feat: 发送消息的处理

src/renderer/views/home/ChatBox.vue

@@ -45,7 +45,7 @@
                    shadow-[0_1px_0_rgba(0,0,0,0.03)]
                    p-[18px] mt-[8px] flex flex-col justify-between">
         <textarea rows="2" placeholder="给我发布或者布置任务" class="flex-1 resize-none outline-none text-sm"
-          v-model="inputMessage" @keyup.enter="sendMessageAction" />
+          v-model="inputMessage" @keydown.enter="handleKeydownEnter" />
 
         <div class="flex justify-between items-end">
           <button @click="addAttachmentAction()">
@@ -193,14 +193,27 @@ const sendMessageAction = () => {
     return;
   }
 
-  console.log("输入消息:", inputMessage.value);
+  const raw = inputMessage.value || '';
-  if (!inputMessage.value.trim()) return;
+  // 去除尾部多余的换行，保留中间换行（例如 Shift+Enter）
+  const sendText = raw.replace(/\n+$/, '');
+  console.log("输入消息:", sendText);
+  if (!sendText.trim()) return;
   // 重置消息状态，准备接收新的AI回复
   resetMessageState();
-  sendMessage(inputMessage.value);
+  sendMessage(sendText);
   setTimeoutScrollToBottom();
 };
 
+// 处理在 textarea 中按 Enter：Shift+Enter 保留换行，单按 Enter 发送并阻止默认换行行为
+const handleKeydownEnter = (e: KeyboardEvent) => {
+  if ((e as KeyboardEvent).shiftKey) {
+    // 允许插入换行
+    return;
+  }
+  e.preventDefault();
+  sendMessageAction();
+};
+
 // 停止发送消息事件
 const sendStopAction = () => {
   console.log("停止发送消息");