feat(invitation): 新增返利统计汇总与时间筛选

backend/internal/modules/invitation/dto.go

@@ -98,8 +98,49 @@ type AdminRebateLedgerQuery struct {
 	InviterPhone       string  `form:"inviter_phone"`
 	InviteePhone       string  `form:"invitee_phone"`
 	TradeRole          string  `form:"trade_role"`
+	Source             string  `form:"source"`
+	StartDate          string  `form:"start_date"`
+	EndDate            string  `form:"end_date"`
 	DistributionSiteID *uint64 `form:"distribution_site_id"`
 	// InviterID / InviteeID 供用户管理「明细」按用户精确筛选。
 	InviterID uint64 `form:"inviter_id"`
 	InviteeID uint64 `form:"invitee_id"`
 }
+
+// AdminRebateSummaryDTO 返利统计页汇总数据，所有金额单位为分。
+type AdminRebateSummaryDTO struct {
+	TotalRebateCent  int64                    `json:"total_rebate_cent"`
+	LedgerCount      int64                    `json:"ledger_count"`
+	InviterCount     int64                    `json:"inviter_count"`
+	InviteeCount     int64                    `json:"invitee_count"`
+	AvgRebateCent    int64                    `json:"avg_rebate_cent"`
+	OrderRebateCent  int64                    `json:"order_rebate_cent"`
+	OrderCount       int64                    `json:"order_count"`
+	PickupRebateCent int64                    `json:"pickup_rebate_cent"`
+	PickupCount      int64                    `json:"pickup_count"`
+	BuyerRebateCent  int64                    `json:"buyer_rebate_cent"`
+	BuyerCount       int64                    `json:"buyer_count"`
+	SellerRebateCent int64                    `json:"seller_rebate_cent"`
+	SellerCount      int64                    `json:"seller_count"`
+	FirstMonthCent   int64                    `json:"first_month_cent"`
+	SecondMonthCent  int64                    `json:"second_month_cent"`
+	SubsequentCent   int64                    `json:"subsequent_cent"`
+	Daily            []AdminRebateDailyStat   `json:"daily"`
+	TopInviters      []AdminRebateInviterStat `json:"top_inviters"`
+}
+
+type AdminRebateDailyStat struct {
+	Date             string `json:"date"`
+	LedgerCount      int64  `json:"ledger_count"`
+	RebateAmountCent int64  `json:"rebate_amount_cent"`
+	OrderAmountCent  int64  `json:"order_amount_cent"`
+	PickupAmountCent int64  `json:"pickup_amount_cent"`
+}
+
+type AdminRebateInviterStat struct {
+	InviterID        uint64 `json:"inviter_id"`
+	InviterPhone     string `json:"inviter_phone"`
+	InviterNickname  string `json:"inviter_nickname"`
+	LedgerCount      int64  `json:"ledger_count"`
+	RebateAmountCent int64  `json:"rebate_amount_cent"`
+}