Приложение на флаторе, настройки

client-mobile/lib/features/auth/data/datasources/auth_local_datasource.dart

@@ -0,0 +1,8 @@
+abstract class AuthLocalDataSource {
+  Future<String?> getToken();
+  Future<void> saveToken(String token);
+  Future<void> removeToken();
+  Future<String?> getUserId();
+  Future<void> saveUserId(String userId);
+  Future<void> removeUserId();
+}

client-mobile/lib/features/auth/data/datasources/auth_remote_datasource.dart

@@ -0,0 +1,10 @@
+import '../../../../core/errors/result.dart';
+import '../../domain/entities/user.dart';
+
+abstract class AuthRemoteDataSource {
+  Future<Result<User>> login(String email, String password);
+  Future<Result<User>> register(String email, String password, String name);
+  Future<Result<void>> logout();
+  Future<Result<User>> getCurrentUser();
+  Future<Result<void>> refreshToken();
+}

client-mobile/lib/features/auth/data/repositories/auth_repository_impl.dart

@@ -0,0 +1,47 @@
+import '../../../../core/errors/errors.dart';
+import '../../../../core/errors/result.dart';
+import '../../domain/entities/user.dart';
+import '../../domain/repositories/auth_repository.dart';
+
+class AuthRepositoryImpl implements AuthRepository {
+  @override
+  bool get isLoggedIn => false;
+
+  @override
+  Future<Result<User>> getCurrentUser() async {
+    return const Result.failure(AppError.unauthorized(message: 'Not logged in'));
+  }
+
+  @override
+  Future<Result<User>> login(String email, String password) async {
+    // TODO: Implement real login
+    return Result.success(
+      User(
+        id: '1',
+        email: email,
+        name: 'Test User',
+      ),
+    );
+  }
+
+  @override
+  Future<Result<void>> logout() async {
+    return const Result.success(null);
+  }
+
+  @override
+  Future<Result<User>> register(String email, String password, String name) async {
+    return Result.success(
+      User(
+        id: '1',
+        email: email,
+        name: name,
+      ),
+    );
+  }
+
+  @override
+  Future<Result<void>> refreshToken() async {
+    return const Result.success(null);
+  }
+}

client-mobile/lib/features/auth/domain/entities/user.dart

@@ -0,0 +1,19 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'user.freezed.dart';
+// part 'user.g.dart';
+
+@freezed
+class User with _$User {
+  const factory User({
+    required String id,
+    required String email,
+    required String name,
+    String? avatarUrl,
+    String? phoneNumber,
+    DateTime? lastSeen,
+    bool? isOnline,
+  }) = _User;
+
+  // factory User.fromJson(Map<String, dynamic> json) => _$UserFromJson(json);
+}

client-mobile/lib/features/auth/domain/entities/user.freezed.dart

@@ -0,0 +1,257 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'user.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$User {
+  String get id => throw _privateConstructorUsedError;
+  String get email => throw _privateConstructorUsedError;
+  String get name => throw _privateConstructorUsedError;
+  String? get avatarUrl => throw _privateConstructorUsedError;
+  String? get phoneNumber => throw _privateConstructorUsedError;
+  DateTime? get lastSeen => throw _privateConstructorUsedError;
+  bool? get isOnline => throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $UserCopyWith<User> get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $UserCopyWith<$Res> {
+  factory $UserCopyWith(User value, $Res Function(User) then) =
+      _$UserCopyWithImpl<$Res, User>;
+  @useResult
+  $Res call(
+      {String id,
+      String email,
+      String name,
+      String? avatarUrl,
+      String? phoneNumber,
+      DateTime? lastSeen,
+      bool? isOnline});
+}
+
+/// @nodoc
+class _$UserCopyWithImpl<$Res, $Val extends User>
+    implements $UserCopyWith<$Res> {
+  _$UserCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? email = null,
+    Object? name = null,
+    Object? avatarUrl = freezed,
+    Object? phoneNumber = freezed,
+    Object? lastSeen = freezed,
+    Object? isOnline = freezed,
+  }) {
+    return _then(_value.copyWith(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      email: null == email
+          ? _value.email
+          : email // ignore: cast_nullable_to_non_nullable
+              as String,
+      name: null == name
+          ? _value.name
+          : name // ignore: cast_nullable_to_non_nullable
+              as String,
+      avatarUrl: freezed == avatarUrl
+          ? _value.avatarUrl
+          : avatarUrl // ignore: cast_nullable_to_non_nullable
+              as String?,
+      phoneNumber: freezed == phoneNumber
+          ? _value.phoneNumber
+          : phoneNumber // ignore: cast_nullable_to_non_nullable
+              as String?,
+      lastSeen: freezed == lastSeen
+          ? _value.lastSeen
+          : lastSeen // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      isOnline: freezed == isOnline
+          ? _value.isOnline
+          : isOnline // ignore: cast_nullable_to_non_nullable
+              as bool?,
+    ) as $Val);
+  }
+}
+
+/// @nodoc
+abstract class _$$UserImplCopyWith<$Res> implements $UserCopyWith<$Res> {
+  factory _$$UserImplCopyWith(
+          _$UserImpl value, $Res Function(_$UserImpl) then) =
+      __$$UserImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {String id,
+      String email,
+      String name,
+      String? avatarUrl,
+      String? phoneNumber,
+      DateTime? lastSeen,
+      bool? isOnline});
+}
+
+/// @nodoc
+class __$$UserImplCopyWithImpl<$Res>
+    extends _$UserCopyWithImpl<$Res, _$UserImpl>
+    implements _$$UserImplCopyWith<$Res> {
+  __$$UserImplCopyWithImpl(_$UserImpl _value, $Res Function(_$UserImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? email = null,
+    Object? name = null,
+    Object? avatarUrl = freezed,
+    Object? phoneNumber = freezed,
+    Object? lastSeen = freezed,
+    Object? isOnline = freezed,
+  }) {
+    return _then(_$UserImpl(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      email: null == email
+          ? _value.email
+          : email // ignore: cast_nullable_to_non_nullable
+              as String,
+      name: null == name
+          ? _value.name
+          : name // ignore: cast_nullable_to_non_nullable
+              as String,
+      avatarUrl: freezed == avatarUrl
+          ? _value.avatarUrl
+          : avatarUrl // ignore: cast_nullable_to_non_nullable
+              as String?,
+      phoneNumber: freezed == phoneNumber
+          ? _value.phoneNumber
+          : phoneNumber // ignore: cast_nullable_to_non_nullable
+              as String?,
+      lastSeen: freezed == lastSeen
+          ? _value.lastSeen
+          : lastSeen // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      isOnline: freezed == isOnline
+          ? _value.isOnline
+          : isOnline // ignore: cast_nullable_to_non_nullable
+              as bool?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$UserImpl implements _User {
+  const _$UserImpl(
+      {required this.id,
+      required this.email,
+      required this.name,
+      this.avatarUrl,
+      this.phoneNumber,
+      this.lastSeen,
+      this.isOnline});
+
+  @override
+  final String id;
+  @override
+  final String email;
+  @override
+  final String name;
+  @override
+  final String? avatarUrl;
+  @override
+  final String? phoneNumber;
+  @override
+  final DateTime? lastSeen;
+  @override
+  final bool? isOnline;
+
+  @override
+  String toString() {
+    return 'User(id: $id, email: $email, name: $name, avatarUrl: $avatarUrl, phoneNumber: $phoneNumber, lastSeen: $lastSeen, isOnline: $isOnline)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$UserImpl &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.email, email) || other.email == email) &&
+            (identical(other.name, name) || other.name == name) &&
+            (identical(other.avatarUrl, avatarUrl) ||
+                other.avatarUrl == avatarUrl) &&
+            (identical(other.phoneNumber, phoneNumber) ||
+                other.phoneNumber == phoneNumber) &&
+            (identical(other.lastSeen, lastSeen) ||
+                other.lastSeen == lastSeen) &&
+            (identical(other.isOnline, isOnline) ||
+                other.isOnline == isOnline));
+  }
+
+  @override
+  int get hashCode => Object.hash(
+      runtimeType, id, email, name, avatarUrl, phoneNumber, lastSeen, isOnline);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$UserImplCopyWith<_$UserImpl> get copyWith =>
+      __$$UserImplCopyWithImpl<_$UserImpl>(this, _$identity);
+}
+
+abstract class _User implements User {
+  const factory _User(
+      {required final String id,
+      required final String email,
+      required final String name,
+      final String? avatarUrl,
+      final String? phoneNumber,
+      final DateTime? lastSeen,
+      final bool? isOnline}) = _$UserImpl;
+
+  @override
+  String get id;
+  @override
+  String get email;
+  @override
+  String get name;
+  @override
+  String? get avatarUrl;
+  @override
+  String? get phoneNumber;
+  @override
+  DateTime? get lastSeen;
+  @override
+  bool? get isOnline;
+  @override
+  @JsonKey(ignore: true)
+  _$$UserImplCopyWith<_$UserImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

client-mobile/lib/features/auth/domain/repositories/auth_repository.dart

@@ -0,0 +1,11 @@
+import '../../../../core/errors/result.dart';
+import '../entities/user.dart';
+
+abstract class AuthRepository {
+  Future<Result<User>> login(String email, String password);
+  Future<Result<User>> register(String email, String password, String name);
+  Future<Result<void>> logout();
+  Future<Result<User>> getCurrentUser();
+  Future<Result<void>> refreshToken();
+  bool get isLoggedIn;
+}

client-mobile/lib/features/auth/domain/usecases/login.dart

@@ -0,0 +1,13 @@
+import '../../../../core/errors/result.dart';
+import '../repositories/auth_repository.dart';
+import '../entities/user.dart';
+
+class LoginUseCase {
+  final AuthRepository _repository;
+
+  LoginUseCase(this._repository);
+
+  Future<Result<User>> execute(String email, String password) {
+    return _repository.login(email, password);
+  }
+}

client-mobile/lib/features/auth/presentation/bloc/auth_bloc.dart

@@ -0,0 +1,36 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'auth_event.dart';
+import 'auth_state.dart';
+
+class AuthBloc extends Bloc<AuthEvent, AuthState> {
+  AuthBloc() : super(const AuthState.initial()) {
+    on<AuthEventStarted>(_onStarted);
+    on<AuthEventLoginRequested>(_onLoginRequested);
+    on<AuthEventRegisterRequested>(_onRegisterRequested);
+    on<AuthEventLogoutRequested>(_onLogoutRequested);
+    on<AuthEventAuthChecked>(_onAuthChecked);
+    on<AuthEventEmailChanged>(_onEmailChanged);
+    on<AuthEventPasswordChanged>(_onPasswordChanged);
+    on<AuthEventNameChanged>(_onNameChanged);
+  }
+
+  Future<void> _onStarted(AuthEventStarted event, emit) async {}
+
+  Future<void> _onLoginRequested(AuthEventLoginRequested event, emit) async {
+    emit(const AuthState.loading());
+    emit(const AuthState.authenticated('user_123'));
+  }
+
+  Future<void> _onRegisterRequested(AuthEventRegisterRequested event, emit) async {
+    emit(const AuthState.loading());
+  }
+
+  Future<void> _onLogoutRequested(AuthEventLogoutRequested event, emit) async {
+    emit(const AuthState.unauthenticated());
+  }
+
+  Future<void> _onAuthChecked(AuthEventAuthChecked event, emit) async {}
+  void _onEmailChanged(AuthEventEmailChanged event, emit) {}
+  void _onPasswordChanged(AuthEventPasswordChanged event, emit) {}
+  void _onNameChanged(AuthEventNameChanged event, emit) {}
+}

client-mobile/lib/features/auth/presentation/bloc/auth_event.dart

@@ -0,0 +1,15 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'auth_event.freezed.dart';
+
+@freezed
+class AuthEvent with _$AuthEvent {
+  const factory AuthEvent.started() = AuthEventStarted;
+  const factory AuthEvent.loginRequested(String email, String password) = AuthEventLoginRequested;
+  const factory AuthEvent.registerRequested(String email, String password, String name) = AuthEventRegisterRequested;
+  const factory AuthEvent.logoutRequested() = AuthEventLogoutRequested;
+  const factory AuthEvent.authChecked() = AuthEventAuthChecked;
+  const factory AuthEvent.emailChanged(String email) = AuthEventEmailChanged;
+  const factory AuthEvent.passwordChanged(String password) = AuthEventPasswordChanged;
+  const factory AuthEvent.nameChanged(String name) = AuthEventNameChanged;
+}

client-mobile/lib/features/auth/presentation/bloc/auth_state.dart

@@ -0,0 +1,12 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'auth_state.freezed.dart';
+
+@freezed
+class AuthState with _$AuthState {
+  const factory AuthState.initial() = AuthInitial;
+  const factory AuthState.loading() = AuthLoading;
+  const factory AuthState.authenticated(String userId) = AuthAuthenticated;
+  const factory AuthState.unauthenticated() = AuthUnauthenticated;
+  const factory AuthState.error(String message) = AuthError;
+}

client-mobile/lib/features/auth/presentation/bloc/auth_state.freezed.dart

@@ -0,0 +1,757 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'auth_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$AuthState {
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String userId) authenticated,
+    required TResult Function() unauthenticated,
+    required TResult Function(String message) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String userId)? authenticated,
+    TResult? Function()? unauthenticated,
+    TResult? Function(String message)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String userId)? authenticated,
+    TResult Function()? unauthenticated,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(AuthInitial value) initial,
+    required TResult Function(AuthLoading value) loading,
+    required TResult Function(AuthAuthenticated value) authenticated,
+    required TResult Function(AuthUnauthenticated value) unauthenticated,
+    required TResult Function(AuthError value) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(AuthInitial value)? initial,
+    TResult? Function(AuthLoading value)? loading,
+    TResult? Function(AuthAuthenticated value)? authenticated,
+    TResult? Function(AuthUnauthenticated value)? unauthenticated,
+    TResult? Function(AuthError value)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(AuthInitial value)? initial,
+    TResult Function(AuthLoading value)? loading,
+    TResult Function(AuthAuthenticated value)? authenticated,
+    TResult Function(AuthUnauthenticated value)? unauthenticated,
+    TResult Function(AuthError value)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $AuthStateCopyWith<$Res> {
+  factory $AuthStateCopyWith(AuthState value, $Res Function(AuthState) then) =
+      _$AuthStateCopyWithImpl<$Res, AuthState>;
+}
+
+/// @nodoc
+class _$AuthStateCopyWithImpl<$Res, $Val extends AuthState>
+    implements $AuthStateCopyWith<$Res> {
+  _$AuthStateCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+}
+
+/// @nodoc
+abstract class _$$AuthInitialImplCopyWith<$Res> {
+  factory _$$AuthInitialImplCopyWith(
+          _$AuthInitialImpl value, $Res Function(_$AuthInitialImpl) then) =
+      __$$AuthInitialImplCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class __$$AuthInitialImplCopyWithImpl<$Res>
+    extends _$AuthStateCopyWithImpl<$Res, _$AuthInitialImpl>
+    implements _$$AuthInitialImplCopyWith<$Res> {
+  __$$AuthInitialImplCopyWithImpl(
+      _$AuthInitialImpl _value, $Res Function(_$AuthInitialImpl) _then)
+      : super(_value, _then);
+}
+
+/// @nodoc
+
+class _$AuthInitialImpl implements AuthInitial {
+  const _$AuthInitialImpl();
+
+  @override
+  String toString() {
+    return 'AuthState.initial()';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is _$AuthInitialImpl);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String userId) authenticated,
+    required TResult Function() unauthenticated,
+    required TResult Function(String message) error,
+  }) {
+    return initial();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String userId)? authenticated,
+    TResult? Function()? unauthenticated,
+    TResult? Function(String message)? error,
+  }) {
+    return initial?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String userId)? authenticated,
+    TResult Function()? unauthenticated,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (initial != null) {
+      return initial();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(AuthInitial value) initial,
+    required TResult Function(AuthLoading value) loading,
+    required TResult Function(AuthAuthenticated value) authenticated,
+    required TResult Function(AuthUnauthenticated value) unauthenticated,
+    required TResult Function(AuthError value) error,
+  }) {
+    return initial(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(AuthInitial value)? initial,
+    TResult? Function(AuthLoading value)? loading,
+    TResult? Function(AuthAuthenticated value)? authenticated,
+    TResult? Function(AuthUnauthenticated value)? unauthenticated,
+    TResult? Function(AuthError value)? error,
+  }) {
+    return initial?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(AuthInitial value)? initial,
+    TResult Function(AuthLoading value)? loading,
+    TResult Function(AuthAuthenticated value)? authenticated,
+    TResult Function(AuthUnauthenticated value)? unauthenticated,
+    TResult Function(AuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (initial != null) {
+      return initial(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AuthInitial implements AuthState {
+  const factory AuthInitial() = _$AuthInitialImpl;
+}
+
+/// @nodoc
+abstract class _$$AuthLoadingImplCopyWith<$Res> {
+  factory _$$AuthLoadingImplCopyWith(
+          _$AuthLoadingImpl value, $Res Function(_$AuthLoadingImpl) then) =
+      __$$AuthLoadingImplCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class __$$AuthLoadingImplCopyWithImpl<$Res>
+    extends _$AuthStateCopyWithImpl<$Res, _$AuthLoadingImpl>
+    implements _$$AuthLoadingImplCopyWith<$Res> {
+  __$$AuthLoadingImplCopyWithImpl(
+      _$AuthLoadingImpl _value, $Res Function(_$AuthLoadingImpl) _then)
+      : super(_value, _then);
+}
+
+/// @nodoc
+
+class _$AuthLoadingImpl implements AuthLoading {
+  const _$AuthLoadingImpl();
+
+  @override
+  String toString() {
+    return 'AuthState.loading()';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is _$AuthLoadingImpl);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String userId) authenticated,
+    required TResult Function() unauthenticated,
+    required TResult Function(String message) error,
+  }) {
+    return loading();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String userId)? authenticated,
+    TResult? Function()? unauthenticated,
+    TResult? Function(String message)? error,
+  }) {
+    return loading?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String userId)? authenticated,
+    TResult Function()? unauthenticated,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (loading != null) {
+      return loading();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(AuthInitial value) initial,
+    required TResult Function(AuthLoading value) loading,
+    required TResult Function(AuthAuthenticated value) authenticated,
+    required TResult Function(AuthUnauthenticated value) unauthenticated,
+    required TResult Function(AuthError value) error,
+  }) {
+    return loading(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(AuthInitial value)? initial,
+    TResult? Function(AuthLoading value)? loading,
+    TResult? Function(AuthAuthenticated value)? authenticated,
+    TResult? Function(AuthUnauthenticated value)? unauthenticated,
+    TResult? Function(AuthError value)? error,
+  }) {
+    return loading?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(AuthInitial value)? initial,
+    TResult Function(AuthLoading value)? loading,
+    TResult Function(AuthAuthenticated value)? authenticated,
+    TResult Function(AuthUnauthenticated value)? unauthenticated,
+    TResult Function(AuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (loading != null) {
+      return loading(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AuthLoading implements AuthState {
+  const factory AuthLoading() = _$AuthLoadingImpl;
+}
+
+/// @nodoc
+abstract class _$$AuthAuthenticatedImplCopyWith<$Res> {
+  factory _$$AuthAuthenticatedImplCopyWith(_$AuthAuthenticatedImpl value,
+          $Res Function(_$AuthAuthenticatedImpl) then) =
+      __$$AuthAuthenticatedImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call({String userId});
+}
+
+/// @nodoc
+class __$$AuthAuthenticatedImplCopyWithImpl<$Res>
+    extends _$AuthStateCopyWithImpl<$Res, _$AuthAuthenticatedImpl>
+    implements _$$AuthAuthenticatedImplCopyWith<$Res> {
+  __$$AuthAuthenticatedImplCopyWithImpl(_$AuthAuthenticatedImpl _value,
+      $Res Function(_$AuthAuthenticatedImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? userId = null,
+  }) {
+    return _then(_$AuthAuthenticatedImpl(
+      null == userId
+          ? _value.userId
+          : userId // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$AuthAuthenticatedImpl implements AuthAuthenticated {
+  const _$AuthAuthenticatedImpl(this.userId);
+
+  @override
+  final String userId;
+
+  @override
+  String toString() {
+    return 'AuthState.authenticated(userId: $userId)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$AuthAuthenticatedImpl &&
+            (identical(other.userId, userId) || other.userId == userId));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, userId);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$AuthAuthenticatedImplCopyWith<_$AuthAuthenticatedImpl> get copyWith =>
+      __$$AuthAuthenticatedImplCopyWithImpl<_$AuthAuthenticatedImpl>(
+          this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String userId) authenticated,
+    required TResult Function() unauthenticated,
+    required TResult Function(String message) error,
+  }) {
+    return authenticated(userId);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String userId)? authenticated,
+    TResult? Function()? unauthenticated,
+    TResult? Function(String message)? error,
+  }) {
+    return authenticated?.call(userId);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String userId)? authenticated,
+    TResult Function()? unauthenticated,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (authenticated != null) {
+      return authenticated(userId);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(AuthInitial value) initial,
+    required TResult Function(AuthLoading value) loading,
+    required TResult Function(AuthAuthenticated value) authenticated,
+    required TResult Function(AuthUnauthenticated value) unauthenticated,
+    required TResult Function(AuthError value) error,
+  }) {
+    return authenticated(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(AuthInitial value)? initial,
+    TResult? Function(AuthLoading value)? loading,
+    TResult? Function(AuthAuthenticated value)? authenticated,
+    TResult? Function(AuthUnauthenticated value)? unauthenticated,
+    TResult? Function(AuthError value)? error,
+  }) {
+    return authenticated?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(AuthInitial value)? initial,
+    TResult Function(AuthLoading value)? loading,
+    TResult Function(AuthAuthenticated value)? authenticated,
+    TResult Function(AuthUnauthenticated value)? unauthenticated,
+    TResult Function(AuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (authenticated != null) {
+      return authenticated(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AuthAuthenticated implements AuthState {
+  const factory AuthAuthenticated(final String userId) =
+      _$AuthAuthenticatedImpl;
+
+  String get userId;
+  @JsonKey(ignore: true)
+  _$$AuthAuthenticatedImplCopyWith<_$AuthAuthenticatedImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class _$$AuthUnauthenticatedImplCopyWith<$Res> {
+  factory _$$AuthUnauthenticatedImplCopyWith(_$AuthUnauthenticatedImpl value,
+          $Res Function(_$AuthUnauthenticatedImpl) then) =
+      __$$AuthUnauthenticatedImplCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class __$$AuthUnauthenticatedImplCopyWithImpl<$Res>
+    extends _$AuthStateCopyWithImpl<$Res, _$AuthUnauthenticatedImpl>
+    implements _$$AuthUnauthenticatedImplCopyWith<$Res> {
+  __$$AuthUnauthenticatedImplCopyWithImpl(_$AuthUnauthenticatedImpl _value,
+      $Res Function(_$AuthUnauthenticatedImpl) _then)
+      : super(_value, _then);
+}
+
+/// @nodoc
+
+class _$AuthUnauthenticatedImpl implements AuthUnauthenticated {
+  const _$AuthUnauthenticatedImpl();
+
+  @override
+  String toString() {
+    return 'AuthState.unauthenticated()';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$AuthUnauthenticatedImpl);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String userId) authenticated,
+    required TResult Function() unauthenticated,
+    required TResult Function(String message) error,
+  }) {
+    return unauthenticated();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String userId)? authenticated,
+    TResult? Function()? unauthenticated,
+    TResult? Function(String message)? error,
+  }) {
+    return unauthenticated?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String userId)? authenticated,
+    TResult Function()? unauthenticated,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (unauthenticated != null) {
+      return unauthenticated();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(AuthInitial value) initial,
+    required TResult Function(AuthLoading value) loading,
+    required TResult Function(AuthAuthenticated value) authenticated,
+    required TResult Function(AuthUnauthenticated value) unauthenticated,
+    required TResult Function(AuthError value) error,
+  }) {
+    return unauthenticated(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(AuthInitial value)? initial,
+    TResult? Function(AuthLoading value)? loading,
+    TResult? Function(AuthAuthenticated value)? authenticated,
+    TResult? Function(AuthUnauthenticated value)? unauthenticated,
+    TResult? Function(AuthError value)? error,
+  }) {
+    return unauthenticated?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(AuthInitial value)? initial,
+    TResult Function(AuthLoading value)? loading,
+    TResult Function(AuthAuthenticated value)? authenticated,
+    TResult Function(AuthUnauthenticated value)? unauthenticated,
+    TResult Function(AuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (unauthenticated != null) {
+      return unauthenticated(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AuthUnauthenticated implements AuthState {
+  const factory AuthUnauthenticated() = _$AuthUnauthenticatedImpl;
+}
+
+/// @nodoc
+abstract class _$$AuthErrorImplCopyWith<$Res> {
+  factory _$$AuthErrorImplCopyWith(
+          _$AuthErrorImpl value, $Res Function(_$AuthErrorImpl) then) =
+      __$$AuthErrorImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call({String message});
+}
+
+/// @nodoc
+class __$$AuthErrorImplCopyWithImpl<$Res>
+    extends _$AuthStateCopyWithImpl<$Res, _$AuthErrorImpl>
+    implements _$$AuthErrorImplCopyWith<$Res> {
+  __$$AuthErrorImplCopyWithImpl(
+      _$AuthErrorImpl _value, $Res Function(_$AuthErrorImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? message = null,
+  }) {
+    return _then(_$AuthErrorImpl(
+      null == message
+          ? _value.message
+          : message // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$AuthErrorImpl implements AuthError {
+  const _$AuthErrorImpl(this.message);
+
+  @override
+  final String message;
+
+  @override
+  String toString() {
+    return 'AuthState.error(message: $message)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$AuthErrorImpl &&
+            (identical(other.message, message) || other.message == message));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, message);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$AuthErrorImplCopyWith<_$AuthErrorImpl> get copyWith =>
+      __$$AuthErrorImplCopyWithImpl<_$AuthErrorImpl>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String userId) authenticated,
+    required TResult Function() unauthenticated,
+    required TResult Function(String message) error,
+  }) {
+    return error(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String userId)? authenticated,
+    TResult? Function()? unauthenticated,
+    TResult? Function(String message)? error,
+  }) {
+    return error?.call(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String userId)? authenticated,
+    TResult Function()? unauthenticated,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(message);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(AuthInitial value) initial,
+    required TResult Function(AuthLoading value) loading,
+    required TResult Function(AuthAuthenticated value) authenticated,
+    required TResult Function(AuthUnauthenticated value) unauthenticated,
+    required TResult Function(AuthError value) error,
+  }) {
+    return error(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(AuthInitial value)? initial,
+    TResult? Function(AuthLoading value)? loading,
+    TResult? Function(AuthAuthenticated value)? authenticated,
+    TResult? Function(AuthUnauthenticated value)? unauthenticated,
+    TResult? Function(AuthError value)? error,
+  }) {
+    return error?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(AuthInitial value)? initial,
+    TResult Function(AuthLoading value)? loading,
+    TResult Function(AuthAuthenticated value)? authenticated,
+    TResult Function(AuthUnauthenticated value)? unauthenticated,
+    TResult Function(AuthError value)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class AuthError implements AuthState {
+  const factory AuthError(final String message) = _$AuthErrorImpl;
+
+  String get message;
+  @JsonKey(ignore: true)
+  _$$AuthErrorImplCopyWith<_$AuthErrorImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

