添加订单押金暂扣与归还

backend/internal/modules/order/service.go

@@ -24,6 +24,9 @@ var (
 	ErrCheckoutCannotCounter   = errors.New("checkout cannot counter")
 	ErrInvalidCheckoutAmount   = errors.New("invalid checkout amount")
 	ErrPermissionDenied        = errors.New("permission denied")
+	ErrDepositCannotHold       = errors.New("deposit cannot hold")
+	ErrDepositNotHeld          = errors.New("deposit not held")
+	ErrDepositHoldAmountEmpty  = errors.New("deposit hold amount empty")
 )
 
 const internalOrderHours = 24
@@ -216,6 +219,26 @@ func (s *Service) AdminResetHandoff(ctx context.Context, adminID uint64, orderID
 	return s.repo.AdminResetHandoff(ctx, adminID, orderID, req, meta)
 }
 
+func (s *Service) AdminHoldDeposit(ctx context.Context, adminID uint64, orderID uint64, req AdminActionRequest, meta AuditMeta) error {
+	if s.repo == nil {
+		return ErrDependencyUnavailable
+	}
+	if orderID == 0 || req.Reason == "" {
+		return ErrDepositCannotHold
+	}
+	return s.repo.AdminHoldDeposit(ctx, adminID, orderID, req, meta)
+}
+
+func (s *Service) AdminReleaseDeposit(ctx context.Context, adminID uint64, orderID uint64, req AdminActionRequest, meta AuditMeta) error {
+	if s.repo == nil {
+		return ErrDependencyUnavailable
+	}
+	if orderID == 0 || req.Reason == "" {
+		return ErrDepositCannotHold
+	}
+	return s.repo.AdminReleaseDeposit(ctx, adminID, orderID, req, meta)
+}
+
 func (s *Service) AdminRefund(ctx context.Context, orderID uint64) (*RefundStatusDTO, error) {
 	if s.repo == nil {
 		return nil, ErrDependencyUnavailable