Merge remote-tracking branch 'origin/feature/FullStack' into feature/app-icon-switcher

# Conflicts:
#	pubspec.lock

.gitignore

@@ -133,4 +133,9 @@ agents.md
 
 # Environment variables
 .env
-.env.*
+.env.*
+# Локальные дампы трафика и скрипты анализа (содержат секреты)
+komet.txt
+original_app.txt
+fingerprint.py
+PCAPdroid_*.txt

lib/backend/api.dart

@@ -39,6 +39,12 @@ class Api {
 
   Map<dynamic, dynamic>? get userAgent => _userAgent;
 
+  int? _callsSeed;
+  String? _deviceId;
+
+  int? get callsSeed => _callsSeed;
+  String? get deviceId => _deviceId;
+
   List<CountryName>? _registrationCountries;
 
   List<CountryName> get registrationCountries =>
@@ -111,6 +117,7 @@ class Api {
     try {
       final response = await sendHandshake();
       if (response.isOk) {
+        _callsSeed = response.payload['callsSeed'] as int?;
         _registrationCountries = _parseRegistrationCountries(response.payload);
         _setSessionState(SessionState.online);
         _startPinging();
@@ -164,7 +171,7 @@ class Api {
     String architecture = 'arm64';
     String appVersion = SpoofingService.hardcodedAppVersion;
     int buildNumber = SpoofingService.hardcodedBuildNumber;
-    String screen = '1920x1080';
+    String screen = '420dpi 420dpi 1080x2340';
 
     tz.initializeTimeZones();
     final timeZoneName = await FlutterTimezone.getLocalTimezone();
@@ -230,23 +237,25 @@ class Api {
 
     _userAgent = {
       'deviceType': deviceType,
-      'locale': locale,
-      'deviceLocale': deviceLocale,
-      'osVersion': osVersion,
-      'deviceName': deviceName,
       'appVersion': appVersion,
-      'screen': screen,
+      'osVersion': osVersion,
       'timezone': timezone,
+      'screen': screen,
       'pushDeviceType': 'GCM',
       'arch': architecture,
+      'locale': locale,
       'buildNumber': buildNumber,
+      'deviceName': deviceName,
+      'deviceLocale': deviceLocale,
     };
 
+    _deviceId = deviceId;
+
     final payload = <dynamic, dynamic>{
       'mt_instanceid': await DeviceIdentity.instanceId(),
+      'userAgent': _userAgent,
       'clientSessionId': DeviceIdentity.clientSessionId,
       'deviceId': deviceId,
-      'userAgent': _userAgent,
     };
 
     return sendRequest(Opcode.sessionInit, payload);

lib/backend/modules/account.dart

@@ -1,6 +1,8 @@
 import 'dart:async';
 import 'dart:convert';
+import 'dart:typed_data';
 import '../api.dart';
+import '../../core/protocol/chat_cache_fingerprint.dart';
 import '../../core/protocol/opcode_map.dart';
 import '../../core/protocol/packet.dart';
 import '../../core/storage/app_database.dart';
@@ -223,6 +225,20 @@ class RequestCodeResult {
   const RequestCodeResult({required this.token});
 }
 
+class PresetAvatar {
+  final int id;
+  final String url;
+
+  const PresetAvatar({required this.id, required this.url});
+}
+
+class PresetAvatarCategory {
+  final String name;
+  final List<PresetAvatar> avatars;
+
+  const PresetAvatarCategory({required this.name, required this.avatars});
+}
+
 class VerifyCodeResult {
   final Map<dynamic, dynamic> payload;
 
@@ -232,6 +248,37 @@ class VerifyCodeResult {
 
   String? get registerToken => _nestedToken('REGISTER');
 
+  bool get isRegistration => registerToken != null && loginToken == null;
+
+  List<PresetAvatarCategory> get presetAvatars {
+    final raw = payload['presetAvatars'];
+    if (raw is! List) return const [];
+    final categories = <PresetAvatarCategory>[];
+    for (final cat in raw) {
+      if (cat is! Map) continue;
+      final avatarsRaw = cat['avatars'];
+      if (avatarsRaw is! List) continue;
+      final avatars = <PresetAvatar>[];
+      for (final a in avatarsRaw) {
+        if (a is! Map) continue;
+        final id = a['id'];
+        final url = a['url'];
+        if (id is int && url is String && url.isNotEmpty) {
+          avatars.add(PresetAvatar(id: id, url: url));
+        }
+      }
+      if (avatars.isNotEmpty) {
+        categories.add(
+          PresetAvatarCategory(
+            name: cat['name']?.toString() ?? '',
+            avatars: avatars,
+          ),
+        );
+      }
+    }
+    return categories;
+  }
+
   bool get requiresPassword => payload['passwordChallenge'] != null;
 
