feat: 添加租户创建功能，支持设置管理员及有效期，新增订单统计接口

backend/app/http/super/dto/order.go

@@ -0,0 +1,17 @@
+package dto
+
+import "quyun/v2/pkg/consts"
+
+type OrderStatisticsRow struct {
+	Status            consts.OrderStatus `json:"status"`
+	StatusDescription string             `json:"status_description"`
+
+	Count         int64 `json:"count"`
+	AmountPaidSum int64 `json:"amount_paid_sum"`
+}
+
+type OrderStatisticsResponse struct {
+	TotalCount         int64 `json:"total_count"`
+	TotalAmountPaidSum int64 `json:"total_amount_paid_sum"`
+	ByStatus           []*OrderStatisticsRow `json:"by_status"`
+}