feat:附件的时候,必须要有问题内容

src/views/components/AiChat.vue

@@ -462,7 +462,7 @@ const validateMessageParams = (type: MessageType, params: MessageParams): boolea
     case 'audio':
       return !!audioUrl;
     case 'attachment':
-      return attachments.value.length > 0;
+      return attachments.value.length > 0 && !!messageContent
     default:
       return false;
   }