增加零号主收入结算确认

backend/internal/modules/order/handler_error.go

@@ -44,6 +44,8 @@ func writeOrderError(c *gin.Context, err error) {
 		response.Error(c, http.StatusConflict, "checkout_cannot_submit", "当前订单不能发起结账")
 	case errors.Is(err, ErrCheckoutCannotConfirm):
 		response.Error(c, http.StatusConflict, "checkout_cannot_confirm", "当前结账不能确认")
+	case errors.Is(err, ErrZeroOwnerIncomeConfirmation):
+		response.Error(c, http.StatusConflict, "zero_owner_income_confirmation_required", "号主收入为 0，请确认后再结算")
 	case errors.Is(err, ErrCheckoutCannotCounter):
 		response.Error(c, http.StatusConflict, "checkout_cannot_counter", "当前结账不能修改")
 	case errors.Is(err, ErrCheckoutMaxRounds):