client-mobile/lib/features/auth/presentation/pages/login_page.dart

@@ -0,0 +1,134 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import '../bloc/auth_bloc.dart';
+import '../bloc/auth_event.dart';
+import '../bloc/auth_state.dart';
+
+class LoginPage extends StatefulWidget {
+  const LoginPage({super.key});
+
+  @override
+  State<LoginPage> createState() => _LoginPageState();
+}
+
+class _LoginPageState extends State<LoginPage> {
+  final _formKey = GlobalKey<FormState>();
+  final _emailController = TextEditingController();
+  final _passwordController = TextEditingController();
+
+  @override
+  void dispose() {
+    _emailController.dispose();
+    _passwordController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Вход'),
+      ),
+      body: BlocListener<AuthBloc, AuthState>(
+        listener: (context, state) {
+          state.whenOrNull(
+            authenticated: (userId) {
+              Navigator.of(context).popUntil((route) => route.isFirst);
+            },
+            error: (message) {
+              ScaffoldMessenger.of(context).showSnackBar(
+                SnackBar(content: Text(message)),
+              );
+            },
+          );
+        },
+        child: Center(
+          child: Padding(
+            padding: const EdgeInsets.all(24.0),
+            child: Form(
+              key: _formKey,
+              child: Column(
+                mainAxisAlignment: MainAxisAlignment.center,
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                children: [
+                  const Icon(
+                    Icons.chat_bubble_outline,
+                    size: 80,
+                    color: Color(0xFF2481CC),
+                  ),
+                  const SizedBox(height: 32),
+                  TextFormField(
+                    controller: _emailController,
+                    decoration: const InputDecoration(
+                      labelText: 'Email',
+                      prefixIcon: Icon(Icons.email_outlined),
+                    ),
+                    keyboardType: TextInputType.emailAddress,
+                    validator: (value) {
+                      if (value == null || value.isEmpty) {
+                        return 'Введите email';
+                      }
+                      if (!value.contains('@')) {
+                        return 'Введите корректный email';
+                      }
+                      return null;
+                    },
+                  ),
+                  const SizedBox(height: 16),
+                  TextFormField(
+                    controller: _passwordController,
+                    decoration: const InputDecoration(
+                      labelText: 'Пароль',
+                      prefixIcon: Icon(Icons.lock_outlined),
+                    ),
+                    obscureText: true,
+                    validator: (value) {
+                      if (value == null || value.isEmpty) {
+                        return 'Введите пароль';
+                      }
+                      if (value.length < 6) {
+                        return 'Пароль должен быть не менее 6 символов';
+                      }
+                      return null;
+                    },
+                  ),
+                  const SizedBox(height: 32),
+                  BlocBuilder<AuthBloc, AuthState>(
+                    builder: (context, state) {
+                      if (state is AuthLoading) {
+                        return const Center(child: CircularProgressIndicator());
+                      }
+                      return ElevatedButton(
+                        onPressed: () {
+                          if (_formKey.currentState?.validate() ?? false) {
+                            context.read<AuthBloc>().add(
+                              AuthEvent.loginRequested(
+                                _emailController.text,
+                                _passwordController.text,
+                              ),
+                            );
+                          }
+                        },
+                        child: const Padding(
+                          padding: EdgeInsets.symmetric(vertical: 12),
+                          child: Text('Войти', style: TextStyle(fontSize: 16)),
+                        ),
+                      );
+                    },
+                  ),
+                  const SizedBox(height: 16),
+                  TextButton(
+                    onPressed: () {
+                      // Navigate to register page
+                    },
+                    child: const Text('Нет аккаунта? Зарегистрироваться'),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

client-mobile/lib/features/chat/data/datasources/chat_local_datasource.dart

@@ -0,0 +1,13 @@
+import '../../../../core/errors/result.dart';
+import '../../domain/entities/chat.dart';
+import '../../domain/entities/message.dart';
+
+abstract class ChatLocalDataSource {
+  Future<Result<List<Chat>>> getCachedChats();
+  Future<Result<void>> cacheChats(List<Chat> chats);
+  Future<Result<Chat>> getChatFromCache(String chatId);
+  Future<Result<void>> cacheChat(Chat chat);
+  Future<Result<List<Message>>> getMessagesFromCache(String chatId);
+  Future<Result<void>> cacheMessages(String chatId, List<Message> messages);
+  Future<Result<void>> clearCache();
+}

client-mobile/lib/features/chat/data/datasources/chat_remote_datasource.dart

@@ -0,0 +1,12 @@
+import '../../../../core/errors/result.dart';
+import '../../domain/entities/chat.dart';
+import '../../domain/entities/message.dart';
+
+abstract class ChatRemoteDataSource {
+  Future<Result<List<Chat>>> getChats();
+  Future<Result<Chat>> getChatById(String chatId);
+  Future<Result<void>> createChat(String title, List<String> participantIds);
+  Future<Result<void>> sendMessage(String chatId, Message message);
+  Future<Result<List<Message>>> getMessages(String chatId, {int? limit, String? lastMessageId});
+  Stream<Result<Message>> listenToMessages(String chatId);
+}

client-mobile/lib/features/chat/data/repositories/chat_repository_impl.dart

@@ -0,0 +1,47 @@
+import '../../../../core/errors/errors.dart';
+import '../../../../core/errors/result.dart';
+import '../../domain/entities/chat.dart';
+import '../../domain/entities/message.dart';
+import '../../domain/repositories/chat_repository.dart';
+
+class ChatRepositoryImpl implements ChatRepository {
+  @override
+  Future<Result<void>> createChat(String title, List<String> participantIds) async {
+    return const Result.success(null);
+  }
+
+  @override
+  Future<Result<void>> deleteChat(String chatId) async {
+    return const Result.success(null);
+  }
+
+  @override
+  Future<Result<Chat>> getChatById(String chatId) async {
+    return const Result.failure(AppError.notFound(message: 'Chat not found'));
+  }
+
+  @override
+  Future<Result<List<Chat>>> getChats() async {
+    // Return empty list for now
+    return const Result.success([]);
+  }
+
+  @override
+  Future<Result<List<Message>>> getMessages(
+    String chatId, {
+    int? limit,
+    String? lastMessageId,
+  }) async {
+    return const Result.success([]);
+  }
+
+  @override
+  Future<Result<void>> sendMessage(String chatId, Message message) async {
+    return const Result.success(null);
+  }
+
+  @override
+  Future<Result<void>> updateChat(String chatId, String title) async {
+    return const Result.success(null);
+  }
+}

client-mobile/lib/features/chat/domain/entities/chat.dart

@@ -0,0 +1,21 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'user.dart';
+import 'message.dart';
+
+part 'chat.freezed.dart';
+
+@freezed
+class Chat with _$Chat {
+  const factory Chat({
+    required String id,
+    required String type,
+    required String title,
+    String? avatarUrl,
+    List<User>? participants,
+    @Default(null) Message? lastMessage,
+    DateTime? lastMessageTime,
+    @Default(0) int unreadCount,
+    @Default(false) bool isMuted,
+    @Default(false) bool isPinned,
+  }) = _Chat;
+}

client-mobile/lib/features/chat/domain/entities/chat.freezed.dart

@@ -0,0 +1,359 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'chat.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$Chat {
+  String get id => throw _privateConstructorUsedError;
+  String get type => throw _privateConstructorUsedError;
+  String get title => throw _privateConstructorUsedError;
+  String? get avatarUrl => throw _privateConstructorUsedError;
+  List<User>? get participants => throw _privateConstructorUsedError;
+  Message? get lastMessage => throw _privateConstructorUsedError;
+  DateTime? get lastMessageTime => throw _privateConstructorUsedError;
+  int get unreadCount => throw _privateConstructorUsedError;
+  bool get isMuted => throw _privateConstructorUsedError;
+  bool get isPinned => throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $ChatCopyWith<Chat> get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $ChatCopyWith<$Res> {
+  factory $ChatCopyWith(Chat value, $Res Function(Chat) then) =
+      _$ChatCopyWithImpl<$Res, Chat>;
+  @useResult
+  $Res call(
+      {String id,
+      String type,
+      String title,
+      String? avatarUrl,
+      List<User>? participants,
+      Message? lastMessage,
+      DateTime? lastMessageTime,
+      int unreadCount,
+      bool isMuted,
+      bool isPinned});
+
+  $MessageCopyWith<$Res>? get lastMessage;
+}
+
+/// @nodoc
+class _$ChatCopyWithImpl<$Res, $Val extends Chat>
+    implements $ChatCopyWith<$Res> {
+  _$ChatCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? type = null,
+    Object? title = null,
+    Object? avatarUrl = freezed,
+    Object? participants = freezed,
+    Object? lastMessage = freezed,
+    Object? lastMessageTime = freezed,
+    Object? unreadCount = null,
+    Object? isMuted = null,
+    Object? isPinned = null,
+  }) {
+    return _then(_value.copyWith(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      type: null == type
+          ? _value.type
+          : type // ignore: cast_nullable_to_non_nullable
+              as String,
+      title: null == title
+          ? _value.title
+          : title // ignore: cast_nullable_to_non_nullable
+              as String,
+      avatarUrl: freezed == avatarUrl
+          ? _value.avatarUrl
+          : avatarUrl // ignore: cast_nullable_to_non_nullable
+              as String?,
+      participants: freezed == participants
+          ? _value.participants
+          : participants // ignore: cast_nullable_to_non_nullable
+              as List<User>?,
+      lastMessage: freezed == lastMessage
+          ? _value.lastMessage
+          : lastMessage // ignore: cast_nullable_to_non_nullable
+              as Message?,
+      lastMessageTime: freezed == lastMessageTime
+          ? _value.lastMessageTime
+          : lastMessageTime // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      unreadCount: null == unreadCount
+          ? _value.unreadCount
+          : unreadCount // ignore: cast_nullable_to_non_nullable
+              as int,
+      isMuted: null == isMuted
+          ? _value.isMuted
+          : isMuted // ignore: cast_nullable_to_non_nullable
+              as bool,
+      isPinned: null == isPinned
+          ? _value.isPinned
+          : isPinned // ignore: cast_nullable_to_non_nullable
+              as bool,
+    ) as $Val);
+  }
+
+  @override
+  @pragma('vm:prefer-inline')
+  $MessageCopyWith<$Res>? get lastMessage {
+    if (_value.lastMessage == null) {
+      return null;
+    }
+
+    return $MessageCopyWith<$Res>(_value.lastMessage!, (value) {
+      return _then(_value.copyWith(lastMessage: value) as $Val);
+    });
+  }
+}
+
+/// @nodoc
+abstract class _$$ChatImplCopyWith<$Res> implements $ChatCopyWith<$Res> {
+  factory _$$ChatImplCopyWith(
+          _$ChatImpl value, $Res Function(_$ChatImpl) then) =
+      __$$ChatImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {String id,
+      String type,
+      String title,
+      String? avatarUrl,
+      List<User>? participants,
+      Message? lastMessage,
+      DateTime? lastMessageTime,
+      int unreadCount,
+      bool isMuted,
+      bool isPinned});
+
+  @override
+  $MessageCopyWith<$Res>? get lastMessage;
+}
+
+/// @nodoc
+class __$$ChatImplCopyWithImpl<$Res>
+    extends _$ChatCopyWithImpl<$Res, _$ChatImpl>
+    implements _$$ChatImplCopyWith<$Res> {
+  __$$ChatImplCopyWithImpl(_$ChatImpl _value, $Res Function(_$ChatImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? type = null,
+    Object? title = null,
+    Object? avatarUrl = freezed,
+    Object? participants = freezed,
+    Object? lastMessage = freezed,
+    Object? lastMessageTime = freezed,
+    Object? unreadCount = null,
+    Object? isMuted = null,
+    Object? isPinned = null,
+  }) {
+    return _then(_$ChatImpl(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      type: null == type
+          ? _value.type
+          : type // ignore: cast_nullable_to_non_nullable
+              as String,
+      title: null == title
+          ? _value.title
+          : title // ignore: cast_nullable_to_non_nullable
+              as String,
+      avatarUrl: freezed == avatarUrl
+          ? _value.avatarUrl
+          : avatarUrl // ignore: cast_nullable_to_non_nullable
+              as String?,
+      participants: freezed == participants
+          ? _value._participants
+          : participants // ignore: cast_nullable_to_non_nullable
+              as List<User>?,
+      lastMessage: freezed == lastMessage
+          ? _value.lastMessage
+          : lastMessage // ignore: cast_nullable_to_non_nullable
+              as Message?,
+      lastMessageTime: freezed == lastMessageTime
+          ? _value.lastMessageTime
+          : lastMessageTime // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      unreadCount: null == unreadCount
+          ? _value.unreadCount
+          : unreadCount // ignore: cast_nullable_to_non_nullable
+              as int,
+      isMuted: null == isMuted
+          ? _value.isMuted
+          : isMuted // ignore: cast_nullable_to_non_nullable
+              as bool,
+      isPinned: null == isPinned
+          ? _value.isPinned
+          : isPinned // ignore: cast_nullable_to_non_nullable
+              as bool,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$ChatImpl implements _Chat {
+  const _$ChatImpl(
+      {required this.id,
+      required this.type,
+      required this.title,
+      this.avatarUrl,
+      final List<User>? participants,
+      this.lastMessage = null,
+      this.lastMessageTime,
+      this.unreadCount = 0,
+      this.isMuted = false,
+      this.isPinned = false})
+      : _participants = participants;
+
+  @override
+  final String id;
+  @override
+  final String type;
+  @override
+  final String title;
+  @override
+  final String? avatarUrl;
+  final List<User>? _participants;
+  @override
+  List<User>? get participants {
+    final value = _participants;
+    if (value == null) return null;
+    if (_participants is EqualUnmodifiableListView) return _participants;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableListView(value);
+  }
+
+  @override
+  @JsonKey()
+  final Message? lastMessage;
+  @override
+  final DateTime? lastMessageTime;
+  @override
+  @JsonKey()
+  final int unreadCount;
+  @override
+  @JsonKey()
+  final bool isMuted;
+  @override
+  @JsonKey()
+  final bool isPinned;
+
+  @override
+  String toString() {
+    return 'Chat(id: $id, type: $type, title: $title, avatarUrl: $avatarUrl, participants: $participants, lastMessage: $lastMessage, lastMessageTime: $lastMessageTime, unreadCount: $unreadCount, isMuted: $isMuted, isPinned: $isPinned)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$ChatImpl &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.type, type) || other.type == type) &&
+            (identical(other.title, title) || other.title == title) &&
+            (identical(other.avatarUrl, avatarUrl) ||
+                other.avatarUrl == avatarUrl) &&
+            const DeepCollectionEquality()
+                .equals(other._participants, _participants) &&
+            (identical(other.lastMessage, lastMessage) ||
+                other.lastMessage == lastMessage) &&
+            (identical(other.lastMessageTime, lastMessageTime) ||
+                other.lastMessageTime == lastMessageTime) &&
+            (identical(other.unreadCount, unreadCount) ||
+                other.unreadCount == unreadCount) &&
+            (identical(other.isMuted, isMuted) || other.isMuted == isMuted) &&
+            (identical(other.isPinned, isPinned) ||
+                other.isPinned == isPinned));
+  }
+
+  @override
+  int get hashCode => Object.hash(
+      runtimeType,
+      id,
+      type,
+      title,
+      avatarUrl,
+      const DeepCollectionEquality().hash(_participants),
+      lastMessage,
+      lastMessageTime,
+      unreadCount,
+      isMuted,
+      isPinned);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$ChatImplCopyWith<_$ChatImpl> get copyWith =>
+      __$$ChatImplCopyWithImpl<_$ChatImpl>(this, _$identity);
+}
+
+abstract class _Chat implements Chat {
+  const factory _Chat(
+      {required final String id,
+      required final String type,
+      required final String title,
+      final String? avatarUrl,
+      final List<User>? participants,
+      final Message? lastMessage,
+      final DateTime? lastMessageTime,
+      final int unreadCount,
+      final bool isMuted,
+      final bool isPinned}) = _$ChatImpl;
+
+  @override
+  String get id;
+  @override
+  String get type;
+  @override
+  String get title;
+  @override
+  String? get avatarUrl;
+  @override
+  List<User>? get participants;
+  @override
+  Message? get lastMessage;
+  @override
+  DateTime? get lastMessageTime;
+  @override
+  int get unreadCount;
+  @override
+  bool get isMuted;
+  @override
+  bool get isPinned;
+  @override
+  @JsonKey(ignore: true)
+  _$$ChatImplCopyWith<_$ChatImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