   Map<dynamic, dynamic>? get passwordChallenge {
@@ -484,7 +531,7 @@ class AccountModule {
     return newProfile;
   }
 
-  Future<ProfileData> updateProfileAvatar(String photoToken, String avatarType) async {
+  Future<ProfileData> updateProfileAvatar(String photoToken, {String avatarType = 'USER_AVATAR'}) async {
     _ensureOnline();
     final packet = await _api.sendRequest(Opcode.profile, {
       'photoToken': photoToken,
@@ -621,15 +668,17 @@ class AccountModule {
     String? hint,
   }) async {
     _ensureOnline();
+    final capabilities = <int>[0, if (hint != null) 3, 4];
     final payload = <dynamic, dynamic>{
-      'expectedCapabilities': [0, 3, 4],
+      'expectedCapabilities': capabilities,
       'trackId': trackId,
       'password': password,
     };
     if (hint != null) payload['hint'] = hint;
-    final packet = await _api.sendRequest(Opcode.authSet2fa, payload);
-    _checkPacketError(packet, 'confirm2fa');
-    return _processProfileUpdate(packet);
+    return _processProfileUpdate(
+      _api.sendRequest(Opcode.authSet2fa, payload),
+      'confirm2fa',
+    );
   }
 
   // 2FA Management (when already set)
@@ -670,6 +719,11 @@ class AccountModule {
     );
   }
 
+  Future<TwoFactorDetails> get2faStatus() async {
+    final trackId = await enter2faPanel();
+    return get2faDetails(trackId);
+  }
+
   Future<void> check2faPassword(String trackId, String password) async {
     _ensureOnline();
     final packet = await _api.sendRequest(Opcode.authLoginCheckPassword, {
@@ -707,15 +761,16 @@ class AccountModule {
     }
 
     final payload = <dynamic, dynamic>{
-      'expectedCapabilities': [1, 3],
+      'expectedCapabilities': <int>[1, if (hint != null) 3],
       'trackId': trackId,
       'password': newPassword,
     };
     if (hint != null) payload['hint'] = hint;
 
-    final packet = await _api.sendRequest(Opcode.authSet2fa, payload);
-    _checkPacketError(packet, 'update2faPassword');
-    return _processProfileUpdate(packet);
+    return _processProfileUpdate(
+      _api.sendRequest(Opcode.authSet2fa, payload),
+      'update2faPassword',
+    );
   }
 
   Future<ProfileData> update2faEmail({
@@ -740,9 +795,10 @@ class AccountModule {
       'expectedCapabilities': [4],
       'trackId': trackId,
     };
-    final packet = await _api.sendRequest(Opcode.authSet2fa, payload);
-    _checkPacketError(packet, 'update2faEmail');
-    return _processProfileUpdate(packet);
+    return _processProfileUpdate(
+      _api.sendRequest(Opcode.authSet2fa, payload),
+      'update2faEmail',
+    );
   }
 
   Future<ProfileData> remove2fa(String trackId) async {
@@ -752,34 +808,46 @@ class AccountModule {
       'trackId': trackId,
       'remove2fa': true,
     };
-    final packet = await _api.sendRequest(Opcode.authSet2fa, payload);
-    _checkPacketError(packet, 'remove2fa');
-    return _processProfileUpdate(packet);
+    return _processProfileUpdate(
+      _api.sendRequest(Opcode.authSet2fa, payload),
+      'remove2fa',
+    );
   }
 
-  Future<ProfileData> _processProfileUpdate(Packet packet) async {
-    _api.registerPushHandler(Opcode.notifProfile, (p) {});
-    try {
-      await for (final push in _api.pushStream
-          .where((p) => p.opcode == Opcode.notifProfile)
-          .timeout(const Duration(seconds: 15))) {
-        final payload = push.payload;
-        if (payload is Map) {
-          final profile = payload['profile'];
-          if (profile is Map) {
-            final contact = profile['contact'];
-            if (contact is Map) {
-              return ProfileData.fromServerMap(contact.cast<dynamic, dynamic>());
-            }
-          }
-        }
+  Future<ProfileData> _processProfileUpdate(
+    Future<Packet> requestFuture,
+    String tag,
+  ) async {
+    final completer = Completer<ProfileData>();
+    final sub = _api.pushStream
+        .where((p) => p.opcode == Opcode.notifProfile)
+        .listen((push) {
+      if (completer.isCompleted) return;
+      final payload = push.payload;
+      if (payload is! Map) return;
+      final profile = payload['profile'];
+      if (profile is! Map) return;
+      final contact = profile['contact'];
+      if (contact is! Map) return;
+      completer.complete(
+        ProfileData.fromServerMap(contact.cast<dynamic, dynamic>()),
+      );
+    });
+    final timer = Timer(const Duration(seconds: 15), () {
+      if (!completer.isCompleted) {
+        completer.completeError(
+          Exception('Таймаут ожидания обновления профиля'),
+        );
       }
-    } on TimeoutException {
-      throw Exception('Таймаут ожидания обновления профиля');
+    });
+    try {
+      final packet = await requestFuture;
+      _checkPacketError(packet, tag);
+      return await completer.future;
     } finally {
-      _api.unregisterPushHandler(Opcode.notifProfile);
+      timer.cancel();
+      await sub.cancel();
     }
-    throw Exception('Не удалось получить обновлённый профиль');
   }
 
   Future<RequestCodeResult> requestCode(
@@ -827,6 +895,61 @@ class AccountModule {
     return result;
   }
 
+  Future<int> completeRegistration({
+    required String token,
+    required String firstName,
+    String? lastName,
+    int? photoId,
+  }) async {
+    _ensureOnline();
+
+    final payload = <dynamic, dynamic>{
+      'token': token,
+      'tokenType': AuthRequestType.register.value,
+      'firstName': firstName,
+    };
+    if (lastName != null && lastName.isNotEmpty) {
+      payload['lastName'] = lastName;
+    }
+    if (photoId != null) {
+      payload['photoId'] = photoId;
+      payload['avatarType'] = 'PRESET_AVATAR';
+    }
+
+    logger.i('Завершение регистрации (opcode=${Opcode.authConfirm})');
+
+    final packet = await _api.sendRequest(Opcode.authConfirm, payload);
+
+    _checkPacketError(packet, 'completeRegistration');
+
+    final data = packet.payload;
+    if (data is! Map) {
+      throw Exception(
+        'completeRegistration: неожиданный тип payload: ${data.runtimeType}',
+      );
+    }
+
+    final profileMap = data['profile'];
+    if (profileMap is! Map) {
+      throw Exception('completeRegistration: отсутствует profile в ответе');
+    }
+    final contact = profileMap['contact'];
+    if (contact is! Map) {
+      throw Exception('completeRegistration: отсутствует profile.contact');
+    }
+    final accountId = contact['id'] as int?;
+    if (accountId == null) {
+      throw Exception('completeRegistration: отсутствует id аккаунта');
+    }
+
+    final profile = ProfileData.fromServerMap(contact.cast<dynamic, dynamic>());
+    await AppDatabase.saveProfile(profile, isActive: true);
+    await TokenStorage.setActiveAccount(accountId);
+
+    logger.i('Регистрация завершена, accountId=$accountId');
+    return accountId;
+  }
+
   Future<LoginResult> login({
     int? accountId,
     String? token,
@@ -921,6 +1044,20 @@ class AccountModule {
     _checkPacketError(packet, 'authorizeWebQrLogin');
   }
 
+  Future<void> beginAddAccount() async {
+    try {
+      await _api.disconnect();
+    } catch (_) {}
+
+    await TokenStorage.clearActiveAccount();
+
+    ContactCache.clear();
+    TranscriptionCache.clear();
+    ChatsModule.resetForAccountSwitch();
+
+    logger.i('Добавление аккаунта: сессия сброшена, активный аккаунт очищен');
+  }
+
   Future<ProfileData> switchAccount(int accountId) async {
     final profile = await AppDatabase.loadProfile(accountId);
     if (profile == null) {
@@ -940,6 +1077,7 @@ class AccountModule {
 
     ContactCache.clear();
     TranscriptionCache.clear();
+    ChatsModule.resetForAccountSwitch();
     await ContactsModule.primeCacheFromDb(accountId);
 
     try {
@@ -1017,9 +1155,18 @@ class AccountModule {
     final payload = <dynamic, dynamic>{
       'token': token,
       'interactive': true,
-      if (_api.userAgent != null) 'userAgent': _api.userAgent,
+      'exp': {
+        'chatsCountGroups': Uint8List.fromList([0x0b, 0x32]),
+      },
     };
 
