fee treatment added

frontend/pshared/lib/data/mapper/payment/enums.dart

@@ -5,6 +5,7 @@ import 'package:pshared/models/payment/kind.dart';
 import 'package:pshared/models/payment/type.dart';
 import 'package:pshared/models/payment/settlement_mode.dart';
 
+
 PaymentKind paymentKindFromValue(String? value) {
   switch (value) {
     case 'payout':

frontend/pshared/lib/data/mapper/payment/fees/treatment.dart

@@ -0,0 +1,26 @@
+import 'package:pshared/models/payment/fees/treatment.dart';
+
+
+FeeTreatment feeTreatmentFromValue(String? value) {
+  switch (value) {
+    case 'add_to_source':
+      return FeeTreatment.addToSource;
+    case 'deduct_from_destination':
+      return FeeTreatment.deductFromDestination;
+    case 'unspecified':
+      return FeeTreatment.unspecified;
+    default:
+      throw ArgumentError('Unknown FeeTreatment value: $value');
+  }
+}
+
+String feeTreatmentToValue(FeeTreatment value) {
+  switch (value) {
+    case FeeTreatment.addToSource:
+      return 'add_to_source';
+    case FeeTreatment.deductFromDestination:
+      return 'deduct_from_destination';
+    case FeeTreatment.unspecified:
+      return 'unspecified';
+  }
+}

frontend/pshared/lib/data/mapper/payment/intent/payment.dart

@@ -1,4 +1,5 @@
 import 'package:pshared/data/dto/payment/intent/payment.dart';
+import 'package:pshared/data/mapper/payment/fees/treatment.dart';
 import 'package:pshared/data/mapper/payment/payment.dart';
 import 'package:pshared/data/mapper/payment/enums.dart';
 import 'package:pshared/data/mapper/payment/intent/customer.dart';
@@ -18,6 +19,7 @@ extension PaymentIntentMapper on PaymentIntent {
     settlementCurrency: settlementCurrency,
     attributes: attributes,
     customer: customer?.toDTO(),
+    feeTreatment: feeTreatmentToValue(feeTreatment),
   );
 }
 
@@ -32,5 +34,6 @@ extension PaymentIntentDTOMapper on PaymentIntentDTO {
     settlementCurrency: settlementCurrency,
     attributes: attributes,
     customer: customer?.toDomain(),
+    feeTreatment: feeTreatmentFromValue(feeTreatment),
   );
 }