client-mobile/lib/features/chat/domain/entities/message.dart

@@ -0,0 +1,21 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'message.freezed.dart';
+// part 'message.g.dart';
+
+@freezed
+class Message with _$Message {
+  const factory Message({
+    required String id,
+    required String chatId,
+    required String senderId,
+    required String content,
+    required String messageType, // 'text', 'image', 'video', 'audio', 'file'
+    DateTime? createdAt,
+    DateTime? updatedAt,
+    bool? isRead,
+    Map<String, dynamic>? media,
+  }) = _Message;
+
+  // factory Message.fromJson(Map<String, dynamic> json) => _$MessageFromJson(json);
+}

client-mobile/lib/features/chat/domain/entities/message.freezed.dart

@@ -0,0 +1,317 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'message.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$Message {
+  String get id => throw _privateConstructorUsedError;
+  String get chatId => throw _privateConstructorUsedError;
+  String get senderId => throw _privateConstructorUsedError;
+  String get content => throw _privateConstructorUsedError;
+  String get messageType =>
+      throw _privateConstructorUsedError; // 'text', 'image', 'video', 'audio', 'file'
+  DateTime? get createdAt => throw _privateConstructorUsedError;
+  DateTime? get updatedAt => throw _privateConstructorUsedError;
+  bool? get isRead => throw _privateConstructorUsedError;
+  Map<String, dynamic>? get media => throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $MessageCopyWith<Message> get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $MessageCopyWith<$Res> {
+  factory $MessageCopyWith(Message value, $Res Function(Message) then) =
+      _$MessageCopyWithImpl<$Res, Message>;
+  @useResult
+  $Res call(
+      {String id,
+      String chatId,
+      String senderId,
+      String content,
+      String messageType,
+      DateTime? createdAt,
+      DateTime? updatedAt,
+      bool? isRead,
+      Map<String, dynamic>? media});
+}
+
+/// @nodoc
+class _$MessageCopyWithImpl<$Res, $Val extends Message>
+    implements $MessageCopyWith<$Res> {
+  _$MessageCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? chatId = null,
+    Object? senderId = null,
+    Object? content = null,
+    Object? messageType = null,
+    Object? createdAt = freezed,
+    Object? updatedAt = freezed,
+    Object? isRead = freezed,
+    Object? media = freezed,
+  }) {
+    return _then(_value.copyWith(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      chatId: null == chatId
+          ? _value.chatId
+          : chatId // ignore: cast_nullable_to_non_nullable
+              as String,
+      senderId: null == senderId
+          ? _value.senderId
+          : senderId // ignore: cast_nullable_to_non_nullable
+              as String,
+      content: null == content
+          ? _value.content
+          : content // ignore: cast_nullable_to_non_nullable
+              as String,
+      messageType: null == messageType
+          ? _value.messageType
+          : messageType // ignore: cast_nullable_to_non_nullable
+              as String,
+      createdAt: freezed == createdAt
+          ? _value.createdAt
+          : createdAt // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      updatedAt: freezed == updatedAt
+          ? _value.updatedAt
+          : updatedAt // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      isRead: freezed == isRead
+          ? _value.isRead
+          : isRead // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      media: freezed == media
+          ? _value.media
+          : media // ignore: cast_nullable_to_non_nullable
+              as Map<String, dynamic>?,
+    ) as $Val);
+  }
+}
+
+/// @nodoc
+abstract class _$$MessageImplCopyWith<$Res> implements $MessageCopyWith<$Res> {
+  factory _$$MessageImplCopyWith(
+          _$MessageImpl value, $Res Function(_$MessageImpl) then) =
+      __$$MessageImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {String id,
+      String chatId,
+      String senderId,
+      String content,
+      String messageType,
+      DateTime? createdAt,
+      DateTime? updatedAt,
+      bool? isRead,
+      Map<String, dynamic>? media});
+}
+
+/// @nodoc
+class __$$MessageImplCopyWithImpl<$Res>
+    extends _$MessageCopyWithImpl<$Res, _$MessageImpl>
+    implements _$$MessageImplCopyWith<$Res> {
+  __$$MessageImplCopyWithImpl(
+      _$MessageImpl _value, $Res Function(_$MessageImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? chatId = null,
+    Object? senderId = null,
+    Object? content = null,
+    Object? messageType = null,
+    Object? createdAt = freezed,
+    Object? updatedAt = freezed,
+    Object? isRead = freezed,
+    Object? media = freezed,
+  }) {
+    return _then(_$MessageImpl(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      chatId: null == chatId
+          ? _value.chatId
+          : chatId // ignore: cast_nullable_to_non_nullable
+              as String,
+      senderId: null == senderId
+          ? _value.senderId
+          : senderId // ignore: cast_nullable_to_non_nullable
+              as String,
+      content: null == content
+          ? _value.content
+          : content // ignore: cast_nullable_to_non_nullable
+              as String,
+      messageType: null == messageType
+          ? _value.messageType
+          : messageType // ignore: cast_nullable_to_non_nullable
+              as String,
+      createdAt: freezed == createdAt
+          ? _value.createdAt
+          : createdAt // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      updatedAt: freezed == updatedAt
+          ? _value.updatedAt
+          : updatedAt // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      isRead: freezed == isRead
+          ? _value.isRead
+          : isRead // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      media: freezed == media
+          ? _value._media
+          : media // ignore: cast_nullable_to_non_nullable
+              as Map<String, dynamic>?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$MessageImpl implements _Message {
+  const _$MessageImpl(
+      {required this.id,
+      required this.chatId,
+      required this.senderId,
+      required this.content,
+      required this.messageType,
+      this.createdAt,
+      this.updatedAt,
+      this.isRead,
+      final Map<String, dynamic>? media})
+      : _media = media;
+
+  @override
+  final String id;
+  @override
+  final String chatId;
+  @override
+  final String senderId;
+  @override
+  final String content;
+  @override
+  final String messageType;
+// 'text', 'image', 'video', 'audio', 'file'
+  @override
+  final DateTime? createdAt;
+  @override
+  final DateTime? updatedAt;
+  @override
+  final bool? isRead;
+  final Map<String, dynamic>? _media;
+  @override
+  Map<String, dynamic>? get media {
+    final value = _media;
+    if (value == null) return null;
+    if (_media is EqualUnmodifiableMapView) return _media;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableMapView(value);
+  }
+
+  @override
+  String toString() {
+    return 'Message(id: $id, chatId: $chatId, senderId: $senderId, content: $content, messageType: $messageType, createdAt: $createdAt, updatedAt: $updatedAt, isRead: $isRead, media: $media)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$MessageImpl &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.chatId, chatId) || other.chatId == chatId) &&
+            (identical(other.senderId, senderId) ||
+                other.senderId == senderId) &&
+            (identical(other.content, content) || other.content == content) &&
+            (identical(other.messageType, messageType) ||
+                other.messageType == messageType) &&
+            (identical(other.createdAt, createdAt) ||
+                other.createdAt == createdAt) &&
+            (identical(other.updatedAt, updatedAt) ||
+                other.updatedAt == updatedAt) &&
+            (identical(other.isRead, isRead) || other.isRead == isRead) &&
+            const DeepCollectionEquality().equals(other._media, _media));
+  }
+
+  @override
+  int get hashCode => Object.hash(
+      runtimeType,
+      id,
+      chatId,
+      senderId,
+      content,
+      messageType,
+      createdAt,
+      updatedAt,
+      isRead,
+      const DeepCollectionEquality().hash(_media));
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$MessageImplCopyWith<_$MessageImpl> get copyWith =>
+      __$$MessageImplCopyWithImpl<_$MessageImpl>(this, _$identity);
+}
+
+abstract class _Message implements Message {
+  const factory _Message(
+      {required final String id,
+      required final String chatId,
+      required final String senderId,
+      required final String content,
+      required final String messageType,
+      final DateTime? createdAt,
+      final DateTime? updatedAt,
+      final bool? isRead,
+      final Map<String, dynamic>? media}) = _$MessageImpl;
+
+  @override
+  String get id;
+  @override
+  String get chatId;
+  @override
+  String get senderId;
+  @override
+  String get content;
+  @override
+  String get messageType;
+  @override // 'text', 'image', 'video', 'audio', 'file'
+  DateTime? get createdAt;
+  @override
+  DateTime? get updatedAt;
+  @override
+  bool? get isRead;
+  @override
+  Map<String, dynamic>? get media;
+  @override
+  @JsonKey(ignore: true)
+  _$$MessageImplCopyWith<_$MessageImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

client-mobile/lib/features/chat/domain/entities/user.dart

@@ -0,0 +1,18 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'user.freezed.dart';
+// part 'user.g.dart';
+
+@freezed
+class User with _$User {
+  const factory User({
+    required String id,
+    required String name,
+    String? avatarUrl,
+    String? role, // 'admin', 'member'
+    bool? isOnline,
+    DateTime? lastSeen,
+  }) = _User;
+
+  // factory User.fromJson(Map<String, dynamic> json) => _$UserFromJson(json);
+}

client-mobile/lib/features/chat/domain/entities/user.freezed.dart

@@ -0,0 +1,237 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'user.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$User {
+  String get id => throw _privateConstructorUsedError;
+  String get name => throw _privateConstructorUsedError;
+  String? get avatarUrl => throw _privateConstructorUsedError;
+  String? get role => throw _privateConstructorUsedError; // 'admin', 'member'
+  bool? get isOnline => throw _privateConstructorUsedError;
+  DateTime? get lastSeen => throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $UserCopyWith<User> get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $UserCopyWith<$Res> {
+  factory $UserCopyWith(User value, $Res Function(User) then) =
+      _$UserCopyWithImpl<$Res, User>;
+  @useResult
+  $Res call(
+      {String id,
+      String name,
+      String? avatarUrl,
+      String? role,
+      bool? isOnline,
+      DateTime? lastSeen});
+}
+
+/// @nodoc
+class _$UserCopyWithImpl<$Res, $Val extends User>
+    implements $UserCopyWith<$Res> {
+  _$UserCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? name = null,
+    Object? avatarUrl = freezed,
+    Object? role = freezed,
+    Object? isOnline = freezed,
+    Object? lastSeen = freezed,
+  }) {
+    return _then(_value.copyWith(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      name: null == name
+          ? _value.name
+          : name // ignore: cast_nullable_to_non_nullable
+              as String,
+      avatarUrl: freezed == avatarUrl
+          ? _value.avatarUrl
+          : avatarUrl // ignore: cast_nullable_to_non_nullable
+              as String?,
+      role: freezed == role
+          ? _value.role
+          : role // ignore: cast_nullable_to_non_nullable
+              as String?,
+      isOnline: freezed == isOnline
+          ? _value.isOnline
+          : isOnline // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      lastSeen: freezed == lastSeen
+          ? _value.lastSeen
+          : lastSeen // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+    ) as $Val);
+  }
+}
+
+/// @nodoc
+abstract class _$$UserImplCopyWith<$Res> implements $UserCopyWith<$Res> {
+  factory _$$UserImplCopyWith(
+          _$UserImpl value, $Res Function(_$UserImpl) then) =
+      __$$UserImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {String id,
+      String name,
+      String? avatarUrl,
+      String? role,
+      bool? isOnline,
+      DateTime? lastSeen});
+}
+
+/// @nodoc
+class __$$UserImplCopyWithImpl<$Res>
+    extends _$UserCopyWithImpl<$Res, _$UserImpl>
+    implements _$$UserImplCopyWith<$Res> {
+  __$$UserImplCopyWithImpl(_$UserImpl _value, $Res Function(_$UserImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? name = null,
+    Object? avatarUrl = freezed,
+    Object? role = freezed,
+    Object? isOnline = freezed,
+    Object? lastSeen = freezed,
+  }) {
+    return _then(_$UserImpl(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      name: null == name
+          ? _value.name
+          : name // ignore: cast_nullable_to_non_nullable
+              as String,
+      avatarUrl: freezed == avatarUrl
+          ? _value.avatarUrl
+          : avatarUrl // ignore: cast_nullable_to_non_nullable
+              as String?,
+      role: freezed == role
+          ? _value.role
+          : role // ignore: cast_nullable_to_non_nullable
+              as String?,
+      isOnline: freezed == isOnline
+          ? _value.isOnline
+          : isOnline // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      lastSeen: freezed == lastSeen
+          ? _value.lastSeen
+          : lastSeen // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$UserImpl implements _User {
+  const _$UserImpl(
+      {required this.id,
+      required this.name,
+      this.avatarUrl,
+      this.role,
+      this.isOnline,
+      this.lastSeen});
+
+  @override
+  final String id;
+  @override
+  final String name;
+  @override
+  final String? avatarUrl;
+  @override
+  final String? role;
+// 'admin', 'member'
+  @override
+  final bool? isOnline;
+  @override
+  final DateTime? lastSeen;
+
+  @override
+  String toString() {
+    return 'User(id: $id, name: $name, avatarUrl: $avatarUrl, role: $role, isOnline: $isOnline, lastSeen: $lastSeen)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$UserImpl &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.name, name) || other.name == name) &&
+            (identical(other.avatarUrl, avatarUrl) ||
+                other.avatarUrl == avatarUrl) &&
+            (identical(other.role, role) || other.role == role) &&
+            (identical(other.isOnline, isOnline) ||
+                other.isOnline == isOnline) &&
+            (identical(other.lastSeen, lastSeen) ||
+                other.lastSeen == lastSeen));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, id, name, avatarUrl, role, isOnline, lastSeen);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$UserImplCopyWith<_$UserImpl> get copyWith =>
+      __$$UserImplCopyWithImpl<_$UserImpl>(this, _$identity);
+}
+
+abstract class _User implements User {
+  const factory _User(
+      {required final String id,
+      required final String name,
+      final String? avatarUrl,
+      final String? role,
+      final bool? isOnline,
+      final DateTime? lastSeen}) = _$UserImpl;
+
+  @override
+  String get id;
+  @override
+  String get name;
+  @override
+  String? get avatarUrl;
+  @override
+  String? get role;
+  @override // 'admin', 'member'
+  bool? get isOnline;
+  @override
+  DateTime? get lastSeen;
+  @override
+  @JsonKey(ignore: true)
+  _$$UserImplCopyWith<_$UserImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

client-mobile/lib/features/chat/domain/repositories/chat_repository.dart

@@ -0,0 +1,13 @@
+import '../../../../core/errors/result.dart';
+import '../entities/chat.dart';
+import '../entities/message.dart';
+
+abstract class ChatRepository {
+  Future<Result<List<Chat>>> getChats();
+  Future<Result<Chat>> getChatById(String chatId);
+  Future<Result<void>> createChat(String title, List<String> participantIds);
+  Future<Result<void>> sendMessage(String chatId, Message message);
+  Future<Result<List<Message>>> getMessages(String chatId, {int? limit, String? lastMessageId});
+  Future<Result<void>> deleteChat(String chatId);
+  Future<Result<void>> updateChat(String chatId, String title);
+}

client-mobile/lib/features/chat/domain/usecases/get_chats.dart

@@ -0,0 +1,13 @@
+import '../../../../core/errors/result.dart';
+import '../repositories/chat_repository.dart';
+import '../entities/chat.dart';
+
+class GetChatsUseCase {
+  final ChatRepository _repository;
+
+  GetChatsUseCase(this._repository);
+
+  Future<Result<List<Chat>>> execute() {
+    return _repository.getChats();
+  }
+}

client-mobile/lib/features/chat/presentation/bloc/chat_bloc.dart

@@ -0,0 +1,23 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'chat_event.dart';
+import 'chat_state.dart';
+
+class ChatBloc extends Bloc<ChatEvent, ChatState> {
+  ChatBloc() : super(const ChatState.initial()) {
+    on<ChatEventStarted>(_onStarted);
+    on<ChatEventChatsLoaded>(_onChatsLoaded);
+    on<ChatEventChatSelected>(_onChatSelected);
+    on<ChatEventMessagesRequested>(_onMessagesRequested);
+    on<ChatEventMessageSent>(_onMessageSent);
+  }
+
+  Future<void> _onStarted(ChatEventStarted event, emit) async {
+    emit(const ChatState.loading());
+    emit(const ChatState.chatsLoaded([]));
+  }
+    
+  Future<void> _onChatsLoaded(ChatEventChatsLoaded event, emit) async {}
+  Future<void> _onChatSelected(ChatEventChatSelected event, emit) async {}
+  Future<void> _onMessagesRequested(ChatEventMessagesRequested event, emit) async {}
+  Future<void> _onMessageSent(ChatEventMessageSent event, emit) async {}
+}

client-mobile/lib/features/chat/presentation/bloc/chat_event.dart

@@ -0,0 +1,14 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'chat_event.freezed.dart';
+
+@freezed
+class ChatEvent with _$ChatEvent {
+  const factory ChatEvent.started() = ChatEventStarted;
+  const factory ChatEvent.chatsLoaded() = ChatEventChatsLoaded;
+  const factory ChatEvent.chatSelected(String chatId) = ChatEventChatSelected;
+  const factory ChatEvent.messagesRequested(String chatId, {String? lastMessageId}) = ChatEventMessagesRequested;
+  const factory ChatEvent.messageSent(String chatId, String content) = ChatEventMessageSent;
+  const factory ChatEvent.messageRead(String chatId, String messageId) = ChatEventMessageRead;
+  const factory ChatEvent.chatCreated(String title, List<String> participantIds) = ChatEventChatCreated;
+}

client-mobile/lib/features/chat/presentation/bloc/chat_state.dart

@@ -0,0 +1,14 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'chat_state.freezed.dart';
+
+@freezed
+class ChatState with _$ChatState {
+  const factory ChatState.initial() = ChatInitial;
+  const factory ChatState.loading() = ChatLoading;
+  const factory ChatState.chatsLoaded(List<dynamic> chats) = _ChatsLoaded;
+  const factory ChatState.chatSelected(String chat, List<dynamic> messages) = _ChatSelected;
+  const factory ChatState.messagesLoaded(List<dynamic> messages) = _MessagesLoaded;
+  const factory ChatState.messageSent() = _MessageSent;
+  const factory ChatState.error(String message) = ChatError;
+}

client-mobile/lib/features/chat/presentation/pages/chat_detail_page.dart

@@ -0,0 +1,105 @@
+import 'package:flutter/material.dart';
+
+class ChatDetailPage extends StatefulWidget {
+  final String chatId;
+  final String chatTitle;
+
+  const ChatDetailPage({
+    super.key,
+    required this.chatId,
+    required this.chatTitle,
+  });
+
+  @override
+  State<ChatDetailPage> createState() => _ChatDetailPageState();
+}
+
+class _ChatDetailPageState extends State<ChatDetailPage> {
+  final _messageController = TextEditingController();
+
+  @override
+  void dispose() {
+    _messageController.dispose();
+    super.dispose();
+  }
+
+  void _sendMessage() {
+    if (_messageController.text.trim().isEmpty) return;
+    _messageController.clear();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(widget.chatTitle),
+      ),
+      body: const Center(child: Text('Chat Detail')),
+      bottomNavigationBar: _MessageInput(
+        controller: _messageController,
+        onSend: _sendMessage,
+      ),
+    );
+  }
+}
+
+class _MessageInput extends StatelessWidget {
+  final TextEditingController controller;
+  final VoidCallback onSend;
+
+  const _MessageInput({
+    required this.controller,
+    required this.onSend,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      padding: const EdgeInsets.all(8),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        boxShadow: [
+          BoxShadow(
+            color: Colors.black.withOpacity(0.1),
+            blurRadius: 4,
+            offset: const Offset(0, -2),
+          ),
+        ],
+      ),
+      child: Row(
+        children: [
+          IconButton(
+            icon: const Icon(Icons.attach_file),
+            onPressed: () {},
+          ),
+          Expanded(
+            child: TextField(
+              controller: controller,
+              decoration: InputDecoration(
+                hintText: 'Сообщение',
+                border: OutlineInputBorder(
+                  borderRadius: BorderRadius.circular(24),
+                  borderSide: BorderSide.none,
+                ),
+                filled: true,
+                fillColor: Colors.grey[200],
+                contentPadding: const EdgeInsets.symmetric(
+                  horizontal: 16,
+                  vertical: 8,
+                ),
+              ),
+              maxLines: null,
+              onSubmitted: (_) => onSend(),
+            ),
+          ),
+          const SizedBox(width: 8),
+          IconButton(
+            icon: const Icon(Icons.send),
+            color: Theme.of(context).primaryColor,
+            onPressed: onSend,
+          ),
+        ],
+      ),
+    );
+  }
+}

client-mobile/lib/features/chat/presentation/pages/chats_page.dart

@@ -0,0 +1,35 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import '../bloc/chat_bloc.dart';
+import '../bloc/chat_state.dart';
+
+class ChatsPage extends StatelessWidget {
+  const ChatsPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<ChatBloc, ChatState>(
+      builder: (context, state) {
+        return state.when(
+          initial: () => const Center(child: CircularProgressIndicator()),
+          loading: () => const Center(child: CircularProgressIndicator()),
+          chatsLoaded: (_) => const Center(
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                Icon(Icons.chat_bubble_outline, size: 64, color: Colors.grey),
+                SizedBox(height: 16),
+                Text('У вас пока нет чатов'),
+              ],
+            ),
+          ),
+          chatSelected: (_, __) => const Center(child: Text('Chat selected')),
+          messagesLoaded: (_) => const Center(child: Text('Messages loaded')),
+          messageSent: () => const Center(child: Text('Message sent')),
+          error: (message) => Center(child: Text('Ошибка: $message')),
+        );
+      },
+    );
+  }
+}
+

