修复平台代管订单流程

backend/internal/modules/listing/dto.go

@@ -32,6 +32,9 @@ type ListingDTO struct {
 	InTransaction              bool           `json:"in_transaction"`
 	Status                     string         `json:"status"`
 	ReviewStatus               string         `json:"review_status"`
+	HandoffMode                string         `json:"handoff_mode"`
+	SettlementMode             string         `json:"settlement_mode"`
+	ManagedAdminID             *uint64        `json:"managed_admin_id,omitempty"`
 	ReviewReason               string         `json:"review_reason"`
 	PublishedAt                *time.Time     `json:"published_at"`
 	ListingGroupConversationID uint64         `json:"listing_group_conversation_id,omitempty"`

backend/internal/modules/listing/mutation.go

@@ -170,6 +170,9 @@ func (r *Repository) CreateFromExternalUpload(ctx context.Context, upload extern
 			DepositAmountCent: req.DepositAmountCent,
 			Status:            "draft",
 			ReviewStatus:      "pending",
+			HandoffMode:       "platform",
+			SettlementMode:    "platform_managed",
+			ManagedAdminID:    &admin.ID,
 		}
 		if err := tx.Create(&listing).Error; err != nil {
 			return err

backend/internal/modules/listing/presenter.go

@@ -127,6 +127,9 @@ func (row listingRow) toDTO() ListingDTO {
 		InTransaction:     row.InTransaction,
 		Status:            row.Status,
 		ReviewStatus:      reviewStatus,
+		HandoffMode:       row.HandoffMode,
+		SettlementMode:    row.SettlementMode,
+		ManagedAdminID:    row.ManagedAdminID,
 		ReviewReason:      reviewReason,
 		PublishedAt:       row.PublishedAt,
 		CreatedAt:         row.CreatedAt,
@@ -159,6 +162,9 @@ func toDTO(account model.GameAccount, listing model.RentalListing) *ListingDTO {
 		InTransaction:     listing.InTransaction,
 		Status:            listing.Status,
 		ReviewStatus:      reviewStatus,
+		HandoffMode:       listing.HandoffMode,
+		SettlementMode:    listing.SettlementMode,
+		ManagedAdminID:    listing.ManagedAdminID,
 		ReviewReason:      reviewReason,
 		PublishedAt:       listing.PublishedAt,
 		CreatedAt:         listing.CreatedAt,

backend/internal/modules/listing/review.go

@@ -63,6 +63,9 @@ func (r *Repository) TransferOwner(ctx context.Context, adminID uint64, listingI
 
 		beforeOwnerID := listing.OwnerID
 		listing.OwnerID = target.ID
+		listing.HandoffMode = "owner"
+		listing.SettlementMode = "owner_wallet"
+		listing.ManagedAdminID = nil
 		account.OwnerID = target.ID
 		if err := tx.Save(account).Error; err != nil {
 			return err