unified code verification service

frontend/pshared/lib/models/auth/pending_login.dart

@@ -9,19 +9,22 @@ class PendingLogin {
   final Account account;
   final TokenData pendingToken;
   final String destination;
-  final int ttlSeconds;
   final SessionIdentifier session;
+
+  final int? ttlSeconds;
   final int? cooldownSeconds;
   final DateTime? cooldownUntil;
+  final String? idempotencyKey;
 
   const PendingLogin({
     required this.account,
     required this.pendingToken,
     required this.destination,
-    required this.ttlSeconds,
+    this.ttlSeconds,
     required this.session,
     this.cooldownSeconds,
     this.cooldownUntil,
+    this.idempotencyKey,
   });
 
   factory PendingLogin.fromResponse(
@@ -31,7 +34,6 @@ class PendingLogin {
     account: response.account.account.toDomain(),
     pendingToken: response.pendingToken,
     destination: response.destination,
-    ttlSeconds: response.ttlSeconds,
     session: session,
   );
 
@@ -44,15 +46,17 @@ class PendingLogin {
     int? cooldownSeconds,
     DateTime? cooldownUntil,
     bool clearCooldown = false,
+    String? idempotencyKey,
   }) {
     return PendingLogin(
       account: account ?? this.account,
       pendingToken: pendingToken ?? this.pendingToken,
       destination: destination ?? this.destination,
-      ttlSeconds: ttlSeconds ?? this.ttlSeconds,
+      ttlSeconds: ttlSeconds ?? this.cooldownSeconds,
       session: session ?? this.session,
       cooldownSeconds: clearCooldown ? null : cooldownSeconds ?? this.cooldownSeconds,
       cooldownUntil: clearCooldown ? null : cooldownUntil ?? this.cooldownUntil,
+      idempotencyKey: idempotencyKey ?? this.idempotencyKey,
     );
   }