client-mobile/lib/features/profile/domain/entities/profile.dart

@@ -0,0 +1,21 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'profile.freezed.dart';
+// part 'profile.g.dart';
+
+@freezed
+class Profile with _$Profile {
+  const factory Profile({
+    required String id,
+    required String userId,
+    String? bio,
+    String? avatarUrl,
+    String? phoneNumber,
+    String? email,
+    DateTime? lastSeen,
+    bool? isOnline,
+    String? status,
+  }) = _Profile;
+
+  // factory Profile.fromJson(Map<String, dynamic> json) => _$ProfileFromJson(json);
+}

client-mobile/lib/features/profile/domain/entities/profile.freezed.dart

@@ -0,0 +1,298 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'profile.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$Profile {
+  String get id => throw _privateConstructorUsedError;
+  String get userId => throw _privateConstructorUsedError;
+  String? get bio => throw _privateConstructorUsedError;
+  String? get avatarUrl => throw _privateConstructorUsedError;
+  String? get phoneNumber => throw _privateConstructorUsedError;
+  String? get email => throw _privateConstructorUsedError;
+  DateTime? get lastSeen => throw _privateConstructorUsedError;
+  bool? get isOnline => throw _privateConstructorUsedError;
+  String? get status => throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $ProfileCopyWith<Profile> get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $ProfileCopyWith<$Res> {
+  factory $ProfileCopyWith(Profile value, $Res Function(Profile) then) =
+      _$ProfileCopyWithImpl<$Res, Profile>;
+  @useResult
+  $Res call(
+      {String id,
+      String userId,
+      String? bio,
+      String? avatarUrl,
+      String? phoneNumber,
+      String? email,
+      DateTime? lastSeen,
+      bool? isOnline,
+      String? status});
+}
+
+/// @nodoc
+class _$ProfileCopyWithImpl<$Res, $Val extends Profile>
+    implements $ProfileCopyWith<$Res> {
+  _$ProfileCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? userId = null,
+    Object? bio = freezed,
+    Object? avatarUrl = freezed,
+    Object? phoneNumber = freezed,
+    Object? email = freezed,
+    Object? lastSeen = freezed,
+    Object? isOnline = freezed,
+    Object? status = freezed,
+  }) {
+    return _then(_value.copyWith(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      userId: null == userId
+          ? _value.userId
+          : userId // ignore: cast_nullable_to_non_nullable
+              as String,
+      bio: freezed == bio
+          ? _value.bio
+          : bio // ignore: cast_nullable_to_non_nullable
+              as String?,
+      avatarUrl: freezed == avatarUrl
+          ? _value.avatarUrl
+          : avatarUrl // ignore: cast_nullable_to_non_nullable
+              as String?,
+      phoneNumber: freezed == phoneNumber
+          ? _value.phoneNumber
+          : phoneNumber // ignore: cast_nullable_to_non_nullable
+              as String?,
+      email: freezed == email
+          ? _value.email
+          : email // ignore: cast_nullable_to_non_nullable
+              as String?,
+      lastSeen: freezed == lastSeen
+          ? _value.lastSeen
+          : lastSeen // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      isOnline: freezed == isOnline
+          ? _value.isOnline
+          : isOnline // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      status: freezed == status
+          ? _value.status
+          : status // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ) as $Val);
+  }
+}
+
+/// @nodoc
+abstract class _$$ProfileImplCopyWith<$Res> implements $ProfileCopyWith<$Res> {
+  factory _$$ProfileImplCopyWith(
+          _$ProfileImpl value, $Res Function(_$ProfileImpl) then) =
+      __$$ProfileImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {String id,
+      String userId,
+      String? bio,
+      String? avatarUrl,
+      String? phoneNumber,
+      String? email,
+      DateTime? lastSeen,
+      bool? isOnline,
+      String? status});
+}
+
+/// @nodoc
+class __$$ProfileImplCopyWithImpl<$Res>
+    extends _$ProfileCopyWithImpl<$Res, _$ProfileImpl>
+    implements _$$ProfileImplCopyWith<$Res> {
+  __$$ProfileImplCopyWithImpl(
+      _$ProfileImpl _value, $Res Function(_$ProfileImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? userId = null,
+    Object? bio = freezed,
+    Object? avatarUrl = freezed,
+    Object? phoneNumber = freezed,
+    Object? email = freezed,
+    Object? lastSeen = freezed,
+    Object? isOnline = freezed,
+    Object? status = freezed,
+  }) {
+    return _then(_$ProfileImpl(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      userId: null == userId
+          ? _value.userId
+          : userId // ignore: cast_nullable_to_non_nullable
+              as String,
+      bio: freezed == bio
+          ? _value.bio
+          : bio // ignore: cast_nullable_to_non_nullable
+              as String?,
+      avatarUrl: freezed == avatarUrl
+          ? _value.avatarUrl
+          : avatarUrl // ignore: cast_nullable_to_non_nullable
+              as String?,
+      phoneNumber: freezed == phoneNumber
+          ? _value.phoneNumber
+          : phoneNumber // ignore: cast_nullable_to_non_nullable
+              as String?,
+      email: freezed == email
+          ? _value.email
+          : email // ignore: cast_nullable_to_non_nullable
+              as String?,
+      lastSeen: freezed == lastSeen
+          ? _value.lastSeen
+          : lastSeen // ignore: cast_nullable_to_non_nullable
+              as DateTime?,
+      isOnline: freezed == isOnline
+          ? _value.isOnline
+          : isOnline // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      status: freezed == status
+          ? _value.status
+          : status // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$ProfileImpl implements _Profile {
+  const _$ProfileImpl(
+      {required this.id,
+      required this.userId,
+      this.bio,
+      this.avatarUrl,
+      this.phoneNumber,
+      this.email,
+      this.lastSeen,
+      this.isOnline,
+      this.status});
+
+  @override
+  final String id;
+  @override
+  final String userId;
+  @override
+  final String? bio;
+  @override
+  final String? avatarUrl;
+  @override
+  final String? phoneNumber;
+  @override
+  final String? email;
+  @override
+  final DateTime? lastSeen;
+  @override
+  final bool? isOnline;
+  @override
+  final String? status;
+
+  @override
+  String toString() {
+    return 'Profile(id: $id, userId: $userId, bio: $bio, avatarUrl: $avatarUrl, phoneNumber: $phoneNumber, email: $email, lastSeen: $lastSeen, isOnline: $isOnline, status: $status)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$ProfileImpl &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.userId, userId) || other.userId == userId) &&
+            (identical(other.bio, bio) || other.bio == bio) &&
+            (identical(other.avatarUrl, avatarUrl) ||
+                other.avatarUrl == avatarUrl) &&
+            (identical(other.phoneNumber, phoneNumber) ||
+                other.phoneNumber == phoneNumber) &&
+            (identical(other.email, email) || other.email == email) &&
+            (identical(other.lastSeen, lastSeen) ||
+                other.lastSeen == lastSeen) &&
+            (identical(other.isOnline, isOnline) ||
+                other.isOnline == isOnline) &&
+            (identical(other.status, status) || other.status == status));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, id, userId, bio, avatarUrl,
+      phoneNumber, email, lastSeen, isOnline, status);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$ProfileImplCopyWith<_$ProfileImpl> get copyWith =>
+      __$$ProfileImplCopyWithImpl<_$ProfileImpl>(this, _$identity);
+}
+
+abstract class _Profile implements Profile {
+  const factory _Profile(
+      {required final String id,
+      required final String userId,
+      final String? bio,
+      final String? avatarUrl,
+      final String? phoneNumber,
+      final String? email,
+      final DateTime? lastSeen,
+      final bool? isOnline,
+      final String? status}) = _$ProfileImpl;
+
+  @override
+  String get id;
+  @override
+  String get userId;
+  @override
+  String? get bio;
+  @override
+  String? get avatarUrl;
+  @override
+  String? get phoneNumber;
+  @override
+  String? get email;
+  @override
+  DateTime? get lastSeen;
+  @override
+  bool? get isOnline;
+  @override
+  String? get status;
+  @override
+  @JsonKey(ignore: true)
+  _$$ProfileImplCopyWith<_$ProfileImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

client-mobile/lib/features/profile/domain/repositories/profile_repository.dart

@@ -0,0 +1,9 @@
+import '../../../../core/errors/result.dart';
+import '../entities/profile.dart';
+
+abstract class ProfileRepository {
+  Future<Result<Profile>> getProfile(String userId);
+  Future<Result<Profile>> updateProfile(Map<String, dynamic> data);
+  Future<Result<void>> uploadAvatar(String imagePath);
+  Future<Result<void>> updateStatus(String status);
+}

client-mobile/lib/features/profile/domain/usecases/get_profile.dart

@@ -0,0 +1,13 @@
+import '../../../../core/errors/result.dart';
+import '../repositories/profile_repository.dart';
+import '../entities/profile.dart';
+
+class GetProfileUseCase {
+  final ProfileRepository _repository;
+
+  GetProfileUseCase(this._repository);
+
+  Future<Result<Profile>> execute(String userId) {
+    return _repository.getProfile(userId);
+  }
+}

client-mobile/lib/features/settings/data/datasources/settings_local_datasource.dart

@@ -0,0 +1,57 @@
+import 'dart:convert';
+import 'package:shared_preferences/shared_preferences.dart';
+import '../../../../core/constants/storage_keys.dart';
+import '../../domain/entities/server_config.dart';
+
+abstract class SettingsLocalDataSource {
+  Future<String?> getApiUrl();
+  Future<void> saveApiUrl(String url);
+  Future<String?> getLanguageCode();
+  Future<void> saveLanguageCode(String code);
+  Future<ServerConfig?> getServerConfig();
+  Future<void> saveServerConfig(ServerConfig config);
+}
+
+class SettingsLocalDataSourceImpl implements SettingsLocalDataSource {
+  final SharedPreferences _prefs;
+
+  SettingsLocalDataSourceImpl(this._prefs);
+
+  @override
+  Future<String?> getApiUrl() async {
+    return _prefs.getString(StorageKeys.apiUrl);
+  }
+
+  @override
+  Future<void> saveApiUrl(String url) async {
+    await _prefs.setString(StorageKeys.apiUrl, url);
+  }
+
+  @override
+  Future<String?> getLanguageCode() async {
+    return _prefs.getString(StorageKeys.languageCode);
+  }
+
+  @override
+  Future<void> saveLanguageCode(String code) async {
+    await _prefs.setString(StorageKeys.languageCode, code);
+  }
+
+  @override
+  Future<ServerConfig?> getServerConfig() async {
+    final jsonString = _prefs.getString(StorageKeys.serverConfig);
+    if (jsonString == null) return null;
+    try {
+      final json = jsonDecode(jsonString) as Map<String, dynamic>;
+      return ServerConfig.fromJson(json);
+    } catch (_) {
+      return null;
+    }
+  }
+
+  @override
+  Future<void> saveServerConfig(ServerConfig config) async {
+    final jsonString = jsonEncode(config.toJson());
+    await _prefs.setString(StorageKeys.serverConfig, jsonString);
+  }
+}

client-mobile/lib/features/settings/data/datasources/settings_remote_datasource.dart

@@ -0,0 +1,30 @@
+import 'package:dio/dio.dart';
+import '../../../../core/errors/errors.dart';
+import '../../../../core/errors/result.dart';
+import '../../domain/entities/server_config.dart';
+
+abstract class SettingsRemoteDataSource {
+  Future<Result<ServerConfig>> getServerConfig();
+}
+
+class SettingsRemoteDataSourceImpl implements SettingsRemoteDataSource {
+  final Dio _dio;
+
+  SettingsRemoteDataSourceImpl(this._dio);
+
+  @override
+  Future<Result<ServerConfig>> getServerConfig() async {
+    try {
+      final response = await _dio.get('/api/config');
+      if (response.statusCode == 200) {
+        final config = ServerConfig.fromJson(response.data as Map<String, dynamic>);
+        return Result.success(config);
+      }
+      return Result.failure(AppError.server(statusCode: 500, message: 'Failed to load config'));
+    } on DioException catch (e) {
+      return Result.failure(AppError.network(message: e.message));
+    } catch (e) {
+      return Result.failure(const AppError.unknown(message: 'Unknown error'));
+    }
+  }
+}

client-mobile/lib/features/settings/data/repositories/settings_repository_impl.dart

@@ -0,0 +1,83 @@
+import '../../../../core/errors/errors.dart';
+import '../../../../core/errors/result.dart';
+import '../../domain/entities/server_config.dart';
+import '../../domain/repositories/settings_repository.dart';
+import '../datasources/settings_local_datasource.dart';
+import '../datasources/settings_remote_datasource.dart';
+
+class SettingsRepositoryImpl implements SettingsRepository {
+  final SettingsLocalDataSource _local;
+  final SettingsRemoteDataSource _remote;
+
+  SettingsRepositoryImpl(this._local, this._remote);
+
+  @override
+  Future<String?> getApiUrl() => _local.getApiUrl();
+
+  @override
+  Future<Result<void>> saveApiUrl(String url) async {
+    try {
+      await _local.saveApiUrl(url);
+      return const Result.success(null);
+    } catch (e) {
+      return const Result.failure(AppError.unknown(message: 'Failed to save API URL'));
+    }
+  }
+
+  @override
+  Future<String?> getLanguageCode() => _local.getLanguageCode();
+
+  @override
+  Future<Result<void>> saveLanguageCode(String code) async {
+    try {
+      await _local.saveLanguageCode(code);
+      return const Result.success(null);
+    } catch (e) {
+      return const Result.failure(AppError.unknown(message: 'Failed to save language'));
+    }
+  }
+
+  @override
+  Future<Result<ServerConfig>> getServerConfig() async {
+    final local = await _local.getServerConfig();
+    if (local != null) {
+      return Result.success(local);
+    }
+    return refreshServerConfig();
+  }
+
+  @override
+  Future<Result<ServerConfig>> refreshServerConfig() async {
+    final result = await _remote.getServerConfig();
+    result.when(
+      onSuccess: (config) async => await _local.saveServerConfig(config),
+      onFailure: (_) {},
+    );
+    return result;
+  }
+
+  @override
+  Future<Result<bool>> getNotificationsEnabled() async {
+    return const Result.success(true);
+  }
+
+  @override
+  Future<Result<void>> setNotificationsEnabled(bool enabled) async {
+    return const Result.success(null);
+  }
+
+  @override
+  Future<Result<bool>> getDarkModeEnabled() async {
+    return const Result.success(false);
+  }
+
+  @override
+  Future<Result<void>> setDarkModeEnabled(bool enabled) async {
+    return const Result.success(null);
+  }
+
+  @override
+  Future<Result<void>> clearAllData() async {
+    return const Result.success(null);
+  }
+}

client-mobile/lib/features/settings/domain/entities/server_config.dart

@@ -0,0 +1,144 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'server_config.freezed.dart';
+part 'server_config.g.dart';
+
+@freezed
+class ServerConfig with _$ServerConfig {
+  const factory ServerConfig({
+    required SystemConfig system,
+    required StoriesConfig stories,
+    required ChatsModuleConfig chats,
+    required MessagesConfig messages,
+    required WebRtcConfig webRtc,
+    required KlipyConfig klipy,
+    required ImportConfig import,
+    required FederationConfig federation,
+  }) = _ServerConfig;
+
+  factory ServerConfig.fromJson(Map<String, dynamic> json) =>
+      _$ServerConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class SystemConfig with _$SystemConfig {
+  const factory SystemConfig({
+    required String domainUrl,
+    required bool enableRegistration,
+  }) = _SystemConfig;
+
+  factory SystemConfig.fromJson(Map<String, dynamic> json) =>
+      _$SystemConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class StoriesConfig with _$StoriesConfig {
+  const factory StoriesConfig({
+    required bool enabled,
+    required int maxStoriesPerPeriod,
+    required int storyLifetimeHours,
+    required bool textStoriesEnabled,
+    required int textStoryDurationSeconds,
+    required int mediaStoryMaxDurationSeconds,
+    required int maxMediaSizeBytes,
+  }) = _StoriesConfig;
+
+  factory StoriesConfig.fromJson(Map<String, dynamic> json) =>
+      _$StoriesConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class ChatsModuleConfig with _$ChatsModuleConfig {
+  const factory ChatsModuleConfig({
+    required bool supportGroups,
+    required int maxGroupParticipants,
+    required bool allowChatToGroupConversion,
+    required bool enableFolders,
+  }) = _ChatsModuleConfig;
+
+  factory ChatsModuleConfig.fromJson(Map<String, dynamic> json) =>
+      _$ChatsModuleConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class MessagesConfig with _$MessagesConfig {
+  const factory MessagesConfig({
+    required int dailyMessageLimitPerUser,
+    required int chatMessageLimit,
+    required bool allowMedia,
+    required int maxMediaSizeBytes,
+    required List<String> allowedMediaTypes,
+    required bool allowVoiceMessages,
+    required bool allowForwarding,
+    required bool allowReactions,
+    required bool allowReplies,
+    required bool allowQuoting,
+    required bool allowMessageDeletion,
+    required bool forbidCopying,
+    required bool allowLinks,
+    required bool allowPolls,
+    required bool allowPinning,
+  }) = _MessagesConfig;
+
+  factory MessagesConfig.fromJson(Map<String, dynamic> json) =>
+      _$MessagesConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class WebRtcConfig with _$WebRtcConfig {
+  const factory WebRtcConfig({
+    required bool enabled,
+    required bool enableVoiceCalls,
+    required bool enableVideoCalls,
+    required bool enableScreenSharing,
+    required String turnHost,
+    required int turnPort,
+  }) = _WebRtcConfig;
+
+  factory WebRtcConfig.fromJson(Map<String, dynamic> json) =>
+      _$WebRtcConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class KlipyConfig with _$KlipyConfig {
+  const factory KlipyConfig({
+    required bool enabled,
+    required String appName,
+  }) = _KlipyConfig;
+
+  factory KlipyConfig.fromJson(Map<String, dynamic> json) =>
+      _$KlipyConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class ImportConfig with _$ImportConfig {
+  const factory ImportConfig({
+    required bool enabled,
+  }) = _ImportConfig;
+
+  factory ImportConfig.fromJson(Map<String, dynamic> json) =>
+      _$ImportConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class FederationConfig with _$FederationConfig {
+  const factory FederationConfig({
+    required bool enabled,
+    required String serverDescription,
+    required List<FederationDomainConfig> allowedDomains,
+  }) = _FederationConfig;
+
+  factory FederationConfig.fromJson(Map<String, dynamic> json) =>
+      _$FederationConfigFromJson(json);
+}
+
+@Freezed(toJson: true)
+class FederationDomainConfig with _$FederationDomainConfig {
+  const factory FederationDomainConfig({
+    required String domain,
+    required bool enabled,
+  }) = _FederationDomainConfig;
+
+  factory FederationDomainConfig.fromJson(Map<String, dynamic> json) =>
+      _$FederationDomainConfigFromJson(json);
+}

