Revert "feat(loyalty): EnakPoint & EnakCoin" (#32)

This reverts merge commit 645da30, returning main to f0ff59f.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/transformer/order_transformer.go

@@ -161,8 +161,6 @@ func OrderModelToContract(resp *models.OrderResponse) *contract.OrderResponse {
 		TotalPaid:       resp.TotalPaid,
 		PaymentCount:    resp.PaymentCount,
 		SplitType:       resp.SplitType,
-		PointsEarned:    resp.PointsEarned,
-		CoinsEarned:     resp.CoinsEarned,
 	}
 }
 
@@ -324,8 +322,6 @@ func CreatePaymentContractToModel(req *contract.CreatePaymentRequest) *models.Cr
 	return &models.CreatePaymentRequest{
 		OrderID:           req.OrderID,
 		PaymentMethodID:   req.PaymentMethodID,
-		Points:            req.Points,
-		PaymentCode:       req.PaymentCode,
 		Amount:            req.Amount,
 		TransactionID:     req.TransactionID,
 		SplitNumber:       req.SplitNumber,
@@ -367,8 +363,6 @@ func PaymentModelToContract(resp *models.PaymentResponse) *contract.PaymentRespo
 		SplitType:         resp.SplitType,
 		SplitDescription:  resp.SplitDescription,
 		RefundAmount:      resp.RefundAmount,
-		PointsUsed:        resp.PointsUsed,
-		PointValue:        resp.PointValue,
 		RefundReason:      resp.RefundReason,
 		RefundedAt:        resp.RefundedAt,
 		RefundedBy:        resp.RefundedBy,