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/model/financial.go

@@ -24,8 +24,6 @@ type CommissionWithdrawalRequest struct {
 	PaymentType      string         `gorm:"column:payment_type;type:varchar(20);default:'manual';comment:放款类型（manual=人工打款）" json:"payment_type"`
 	AccountInfo      datatypes.JSON `gorm:"column:account_info;type:jsonb;comment:收款账户信息(姓名、账号等)" json:"account_info"`
 	Status           int            `gorm:"column:status;type:int;default:1;comment:状态 1-待审核 2-已通过 3-已拒绝 4-已到账" json:"status"`
-	ApprovedBy       uint           `gorm:"column:approved_by;index;comment:审批人用户ID" json:"approved_by"`
-	ApprovedAt       *time.Time     `gorm:"column:approved_at;comment:审批时间" json:"approved_at"`
 	ProcessorID      uint           `gorm:"column:processor_id;index;comment:处理人ID" json:"processor_id"`
 	ProcessedAt      *time.Time     `gorm:"column:processed_at;comment:处理时间" json:"processed_at"`
 	PaidAt           *time.Time     `gorm:"column:paid_at;comment:到账时间" json:"paid_at"`