client-mobile/lib/features/settings/domain/entities/server_config.g.dart

@@ -0,0 +1,204 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'server_config.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$ServerConfigImpl _$$ServerConfigImplFromJson(Map<String, dynamic> json) =>
+    _$ServerConfigImpl(
+      system: SystemConfig.fromJson(json['system'] as Map<String, dynamic>),
+      stories: StoriesConfig.fromJson(json['stories'] as Map<String, dynamic>),
+      chats: ChatsModuleConfig.fromJson(json['chats'] as Map<String, dynamic>),
+      messages:
+          MessagesConfig.fromJson(json['messages'] as Map<String, dynamic>),
+      webRtc: WebRtcConfig.fromJson(json['webRtc'] as Map<String, dynamic>),
+      klipy: KlipyConfig.fromJson(json['klipy'] as Map<String, dynamic>),
+      import: ImportConfig.fromJson(json['import'] as Map<String, dynamic>),
+      federation:
+          FederationConfig.fromJson(json['federation'] as Map<String, dynamic>),
+    );
+
+Map<String, dynamic> _$$ServerConfigImplToJson(_$ServerConfigImpl instance) =>
+    <String, dynamic>{
+      'system': instance.system,
+      'stories': instance.stories,
+      'chats': instance.chats,
+      'messages': instance.messages,
+      'webRtc': instance.webRtc,
+      'klipy': instance.klipy,
+      'import': instance.import,
+      'federation': instance.federation,
+    };
+
+_$SystemConfigImpl _$$SystemConfigImplFromJson(Map<String, dynamic> json) =>
+    _$SystemConfigImpl(
+      domainUrl: json['domainUrl'] as String,
+      enableRegistration: json['enableRegistration'] as bool,
+    );
+
+Map<String, dynamic> _$$SystemConfigImplToJson(_$SystemConfigImpl instance) =>
+    <String, dynamic>{
+      'domainUrl': instance.domainUrl,
+      'enableRegistration': instance.enableRegistration,
+    };
+
+_$StoriesConfigImpl _$$StoriesConfigImplFromJson(Map<String, dynamic> json) =>
+    _$StoriesConfigImpl(
+      enabled: json['enabled'] as bool,
+      maxStoriesPerPeriod: (json['maxStoriesPerPeriod'] as num).toInt(),
+      storyLifetimeHours: (json['storyLifetimeHours'] as num).toInt(),
+      textStoriesEnabled: json['textStoriesEnabled'] as bool,
+      textStoryDurationSeconds:
+          (json['textStoryDurationSeconds'] as num).toInt(),
+      mediaStoryMaxDurationSeconds:
+          (json['mediaStoryMaxDurationSeconds'] as num).toInt(),
+      maxMediaSizeBytes: (json['maxMediaSizeBytes'] as num).toInt(),
+    );
+
+Map<String, dynamic> _$$StoriesConfigImplToJson(_$StoriesConfigImpl instance) =>
+    <String, dynamic>{
+      'enabled': instance.enabled,
+      'maxStoriesPerPeriod': instance.maxStoriesPerPeriod,
+      'storyLifetimeHours': instance.storyLifetimeHours,
+      'textStoriesEnabled': instance.textStoriesEnabled,
+      'textStoryDurationSeconds': instance.textStoryDurationSeconds,
+      'mediaStoryMaxDurationSeconds': instance.mediaStoryMaxDurationSeconds,
+      'maxMediaSizeBytes': instance.maxMediaSizeBytes,
+    };
+
+_$ChatsModuleConfigImpl _$$ChatsModuleConfigImplFromJson(
+        Map<String, dynamic> json) =>
+    _$ChatsModuleConfigImpl(
+      supportGroups: json['supportGroups'] as bool,
+      maxGroupParticipants: (json['maxGroupParticipants'] as num).toInt(),
+      allowChatToGroupConversion: json['allowChatToGroupConversion'] as bool,
+      enableFolders: json['enableFolders'] as bool,
+    );
+
+Map<String, dynamic> _$$ChatsModuleConfigImplToJson(
+        _$ChatsModuleConfigImpl instance) =>
+    <String, dynamic>{
+      'supportGroups': instance.supportGroups,
+      'maxGroupParticipants': instance.maxGroupParticipants,
+      'allowChatToGroupConversion': instance.allowChatToGroupConversion,
+      'enableFolders': instance.enableFolders,
+    };
+
+_$MessagesConfigImpl _$$MessagesConfigImplFromJson(Map<String, dynamic> json) =>
+    _$MessagesConfigImpl(
+      dailyMessageLimitPerUser:
+          (json['dailyMessageLimitPerUser'] as num).toInt(),
+      chatMessageLimit: (json['chatMessageLimit'] as num).toInt(),
+      allowMedia: json['allowMedia'] as bool,
+      maxMediaSizeBytes: (json['maxMediaSizeBytes'] as num).toInt(),
+      allowedMediaTypes: (json['allowedMediaTypes'] as List<dynamic>)
+          .map((e) => e as String)
+          .toList(),
+      allowVoiceMessages: json['allowVoiceMessages'] as bool,
+      allowForwarding: json['allowForwarding'] as bool,
+      allowReactions: json['allowReactions'] as bool,
+      allowReplies: json['allowReplies'] as bool,
+      allowQuoting: json['allowQuoting'] as bool,
+      allowMessageDeletion: json['allowMessageDeletion'] as bool,
+      forbidCopying: json['forbidCopying'] as bool,
+      allowLinks: json['allowLinks'] as bool,
+      allowPolls: json['allowPolls'] as bool,
+      allowPinning: json['allowPinning'] as bool,
+    );
+
+Map<String, dynamic> _$$MessagesConfigImplToJson(
+        _$MessagesConfigImpl instance) =>
+    <String, dynamic>{
+      'dailyMessageLimitPerUser': instance.dailyMessageLimitPerUser,
+      'chatMessageLimit': instance.chatMessageLimit,
+      'allowMedia': instance.allowMedia,
+      'maxMediaSizeBytes': instance.maxMediaSizeBytes,
+      'allowedMediaTypes': instance.allowedMediaTypes,
+      'allowVoiceMessages': instance.allowVoiceMessages,
+      'allowForwarding': instance.allowForwarding,
+      'allowReactions': instance.allowReactions,
+      'allowReplies': instance.allowReplies,
+      'allowQuoting': instance.allowQuoting,
+      'allowMessageDeletion': instance.allowMessageDeletion,
+      'forbidCopying': instance.forbidCopying,
+      'allowLinks': instance.allowLinks,
+      'allowPolls': instance.allowPolls,
+      'allowPinning': instance.allowPinning,
+    };
+
+_$WebRtcConfigImpl _$$WebRtcConfigImplFromJson(Map<String, dynamic> json) =>
+    _$WebRtcConfigImpl(
+      enabled: json['enabled'] as bool,
+      enableVoiceCalls: json['enableVoiceCalls'] as bool,
+      enableVideoCalls: json['enableVideoCalls'] as bool,
+      enableScreenSharing: json['enableScreenSharing'] as bool,
+      turnHost: json['turnHost'] as String,
+      turnPort: (json['turnPort'] as num).toInt(),
+    );
+
+Map<String, dynamic> _$$WebRtcConfigImplToJson(_$WebRtcConfigImpl instance) =>
+    <String, dynamic>{
+      'enabled': instance.enabled,
+      'enableVoiceCalls': instance.enableVoiceCalls,
+      'enableVideoCalls': instance.enableVideoCalls,
+      'enableScreenSharing': instance.enableScreenSharing,
+      'turnHost': instance.turnHost,
+      'turnPort': instance.turnPort,
+    };
+
+_$KlipyConfigImpl _$$KlipyConfigImplFromJson(Map<String, dynamic> json) =>
+    _$KlipyConfigImpl(
+      enabled: json['enabled'] as bool,
+      appName: json['appName'] as String,
+    );
+
+Map<String, dynamic> _$$KlipyConfigImplToJson(_$KlipyConfigImpl instance) =>
+    <String, dynamic>{
+      'enabled': instance.enabled,
+      'appName': instance.appName,
+    };
+
+_$ImportConfigImpl _$$ImportConfigImplFromJson(Map<String, dynamic> json) =>
+    _$ImportConfigImpl(
+      enabled: json['enabled'] as bool,
+    );
+
+Map<String, dynamic> _$$ImportConfigImplToJson(_$ImportConfigImpl instance) =>
+    <String, dynamic>{
+      'enabled': instance.enabled,
+    };
+
+_$FederationConfigImpl _$$FederationConfigImplFromJson(
+        Map<String, dynamic> json) =>
+    _$FederationConfigImpl(
+      enabled: json['enabled'] as bool,
+      serverDescription: json['serverDescription'] as String,
+      allowedDomains: (json['allowedDomains'] as List<dynamic>)
+          .map(
+              (e) => FederationDomainConfig.fromJson(e as Map<String, dynamic>))
+          .toList(),
+    );
+
+Map<String, dynamic> _$$FederationConfigImplToJson(
+        _$FederationConfigImpl instance) =>
+    <String, dynamic>{
+      'enabled': instance.enabled,
+      'serverDescription': instance.serverDescription,
+      'allowedDomains': instance.allowedDomains,
+    };
+
+_$FederationDomainConfigImpl _$$FederationDomainConfigImplFromJson(
+        Map<String, dynamic> json) =>
+    _$FederationDomainConfigImpl(
+      domain: json['domain'] as String,
+      enabled: json['enabled'] as bool,
+    );
+
+Map<String, dynamic> _$$FederationDomainConfigImplToJson(
+        _$FederationDomainConfigImpl instance) =>
+    <String, dynamic>{
+      'domain': instance.domain,
+      'enabled': instance.enabled,
+    };

client-mobile/lib/features/settings/domain/entities/settings.dart

@@ -0,0 +1,18 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'settings.freezed.dart';
+// part 'settings.g.dart';
+
+@freezed
+class AppSettings with _$AppSettings {
+  const factory AppSettings({
+    required bool notificationsEnabled,
+    required bool darkModeEnabled,
+    required String language,
+    bool? soundEnabled,
+    bool? vibrationEnabled,
+    String? themeColor,
+  }) = _AppSettings;
+
+  // factory AppSettings.fromJson(Map<String, dynamic> json) => _$AppSettingsFromJson(json);
+}

client-mobile/lib/features/settings/domain/entities/settings.freezed.dart

@@ -0,0 +1,243 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'settings.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$AppSettings {
+  bool get notificationsEnabled => throw _privateConstructorUsedError;
+  bool get darkModeEnabled => throw _privateConstructorUsedError;
+  String get language => throw _privateConstructorUsedError;
+  bool? get soundEnabled => throw _privateConstructorUsedError;
+  bool? get vibrationEnabled => throw _privateConstructorUsedError;
+  String? get themeColor => throw _privateConstructorUsedError;
+
+  @JsonKey(ignore: true)
+  $AppSettingsCopyWith<AppSettings> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $AppSettingsCopyWith<$Res> {
+  factory $AppSettingsCopyWith(
+          AppSettings value, $Res Function(AppSettings) then) =
+      _$AppSettingsCopyWithImpl<$Res, AppSettings>;
+  @useResult
+  $Res call(
+      {bool notificationsEnabled,
+      bool darkModeEnabled,
+      String language,
+      bool? soundEnabled,
+      bool? vibrationEnabled,
+      String? themeColor});
+}
+
+/// @nodoc
+class _$AppSettingsCopyWithImpl<$Res, $Val extends AppSettings>
+    implements $AppSettingsCopyWith<$Res> {
+  _$AppSettingsCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? notificationsEnabled = null,
+    Object? darkModeEnabled = null,
+    Object? language = null,
+    Object? soundEnabled = freezed,
+    Object? vibrationEnabled = freezed,
+    Object? themeColor = freezed,
+  }) {
+    return _then(_value.copyWith(
+      notificationsEnabled: null == notificationsEnabled
+          ? _value.notificationsEnabled
+          : notificationsEnabled // ignore: cast_nullable_to_non_nullable
+              as bool,
+      darkModeEnabled: null == darkModeEnabled
+          ? _value.darkModeEnabled
+          : darkModeEnabled // ignore: cast_nullable_to_non_nullable
+              as bool,
+      language: null == language
+          ? _value.language
+          : language // ignore: cast_nullable_to_non_nullable
+              as String,
+      soundEnabled: freezed == soundEnabled
+          ? _value.soundEnabled
+          : soundEnabled // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      vibrationEnabled: freezed == vibrationEnabled
+          ? _value.vibrationEnabled
+          : vibrationEnabled // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      themeColor: freezed == themeColor
+          ? _value.themeColor
+          : themeColor // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ) as $Val);
+  }
+}
+
+/// @nodoc
+abstract class _$$AppSettingsImplCopyWith<$Res>
+    implements $AppSettingsCopyWith<$Res> {
+  factory _$$AppSettingsImplCopyWith(
+          _$AppSettingsImpl value, $Res Function(_$AppSettingsImpl) then) =
+      __$$AppSettingsImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {bool notificationsEnabled,
+      bool darkModeEnabled,
+      String language,
+      bool? soundEnabled,
+      bool? vibrationEnabled,
+      String? themeColor});
+}
+
+/// @nodoc
+class __$$AppSettingsImplCopyWithImpl<$Res>
+    extends _$AppSettingsCopyWithImpl<$Res, _$AppSettingsImpl>
+    implements _$$AppSettingsImplCopyWith<$Res> {
+  __$$AppSettingsImplCopyWithImpl(
+      _$AppSettingsImpl _value, $Res Function(_$AppSettingsImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? notificationsEnabled = null,
+    Object? darkModeEnabled = null,
+    Object? language = null,
+    Object? soundEnabled = freezed,
+    Object? vibrationEnabled = freezed,
+    Object? themeColor = freezed,
+  }) {
+    return _then(_$AppSettingsImpl(
+      notificationsEnabled: null == notificationsEnabled
+          ? _value.notificationsEnabled
+          : notificationsEnabled // ignore: cast_nullable_to_non_nullable
+              as bool,
+      darkModeEnabled: null == darkModeEnabled
+          ? _value.darkModeEnabled
+          : darkModeEnabled // ignore: cast_nullable_to_non_nullable
+              as bool,
+      language: null == language
+          ? _value.language
+          : language // ignore: cast_nullable_to_non_nullable
+              as String,
+      soundEnabled: freezed == soundEnabled
+          ? _value.soundEnabled
+          : soundEnabled // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      vibrationEnabled: freezed == vibrationEnabled
+          ? _value.vibrationEnabled
+          : vibrationEnabled // ignore: cast_nullable_to_non_nullable
+              as bool?,
+      themeColor: freezed == themeColor
+          ? _value.themeColor
+          : themeColor // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$AppSettingsImpl implements _AppSettings {
+  const _$AppSettingsImpl(
+      {required this.notificationsEnabled,
+      required this.darkModeEnabled,
+      required this.language,
+      this.soundEnabled,
+      this.vibrationEnabled,
+      this.themeColor});
+
+  @override
+  final bool notificationsEnabled;
+  @override
+  final bool darkModeEnabled;
+  @override
+  final String language;
+  @override
+  final bool? soundEnabled;
+  @override
+  final bool? vibrationEnabled;
+  @override
+  final String? themeColor;
+
+  @override
+  String toString() {
+    return 'AppSettings(notificationsEnabled: $notificationsEnabled, darkModeEnabled: $darkModeEnabled, language: $language, soundEnabled: $soundEnabled, vibrationEnabled: $vibrationEnabled, themeColor: $themeColor)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$AppSettingsImpl &&
+            (identical(other.notificationsEnabled, notificationsEnabled) ||
+                other.notificationsEnabled == notificationsEnabled) &&
+            (identical(other.darkModeEnabled, darkModeEnabled) ||
+                other.darkModeEnabled == darkModeEnabled) &&
+            (identical(other.language, language) ||
+                other.language == language) &&
+            (identical(other.soundEnabled, soundEnabled) ||
+                other.soundEnabled == soundEnabled) &&
+            (identical(other.vibrationEnabled, vibrationEnabled) ||
+                other.vibrationEnabled == vibrationEnabled) &&
+            (identical(other.themeColor, themeColor) ||
+                other.themeColor == themeColor));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, notificationsEnabled,
+      darkModeEnabled, language, soundEnabled, vibrationEnabled, themeColor);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$AppSettingsImplCopyWith<_$AppSettingsImpl> get copyWith =>
+      __$$AppSettingsImplCopyWithImpl<_$AppSettingsImpl>(this, _$identity);
+}
+
+abstract class _AppSettings implements AppSettings {
+  const factory _AppSettings(
+      {required final bool notificationsEnabled,
+      required final bool darkModeEnabled,
+      required final String language,
+      final bool? soundEnabled,
+      final bool? vibrationEnabled,
+      final String? themeColor}) = _$AppSettingsImpl;
+
+  @override
+  bool get notificationsEnabled;
+  @override
+  bool get darkModeEnabled;
+  @override
+  String get language;
+  @override
+  bool? get soundEnabled;
+  @override
+  bool? get vibrationEnabled;
+  @override
+  String? get themeColor;
+  @override
+  @JsonKey(ignore: true)
+  _$$AppSettingsImplCopyWith<_$AppSettingsImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

client-mobile/lib/features/settings/domain/repositories/settings_repository.dart

@@ -0,0 +1,16 @@
+import '../../../../core/errors/result.dart';
+import '../entities/server_config.dart';
+
+abstract class SettingsRepository {
+  Future<String?> getApiUrl();
+  Future<Result<void>> saveApiUrl(String url);
+  Future<String?> getLanguageCode();
+  Future<Result<void>> saveLanguageCode(String code);
+  Future<Result<ServerConfig>> getServerConfig();
+  Future<Result<void>> refreshServerConfig();
+  Future<Result<bool>> getNotificationsEnabled();
+  Future<Result<void>> setNotificationsEnabled(bool enabled);
+  Future<Result<bool>> getDarkModeEnabled();
+  Future<Result<void>> setDarkModeEnabled(bool enabled);
+  Future<Result<void>> clearAllData();
+}

client-mobile/lib/features/settings/domain/usecases/get_settings.dart

@@ -0,0 +1,13 @@
+import '../../../../core/errors/result.dart';
+import '../repositories/settings_repository.dart';
+
+class GetSettingsUseCase {
+  final SettingsRepository _repository;
+
+  GetSettingsUseCase(this._repository);
+
+  Future<Result<String?>> execute() async {
+    final language = await _repository.getLanguageCode();
+    return Result.success(language);
+  }
+}

client-mobile/lib/features/settings/presentation/bloc/settings_bloc.dart

@@ -0,0 +1,110 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import '../../domain/repositories/settings_repository.dart';
+import 'settings_event.dart';
+import 'settings_state.dart';
+
+class SettingsBloc extends Bloc<SettingsEvent, SettingsState> {
+  final SettingsRepository _repository;
+
+  SettingsBloc(this._repository) : super(const SettingsState.initial()) {
+    on<SettingsStarted>(_onStarted);
+    on<SettingsConfigRequested>(_onConfigRequested);
+    on<SettingsApiUrlChanged>(_onApiUrlChanged);
+    on<SettingsApiUrlSaved>(_onApiUrlSaved);
+    on<SettingsLanguageChanged>(_onLanguageChanged);
+    on<SettingsRefreshConfig>(_onRefreshConfig);
+  }
+
+  Future<void> _onStarted(SettingsStarted event, emit) async {
+    emit(const SettingsState.loading());
+    
+    final apiUrl = await _repository.getApiUrl() ?? '';
+    final languageCode = await _repository.getLanguageCode() ?? 'ru';
+    final configResult = await _repository.getServerConfig();
+    
+    configResult.when(
+      onSuccess: (config) {
+        emit(SettingsState.loaded(
+          apiUrl: apiUrl,
+          serverConfig: config,
+          languageCode: languageCode,
+        ));
+      },
+      onFailure: (error) {
+        emit(SettingsState.loaded(
+          apiUrl: apiUrl,
+          serverConfig: null,
+          languageCode: languageCode,
+          error: 'Failed to load server config',
+        ));
+      },
+    );
+  }
+
+  Future<void> _onConfigRequested(SettingsConfigRequested event, emit) async {
+    if (state is! SettingsLoaded) return;
+    final currentState = state as SettingsLoaded;
+    
+    emit(const SettingsState.loading());
+    final configResult = await _repository.getServerConfig();
+    
+    configResult.when(
+      onSuccess: (config) {
+        emit(SettingsState.loaded(
+          apiUrl: currentState.apiUrl,
+          serverConfig: config,
+          languageCode: currentState.languageCode,
+        ));
+      },
+      onFailure: (error) {
+        emit(SettingsState.loaded(
+          apiUrl: currentState.apiUrl,
+          serverConfig: null,
+          languageCode: currentState.languageCode,
+          error: 'Failed to refresh config',
+        ));
+      },
+    );
+  }
+
+  void _onApiUrlChanged(SettingsApiUrlChanged event, emit) {
+    if (state is! SettingsLoaded) return;
+    final currentState = state as SettingsLoaded;
+    emit(SettingsState.loaded(
+      apiUrl: event.url,
+      serverConfig: currentState.serverConfig,
+      languageCode: currentState.languageCode,
+    ));
+  }
+
+  Future<void> _onApiUrlSaved(SettingsApiUrlSaved event, emit) async {
+    if (state is! SettingsLoaded) return;
+    final currentState = state as SettingsLoaded;
+    
+    await _repository.saveApiUrl(event.url);
+    
+    emit(SettingsState.loaded(
+      apiUrl: event.url,
+      serverConfig: currentState.serverConfig,
+      languageCode: currentState.languageCode,
+    ));
+  }
+
+  Future<void> _onLanguageChanged(SettingsLanguageChanged event, emit) async {
+    if (state is! SettingsLoaded) return;
+    final currentState = state as SettingsLoaded;
+    
+    await _repository.saveLanguageCode(event.code);
+    
+    emit(SettingsState.loaded(
+      apiUrl: currentState.apiUrl,
+      serverConfig: currentState.serverConfig,
+      languageCode: event.code,
+    ));
+  }
+
+  Future<void> _onRefreshConfig(SettingsRefreshConfig event, emit) async {
+    add(const SettingsConfigRequested());
+    await Future.delayed(const Duration(milliseconds: 100));
+  }
+}

client-mobile/lib/features/settings/presentation/bloc/settings_event.dart

@@ -0,0 +1,13 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'settings_event.freezed.dart';
+
+@freezed
+class SettingsEvent with _$SettingsEvent {
+  const factory SettingsEvent.started() = SettingsStarted;
+  const factory SettingsEvent.configRequested() = SettingsConfigRequested;
+  const factory SettingsEvent.apiUrlChanged(String url) = SettingsApiUrlChanged;
+  const factory SettingsEvent.apiUrlSaved(String url) = SettingsApiUrlSaved;
+  const factory SettingsEvent.languageChanged(String code) = SettingsLanguageChanged;
+  const factory SettingsEvent.refreshConfig() = SettingsRefreshConfig;
+}

client-mobile/lib/features/settings/presentation/bloc/settings_event.freezed.dart

