修复 无法清除消息的问题

src/pages/chats/[id]/index.vue

@@ -241,6 +241,7 @@ function streamChat(streamId: String) {
 
 const getMessages = () => {
   api.ChatMessage.apiV1ChatsIdMessagesGet(chatId).then((res) => {
+    messages.value.data = [];
     res.data.data?.forEach((message: any) => {
       if (message.role === "assistant" || message.role === "user") {
         messages.value.data?.push(message);

src/pages/public_chat/index.vue

@@ -270,6 +270,7 @@ const getMessages = () => {
     publicChatInfo.value.assistant_token,
     publicChatInfo.value.guest_id,
   ).then((res) => {
+    messages.value.data = [];
     res.data.data?.forEach((message: any) => {
       if (message.role === "assistant" || message.role === "user") {
         messages.value.data?.push(message);