added comment for payment, changed intent and added amount ui in operations

frontend/pshared/lib/models/payment/execution_operation.dart

@@ -1,5 +1,6 @@
 import 'package:pshared/models/money.dart';
 
+
 class PaymentExecutionOperation {
   final String? stepRef;
   final String? operationRef;
@@ -7,7 +8,8 @@ class PaymentExecutionOperation {
   final String? code;
   final String? state;
   final String? label;
-  final PaymentExecutionOperationMoney? money;
+  final Money? amount;
+  final Money? convertedAmount;
   final String? failureCode;
   final String? failureReason;
   final DateTime? startedAt;
@@ -20,30 +22,11 @@ class PaymentExecutionOperation {
     required this.code,
     required this.state,
     required this.label,
-    required this.money,
+    required this.amount,
+    required this.convertedAmount,
     required this.failureCode,
     required this.failureReason,
     required this.startedAt,
     required this.completedAt,
   });
 }
-
-class PaymentExecutionOperationMoney {
-  final PaymentExecutionOperationMoneySnapshot? planned;
-  final PaymentExecutionOperationMoneySnapshot? executed;
-
-  const PaymentExecutionOperationMoney({
-    required this.planned,
-    required this.executed,
-  });
-}
-
-class PaymentExecutionOperationMoneySnapshot {
-  final Money? amount;
-  final Money? convertedAmount;
-
-  const PaymentExecutionOperationMoneySnapshot({
-    required this.amount,
-    required this.convertedAmount,
-  });
-}

frontend/pshared/lib/models/payment/operation.dart

@@ -1,6 +1,7 @@
 import 'package:pshared/models/payment/methods/type.dart';
 import 'package:pshared/models/payment/status.dart';
 
+
 class OperationItem {
   final OperationStatus status;
   final String? fileName;

frontend/pshared/lib/models/payment/payment.dart

@@ -7,6 +7,7 @@ import 'package:pshared/models/payment/state.dart';
 class Payment {
   final String? paymentRef;
   final String? state;
+  final String? comment;
   final PaymentEndpoint? source;
   final PaymentEndpoint? destination;
   final PaymentOrchestrationState orchestrationState;
@@ -20,6 +21,7 @@ class Payment {
   const Payment({
     required this.paymentRef,
     required this.state,
+    required this.comment,
     required this.source,
     required this.destination,
     required this.orchestrationState,