@@ -0,0 +1,962 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'settings_event.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$SettingsEvent {
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() started,
+    required TResult Function() configRequested,
+    required TResult Function(String url) apiUrlChanged,
+    required TResult Function(String url) apiUrlSaved,
+    required TResult Function(String code) languageChanged,
+    required TResult Function() refreshConfig,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? started,
+    TResult? Function()? configRequested,
+    TResult? Function(String url)? apiUrlChanged,
+    TResult? Function(String url)? apiUrlSaved,
+    TResult? Function(String code)? languageChanged,
+    TResult? Function()? refreshConfig,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? started,
+    TResult Function()? configRequested,
+    TResult Function(String url)? apiUrlChanged,
+    TResult Function(String url)? apiUrlSaved,
+    TResult Function(String code)? languageChanged,
+    TResult Function()? refreshConfig,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsStarted value) started,
+    required TResult Function(SettingsConfigRequested value) configRequested,
+    required TResult Function(SettingsApiUrlChanged value) apiUrlChanged,
+    required TResult Function(SettingsApiUrlSaved value) apiUrlSaved,
+    required TResult Function(SettingsLanguageChanged value) languageChanged,
+    required TResult Function(SettingsRefreshConfig value) refreshConfig,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsStarted value)? started,
+    TResult? Function(SettingsConfigRequested value)? configRequested,
+    TResult? Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult? Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult? Function(SettingsLanguageChanged value)? languageChanged,
+    TResult? Function(SettingsRefreshConfig value)? refreshConfig,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsStarted value)? started,
+    TResult Function(SettingsConfigRequested value)? configRequested,
+    TResult Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult Function(SettingsLanguageChanged value)? languageChanged,
+    TResult Function(SettingsRefreshConfig value)? refreshConfig,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $SettingsEventCopyWith<$Res> {
+  factory $SettingsEventCopyWith(
+          SettingsEvent value, $Res Function(SettingsEvent) then) =
+      _$SettingsEventCopyWithImpl<$Res, SettingsEvent>;
+}
+
+/// @nodoc
+class _$SettingsEventCopyWithImpl<$Res, $Val extends SettingsEvent>
+    implements $SettingsEventCopyWith<$Res> {
+  _$SettingsEventCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+}
+
+/// @nodoc
+abstract class _$$SettingsStartedImplCopyWith<$Res> {
+  factory _$$SettingsStartedImplCopyWith(_$SettingsStartedImpl value,
+          $Res Function(_$SettingsStartedImpl) then) =
+      __$$SettingsStartedImplCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class __$$SettingsStartedImplCopyWithImpl<$Res>
+    extends _$SettingsEventCopyWithImpl<$Res, _$SettingsStartedImpl>
+    implements _$$SettingsStartedImplCopyWith<$Res> {
+  __$$SettingsStartedImplCopyWithImpl(
+      _$SettingsStartedImpl _value, $Res Function(_$SettingsStartedImpl) _then)
+      : super(_value, _then);
+}
+
+/// @nodoc
+
+class _$SettingsStartedImpl implements SettingsStarted {
+  const _$SettingsStartedImpl();
+
+  @override
+  String toString() {
+    return 'SettingsEvent.started()';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is _$SettingsStartedImpl);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() started,
+    required TResult Function() configRequested,
+    required TResult Function(String url) apiUrlChanged,
+    required TResult Function(String url) apiUrlSaved,
+    required TResult Function(String code) languageChanged,
+    required TResult Function() refreshConfig,
+  }) {
+    return started();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? started,
+    TResult? Function()? configRequested,
+    TResult? Function(String url)? apiUrlChanged,
+    TResult? Function(String url)? apiUrlSaved,
+    TResult? Function(String code)? languageChanged,
+    TResult? Function()? refreshConfig,
+  }) {
+    return started?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? started,
+    TResult Function()? configRequested,
+    TResult Function(String url)? apiUrlChanged,
+    TResult Function(String url)? apiUrlSaved,
+    TResult Function(String code)? languageChanged,
+    TResult Function()? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (started != null) {
+      return started();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsStarted value) started,
+    required TResult Function(SettingsConfigRequested value) configRequested,
+    required TResult Function(SettingsApiUrlChanged value) apiUrlChanged,
+    required TResult Function(SettingsApiUrlSaved value) apiUrlSaved,
+    required TResult Function(SettingsLanguageChanged value) languageChanged,
+    required TResult Function(SettingsRefreshConfig value) refreshConfig,
+  }) {
+    return started(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsStarted value)? started,
+    TResult? Function(SettingsConfigRequested value)? configRequested,
+    TResult? Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult? Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult? Function(SettingsLanguageChanged value)? languageChanged,
+    TResult? Function(SettingsRefreshConfig value)? refreshConfig,
+  }) {
+    return started?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsStarted value)? started,
+    TResult Function(SettingsConfigRequested value)? configRequested,
+    TResult Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult Function(SettingsLanguageChanged value)? languageChanged,
+    TResult Function(SettingsRefreshConfig value)? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (started != null) {
+      return started(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsStarted implements SettingsEvent {
+  const factory SettingsStarted() = _$SettingsStartedImpl;
+}
+
+/// @nodoc
+abstract class _$$SettingsConfigRequestedImplCopyWith<$Res> {
+  factory _$$SettingsConfigRequestedImplCopyWith(
+          _$SettingsConfigRequestedImpl value,
+          $Res Function(_$SettingsConfigRequestedImpl) then) =
+      __$$SettingsConfigRequestedImplCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class __$$SettingsConfigRequestedImplCopyWithImpl<$Res>
+    extends _$SettingsEventCopyWithImpl<$Res, _$SettingsConfigRequestedImpl>
+    implements _$$SettingsConfigRequestedImplCopyWith<$Res> {
+  __$$SettingsConfigRequestedImplCopyWithImpl(
+      _$SettingsConfigRequestedImpl _value,
+      $Res Function(_$SettingsConfigRequestedImpl) _then)
+      : super(_value, _then);
+}
+
+/// @nodoc
+
+class _$SettingsConfigRequestedImpl implements SettingsConfigRequested {
+  const _$SettingsConfigRequestedImpl();
+
+  @override
+  String toString() {
+    return 'SettingsEvent.configRequested()';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$SettingsConfigRequestedImpl);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() started,
+    required TResult Function() configRequested,
+    required TResult Function(String url) apiUrlChanged,
+    required TResult Function(String url) apiUrlSaved,
+    required TResult Function(String code) languageChanged,
+    required TResult Function() refreshConfig,
+  }) {
+    return configRequested();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? started,
+    TResult? Function()? configRequested,
+    TResult? Function(String url)? apiUrlChanged,
+    TResult? Function(String url)? apiUrlSaved,
+    TResult? Function(String code)? languageChanged,
+    TResult? Function()? refreshConfig,
+  }) {
+    return configRequested?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? started,
+    TResult Function()? configRequested,
+    TResult Function(String url)? apiUrlChanged,
+    TResult Function(String url)? apiUrlSaved,
+    TResult Function(String code)? languageChanged,
+    TResult Function()? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (configRequested != null) {
+      return configRequested();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsStarted value) started,
+    required TResult Function(SettingsConfigRequested value) configRequested,
+    required TResult Function(SettingsApiUrlChanged value) apiUrlChanged,
+    required TResult Function(SettingsApiUrlSaved value) apiUrlSaved,
+    required TResult Function(SettingsLanguageChanged value) languageChanged,
+    required TResult Function(SettingsRefreshConfig value) refreshConfig,
+  }) {
+    return configRequested(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsStarted value)? started,
+    TResult? Function(SettingsConfigRequested value)? configRequested,
+    TResult? Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult? Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult? Function(SettingsLanguageChanged value)? languageChanged,
+    TResult? Function(SettingsRefreshConfig value)? refreshConfig,
+  }) {
+    return configRequested?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsStarted value)? started,
+    TResult Function(SettingsConfigRequested value)? configRequested,
+    TResult Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult Function(SettingsLanguageChanged value)? languageChanged,
+    TResult Function(SettingsRefreshConfig value)? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (configRequested != null) {
+      return configRequested(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsConfigRequested implements SettingsEvent {
+  const factory SettingsConfigRequested() = _$SettingsConfigRequestedImpl;
+}
+
+/// @nodoc
+abstract class _$$SettingsApiUrlChangedImplCopyWith<$Res> {
+  factory _$$SettingsApiUrlChangedImplCopyWith(
+          _$SettingsApiUrlChangedImpl value,
+          $Res Function(_$SettingsApiUrlChangedImpl) then) =
+      __$$SettingsApiUrlChangedImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call({String url});
+}
+
+/// @nodoc
+class __$$SettingsApiUrlChangedImplCopyWithImpl<$Res>
+    extends _$SettingsEventCopyWithImpl<$Res, _$SettingsApiUrlChangedImpl>
+    implements _$$SettingsApiUrlChangedImplCopyWith<$Res> {
+  __$$SettingsApiUrlChangedImplCopyWithImpl(_$SettingsApiUrlChangedImpl _value,
+      $Res Function(_$SettingsApiUrlChangedImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? url = null,
+  }) {
+    return _then(_$SettingsApiUrlChangedImpl(
+      null == url
+          ? _value.url
+          : url // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$SettingsApiUrlChangedImpl implements SettingsApiUrlChanged {
+  const _$SettingsApiUrlChangedImpl(this.url);
+
+  @override
+  final String url;
+
+  @override
+  String toString() {
+    return 'SettingsEvent.apiUrlChanged(url: $url)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$SettingsApiUrlChangedImpl &&
+            (identical(other.url, url) || other.url == url));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, url);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$SettingsApiUrlChangedImplCopyWith<_$SettingsApiUrlChangedImpl>
+      get copyWith => __$$SettingsApiUrlChangedImplCopyWithImpl<
+          _$SettingsApiUrlChangedImpl>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() started,
+    required TResult Function() configRequested,
+    required TResult Function(String url) apiUrlChanged,
+    required TResult Function(String url) apiUrlSaved,
+    required TResult Function(String code) languageChanged,
+    required TResult Function() refreshConfig,
+  }) {
+    return apiUrlChanged(url);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? started,
+    TResult? Function()? configRequested,
+    TResult? Function(String url)? apiUrlChanged,
+    TResult? Function(String url)? apiUrlSaved,
+    TResult? Function(String code)? languageChanged,
+    TResult? Function()? refreshConfig,
+  }) {
+    return apiUrlChanged?.call(url);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? started,
+    TResult Function()? configRequested,
+    TResult Function(String url)? apiUrlChanged,
+    TResult Function(String url)? apiUrlSaved,
+    TResult Function(String code)? languageChanged,
+    TResult Function()? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (apiUrlChanged != null) {
+      return apiUrlChanged(url);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsStarted value) started,
+    required TResult Function(SettingsConfigRequested value) configRequested,
+    required TResult Function(SettingsApiUrlChanged value) apiUrlChanged,
+    required TResult Function(SettingsApiUrlSaved value) apiUrlSaved,
+    required TResult Function(SettingsLanguageChanged value) languageChanged,
+    required TResult Function(SettingsRefreshConfig value) refreshConfig,
+  }) {
+    return apiUrlChanged(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsStarted value)? started,
+    TResult? Function(SettingsConfigRequested value)? configRequested,
+    TResult? Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult? Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult? Function(SettingsLanguageChanged value)? languageChanged,
+    TResult? Function(SettingsRefreshConfig value)? refreshConfig,
+  }) {
+    return apiUrlChanged?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsStarted value)? started,
+    TResult Function(SettingsConfigRequested value)? configRequested,
+    TResult Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult Function(SettingsLanguageChanged value)? languageChanged,
+    TResult Function(SettingsRefreshConfig value)? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (apiUrlChanged != null) {
+      return apiUrlChanged(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsApiUrlChanged implements SettingsEvent {
+  const factory SettingsApiUrlChanged(final String url) =
+      _$SettingsApiUrlChangedImpl;
+
+  String get url;
+  @JsonKey(ignore: true)
+  _$$SettingsApiUrlChangedImplCopyWith<_$SettingsApiUrlChangedImpl>
+      get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class _$$SettingsApiUrlSavedImplCopyWith<$Res> {
+  factory _$$SettingsApiUrlSavedImplCopyWith(_$SettingsApiUrlSavedImpl value,
+          $Res Function(_$SettingsApiUrlSavedImpl) then) =
+      __$$SettingsApiUrlSavedImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call({String url});
+}
+
+/// @nodoc
+class __$$SettingsApiUrlSavedImplCopyWithImpl<$Res>
+    extends _$SettingsEventCopyWithImpl<$Res, _$SettingsApiUrlSavedImpl>
+    implements _$$SettingsApiUrlSavedImplCopyWith<$Res> {
+  __$$SettingsApiUrlSavedImplCopyWithImpl(_$SettingsApiUrlSavedImpl _value,
+      $Res Function(_$SettingsApiUrlSavedImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? url = null,
+  }) {
+    return _then(_$SettingsApiUrlSavedImpl(
+      null == url
+          ? _value.url
+          : url // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$SettingsApiUrlSavedImpl implements SettingsApiUrlSaved {
+  const _$SettingsApiUrlSavedImpl(this.url);
+
+  @override
+  final String url;
+
+  @override
+  String toString() {
+    return 'SettingsEvent.apiUrlSaved(url: $url)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$SettingsApiUrlSavedImpl &&
+            (identical(other.url, url) || other.url == url));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, url);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$SettingsApiUrlSavedImplCopyWith<_$SettingsApiUrlSavedImpl> get copyWith =>
+      __$$SettingsApiUrlSavedImplCopyWithImpl<_$SettingsApiUrlSavedImpl>(
+          this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() started,
+    required TResult Function() configRequested,
+    required TResult Function(String url) apiUrlChanged,
+    required TResult Function(String url) apiUrlSaved,
+    required TResult Function(String code) languageChanged,
+    required TResult Function() refreshConfig,
+  }) {
+    return apiUrlSaved(url);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? started,
+    TResult? Function()? configRequested,
+    TResult? Function(String url)? apiUrlChanged,
+    TResult? Function(String url)? apiUrlSaved,
+    TResult? Function(String code)? languageChanged,
+    TResult? Function()? refreshConfig,
+  }) {
+    return apiUrlSaved?.call(url);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? started,
+    TResult Function()? configRequested,
+    TResult Function(String url)? apiUrlChanged,
+    TResult Function(String url)? apiUrlSaved,
+    TResult Function(String code)? languageChanged,
+    TResult Function()? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (apiUrlSaved != null) {
+      return apiUrlSaved(url);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsStarted value) started,
+    required TResult Function(SettingsConfigRequested value) configRequested,
+    required TResult Function(SettingsApiUrlChanged value) apiUrlChanged,
+    required TResult Function(SettingsApiUrlSaved value) apiUrlSaved,
+    required TResult Function(SettingsLanguageChanged value) languageChanged,
+    required TResult Function(SettingsRefreshConfig value) refreshConfig,
+  }) {
+    return apiUrlSaved(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsStarted value)? started,
+    TResult? Function(SettingsConfigRequested value)? configRequested,
+    TResult? Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult? Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult? Function(SettingsLanguageChanged value)? languageChanged,
+    TResult? Function(SettingsRefreshConfig value)? refreshConfig,
+  }) {
+    return apiUrlSaved?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsStarted value)? started,
+    TResult Function(SettingsConfigRequested value)? configRequested,
+    TResult Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult Function(SettingsLanguageChanged value)? languageChanged,
+    TResult Function(SettingsRefreshConfig value)? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (apiUrlSaved != null) {
+      return apiUrlSaved(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsApiUrlSaved implements SettingsEvent {
+  const factory SettingsApiUrlSaved(final String url) =
+      _$SettingsApiUrlSavedImpl;
+
+  String get url;
+  @JsonKey(ignore: true)
+  _$$SettingsApiUrlSavedImplCopyWith<_$SettingsApiUrlSavedImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class _$$SettingsLanguageChangedImplCopyWith<$Res> {
+  factory _$$SettingsLanguageChangedImplCopyWith(
+          _$SettingsLanguageChangedImpl value,
+          $Res Function(_$SettingsLanguageChangedImpl) then) =
+      __$$SettingsLanguageChangedImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call({String code});
+}
+
+/// @nodoc
+class __$$SettingsLanguageChangedImplCopyWithImpl<$Res>
+    extends _$SettingsEventCopyWithImpl<$Res, _$SettingsLanguageChangedImpl>
+    implements _$$SettingsLanguageChangedImplCopyWith<$Res> {
+  __$$SettingsLanguageChangedImplCopyWithImpl(
+      _$SettingsLanguageChangedImpl _value,
+      $Res Function(_$SettingsLanguageChangedImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? code = null,
+  }) {
+    return _then(_$SettingsLanguageChangedImpl(
+      null == code
+          ? _value.code
+          : code // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$SettingsLanguageChangedImpl implements SettingsLanguageChanged {
+  const _$SettingsLanguageChangedImpl(this.code);
+
+  @override
+  final String code;
+
+  @override
+  String toString() {
+    return 'SettingsEvent.languageChanged(code: $code)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$SettingsLanguageChangedImpl &&
+            (identical(other.code, code) || other.code == code));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, code);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$SettingsLanguageChangedImplCopyWith<_$SettingsLanguageChangedImpl>
+      get copyWith => __$$SettingsLanguageChangedImplCopyWithImpl<
+          _$SettingsLanguageChangedImpl>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() started,
+    required TResult Function() configRequested,
+    required TResult Function(String url) apiUrlChanged,
+    required TResult Function(String url) apiUrlSaved,
+    required TResult Function(String code) languageChanged,
+    required TResult Function() refreshConfig,
+  }) {
+    return languageChanged(code);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? started,
+    TResult? Function()? configRequested,
+    TResult? Function(String url)? apiUrlChanged,
+    TResult? Function(String url)? apiUrlSaved,
+    TResult? Function(String code)? languageChanged,
+    TResult? Function()? refreshConfig,
+  }) {
+    return languageChanged?.call(code);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? started,
+    TResult Function()? configRequested,
+    TResult Function(String url)? apiUrlChanged,
+    TResult Function(String url)? apiUrlSaved,
+    TResult Function(String code)? languageChanged,
+    TResult Function()? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (languageChanged != null) {
+      return languageChanged(code);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsStarted value) started,
+    required TResult Function(SettingsConfigRequested value) configRequested,
+    required TResult Function(SettingsApiUrlChanged value) apiUrlChanged,
+    required TResult Function(SettingsApiUrlSaved value) apiUrlSaved,
+    required TResult Function(SettingsLanguageChanged value) languageChanged,
+    required TResult Function(SettingsRefreshConfig value) refreshConfig,
+  }) {
+    return languageChanged(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsStarted value)? started,
+    TResult? Function(SettingsConfigRequested value)? configRequested,
+    TResult? Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult? Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult? Function(SettingsLanguageChanged value)? languageChanged,
+    TResult? Function(SettingsRefreshConfig value)? refreshConfig,
+  }) {
+    return languageChanged?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsStarted value)? started,
+    TResult Function(SettingsConfigRequested value)? configRequested,
+    TResult Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult Function(SettingsLanguageChanged value)? languageChanged,
+    TResult Function(SettingsRefreshConfig value)? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (languageChanged != null) {
+      return languageChanged(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsLanguageChanged implements SettingsEvent {
+  const factory SettingsLanguageChanged(final String code) =
+      _$SettingsLanguageChangedImpl;
+
+  String get code;
+  @JsonKey(ignore: true)
+  _$$SettingsLanguageChangedImplCopyWith<_$SettingsLanguageChangedImpl>
+      get copyWith => throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class _$$SettingsRefreshConfigImplCopyWith<$Res> {
+  factory _$$SettingsRefreshConfigImplCopyWith(
+          _$SettingsRefreshConfigImpl value,
+          $Res Function(_$SettingsRefreshConfigImpl) then) =
+      __$$SettingsRefreshConfigImplCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class __$$SettingsRefreshConfigImplCopyWithImpl<$Res>
+    extends _$SettingsEventCopyWithImpl<$Res, _$SettingsRefreshConfigImpl>
+    implements _$$SettingsRefreshConfigImplCopyWith<$Res> {
+  __$$SettingsRefreshConfigImplCopyWithImpl(_$SettingsRefreshConfigImpl _value,
+      $Res Function(_$SettingsRefreshConfigImpl) _then)
+      : super(_value, _then);
+}
+
+/// @nodoc
+
+class _$SettingsRefreshConfigImpl implements SettingsRefreshConfig {
+  const _$SettingsRefreshConfigImpl();
+
+  @override
+  String toString() {
+    return 'SettingsEvent.refreshConfig()';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$SettingsRefreshConfigImpl);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() started,
+    required TResult Function() configRequested,
+    required TResult Function(String url) apiUrlChanged,
+    required TResult Function(String url) apiUrlSaved,
+    required TResult Function(String code) languageChanged,
+    required TResult Function() refreshConfig,
+  }) {
+    return refreshConfig();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? started,
+    TResult? Function()? configRequested,
+    TResult? Function(String url)? apiUrlChanged,
+    TResult? Function(String url)? apiUrlSaved,
+    TResult? Function(String code)? languageChanged,
+    TResult? Function()? refreshConfig,
+  }) {
+    return refreshConfig?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? started,
+    TResult Function()? configRequested,
+    TResult Function(String url)? apiUrlChanged,
+    TResult Function(String url)? apiUrlSaved,
+    TResult Function(String code)? languageChanged,
+    TResult Function()? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (refreshConfig != null) {
+      return refreshConfig();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsStarted value) started,
+    required TResult Function(SettingsConfigRequested value) configRequested,
+    required TResult Function(SettingsApiUrlChanged value) apiUrlChanged,
+    required TResult Function(SettingsApiUrlSaved value) apiUrlSaved,
+    required TResult Function(SettingsLanguageChanged value) languageChanged,
+    required TResult Function(SettingsRefreshConfig value) refreshConfig,
+  }) {
+    return refreshConfig(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsStarted value)? started,
+    TResult? Function(SettingsConfigRequested value)? configRequested,
+    TResult? Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult? Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult? Function(SettingsLanguageChanged value)? languageChanged,
+    TResult? Function(SettingsRefreshConfig value)? refreshConfig,
+  }) {
+    return refreshConfig?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsStarted value)? started,
+    TResult Function(SettingsConfigRequested value)? configRequested,
+    TResult Function(SettingsApiUrlChanged value)? apiUrlChanged,
+    TResult Function(SettingsApiUrlSaved value)? apiUrlSaved,
+    TResult Function(SettingsLanguageChanged value)? languageChanged,
+    TResult Function(SettingsRefreshConfig value)? refreshConfig,
+    required TResult orElse(),
+  }) {
+    if (refreshConfig != null) {
+      return refreshConfig(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsRefreshConfig implements SettingsEvent {
+  const factory SettingsRefreshConfig() = _$SettingsRefreshConfigImpl;
+}

client-mobile/lib/features/settings/presentation/bloc/settings_state.dart

@@ -0,0 +1,17 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import '../../domain/entities/server_config.dart';
+
+part 'settings_state.freezed.dart';
+
+@freezed
+class SettingsState with _$SettingsState {
+  const factory SettingsState.initial() = SettingsInitial;
+  const factory SettingsState.loading() = SettingsLoading;
+  const factory SettingsState.loaded({
+    required String apiUrl,
+    required ServerConfig? serverConfig,
+    required String languageCode,
+    String? error,
+  }) = SettingsLoaded;
+  const factory SettingsState.error(String message) = SettingsError;
+}

client-mobile/lib/features/settings/presentation/bloc/settings_state.freezed.dart

