добавил сохранение аккаунта в хранилище ОС

на Android это в EncryptedSharedPreferences
в яблочно подобных это Keychain
с виндой работает но я хз че там за хранилище
с линухом работает, но нужно поставить доп. пакеты

# Debian / Ubuntu
sudo apt install libsecret-1-dev
# Fedora / RHEL
sudo dnf install libsecret-devel
# Arch
sudo pacman -S libsecret

lib/backend/modules/account.dart

@@ -1,6 +1,7 @@
 import '../api.dart';
 import '../../core/protocol/opcode_map.dart';
 import '../../core/protocol/packet.dart';
+import '../../core/storage/token_storage.dart';
 import '../../core/utils/logger.dart';
 
 enum AuthRequestType {
@@ -86,7 +87,15 @@ class AccountModule {
       throw Exception('verifyCode: неожиданный тип payload: ${data.runtimeType}');
     }
 
-    return VerifyCodeResult(payload: data.cast<dynamic, dynamic>());
+    final result = VerifyCodeResult(payload: data.cast<dynamic, dynamic>());
+
+    final sessionToken = result.loginToken ?? result.registerToken;
+    if (sessionToken != null) {
+      await TokenStorage.save(sessionToken);
+      logger.i('Токен сохранён в хранилище');
+    }
+
+    return result;
   }
 
   Future<RequestCodeResult> _requestCodeInternal(

lib/core/storage/token_storage.dart

@@ -0,0 +1,16 @@
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+class TokenStorage {
+  static const _key = 'auth_token';
+
+  static const _storage = FlutterSecureStorage(
+    aOptions: AndroidOptions(encryptedSharedPreferences: true),
+  );
+
+  static Future<void> save(String token) =>
+      _storage.write(key: _key, value: token);
+
+  static Future<String?> read() => _storage.read(key: _key);
+
+  static Future<void> delete() => _storage.delete(key: _key);
+}

linux/CMakeLists.txt

@@ -53,6 +53,7 @@ add_subdirectory(${FLUTTER_MANAGED_DIR})
 # System-level dependencies.
 find_package(PkgConfig REQUIRED)
 pkg_check_modules(GTK REQUIRED IMPORTED_TARGET gtk+-3.0)
+pkg_check_modules(SECRET REQUIRED IMPORTED_TARGET libsecret-1)
 
 # Application build; see runner/CMakeLists.txt.
 add_subdirectory("runner")

pubspec.lock

@@ -33,6 +33,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.2"
+  code_assets:
+    dependency: transitive
+    description:
+      name: code_assets
+      sha256: "83ccdaa064c980b5596c35dd64a8d3ecc68620174ab9b90b6343b753aa721687"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   collection:
     dependency: transitive
     description:
@@ -41,6 +49,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.19.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -118,6 +134,54 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.0.0"
+  flutter_secure_storage:
+    dependency: "direct main"
+    description:
+      name: flutter_secure_storage
+      sha256: da922f2aab2d733db7e011a6bcc4a825b844892d4edd6df83ff156b09a9b2e40
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.0.0"
+  flutter_secure_storage_darwin:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_darwin
+      sha256: "8878c25136a79def1668c75985e8e193d9d7d095453ec28730da0315dc69aee3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.0"
+  flutter_secure_storage_linux:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_linux
+      sha256: "2b5c76dce569ab752d55a1cee6a2242bcc11fdba927078fb88c503f150767cda"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
+  flutter_secure_storage_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_platform_interface
+      sha256: "8ceea1223bee3c6ac1a22dabd8feefc550e4729b3675de4b5900f55afcb435d6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
+  flutter_secure_storage_web:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_web
+      sha256: "6a1137df62b84b54261dca582c1c09ea72f4f9a4b2fcee21b025964132d5d0c3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
+  flutter_secure_storage_windows:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_windows
+      sha256: "3b7c8e068875dfd46719ff57c90d8c459c87f2302ed6b00ff006b3c9fcad1613"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -136,6 +200,22 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      sha256: c3f1ee72c96f8f78935e18aa8cecced9ab132419e8625dc187e1c2408efc20de
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.3"
+  hooks:
+    dependency: transitive
+    description:
+      name: hooks
+      sha256: e79ed1e8e1929bc6ecb6ec85f0cb519c887aa5b423705ded0d0f2d9226def388
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
   http:
     dependency: transitive
     description:
@@ -192,6 +272,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.6.2"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
   matcher:
     dependency: transitive
     description:
@@ -224,6 +312,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.1"
+  native_toolchain_c:
+    dependency: transitive
+    description:
+      name: native_toolchain_c
+      sha256: "6ba77bb18063eebe9de401f5e6437e95e1438af0a87a3a39084fbd37c90df572"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.17.6"
+  objective_c:
+    dependency: transitive
+    description:
+      name: objective_c
+      sha256: "100a1c87616ab6ed41ec263b083c0ef3261ee6cd1dc3b0f35f8ddfa4f996fe52"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.3.0"
   path:
     dependency: transitive
     description:
@@ -232,6 +336,62 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  path_provider:
+    dependency: transitive
+    description:
+      name: path_provider
+      sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: "149441ca6e4f38193b2e004c0ca6376a3d11f51fa5a77552d8bd4d2b0c0912ba"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.23"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "2a376b7d6392d80cd3705782d2caa734ca4727776db0b6ec36ef3f1855197699"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.0"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: f7a1fe3a634fe7734c8d3f2766ad746ae2a2884abe22e241a8b301bf5cac3279
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "88f5779f72ba699763fa3a3b06aa4bf6de76c8e5de842cf6f29e2e06476c2334"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: bd6f00dbd873bfb70d0761682da2b3a2c2fccc2b9e84c495821639601d81afe7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "5d6b1b0036a5f331ebc77c850ebc8506cbc1e9416c27e59b439f917a902a4984"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
   plugin_platform_interface:
     dependency: transitive
     description:
@@ -240,6 +400,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.8"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -349,6 +517,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.0"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "7a3f37b05d989967cdddcbb571f1ea834867ae2faa29725fd085180e0883aa15"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.3"
 sdks:
   dart: ">=3.10.4 <4.0.0"
-  flutter: ">=3.29.0"
+  flutter: ">=3.38.4"

pubspec.yaml

@@ -40,6 +40,7 @@ dependencies:
   device_info_plus: ^12.3.0
   flutter_timezone: ^5.0.1
   timezone: ^0.11.0
+  flutter_secure_storage: ^10.0.0
 
 dev_dependencies:
   flutter_test: