feat(03-02): Asset Service 接入 Gateway sync-info（DEVICE-04）

- Service 结构体新增 gatewayClient 字段，New() 追加 gatewayClient 参数
- Refresh device 分支在绑定卡刷新后调用 SyncDeviceInfo，nil guard + Warn 日志不阻断主流程
- 新增 updateDeviceFromSyncInfo 私有函数：更新 5 个 device 字段 + 调用 UpdateIsCurrentByDeviceID
- bootstrap/services.go asset.New() 调用追加 deps.GatewayClient
- go build ./... 零新增编译错误

internal/service/commission_withdrawal/service.go

@@ -206,8 +206,6 @@ func (s *Service) Approve(ctx context.Context, id uint, req *dto.ApproveWithdraw
 			"processed_at": now,
 			"payment_type": req.PaymentType,
 			"remark":       req.Remark,
-			"approved_by":  currentUserID,
-			"approved_at":  now,
 		}
 
 		if req.Amount != nil {