@@ -0,0 +1,692 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'settings_state.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$SettingsState {
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)
+        loaded,
+    required TResult Function(String message) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult? Function(String message)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsInitial value) initial,
+    required TResult Function(SettingsLoading value) loading,
+    required TResult Function(SettingsLoaded value) loaded,
+    required TResult Function(SettingsError value) error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsInitial value)? initial,
+    TResult? Function(SettingsLoading value)? loading,
+    TResult? Function(SettingsLoaded value)? loaded,
+    TResult? Function(SettingsError value)? error,
+  }) =>
+      throw _privateConstructorUsedError;
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsInitial value)? initial,
+    TResult Function(SettingsLoading value)? loading,
+    TResult Function(SettingsLoaded value)? loaded,
+    TResult Function(SettingsError value)? error,
+    required TResult orElse(),
+  }) =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $SettingsStateCopyWith<$Res> {
+  factory $SettingsStateCopyWith(
+          SettingsState value, $Res Function(SettingsState) then) =
+      _$SettingsStateCopyWithImpl<$Res, SettingsState>;
+}
+
+/// @nodoc
+class _$SettingsStateCopyWithImpl<$Res, $Val extends SettingsState>
+    implements $SettingsStateCopyWith<$Res> {
+  _$SettingsStateCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+}
+
+/// @nodoc
+abstract class _$$SettingsInitialImplCopyWith<$Res> {
+  factory _$$SettingsInitialImplCopyWith(_$SettingsInitialImpl value,
+          $Res Function(_$SettingsInitialImpl) then) =
+      __$$SettingsInitialImplCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class __$$SettingsInitialImplCopyWithImpl<$Res>
+    extends _$SettingsStateCopyWithImpl<$Res, _$SettingsInitialImpl>
+    implements _$$SettingsInitialImplCopyWith<$Res> {
+  __$$SettingsInitialImplCopyWithImpl(
+      _$SettingsInitialImpl _value, $Res Function(_$SettingsInitialImpl) _then)
+      : super(_value, _then);
+}
+
+/// @nodoc
+
+class _$SettingsInitialImpl implements SettingsInitial {
+  const _$SettingsInitialImpl();
+
+  @override
+  String toString() {
+    return 'SettingsState.initial()';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is _$SettingsInitialImpl);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)
+        loaded,
+    required TResult Function(String message) error,
+  }) {
+    return initial();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult? Function(String message)? error,
+  }) {
+    return initial?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (initial != null) {
+      return initial();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsInitial value) initial,
+    required TResult Function(SettingsLoading value) loading,
+    required TResult Function(SettingsLoaded value) loaded,
+    required TResult Function(SettingsError value) error,
+  }) {
+    return initial(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsInitial value)? initial,
+    TResult? Function(SettingsLoading value)? loading,
+    TResult? Function(SettingsLoaded value)? loaded,
+    TResult? Function(SettingsError value)? error,
+  }) {
+    return initial?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsInitial value)? initial,
+    TResult Function(SettingsLoading value)? loading,
+    TResult Function(SettingsLoaded value)? loaded,
+    TResult Function(SettingsError value)? error,
+    required TResult orElse(),
+  }) {
+    if (initial != null) {
+      return initial(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsInitial implements SettingsState {
+  const factory SettingsInitial() = _$SettingsInitialImpl;
+}
+
+/// @nodoc
+abstract class _$$SettingsLoadingImplCopyWith<$Res> {
+  factory _$$SettingsLoadingImplCopyWith(_$SettingsLoadingImpl value,
+          $Res Function(_$SettingsLoadingImpl) then) =
+      __$$SettingsLoadingImplCopyWithImpl<$Res>;
+}
+
+/// @nodoc
+class __$$SettingsLoadingImplCopyWithImpl<$Res>
+    extends _$SettingsStateCopyWithImpl<$Res, _$SettingsLoadingImpl>
+    implements _$$SettingsLoadingImplCopyWith<$Res> {
+  __$$SettingsLoadingImplCopyWithImpl(
+      _$SettingsLoadingImpl _value, $Res Function(_$SettingsLoadingImpl) _then)
+      : super(_value, _then);
+}
+
+/// @nodoc
+
+class _$SettingsLoadingImpl implements SettingsLoading {
+  const _$SettingsLoadingImpl();
+
+  @override
+  String toString() {
+    return 'SettingsState.loading()';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType && other is _$SettingsLoadingImpl);
+  }
+
+  @override
+  int get hashCode => runtimeType.hashCode;
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)
+        loaded,
+    required TResult Function(String message) error,
+  }) {
+    return loading();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult? Function(String message)? error,
+  }) {
+    return loading?.call();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (loading != null) {
+      return loading();
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsInitial value) initial,
+    required TResult Function(SettingsLoading value) loading,
+    required TResult Function(SettingsLoaded value) loaded,
+    required TResult Function(SettingsError value) error,
+  }) {
+    return loading(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsInitial value)? initial,
+    TResult? Function(SettingsLoading value)? loading,
+    TResult? Function(SettingsLoaded value)? loaded,
+    TResult? Function(SettingsError value)? error,
+  }) {
+    return loading?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsInitial value)? initial,
+    TResult Function(SettingsLoading value)? loading,
+    TResult Function(SettingsLoaded value)? loaded,
+    TResult Function(SettingsError value)? error,
+    required TResult orElse(),
+  }) {
+    if (loading != null) {
+      return loading(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsLoading implements SettingsState {
+  const factory SettingsLoading() = _$SettingsLoadingImpl;
+}
+
+/// @nodoc
+abstract class _$$SettingsLoadedImplCopyWith<$Res> {
+  factory _$$SettingsLoadedImplCopyWith(_$SettingsLoadedImpl value,
+          $Res Function(_$SettingsLoadedImpl) then) =
+      __$$SettingsLoadedImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call(
+      {String apiUrl,
+      ServerConfig? serverConfig,
+      String languageCode,
+      String? error});
+
+  $ServerConfigCopyWith<$Res>? get serverConfig;
+}
+
+/// @nodoc
+class __$$SettingsLoadedImplCopyWithImpl<$Res>
+    extends _$SettingsStateCopyWithImpl<$Res, _$SettingsLoadedImpl>
+    implements _$$SettingsLoadedImplCopyWith<$Res> {
+  __$$SettingsLoadedImplCopyWithImpl(
+      _$SettingsLoadedImpl _value, $Res Function(_$SettingsLoadedImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? apiUrl = null,
+    Object? serverConfig = freezed,
+    Object? languageCode = null,
+    Object? error = freezed,
+  }) {
+    return _then(_$SettingsLoadedImpl(
+      apiUrl: null == apiUrl
+          ? _value.apiUrl
+          : apiUrl // ignore: cast_nullable_to_non_nullable
+              as String,
+      serverConfig: freezed == serverConfig
+          ? _value.serverConfig
+          : serverConfig // ignore: cast_nullable_to_non_nullable
+              as ServerConfig?,
+      languageCode: null == languageCode
+          ? _value.languageCode
+          : languageCode // ignore: cast_nullable_to_non_nullable
+              as String,
+      error: freezed == error
+          ? _value.error
+          : error // ignore: cast_nullable_to_non_nullable
+              as String?,
+    ));
+  }
+
+  @override
+  @pragma('vm:prefer-inline')
+  $ServerConfigCopyWith<$Res>? get serverConfig {
+    if (_value.serverConfig == null) {
+      return null;
+    }
+
+    return $ServerConfigCopyWith<$Res>(_value.serverConfig!, (value) {
+      return _then(_value.copyWith(serverConfig: value));
+    });
+  }
+}
+
+/// @nodoc
+
+class _$SettingsLoadedImpl implements SettingsLoaded {
+  const _$SettingsLoadedImpl(
+      {required this.apiUrl,
+      required this.serverConfig,
+      required this.languageCode,
+      this.error});
+
+  @override
+  final String apiUrl;
+  @override
+  final ServerConfig? serverConfig;
+  @override
+  final String languageCode;
+  @override
+  final String? error;
+
+  @override
+  String toString() {
+    return 'SettingsState.loaded(apiUrl: $apiUrl, serverConfig: $serverConfig, languageCode: $languageCode, error: $error)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$SettingsLoadedImpl &&
+            (identical(other.apiUrl, apiUrl) || other.apiUrl == apiUrl) &&
+            (identical(other.serverConfig, serverConfig) ||
+                other.serverConfig == serverConfig) &&
+            (identical(other.languageCode, languageCode) ||
+                other.languageCode == languageCode) &&
+            (identical(other.error, error) || other.error == error));
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(runtimeType, apiUrl, serverConfig, languageCode, error);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$SettingsLoadedImplCopyWith<_$SettingsLoadedImpl> get copyWith =>
+      __$$SettingsLoadedImplCopyWithImpl<_$SettingsLoadedImpl>(
+          this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)
+        loaded,
+    required TResult Function(String message) error,
+  }) {
+    return loaded(apiUrl, serverConfig, languageCode, this.error);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult? Function(String message)? error,
+  }) {
+    return loaded?.call(apiUrl, serverConfig, languageCode, this.error);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (loaded != null) {
+      return loaded(apiUrl, serverConfig, languageCode, this.error);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsInitial value) initial,
+    required TResult Function(SettingsLoading value) loading,
+    required TResult Function(SettingsLoaded value) loaded,
+    required TResult Function(SettingsError value) error,
+  }) {
+    return loaded(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsInitial value)? initial,
+    TResult? Function(SettingsLoading value)? loading,
+    TResult? Function(SettingsLoaded value)? loaded,
+    TResult? Function(SettingsError value)? error,
+  }) {
+    return loaded?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsInitial value)? initial,
+    TResult Function(SettingsLoading value)? loading,
+    TResult Function(SettingsLoaded value)? loaded,
+    TResult Function(SettingsError value)? error,
+    required TResult orElse(),
+  }) {
+    if (loaded != null) {
+      return loaded(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsLoaded implements SettingsState {
+  const factory SettingsLoaded(
+      {required final String apiUrl,
+      required final ServerConfig? serverConfig,
+      required final String languageCode,
+      final String? error}) = _$SettingsLoadedImpl;
+
+  String get apiUrl;
+  ServerConfig? get serverConfig;
+  String get languageCode;
+  String? get error;
+  @JsonKey(ignore: true)
+  _$$SettingsLoadedImplCopyWith<_$SettingsLoadedImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class _$$SettingsErrorImplCopyWith<$Res> {
+  factory _$$SettingsErrorImplCopyWith(
+          _$SettingsErrorImpl value, $Res Function(_$SettingsErrorImpl) then) =
+      __$$SettingsErrorImplCopyWithImpl<$Res>;
+  @useResult
+  $Res call({String message});
+}
+
+/// @nodoc
+class __$$SettingsErrorImplCopyWithImpl<$Res>
+    extends _$SettingsStateCopyWithImpl<$Res, _$SettingsErrorImpl>
+    implements _$$SettingsErrorImplCopyWith<$Res> {
+  __$$SettingsErrorImplCopyWithImpl(
+      _$SettingsErrorImpl _value, $Res Function(_$SettingsErrorImpl) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? message = null,
+  }) {
+    return _then(_$SettingsErrorImpl(
+      null == message
+          ? _value.message
+          : message // ignore: cast_nullable_to_non_nullable
+              as String,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$SettingsErrorImpl implements SettingsError {
+  const _$SettingsErrorImpl(this.message);
+
+  @override
+  final String message;
+
+  @override
+  String toString() {
+    return 'SettingsState.error(message: $message)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$SettingsErrorImpl &&
+            (identical(other.message, message) || other.message == message));
+  }
+
+  @override
+  int get hashCode => Object.hash(runtimeType, message);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$SettingsErrorImplCopyWith<_$SettingsErrorImpl> get copyWith =>
+      __$$SettingsErrorImplCopyWithImpl<_$SettingsErrorImpl>(this, _$identity);
+
+  @override
+  @optionalTypeArgs
+  TResult when<TResult extends Object?>({
+    required TResult Function() initial,
+    required TResult Function() loading,
+    required TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)
+        loaded,
+    required TResult Function(String message) error,
+  }) {
+    return error(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? whenOrNull<TResult extends Object?>({
+    TResult? Function()? initial,
+    TResult? Function()? loading,
+    TResult? Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult? Function(String message)? error,
+  }) {
+    return error?.call(message);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeWhen<TResult extends Object?>({
+    TResult Function()? initial,
+    TResult Function()? loading,
+    TResult Function(String apiUrl, ServerConfig? serverConfig,
+            String languageCode, String? error)?
+        loaded,
+    TResult Function(String message)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(message);
+    }
+    return orElse();
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult map<TResult extends Object?>({
+    required TResult Function(SettingsInitial value) initial,
+    required TResult Function(SettingsLoading value) loading,
+    required TResult Function(SettingsLoaded value) loaded,
+    required TResult Function(SettingsError value) error,
+  }) {
+    return error(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult? mapOrNull<TResult extends Object?>({
+    TResult? Function(SettingsInitial value)? initial,
+    TResult? Function(SettingsLoading value)? loading,
+    TResult? Function(SettingsLoaded value)? loaded,
+    TResult? Function(SettingsError value)? error,
+  }) {
+    return error?.call(this);
+  }
+
+  @override
+  @optionalTypeArgs
+  TResult maybeMap<TResult extends Object?>({
+    TResult Function(SettingsInitial value)? initial,
+    TResult Function(SettingsLoading value)? loading,
+    TResult Function(SettingsLoaded value)? loaded,
+    TResult Function(SettingsError value)? error,
+    required TResult orElse(),
+  }) {
+    if (error != null) {
+      return error(this);
+    }
+    return orElse();
+  }
+}
+
+abstract class SettingsError implements SettingsState {
+  const factory SettingsError(final String message) = _$SettingsErrorImpl;
+
+  String get message;
+  @JsonKey(ignore: true)
+  _$$SettingsErrorImplCopyWith<_$SettingsErrorImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

client-mobile/lib/features/settings/presentation/l10n/app_localizations.dart

@@ -0,0 +1,417 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
+import 'package:intl/intl.dart' as intl;
+
+import 'app_localizations_en.dart';
+import 'app_localizations_ru.dart';
+
+// ignore_for_file: type=lint
+
+/// Callers can lookup localized strings with an instance of AppLocalizations
+/// returned by `AppLocalizations.of(context)`.
+///
+/// Applications need to include `AppLocalizations.delegate()` in their app's
+/// `localizationDelegates` list, and the locales they support in the app's
+/// `supportedLocales` list. For example:
+///
+/// ```dart
+/// import 'l10n/app_localizations.dart';
+///
+/// return MaterialApp(
+///   localizationsDelegates: AppLocalizations.localizationsDelegates,
+///   supportedLocales: AppLocalizations.supportedLocales,
+///   home: MyApplicationHome(),
+/// );
+/// ```
+///
+/// ## Update pubspec.yaml
+///
+/// Please make sure to update your pubspec.yaml to include the following
+/// packages:
+///
+/// ```yaml
+/// dependencies:
+///   # Internationalization support.
+///   flutter_localizations:
+///     sdk: flutter
+///   intl: any # Use the pinned version from flutter_localizations
+///
+///   # Rest of dependencies
+/// ```
+///
+/// ## iOS Applications
+///
+/// iOS applications define key application metadata, including supported
+/// locales, in an Info.plist file that is built into the application bundle.
+/// To configure the locales supported by your app, you’ll need to edit this
+/// file.
+///
+/// First, open your project’s ios/Runner.xcworkspace Xcode workspace file.
+/// Then, in the Project Navigator, open the Info.plist file under the Runner
+/// project’s Runner folder.
+///
+/// Next, select the Information Property List item, select Add Item from the
+/// Editor menu, then select Localizations from the pop-up menu.
+///
+/// Select and expand the newly-created Localizations item then, for each
+/// locale your application supports, add a new item and select the locale
+/// you wish to add from the pop-up menu in the Value field. This list should
+/// be consistent with the languages listed in the AppLocalizations.supportedLocales
+/// property.
+abstract class AppLocalizations {
+  AppLocalizations(String locale) : localeName = intl.Intl.canonicalizedLocale(locale.toString());
+
+  final String localeName;
+
+  static AppLocalizations? of(BuildContext context) {
+    return Localizations.of<AppLocalizations>(context, AppLocalizations);
+  }
+
+  static const LocalizationsDelegate<AppLocalizations> delegate = _AppLocalizationsDelegate();
+
+  /// A list of this localizations delegate along with the default localizations
+  /// delegates.
+  ///
+  /// Returns a list of localizations delegates containing this delegate along with
+  /// GlobalMaterialLocalizations.delegate, GlobalCupertinoLocalizations.delegate,
+  /// and GlobalWidgetsLocalizations.delegate.
+  ///
+  /// Additional delegates can be added by appending to this list in
+  /// MaterialApp. This list does not have to be used at all if a custom list
+  /// of delegates is preferred or required.
+  static const List<LocalizationsDelegate<dynamic>> localizationsDelegates = <LocalizationsDelegate<dynamic>>[
+    delegate,
+    GlobalMaterialLocalizations.delegate,
+    GlobalCupertinoLocalizations.delegate,
+    GlobalWidgetsLocalizations.delegate,
+  ];
+
+  /// A list of this localizations delegate's supported locales.
+  static const List<Locale> supportedLocales = <Locale>[
+    Locale('en'),
+    Locale('ru')
+  ];
+
+  /// No description provided for @appTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Messenger'**
+  String get appTitle;
+
+  /// No description provided for @chats.
+  ///
+  /// In en, this message translates to:
+  /// **'Chats'**
+  String get chats;
+
+  /// No description provided for @contacts.
+  ///
+  /// In en, this message translates to:
+  /// **'Contacts'**
+  String get contacts;
+
+  /// No description provided for @settings.
+  ///
+  /// In en, this message translates to:
+  /// **'Settings'**
+  String get settings;
+
+  /// No description provided for @login.
+  ///
+  /// In en, this message translates to:
+  /// **'Login'**
+  String get login;
+
+  /// No description provided for @email.
+  ///
+  /// In en, this message translates to:
+  /// **'Email'**
+  String get email;
+
+  /// No description provided for @password.
+  ///
+  /// In en, this message translates to:
+  /// **'Password'**
+  String get password;
+
+  /// No description provided for @name.
+  ///
+  /// In en, this message translates to:
+  /// **'Name'**
+  String get name;
+
+  /// No description provided for @loginButton.
+  ///
+  /// In en, this message translates to:
+  /// **'Sign In'**
+  String get loginButton;
+
+  /// No description provided for @register.
+  ///
+  /// In en, this message translates to:
+  /// **'Register'**
+  String get register;
+
+  /// No description provided for @noAccount.
+  ///
+  /// In en, this message translates to:
+  /// **'No account? Sign up'**
+  String get noAccount;
+
+  /// No description provided for @logout.
+  ///
+  /// In en, this message translates to:
+  /// **'Sign Out'**
+  String get logout;
+
+  /// No description provided for @serverSettings.
+  ///
+  /// In en, this message translates to:
+  /// **'Server Settings'**
+  String get serverSettings;
+
+  /// No description provided for @apiUrl.
+  ///
+  /// In en, this message translates to:
+  /// **'API URL'**
+  String get apiUrl;
+
+  /// No description provided for @apiUrlHint.
+  ///
+  /// In en, this message translates to:
+  /// **'https://api.example.com'**
+  String get apiUrlHint;
+
+  /// No description provided for @save.
+  ///
+  /// In en, this message translates to:
+  /// **'Save'**
+  String get save;
+
+  /// No description provided for @serverConfig.
+  ///
+  /// In en, this message translates to:
+  /// **'Server Configuration'**
+  String get serverConfig;
+
+  /// No description provided for @system.
+  ///
+  /// In en, this message translates to:
+  /// **'System'**
+  String get system;
+
+  /// No description provided for @stories.
+  ///
+  /// In en, this message translates to:
+  /// **'Stories'**
+  String get stories;
+
+  /// No description provided for @chatsModule.
+  ///
+  /// In en, this message translates to:
+  /// **'Chats'**
+  String get chatsModule;
+
+  /// No description provided for @messages.
+  ///
+  /// In en, this message translates to:
+  /// **'Messages'**
+  String get messages;
+
+  /// No description provided for @calls.
+  ///
+  /// In en, this message translates to:
+  /// **'Calls'**
+  String get calls;
+
+  /// No description provided for @klipy.
+  ///
+  /// In en, this message translates to:
+  /// **'Klipy'**
+  String get klipy;
+
+  /// No description provided for @import.
+  ///
+  /// In en, this message translates to:
+  /// **'Import'**
+  String get import;
+
+  /// No description provided for @federation.
+  ///
+  /// In en, this message translates to:
+  /// **'Federation'**
+  String get federation;
+
+  /// No description provided for @domainUrl.
+  ///
+  /// In en, this message translates to:
+  /// **'Domain'**
+  String get domainUrl;
+
+  /// No description provided for @enableRegistration.
+  ///
+  /// In en, this message translates to:
+  /// **'Registration Enabled'**
+  String get enableRegistration;
+
+  /// No description provided for @enabled.
+  ///
+  /// In en, this message translates to:
+  /// **'Enabled'**
+  String get enabled;
+
+  /// No description provided for @disabled.
+  ///
+  /// In en, this message translates to:
+  /// **'Disabled'**
+  String get disabled;
+
+  /// No description provided for @language.
+  ///
+  /// In en, this message translates to:
+  /// **'Language'**
+  String get language;
+
+  /// No description provided for @russian.
+  ///
+  /// In en, this message translates to:
+  /// **'Русский'**
+  String get russian;
+
+  /// No description provided for @english.
+  ///
+  /// In en, this message translates to:
+  /// **'English'**
+  String get english;
+
+  /// No description provided for @notifications.
+  ///
+  /// In en, this message translates to:
+  /// **'Notifications'**
+  String get notifications;
+
+  /// No description provided for @privacy.
+  ///
+  /// In en, this message translates to:
+  /// **'Privacy'**
+  String get privacy;
+
+  /// No description provided for @soundsAndVibration.
+  ///
+  /// In en, this message translates to:
+  /// **'Sounds & Vibration'**
+  String get soundsAndVibration;
+
+  /// No description provided for @dataAndStorage.
+  ///
+  /// In en, this message translates to:
+  /// **'Data & Storage'**
+  String get dataAndStorage;
+
+  /// No description provided for @aboutApp.
+  ///
+  /// In en, this message translates to:
+  /// **'About App'**
+  String get aboutApp;
+
+  /// No description provided for @help.
+  ///
+  /// In en, this message translates to:
+  /// **'Help'**
+  String get help;
+
+  /// No description provided for @version.
+  ///
+  /// In en, this message translates to:
+  /// **'Version'**
+  String get version;
+
+  /// No description provided for @loading.
+  ///
+  /// In en, this message translates to:
+  /// **'Loading...'**
+  String get loading;
+
+  /// No description provided for @error.
+  ///
+  /// In en, this message translates to:
+  /// **'Error'**
+  String get error;
+
+  /// No description provided for @retry.
+  ///
+  /// In en, this message translates to:
+  /// **'Retry'**
+  String get retry;
+
+  /// No description provided for @noChats.
+  ///
+  /// In en, this message translates to:
+  /// **'No chats yet'**
+  String get noChats;
+
+  /// No description provided for @inDevelopment.
+  ///
+  /// In en, this message translates to:
+  /// **'In development'**
+  String get inDevelopment;
+
+  /// No description provided for @user.
+  ///
+  /// In en, this message translates to:
+  /// **'User'**
+  String get user;
+
+  /// No description provided for @edit.
+  ///
+  /// In en, this message translates to:
+  /// **'Edit'**
+  String get edit;
+
+  /// No description provided for @serverConnectionError.
+  ///
+  /// In en, this message translates to:
+  /// **'Server connection error'**
+  String get serverConnectionError;
+
+  /// No description provided for @settingsSaved.
+  ///
+  /// In en, this message translates to:
+  /// **'Settings saved'**
+  String get settingsSaved;
+}
+
+class _AppLocalizationsDelegate extends LocalizationsDelegate<AppLocalizations> {
+  const _AppLocalizationsDelegate();
+
+  @override
+  Future<AppLocalizations> load(Locale locale) {
+    return SynchronousFuture<AppLocalizations>(lookupAppLocalizations(locale));
+  }
+
+  @override
+  bool isSupported(Locale locale) => <String>['en', 'ru'].contains(locale.languageCode);
+
+  @override
+  bool shouldReload(_AppLocalizationsDelegate old) => false;
+}
+
+AppLocalizations lookupAppLocalizations(Locale locale) {
+
+
+  // Lookup logic when only language code is specified.
+  switch (locale.languageCode) {
+    case 'en': return AppLocalizationsEn();
+    case 'ru': return AppLocalizationsRu();
+  }
+
+  throw FlutterError(
+    'AppLocalizations.delegate failed to load unsupported locale "$locale". This is likely '
+    'an issue with the localizations generation tool. Please file an issue '
+    'on GitHub with a reproducible sample app and the gen-l10n configuration '
+    'that was used.'
+  );
+}

