chore：H5和微信小程序都可以正常聊天

components/ai-chat-message/ai-chat-message.vue

@@ -810,65 +810,121 @@ export default {
     },
     
     // 发送流式消息
-    async sendStreamMessage(userMessage) {
-      // 创建流式消息对象
-      const streamMessage = {
-        id: ++this.messageId,
-        role: 'ai',
-        type: 'text',
-        content: '',
-        timestamp: Date.now(),
-        isStreaming: true
-      }
-      
-      // 移除加载状态，添加流式消息
-      this.messages = this.messages.filter(msg => msg.type !== 'loading')
-	  this.shouldScrollToBottom = true
-      this.messages.push(streamMessage)
-      
-     // 开始流式响应
-     await aiService.sendStreamMessage(
+ // 发送流式消息（自动适配 H5 / 微信小程序）
+ async sendStreamMessage(userMessage) {
+   // 创建流式消息对象
+   const streamMessage = {
+     id: ++this.messageId,
+     role: 'ai',
+     type: 'text',
+     content: '',
+     timestamp: Date.now(),
+     isStreaming: true
+   };
+ 
+   // 移除加载状态，添加流式消息
+   this.messages = this.messages.filter(msg => msg.type !== 'loading');
+   this.shouldScrollToBottom = true;
+   this.messages.push(streamMessage);
+ 
+   try {
+     // #ifdef H5
+     // ===== H5: 使用 POST + 流式 (fetch readable stream) =====
+     await aiService.sendHttpStream(
        userMessage,
-       // 流式数据回调
        (chunk) => {
-         streamMessage.content += chunk
-         this.$forceUpdate() // 或 this.$nextTick()
+         // 实时更新内容
+         streamMessage.content += chunk;
+         this.$forceUpdate(); // 强制更新视图
        },
-       // 完成回调：处理对象或字符串
        (completeResult) => {
+         // 流结束回调
          let finalContent = '';
          let convId = '';
-     
-         // 判断是对象还是字符串
+ 
          if (typeof completeResult === 'string') {
            finalContent = completeResult;
          } else {
            finalContent = completeResult.content || '';
-           convId = completeResult.conversation_id || ''; // 👈 关键：提取 conversation_id
+           convId = completeResult.conversation_id || '';
          }
-     
-         // 更新消息状态
+ 
+         // 更新最终内容
          streamMessage.isStreaming = false;
          streamMessage.content = finalContent;
-     
+ 
          // 添加操作按钮
          streamMessage.actions = [
            { id: 1, text: '有帮助', type: 'like' },
            { id: 2, text: '没帮助', type: 'dislike' }
          ];
-     
-         //  保存 conversation_id 到本地
+ 
+         // 保存会话 ID
          if (convId) {
+           this.currentConversationId = convId;
            aiService.setConversationId(convId);
+           this.saveConversationIdToLocal(convId);
          }
-     
+ 
          // 触发事件
          this.$emit('ai-response', streamMessage);
-		 this.saveConversationIdToLocal(convId);
-		 this.currentConversationId = convId;
        }
      );
-	 },
+     // #endif
+ 
+     // #ifdef MP-WEIXIN
+     // ===== 微信小程序: 使用 WebSocket =====
+     await aiService.sendStreamMessage(
+       userMessage,
+       (chunk) => {
+         // 实时更新内容
+         streamMessage.content += chunk;
+         this.$forceUpdate();
+       },
+       (completeResult) => {
+         // 流结束回调
+         let finalContent = completeResult?.content || '';
+         let convId = completeResult?.conversation_id || '';
+ 
+         // 更新最终内容
+         streamMessage.isStreaming = false;
+         streamMessage.content = finalContent;
+ 
+         // 添加操作按钮
+         streamMessage.actions = [
+           { id: 1, text: '有帮助', type: 'like' },
+           { id: 2, text: '没帮助', type: 'dislike' }
+         ];
+ 
+         // 保存会话 ID
+         if (convId) {
+           this.currentConversationId = convId;
+           aiService.setConversationId(convId);
+           this.saveConversationIdToLocal(convId);
+         }
+ 
+         // 触发事件
+         this.$emit('ai-response', streamMessage);
+       }
+     );
+     // #endif
+   } catch (error) {
+     console.error('流式请求失败:', error);
+     // 移除流式消息
+     this.messages = this.messages.filter(msg => msg.id !== streamMessage.id);
+     // 显示错误
+     const errorMsg = {
+       id: ++this.messageId,
+       role: 'ai',
+       type: 'text',
+       content: '抱歉，服务暂时不可用，请稍后重试。',
+       timestamp: Date.now(),
+       actions: [{ id: 1, text: '重试', type: 'retry' }]
+     };
+     this.messages.push(errorMsg);
+     this.$emit('ai-response', errorMsg);
+   }
+ },
     generateAIResponse(userMessage) {
       const responses = {
         '你好': '您好！我是AI智能客服，很高兴为您服务！有什么可以帮助您的吗？',