feat(设备绑定): 添加用户数据迁移功能以支持设备重新绑定

在设备重新绑定到新用户时，自动迁移旧用户的订单、订阅和余额数据
移除游客订单特殊处理逻辑，统一所有订单处理流程
更新设备绑定文档说明新的静默登录机制

internal/logic/public/order/closeOrderLogic.go

@@ -61,18 +61,7 @@ func (l *CloseOrderLogic) CloseOrder(req *types.CloseOrderRequest) error {
 			)
 			return err
 		}
-		// If User ID is 0, it means that the order is a guest order and does not need to be refunded, the order can be deleted directly
-		if orderInfo.UserId == 0 {
-			err = tx.Model(&order.Order{}).Where("order_no = ?", req.OrderNo).Delete(&order.Order{}).Error
-			if err != nil {
-				l.Errorw("[CloseOrder] Delete order failed",
-					logger.Field("error", err.Error()),
-					logger.Field("orderNo", req.OrderNo),
-				)
-				return err
-			}
-			return nil
-		}
+		// All orders now have associated users, no special handling needed for guest orders
 		// refund deduction amount to user deduction balance
 		if orderInfo.GiftAmount > 0 {
 			userInfo, err := l.svcCtx.UserModel.FindOne(l.ctx, orderInfo.UserId)