исправление отображения ощибок на экране ввода кода из смс

lib/backend/modules/account.dart

@@ -7,13 +7,6 @@ import '../../core/utils/logger.dart';
 import 'chats.dart';
 import 'contacts.dart';
 
-class ServerException implements Exception {
-  final String message;
-  const ServerException(this.message);
-  @override
-  String toString() => message;
-}
-
 enum AuthRequestType {
   startAuth('START_AUTH'),
   resend('RESEND'),
@@ -447,10 +440,7 @@ class AccountModule {
 
   void _checkPacketError(Packet packet, String method) {
     if (packet.isError) {
-      final errMsg = packet.payload is Map
-          ? (packet.payload as Map)['message'] ?? packet.payload.toString()
-          : packet.payload?.toString() ?? 'Неизвестная ошибка';
-      throw ServerException(errMsg.toString());
+      throw PacketError(messageFromErrorPayload(packet.payload));
     }
   }
 }

lib/core/protocol/packet.dart

@@ -52,6 +52,26 @@ class Packet {
       'Packet(ver=$api cmd=$cmd seq=$seq opcode=$opcode payload=$payload)';
 }
 
+class PacketError implements Exception {
+  final String message;
+  const PacketError(this.message);
+  @override
+  String toString() => message;
+}
+
+String messageFromErrorPayload(dynamic payload) {
+  if (payload is Map) {
+    for (final key in ['localizedMessage', 'message', 'title']) {
+      final v = payload[key];
+      if (v is String && v.trim().isNotEmpty) return v.trim();
+    }
+    return 'Неизвестная ошибка';
+  }
+  if (payload == null) return 'Неизвестная ошибка';
+  final s = payload.toString();
+  return s.isNotEmpty ? s : 'Неизвестная ошибка';
+}
+
 /// Упаковка пакета для отправки на сервер
 Uint8List packPacket(int opcode, Map<dynamic, dynamic> payload, {int seq = 0}) {
   final header = ByteData(headerSize);

lib/core/transport/dispatcher.dart

@@ -68,7 +68,9 @@ class PacketDispatcher {
       }
 
       if (packet.isError) {
-        completer.completeError(packet);
+        completer.completeError(
+          PacketError(messageFromErrorPayload(packet.payload)),
+        );
       } else {
         completer.complete(packet);
       }

lib/frontend/screens/auth/code_confirmation_screen.dart

@@ -306,8 +306,9 @@ class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
                             _errorMessage!,
                             style: TextStyle(
                               color: cs.error,
-                              fontSize: 13,
-                              fontWeight: FontWeight.w400,
+                              fontSize: 14,
+                              fontWeight: FontWeight.w500,
+                              height: 1.35,
                             ),
                           ),
                         ),