接入分销订单支付退款与站点隔离

backend/internal/modules/order/dto.go

@@ -142,7 +142,8 @@ type ActiveDisputeDTO struct {
 }
 
 type CreateRequest struct {
-	ListingID uint64 `json:"listing_id" binding:"required"`
+	ListingID            uint64 `json:"listing_id" binding:"required"`
+	DistributionSiteCode string `json:"distribution_site_code" binding:"omitempty,max=64"`
 }
 
 type SubmitHandoffRequest struct {

backend/internal/modules/order/lifecycle.go

@@ -7,6 +7,7 @@ import (
 
 	"hfb_sys/backend/internal/model"
 	"hfb_sys/backend/internal/modules/chat"
+	"hfb_sys/backend/internal/modules/distribution"
 	"hfb_sys/backend/internal/modules/notification"
 	"hfb_sys/backend/internal/modules/rentergrowth"
 
@@ -50,6 +51,10 @@ func (r *Repository) Create(ctx context.Context, renterID uint64, req CreateRequ
 		}
 		rentHours := estimateOrderDurationHours(snapshot)
 		pricing := buildOrderPricing(listing, account)
+		distributionSite, distributionRule, err := distribution.ResolveOrderSourceTx(tx, req.DistributionSiteCode, listing.ID, account.ID, time.Now())
+		if err != nil {
+			return err
+		}
 		rentOriginalAmountCent := pricing.RentAmountCent
 		growthSnapshot, err := rentergrowth.SnapshotForUser(tx, renterID)
 		if err != nil {
@@ -97,6 +102,11 @@ func (r *Repository) Create(ctx context.Context, renterID uint64, req CreateRequ
 			SettlementStatus:            settlementStatusUnsettled,
 			OfflineSettlementStatus:     offlineSettlementStatusNone,
 		}
+		if distributionSite != nil && distributionRule != nil {
+			order.DistributionSiteID = &distributionSite.ID
+			order.DistributionMode = distributionRule.Mode
+			order.DistributionRuleVersionID = &distributionRule.ID
+		}
 		if err := tx.Create(&order).Error; err != nil {
 			return err
 		}