ledger account describibale support

frontend/pshared/lib/api/requests/signup.dart

@@ -12,14 +12,18 @@ part 'signup.g.dart';
 class SignupRequest {
   final AccountData account;
   final DescribableDTO organization;
-  final String organizationTimeZone;
   final DescribableDTO ownerRole;
+  final DescribableDTO cryptoWallet;
+  final DescribableDTO ledgerWallet;
+  final String organizationTimeZone;
 
   const SignupRequest({
     required this.account,
     required this.organization,
     required this.organizationTimeZone,
     required this.ownerRole,
+    required this.cryptoWallet,
+    required this.ledgerWallet,
   });
 
   factory SignupRequest.build({
@@ -27,11 +31,15 @@ class SignupRequest {
     required Describable organization,
     required String organizationTimeZone,
     required Describable ownerRole,
+    required Describable cryptoWallet,
+    required Describable ledgerWallet,
   }) => SignupRequest(
     account: account, 
     organization: organization.toDTO(), 
     organizationTimeZone: organizationTimeZone, 
     ownerRole: ownerRole.toDTO(),
+    cryptoWallet: cryptoWallet.toDTO(),
+    ledgerWallet: ledgerWallet.toDTO(),
   );
 
   factory SignupRequest.fromJson(Map<String, dynamic> json) => _$SignupRequestFromJson(json);