improved logging in callbacks

frontend/pshared/lib/api/requests/payment/initiate_payments.dart

@@ -3,18 +3,20 @@ import 'package:pshared/api/requests/payment/base.dart';
 
 part 'initiate_payments.g.dart';
 
-
 @JsonSerializable()
 class InitiatePaymentsRequest extends PaymentBaseRequest {
   final String quoteRef;
+  final String? clientPaymentRef;
 
   const InitiatePaymentsRequest({
     required super.idempotencyKey,
     super.metadata,
     required this.quoteRef,
+    this.clientPaymentRef,
   });
 
-  factory InitiatePaymentsRequest.fromJson(Map<String, dynamic> json) => _$InitiatePaymentsRequestFromJson(json);
+  factory InitiatePaymentsRequest.fromJson(Map<String, dynamic> json) =>
+      _$InitiatePaymentsRequestFromJson(json);
   @override
   Map<String, dynamic> toJson() => _$InitiatePaymentsRequestToJson(this);
 }