@
 flask>=2.0.0
 flask-cors>=3.0.0
+edge-tts>=6.0.0

www/admin.js

@@ -1264,6 +1264,25 @@ async function loadSystemPage(content) {
         <input type="text" class="form-input" id="adminPassword" value="${systemConfigs.admin_password?.value || ''}" placeholder="修改管理员密码">
       </div>
       
+      <h3 style="margin: 24px 0 16px; padding-top: 16px; border-top: 1px solid #e2e8f0;">TTS语音配置</h3>
+      
+      <div class="form-group">
+        <label class="form-label">TTS方案</label>
+        <select class="form-select" id="ttsProvider">
+          <option value="edge" ${systemConfigs.tts_provider?.value === 'edge' ? 'selected' : ''}>Edge TTS (微软)</option>
+        </select>
+      </div>
+      
+      <div class="form-group">
+        <label class="form-label">TTS语音</label>
+        <select class="form-select" id="ttsVoice">
+          <option value="zh-CN-XiaoxiaoNeural" ${systemConfigs.tts_voice?.value === 'zh-CN-XiaoxiaoNeural' ? 'selected' : ''}>晓晓 (女声)</option>
+          <option value="zh-CN-YunxiNeural" ${systemConfigs.tts_voice?.value === 'zh-CN-YunxiNeural' ? 'selected' : ''}>云希 (男声)</option>
+          <option value="zh-CN-YunyangNeural" ${systemConfigs.tts_voice?.value === 'zh-CN-YunyangNeural' ? 'selected' : ''}>云扬 (男声)</option>
+          <option value="zh-CN-XiaoyiNeural" ${systemConfigs.tts_voice?.value === 'zh-CN-XiaoyiNeural' ? 'selected' : ''}>晓伊 (女声)</option>
+        </select>
+      </div>
+      
       <button class="form-submit" onclick="saveSystemConfig()">保存设置</button>
     </div>
     
@@ -1282,7 +1301,9 @@ async function saveSystemConfig() {
     guest_chat_sessions: document.getElementById('guestChatSessions').value,
     guest_chat_messages: document.getElementById('guestChatMessages').value,
     guest_agent_messages: document.getElementById('guestAgentMessages').value,
-    admin_password: document.getElementById('adminPassword').value
+    admin_password: document.getElementById('adminPassword').value,
+    tts_provider: document.getElementById('ttsProvider').value,
+    tts_voice: document.getElementById('ttsVoice').value
   };
   
   await fetchAPI('/api/admin/system', 'POST', data);

www/app.js

@@ -123,6 +123,11 @@ async function loadBackendConfig() {
       console.log('LLM能力: 思考模式=', llmCapabilities.thinking, '视觉=', llmCapabilities.vision);
     }
     
+    // 加载 TTS 配置
+    if (backendConfig.system) {
+      ttsVoice = backendConfig.system.ttsVoice || 'zh-CN-XiaoxiaoNeural';
+    }
+    
     updateAgentsDisplay();
     console.log('后台配置已加载', backendConfig);
   } catch (e) {
@@ -296,6 +301,13 @@ let llmCapabilities = {
   vision: false     // 是否支持视觉能力
 };
 
+// TTS 语音播放状态
+let enableTTS = false;  // 是否启用语音播放（新建对话默认关闭）
+let currentPlayingAudio = null;  // 当前播放的音频对象
+let ttsVoice = 'zh-CN-XiaoxiaoNeural';  // TTS 语音
+let ttsQueue = [];  // TTS 待播放队列
+let isTTSPlaying = false;  // 是否正在播放队列
+
 // DOM 元素（初始为 null，在 openConversation 时重新获取）
 let appContainer = null;
 let messagesContainer = null;
@@ -521,8 +533,8 @@ function bindPageEvents() {
 // ==================== 对话页面 ====================
 
 function renderChatsPage() {
-  // 只显示没有智能体的普通对话
+  // 只显示没有智能体的普通对话，且必须有消息内容（空对话不显示）
-  const normalConversations = conversations.filter(conv => !conv.agentId);
+  const normalConversations = conversations.filter(conv => !conv.agentId && conv.messages && conv.messages.length > 0);
   
   return `
     <div class="chats-page">
@@ -2915,6 +2927,9 @@ function showAgentChatPage() {
             <p class="agent-desc-header">${currentAgent.desc}</p>
           </div>
         </div>
+        <button class="feature-btn tts-btn ${enableTTS ? 'active' : ''}" id="ttsBtn" title="语音播放">
+          <svg viewBox="0 0 24 24" width="20" height="20"><path fill="currentColor" d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02zM14 3.23v2.06c2.89.86 5 3.54 5 6.71s-2.11 5.85-5 6.71v2.06c4.01-.91 7-4.54 7-8.77s-2.99-7.86-7-8.77z"/></svg>
+        </button>
       </header>
       
