feat：流式网络请求的处理

pages/chat/ChatMainList.vue

@@ -348,15 +348,17 @@
 	let typeWriterTimer = null;
 	let aiMsgBuffer = ''; // 全局缓冲区
 	let isTyping = false; // 是否正在打字
+	let currentMessageId = ''
 
 	/// 发送获取AI聊天消息
 	const sendChat = (message, isInstruct = false) => {
+		currentMessageId = 'mid' + new Date().getTime()
 		const args = {
 		    conversationId: conversationId.value,
 		    agentId: agentId.value,
 		    messageType: isInstruct ? 1 : 0,
 		    messageContent: isInstruct ? commonType : message,
-            messageId: 'mid' + new Date().getTime()
+            messageId: currentMessageId
 		}
 
 		// 插入AI消息