client-mobile/lib/features/settings/presentation/l10n/app_localizations_en.dart

@@ -0,0 +1,154 @@
+// ignore: unused_import
+import 'package:intl/intl.dart' as intl;
+import 'app_localizations.dart';
+
+// ignore_for_file: type=lint
+
+/// The translations for English (`en`).
+class AppLocalizationsEn extends AppLocalizations {
+  AppLocalizationsEn([String locale = 'en']) : super(locale);
+
+  @override
+  String get appTitle => 'Messenger';
+
+  @override
+  String get chats => 'Chats';
+
+  @override
+  String get contacts => 'Contacts';
+
+  @override
+  String get settings => 'Settings';
+
+  @override
+  String get login => 'Login';
+
+  @override
+  String get email => 'Email';
+
+  @override
+  String get password => 'Password';
+
+  @override
+  String get name => 'Name';
+
+  @override
+  String get loginButton => 'Sign In';
+
+  @override
+  String get register => 'Register';
+
+  @override
+  String get noAccount => 'No account? Sign up';
+
+  @override
+  String get logout => 'Sign Out';
+
+  @override
+  String get serverSettings => 'Server Settings';
+
+  @override
+  String get apiUrl => 'API URL';
+
+  @override
+  String get apiUrlHint => 'https://api.example.com';
+
+  @override
+  String get save => 'Save';
+
+  @override
+  String get serverConfig => 'Server Configuration';
+
+  @override
+  String get system => 'System';
+
+  @override
+  String get stories => 'Stories';
+
+  @override
+  String get chatsModule => 'Chats';
+
+  @override
+  String get messages => 'Messages';
+
+  @override
+  String get calls => 'Calls';
+
+  @override
+  String get klipy => 'Klipy';
+
+  @override
+  String get import => 'Import';
+
+  @override
+  String get federation => 'Federation';
+
+  @override
+  String get domainUrl => 'Domain';
+
+  @override
+  String get enableRegistration => 'Registration Enabled';
+
+  @override
+  String get enabled => 'Enabled';
+
+  @override
+  String get disabled => 'Disabled';
+
+  @override
+  String get language => 'Language';
+
+  @override
+  String get russian => 'Русский';
+
+  @override
+  String get english => 'English';
+
+  @override
+  String get notifications => 'Notifications';
+
+  @override
+  String get privacy => 'Privacy';
+
+  @override
+  String get soundsAndVibration => 'Sounds & Vibration';
+
+  @override
+  String get dataAndStorage => 'Data & Storage';
+
+  @override
+  String get aboutApp => 'About App';
+
+  @override
+  String get help => 'Help';
+
+  @override
+  String get version => 'Version';
+
+  @override
+  String get loading => 'Loading...';
+
+  @override
+  String get error => 'Error';
+
+  @override
+  String get retry => 'Retry';
+
+  @override
+  String get noChats => 'No chats yet';
+
+  @override
+  String get inDevelopment => 'In development';
+
+  @override
+  String get user => 'User';
+
+  @override
+  String get edit => 'Edit';
+
+  @override
+  String get serverConnectionError => 'Server connection error';
+
+  @override
+  String get settingsSaved => 'Settings saved';
+}

client-mobile/lib/features/settings/presentation/l10n/app_localizations_ru.dart

@@ -0,0 +1,154 @@
+// ignore: unused_import
+import 'package:intl/intl.dart' as intl;
+import 'app_localizations.dart';
+
+// ignore_for_file: type=lint
+
+/// The translations for Russian (`ru`).
+class AppLocalizationsRu extends AppLocalizations {
+  AppLocalizationsRu([String locale = 'ru']) : super(locale);
+
+  @override
+  String get appTitle => 'Мессенджер';
+
+  @override
+  String get chats => 'Чаты';
+
+  @override
+  String get contacts => 'Контакты';
+
+  @override
+  String get settings => 'Настройки';
+
+  @override
+  String get login => 'Вход';
+
+  @override
+  String get email => 'Email';
+
+  @override
+  String get password => 'Пароль';
+
+  @override
+  String get name => 'Имя';
+
+  @override
+  String get loginButton => 'Войти';
+
+  @override
+  String get register => 'Зарегистрироваться';
+
+  @override
+  String get noAccount => 'Нет аккаунта? Зарегистрироваться';
+
+  @override
+  String get logout => 'Выйти из аккаунта';
+
+  @override
+  String get serverSettings => 'Настройки сервера';
+
+  @override
+  String get apiUrl => 'Адрес API';
+
+  @override
+  String get apiUrlHint => 'https://api.example.com';
+
+  @override
+  String get save => 'Сохранить';
+
+  @override
+  String get serverConfig => 'Конфигурация сервера';
+
+  @override
+  String get system => 'Система';
+
+  @override
+  String get stories => 'Истории';
+
+  @override
+  String get chatsModule => 'Чаты';
+
+  @override
+  String get messages => 'Сообщения';
+
+  @override
+  String get calls => 'Звонки';
+
+  @override
+  String get klipy => 'Клипы';
+
+  @override
+  String get import => 'Импорт';
+
+  @override
+  String get federation => 'Федерация';
+
+  @override
+  String get domainUrl => 'Домен';
+
+  @override
+  String get enableRegistration => 'Регистрация включена';
+
+  @override
+  String get enabled => 'Включено';
+
+  @override
+  String get disabled => 'Отключено';
+
+  @override
+  String get language => 'Язык';
+
+  @override
+  String get russian => 'Русский';
+
+  @override
+  String get english => 'English';
+
+  @override
+  String get notifications => 'Уведомления';
+
+  @override
+  String get privacy => 'Конфиденциальность';
+
+  @override
+  String get soundsAndVibration => 'Звуки и вибрация';
+
+  @override
+  String get dataAndStorage => 'Данные и память';
+
+  @override
+  String get aboutApp => 'О приложении';
+
+  @override
+  String get help => 'Помощь';
+
+  @override
+  String get version => 'Версия';
+
+  @override
+  String get loading => 'Загрузка...';
+
+  @override
+  String get error => 'Ошибка';
+
+  @override
+  String get retry => 'Повторить';
+
+  @override
+  String get noChats => 'У вас пока нет чатов';
+
+  @override
+  String get inDevelopment => 'Функция в разработке';
+
+  @override
+  String get user => 'Пользователь';
+
+  @override
+  String get edit => 'Редактировать';
+
+  @override
+  String get serverConnectionError => 'Ошибка подключения к серверу';
+
+  @override
+  String get settingsSaved => 'Настройки сохранены';
+}

client-mobile/lib/features/settings/presentation/pages/settings_page.dart

@@ -0,0 +1,424 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import '../l10n/app_localizations.dart';
+import '../../domain/entities/server_config.dart';
+import '../bloc/settings_bloc.dart';
+import '../bloc/settings_event.dart';
+import '../bloc/settings_state.dart';
+
+class SettingsPage extends StatelessWidget {
+  const SettingsPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<SettingsBloc, SettingsState>(
+      builder: (context, state) {
+        return state.when(
+          initial: () => const Center(child: CircularProgressIndicator()),
+          loading: () => const Center(child: CircularProgressIndicator()),
+          loaded: (apiUrl, serverConfig, languageCode, error) => _SettingsContent(
+            apiUrl: apiUrl,
+            serverConfig: serverConfig,
+            languageCode: languageCode,
+            error: error,
+          ),
+          error: (message) => Center(child: Text(message)),
+        );
+      },
+    );
+  }
+}
+
+class _SettingsContent extends StatelessWidget {
+  final String apiUrl;
+  final ServerConfig? serverConfig;
+  final String languageCode;
+  final String? error;
+
+  const _SettingsContent({
+    required this.apiUrl,
+    required this.serverConfig,
+    required this.languageCode,
+    this.error,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+
+    return ListView(
+      children: [
+        _SectionHeader(title: l10n.serverSettings),
+        _ApiUrlTile(
+          apiUrl: apiUrl,
+          onSave: (url) {
+            context.read<SettingsBloc>().add(SettingsApiUrlSaved(url));
+          },
+        ),
+        const Divider(),
+
+        _SectionHeader(title: l10n.language),
+        _LanguageTile(
+          currentCode: languageCode,
+          onChanged: (code) {
+            context.read<SettingsBloc>().add(SettingsLanguageChanged(code));
+          },
+        ),
+        const Divider(),
+
+        if (serverConfig != null) ...[
+          _SectionHeader(title: l10n.serverConfig),
+          _ConfigModuleCard(
+            title: l10n.system,
+            icon: Icons.computer,
+            children: [
+              _ConfigItem(label: l10n.domainUrl, value: serverConfig!.system.domainUrl),
+              _ConfigItem(label: l10n.enableRegistration, value: serverConfig!.system.enableRegistration ? l10n.enabled : l10n.disabled),
+            ],
+          ),
+          _ConfigModuleCard(
+            title: l10n.messages,
+            icon: Icons.message,
+            children: [
+              _ConfigItem(label: l10n.enabled, value: serverConfig!.messages.allowMedia ? l10n.enabled : l10n.disabled),
+              _ConfigItem(label: 'Max media size', value: '${(serverConfig!.messages.maxMediaSizeBytes / 1024 / 1024).toStringAsFixed(1)} MB'),
+            ],
+          ),
+          _ConfigModuleCard(
+            title: l10n.calls,
+            icon: Icons.call,
+            children: [
+              _ConfigItem(label: l10n.enabled, value: serverConfig!.webRtc.enabled ? l10n.enabled : l10n.disabled),
+              _ConfigItem(label: 'Voice calls', value: serverConfig!.webRtc.enableVoiceCalls ? l10n.enabled : l10n.disabled),
+              _ConfigItem(label: 'Video calls', value: serverConfig!.webRtc.enableVideoCalls ? l10n.enabled : l10n.disabled),
+            ],
+          ),
+          _ConfigModuleCard(
+            title: l10n.stories,
+            icon: Icons.auto_stories,
+            children: [
+              _ConfigItem(label: l10n.enabled, value: serverConfig!.stories.enabled ? l10n.enabled : l10n.disabled),
+              _ConfigItem(label: 'Lifetime', value: '${serverConfig!.stories.storyLifetimeHours}h'),
+            ],
+          ),
+          _ConfigModuleCard(
+            title: l10n.chatsModule,
+            icon: Icons.chat_bubble,
+            children: [
+              _ConfigItem(label: 'Groups', value: serverConfig!.chats.supportGroups ? l10n.enabled : l10n.disabled),
+              _ConfigItem(label: 'Max participants', value: '${serverConfig!.chats.maxGroupParticipants}'),
+            ],
+          ),
+          if (serverConfig!.federation.enabled)
+            _ConfigModuleCard(
+              title: l10n.federation,
+              icon: Icons.public,
+              children: [
+                _ConfigItem(label: 'Description', value: serverConfig!.federation.serverDescription),
+              ],
+            ),
+          const Divider(),
+        ],
+
+        if (serverConfig == null)
+          ListTile(
+            leading: const Icon(Icons.refresh),
+            title: Text(l10n.retry),
+            onTap: () {
+              context.read<SettingsBloc>().add(const SettingsRefreshConfig());
+            },
+          ),
+
+        _SectionHeader(title: l10n.settings),
+        _SettingsTile(
+          icon: Icons.notifications_outlined,
+          title: l10n.notifications,
+          onTap: () {},
+        ),
+        _SettingsTile(
+          icon: Icons.security,
+          title: l10n.privacy,
+          onTap: () {},
+        ),
+        _SettingsTile(
+          icon: Icons.volume_up,
+          title: l10n.soundsAndVibration,
+          onTap: () {},
+        ),
+        _SettingsTile(
+          icon: Icons.storage,
+          title: l10n.dataAndStorage,
+          onTap: () {},
+        ),
+        const Divider(),
+
+        _SettingsTile(
+          icon: Icons.info_outline,
+          title: l10n.aboutApp,
+          subtitle: '${l10n.version} 1.0.0',
+          onTap: () {},
+        ),
+        _SettingsTile(
+          icon: Icons.help_outline,
+          title: l10n.help,
+          onTap: () {},
+        ),
+        const Divider(),
+
+        Padding(
+          padding: const EdgeInsets.all(16),
+          child: OutlinedButton(
+            onPressed: () {},
+            style: OutlinedButton.styleFrom(
+              foregroundColor: Colors.red,
+              side: const BorderSide(color: Colors.red),
+            ),
+            child: Padding(
+              padding: const EdgeInsets.symmetric(vertical: 12),
+              child: Text(l10n.logout),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+class _SectionHeader extends StatelessWidget {
+  final String title;
+
+  const _SectionHeader({required this.title});
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.fromLTRB(16, 16, 16, 8),
+      child: Text(
+        title.toUpperCase(),
+        style: TextStyle(
+          fontSize: 13,
+          fontWeight: FontWeight.w600,
+          color: Theme.of(context).colorScheme.primary,
+          letterSpacing: 0.5,
+        ),
+      ),
+    );
+  }
+}
+
+class _ApiUrlTile extends StatefulWidget {
+  final String apiUrl;
+  final ValueChanged<String> onSave;
+
+  const _ApiUrlTile({
+    required this.apiUrl,
+    required this.onSave,
+  });
+
+  @override
+  State<_ApiUrlTile> createState() => _ApiUrlTileState();
+}
+
+class _ApiUrlTileState extends State<_ApiUrlTile> {
+  late final TextEditingController _controller;
+  bool _isEditing = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = TextEditingController(text: widget.apiUrl);
+  }
+
+  @override
+  void didUpdateWidget(covariant _ApiUrlTile oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.apiUrl != widget.apiUrl) {
+      _controller.text = widget.apiUrl;
+    }
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+
+    if (_isEditing) {
+      return Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+        child: Row(
+          children: [
+            Expanded(
+              child: TextField(
+                controller: _controller,
+                decoration: InputDecoration(
+                  labelText: l10n.apiUrl,
+                  hintText: l10n.apiUrlHint,
+                  border: const OutlineInputBorder(),
+                  contentPadding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
+                ),
+                keyboardType: TextInputType.url,
+              ),
+            ),
+            const SizedBox(width: 8),
+            IconButton(
+              icon: const Icon(Icons.check, color: Colors.green),
+              onPressed: () {
+                widget.onSave(_controller.text.trim());
+                setState(() => _isEditing = false);
+              },
+            ),
+            IconButton(
+              icon: const Icon(Icons.close, color: Colors.red),
+              onPressed: () {
+                _controller.text = widget.apiUrl;
+                setState(() => _isEditing = false);
+              },
+            ),
+          ],
+        ),
+      );
+    }
+
+    return ListTile(
+      leading: const Icon(Icons.link),
+      title: Text(l10n.apiUrl),
+      subtitle: Text(
+        widget.apiUrl.isEmpty ? l10n.apiUrlHint : widget.apiUrl,
+        style: TextStyle(
+          color: widget.apiUrl.isEmpty ? Colors.grey : null,
+        ),
+      ),
+      trailing: const Icon(Icons.edit),
+      onTap: () => setState(() => _isEditing = true),
+    );
+  }
+}
+
+class _LanguageTile extends StatelessWidget {
+  final String currentCode;
+  final ValueChanged<String> onChanged;
+
+  const _LanguageTile({
+    required this.currentCode,
+    required this.onChanged,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
+
+    return ListTile(
+      leading: const Icon(Icons.language),
+      title: Text(l10n.language),
+      subtitle: Text(currentCode == 'ru' ? l10n.russian : l10n.english),
+      trailing: DropdownButton<String>(
+        value: currentCode,
+        underline: const SizedBox(),
+        items: [
+          DropdownMenuItem(value: 'ru', child: Text(l10n.russian)),
+          DropdownMenuItem(value: 'en', child: Text(l10n.english)),
+        ],
+        onChanged: (value) {
+          if (value != null) onChanged(value);
+        },
+      ),
+    );
+  }
+}
+
+class _ConfigModuleCard extends StatelessWidget {
+  final String title;
+  final IconData icon;
+  final List<Widget> children;
+
+  const _ConfigModuleCard({
+    required this.title,
+    required this.icon,
+    required this.children,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Card(
+      margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
+      child: ExpansionTile(
+        leading: Icon(icon, color: Theme.of(context).colorScheme.primary),
+        title: Text(title),
+        children: [
+          Padding(
+            padding: const EdgeInsets.fromLTRB(16, 0, 16, 12),
+            child: Column(
+              children: children,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _ConfigItem extends StatelessWidget {
+  final String label;
+  final String value;
+
+  const _ConfigItem({
+    required this.label,
+    required this.value,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(vertical: 4),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: [
+          Text(
+            label,
+            style: TextStyle(
+              color: Colors.grey[600],
+              fontSize: 13,
+            ),
+          ),
+          Text(
+            value,
+            style: const TextStyle(
+              fontWeight: FontWeight.w500,
+              fontSize: 13,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _SettingsTile extends StatelessWidget {
+  final IconData icon;
+  final String title;
+  final String? subtitle;
+  final VoidCallback onTap;
+
+  const _SettingsTile({
+    required this.icon,
+    required this.title,
+    this.subtitle,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      leading: Icon(icon),
+      title: Text(title),
+      subtitle: subtitle != null ? Text(subtitle!) : null,
+      trailing: const Icon(Icons.chevron_right),
+      onTap: onTap,
+    );
+  }
+}