       <div class="messages-container" id="messagesContainer">
@@ -3033,6 +3048,21 @@ function showAgentChatPage() {
     });
   }
   
+  // 绑定 TTS 开关按钮（智能体对话）
+  const ttsBtn = document.getElementById('ttsBtn');
+  if (ttsBtn) {
+    ttsBtn.addEventListener('click', () => {
+      enableTTS = !enableTTS;
+      ttsBtn.classList.toggle('active', enableTTS);
+      showToast(enableTTS ? '语音播放已开启' : '语音播放已关闭');
+      // 如果关闭，停止当前播放
+      if (!enableTTS && currentPlayingAudio) {
+        currentPlayingAudio.pause();
+        currentPlayingAudio = null;
+      }
+    });
+  }
+  
   // 绑定输入事件
   userInput.addEventListener('keydown', handleKeyDown);
   userInput.addEventListener('input', (e) => autoResize(e.target));
@@ -3194,8 +3224,8 @@ function searchConversations(keyword) {
   
   keyword = keyword.toLowerCase();
   
-  // 只搜索没有智能体的普通对话
+  // 只搜索没有智能体的普通对话，且必须有消息内容
-  const normalConversations = conversations.filter(conv => !conv.agentId);
+  const normalConversations = conversations.filter(conv => !conv.agentId && conv.messages && conv.messages.length > 0);
   
   // 搜索标题和消息内容
   const results = normalConversations.filter(conv => {
@@ -3380,8 +3410,8 @@ function openConversation(id) {
           <span class="logo">🤖</span>
           <h1>${escapeHtml(currentConversation.title)}</h1>
         </div>
-        <button class="clear-btn" id="clearBtn" title="清空对话">
+        <button class="feature-btn tts-btn ${enableTTS ? 'active' : ''}" id="ttsBtn" title="语音播放">
-          <svg viewBox="0 0 24 24" width="20" height="20"><path fill="currentColor" d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41z"/></svg>
+          <svg viewBox="0 0 24 24" width="20" height="20"><path fill="currentColor" d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02zM14 3.23v2.06c2.89.86 5 3.54 5 6.71s-2.11 5.85-5 6.71v2.06c4.01-.91 7-4.54 7-8.77s-2.99-7.86-7-8.77z"/></svg>
         </button>
       </header>
 
@@ -3496,6 +3526,21 @@ function openConversation(id) {
     });
   }
   
+  // 绑定 TTS 开关按钮（普通对话）
+  const ttsBtn = document.getElementById('ttsBtn');
+  if (ttsBtn) {
+    ttsBtn.addEventListener('click', () => {
+      enableTTS = !enableTTS;
+      ttsBtn.classList.toggle('active', enableTTS);
+      showToast(enableTTS ? '语音播放已开启' : '语音播放已关闭');
+      // 如果关闭，停止当前播放
+      if (!enableTTS && currentPlayingAudio) {
+        currentPlayingAudio.pause();
+        currentPlayingAudio = null;
+      }
+    });
+  }
+  
   // 绑定置顶置底按钮事件
   const scrollTopBtn = document.getElementById('scrollTopBtn');
   const scrollBottomBtn = document.getElementById('scrollBottomBtn');
@@ -4158,6 +4203,8 @@ function renderMessages() {
     
     const copyIcon = `<svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z"/></svg>`;
     
+    const playIcon = `<svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02zM14 3.23v2.06c2.89.86 5 3.54 5 6.71s-2.11 5.85-5 6.71v2.06c4.01-.91 7-4.54 7-8.77s-2.99-7.86-7-8.77z"/></svg>`;
+    
     const actions = isUser 
       ? `<div class="message-actions">
           <button class="action-btn copy-btn" data-index="${index}" title="复制">${copyIcon}</button>
@@ -4166,6 +4213,7 @@ function renderMessages() {
           </button>
         </div>`
       : `<div class="message-actions">
+          <button class="action-btn tts-btn" data-index="${index}" title="语音播放">${playIcon}</button>
           <button class="action-btn copy-btn" data-index="${index}" title="复制">${copyIcon}</button>
           <button class="action-btn regenerate-btn" data-index="${index}" title="重新生成">
             <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M17.65 6.35C16.2 4.9 14.21 4 12 4c-4.42 0-7.99 3.58-7.99 8s3.57 8 7.99 8c3.73 0 6.84-2.55 7.73-6h-2.08c-.82 2.33-3.04 4-5.65 4-3.31 0-6-2.69-6-6s2.69-6 6-6c1.66 0 3.14.69 4.22 1.78L13 11h7V4l-2.35 2.35z"/></svg>
@@ -4189,6 +4237,9 @@ function renderMessages() {
   }).join('');
 
