修复线下提号后商品仍显示在「已上架」的问题

创建提号时将 listing/account 置为 rented 并记录状态事件，与正常订单锁定一致；完成提号对齐 completed/offline；取消提号恢复上架。补充 migration 修复历史数据。

backend/internal/modules/pickup/repository.go

@@ -33,7 +33,8 @@ func NewRepository(db *gorm.DB) *Repository {
 }
 
 // Create 创建提号订单（状态：提号中）。
-// 锁定 listing.in_transaction，与正常订单互斥；不结算、不动钱包。
+// 与正常订单支付成功一致：listing 置 rented + in_transaction，从商品管理「已上架」中移出。
+// 不结算、不动钱包。
 func (r *Repository) Create(ctx context.Context, req CreateRequest, adminID uint64, meta auditlog.Meta) (*PickupDTO, error) {
 	if r == nil || r.db == nil {
 		return nil, ErrDependencyUnavailable
@@ -63,7 +64,7 @@ func (r *Repository) Create(ctx context.Context, req CreateRequest, adminID uint
 		}
 
 		var account model.GameAccount
-		if err := tx.First(&account, listing.AccountID).Error; err != nil {
+		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&account, listing.AccountID).Error; err != nil {
 			return err
 		}
 		priceSnapshot := buildPickupPriceSnapshot(listing, account)
@@ -98,10 +99,28 @@ func (r *Repository) Create(ctx context.Context, req CreateRequest, adminID uint
 		}
 		createdID = pickup.ID
 
+		// 锁定商品：status=rented，从「已上架」列表移除，进入「已锁定」
+		fromStatus := listing.Status
 		listing.InTransaction = true
+		listing.Status = "rented"
+		account.Status = "rented"
 		if err := tx.Save(&listing).Error; err != nil {
 			return err
 		}
+		if err := tx.Save(&account).Error; err != nil {
+			return err
+		}
+		if err := listingstatus.AppendTransition(
+			tx,
+			&listing,
+			fromStatus,
+			listingstatus.SourcePickup,
+			listingstatus.ActorAdmin,
+			adminID,
+			"管理员线下提号锁定",
+		); err != nil {
+			return err
+		}
 
 		bid := pickup.ID
 		if err := notification.Append(tx, notification.Entry{
@@ -164,7 +183,9 @@ func (r *Repository) Complete(ctx context.Context, pickupID uint64, req Complete
 			return err
 		}
 		var account model.GameAccount
-		_ = tx.First(&account, pickup.AccountID).Error
+		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&account, pickup.AccountID).Error; err != nil {
+			return err
+		}
 
 		now := time.Now()
 		pickup.SettleAmountCent = req.SettleAmountCent
@@ -178,20 +199,25 @@ func (r *Repository) Complete(ctx context.Context, pickupID uint64, req Complete
 			return err
 		}
 
-		// listing 置 completed：listingLockedForOwnerMutation 已拦截此状态再上架。
+		// listing 置 completed（售出终态，不可再上架），与正常订单 completeAssets 对齐。
 		fromStatus := listing.Status
-		listing.InTransaction = true
+		listing.InTransaction = false
 		listing.Status = "completed"
+		listing.PublishedAt = nil
+		account.Status = "offline"
 		if err := tx.Save(&listing).Error; err != nil {
 			return err
 		}
+		if err := tx.Save(&account).Error; err != nil {
+			return err
+		}
 		if err := listingstatus.AppendTransition(
 			tx,
 			&listing,
 			fromStatus,
 			listingstatus.SourcePickup,
 			listingstatus.ActorAdmin,
-			0,
+			adminID,
 			"管理员提号完成",
 		); err != nil {
 			return err
@@ -244,7 +270,7 @@ func (r *Repository) Complete(ctx context.Context, pickupID uint64, req Complete
 	return r.FindByID(ctx, pickupID)
 }
 
-// Cancel 取消提号：解锁 listing.in_transaction，账号恢复可租。
+// Cancel 取消提号：恢复 listing 为 published + 解锁 in_transaction，账号恢复可租。
 func (r *Repository) Cancel(ctx context.Context, pickupID uint64, reason string, adminID uint64, meta auditlog.Meta) error {
 	if r == nil || r.db == nil {
 		return ErrDependencyUnavailable
@@ -264,16 +290,38 @@ func (r *Repository) Cancel(ctx context.Context, pickupID uint64, reason string,
 		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&listing, pickup.ListingID).Error; err != nil {
 			return err
 		}
+		var account model.GameAccount
+		if err := tx.Clauses(clause.Locking{Strength: "UPDATE"}).First(&account, pickup.AccountID).Error; err != nil {
+			return err
+		}
 		now := time.Now()
 		pickup.Status = StatusCancelled
 		pickup.CancelledAt = &now
 		if err := tx.Save(&pickup).Error; err != nil {
 			return err
 		}
+		// 取消提号：恢复上架，重新出现在商品管理「已上架」
+		fromStatus := listing.Status
 		listing.InTransaction = false
+		listing.Status = "published"
+		account.Status = "published"
 		if err := tx.Save(&listing).Error; err != nil {
 			return err
 		}
+		if err := tx.Save(&account).Error; err != nil {
+			return err
+		}
+		if err := listingstatus.AppendTransition(
+			tx,
+			&listing,
+			fromStatus,
+			listingstatus.SourcePickup,
+			listingstatus.ActorAdmin,
+			adminID,
+			"取消提号恢复上架",
+		); err != nil {
+			return err
+		}
 		bid := pickup.ID
 		_ = notification.Append(tx, notification.Entry{
 			UserID:  pickup.OwnerID,