1：1

internal/handler/widget/widget_handler.go

@@ -1245,6 +1245,7 @@ func widgetAttachmentPayloads(attachments []model.Attachment) []gin.H {
 		payload = append(payload, gin.H{
 			"id":         attachment.ID,
 			"message_id": attachment.MessageID,
+			"account_id": attachment.AccountID,
 			"thumb_url":  attachment.ThumbURL,
 			"data_url":   attachment.FileURL,
 			"file_size":  attachment.FileSize,
@@ -1252,7 +1253,6 @@ func widgetAttachmentPayloads(attachments []model.Attachment) []gin.H {
 			"extension":  strings.TrimPrefix(strings.ToLower(attachmentExtension(attachment.FileName)), "."),
 			"width":      attachment.Width,
 			"height":     attachment.Height,
-			"created_at": attachment.CreatedAt.Unix(),
 		})
 	}
 	return payload