create order with payment

lib/domain/order/entities/payment_request_entity.dart

@@ -0,0 +1,37 @@
+part of '../order.dart';
+
+@freezed
+class PaymentRequest with _$PaymentRequest {
+  const factory PaymentRequest({
+    required String orderId,
+    required String paymentMethodId,
+    required int amount,
+    required String transactionId,
+    required int splitNumber,
+    required int splitTotal,
+    required String splitDescription,
+    required List<PaymentItemRequest> paymentOrderItems,
+  }) = _PaymentRequest;
+
+  factory PaymentRequest.empty() => const PaymentRequest(
+    orderId: '',
+    paymentMethodId: '',
+    amount: 0,
+    transactionId: '',
+    splitNumber: 0,
+    splitTotal: 0,
+    splitDescription: '',
+    paymentOrderItems: [],
+  );
+}
+
+@freezed
+class PaymentItemRequest with _$PaymentItemRequest {
+  const factory PaymentItemRequest({
+    required String orderItemId,
+    required int amount,
+  }) = _PaymentItemRequest;
+
+  factory PaymentItemRequest.empty() =>
+      const PaymentItemRequest(orderItemId: '', amount: 0);
+}