增加发布协议确认配置

backend/internal/modules/listing/handler.go

@@ -577,6 +577,8 @@ func writeListingError(c *gin.Context, err error) {
 		response.BadRequest(c, "哈夫币数量不正确")
 	case errors.Is(err, ErrMissingScreenshot):
 		response.BadRequest(c, "请至少上传一张账号截图")
+	case errors.Is(err, ErrAgreementRequired):
+		response.BadRequest(c, "请先阅读并同意发布协议")
 	case errors.Is(err, ErrMissingUploaderName):
 		response.BadRequest(c, "上传人名称不能为空")
 	case errors.Is(err, ErrMissingUploadData):