   // 绑定消息操作按钮事件（事件委托）
+  messagesDiv.querySelectorAll('.tts-btn').forEach(btn => {
+    btn.addEventListener('click', () => playTTS(parseInt(btn.dataset.index)));
+  });
   messagesDiv.querySelectorAll('.copy-btn').forEach(btn => {
     btn.addEventListener('click', () => copyMessage(parseInt(btn.dataset.index)));
   });
@@ -4557,3 +4608,99 @@ async function streamGenerateWithFile(content, fileName) {
     renderMessages();
   }
 }
+
+// ==================== TTS 语音播放 ====================
+
+// TTS 手动播放（点击消息上的播放按钮）
+async function playTTS(index) {
+  if (!currentConversation || index < 0) return;
+  
+  const msg = currentConversation.messages[index];
+  if (!msg || msg.role !== 'assistant') return;
+  
+  const text = msg.content;
+  if (!text) {
+    showToast('没有可播放的内容');
+    return;
+  }
+  
+  // 如果正在播放，停止
+  if (currentPlayingAudio) {
+    currentPlayingAudio.pause();
+    currentPlayingAudio = null;
+    showToast('已停止播放');
+    return;
+  }
+  
+  try {
+    showToast('正在生成语音...');
+    
+    const response = await fetch('/api/tts', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ text: cleanTTS(text), voice: ttsVoice })
+    });
+    
+    if (!response.ok) {
+      const error = await response.json();
+      showToast(error.error || '语音生成失败');
+      return;
+    }
+    
+    const audioBlob = await response.blob();
+    const audioUrl = URL.createObjectURL(audioBlob);
+    
+    currentPlayingAudio = new Audio(audioUrl);
+    await currentPlayingAudio.play();
+    showToast('开始播放');
+    
+    currentPlayingAudio.onended = () => {
+      URL.revokeObjectURL(audioUrl);
+      currentPlayingAudio = null;
+    };
+    
+  } catch (e) {
+    console.error('TTS播放失败:', e);
+    showToast('语音播放失败');
+  }
+}
+
+// 清理TTS文本（过滤Markdown特殊字符）
+function cleanTTS(text) {
+  if (!text) return '';
+  
+  // 移除Markdown标题标记
+  text = text.replace(/^#{1,6}\s+/gm, '');
+  
+  // 移除粗体/斜体标记
+  text = text.replace(/\*{1,2}([^*]+)\*{1,2}/g, '$1');
+  text = text.replace(/_{1,2}([^_]+)_{1,2}/g, '$1');
+  
+  // 移除代码块
+  text = text.replace(/```[\s\S]*?```/g, '');
+  text = text.replace(/`([^`]+)`/g, '$1');
+  
+  // 移除链接，只保留文本
+  text = text.replace(/\[([^\]]+)\]\([^)]+\)/g, '$1');
+  
+  // 移除引用标记
+  text = text.replace(/^>\s+/gm, '');
+  
+  // 移除分割线
+  text = text.replace(/^[-*_]{3,}$/gm, '');
+  
+  // 移除列表标记
+  text = text.replace(/^[\s]*[-*+]\s+/gm, '');
+  text = text.replace(/^[\s]*\d+\.\s+/gm, '');
+  
+  // 移除表情符号（emoji）
+  text = text.replace(/[\u{1F600}-\u{1F64F}\u{1F300}-\u{1F5FF}\u{1F680}-\u{1F6FF}\u{1F1E0}-\u{1F1FF}\u{2600}-\u{26FF}\u{2700}-\u{27BF}]/gu, '');
+  
+  // 清理多余空白
+  text = text.replace(/\n{3,}/g, '\n\n');
+  text = text.trim();
+  
+  return text;
+}
+
+// ==================== 工具函数 ====================

www/index.html

@@ -8,12 +8,12 @@
   <meta http-equiv="Pragma" content="no-cache">
   <meta http-equiv="Expires" content="0">
   <title>AI助手</title>
-  <link rel="stylesheet" href="style.css?v=3.5.1">
+  <link rel="stylesheet" href="style.css?v=3.15.2">
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
   <div id="app"></div>
-  <script src="marked.min.js?v=3.5.1"></script>
+  <script src="marked.min.js?v=3.15.2"></script>
-  <script src="app.js?v=3.5.1"></script>
+  <script src="app.js?v=3.15.2"></script>
 </body>
 </html>

www/style.css

@@ -3058,3 +3058,25 @@ body {
 .stop-generate-btn svg {
   flex-shrink: 0;
 }
+/* TTS 语音播放按钮 */
+.tts-btn {
+  background: transparent;
+  border: none;
+  cursor: pointer;
+  padding: 8px;
+  border-radius: 50%;
+  transition: all 0.2s;
+}
+
+.tts-btn:hover {
+  background: rgba(102, 126, 234, 0.1);
+}
+
+.tts-btn.active {
+  background: var(--primary);
+  color: white;
+}
+
+.tts-btn svg {
+  display: block;
+}