+    final callsSeed = _api.callsSeed;
+    final deviceId = _api.deviceId;
+    if (callsSeed != null && deviceId != null) {
+      payload['chatCacheFingerprint'] =
+          ChatCacheFingerprint.compute(callsSeed, deviceId);
+    }
+
     if (sync != null) {
       payload['presenceSync'] = sync.presenceSync;
       payload['chatsSync'] = sync.chatsSync;
@@ -1029,9 +1176,6 @@ class AccountModule {
       payload['bannersSync'] = sync.bannersSync;
       payload['lastLogin'] = sync.lastLogin;
       if (sync.configHash != null) payload['configHash'] = sync.configHash;
-      if (sync.chatCacheFingerprint != null) {
-        payload['chatCacheFingerprint'] = sync.chatCacheFingerprint;
-      }
     } else {
       payload['presenceSync'] = 0;
     }

lib/backend/modules/chats.dart

@@ -5,12 +5,13 @@ import 'package:flutter/foundation.dart';
 
 import '../../core/protocol/opcode_map.dart';
 import '../../core/protocol/packet.dart';
+import '../../core/cache/info_cache.dart';
 import '../../core/storage/app_database.dart';
 import '../../core/storage/token_storage.dart';
 import '../../core/utils/logger.dart';
 import '../api.dart';
 import 'folders.dart';
-import 'messages.dart' show ContactCache;
+import 'messages.dart' show ContactCache, CachedMessage;
 
 Map<int, int> _parseParticipants(dynamic raw) {
   try {
@@ -146,27 +147,317 @@ class CachedChat {
   };
 }
 
+sealed class MessageEvent {
+  final int chatId;
+  const MessageEvent(this.chatId);
+}
+
+class MessageAddedEvent extends MessageEvent {
+  final CachedMessage message;
+  const MessageAddedEvent(super.chatId, this.message);
+}
+
+class MessageEditedEvent extends MessageEvent {
+  final CachedMessage message;
+  const MessageEditedEvent(super.chatId, this.message);
+}
+
+class MessageRemovedEvent extends MessageEvent {
+  final String messageId;
+  const MessageRemovedEvent(super.chatId, this.messageId);
+}
+
+class MessageReactionsChangedEvent extends MessageEvent {
+  final String messageId;
+  final Map<String, dynamic>? reactionInfo;
+  const MessageReactionsChangedEvent(super.chatId, this.messageId, this.reactionInfo);
+}
+
 class ChatsModule {
   static const int muteOff = 0;
   static const int muteForever = -1;
 
+  /// Sentinel в `lastMsgText` когда последнее сообщение в чате удалено,
+  /// а кеша истории нет — UI должен отрисовать курсивную плашку.
+  static const String lastMsgPlaceholder = '__komet_lastmsg_placeholder__';
+
+  static final _messageEventsController =
+      StreamController<MessageEvent>.broadcast();
+  static Stream<MessageEvent> get messageEvents =>
+      _messageEventsController.stream;
+
   static final ValueNotifier<int> chatsChanged = ValueNotifier(0);
   static void _bump() => chatsChanged.value = chatsChanged.value + 1;
 
   static StreamSubscription<Packet>? _globalPushSub;
+  static StreamSubscription<SessionState>? _globalStateSub;
+
+  static final Set<int> _dirtyChats = {};
+  static final Set<int> _knownChats = {};
+
+  static bool isChatDirty(int chatId) => _dirtyChats.contains(chatId);
+  static void markChatClean(int chatId) => _dirtyChats.remove(chatId);
+  static void markChatDirty(int chatId) => _dirtyChats.add(chatId);
+  static void registerKnownChat(int chatId) => _knownChats.add(chatId);
 
   static void attachGlobalPushHandlers(Api api) {
     _globalPushSub?.cancel();
+    _globalStateSub?.cancel();
     _globalPushSub = api.pushStream.listen(_handleGlobalPush);
+    _globalStateSub = api.stateStream.listen(_handleSessionState);
+    if (api.state != SessionState.online) {
+      _markAllKnownChatsDirty();
+    }
+  }
+
+  static Future<void> _handleSessionState(SessionState state) async {
+    if (state == SessionState.disconnected) {
+      ContactInfoFetch.clear();
+      PresenceFetch.clear();
+      ChatInfoFetch.clear();
+      await _markAllKnownChatsDirty();
+    }
+  }
+
+  static void resetForAccountSwitch() {
+    _dirtyChats.clear();
+    _knownChats.clear();
+    ContactInfoFetch.clear();
+    PresenceFetch.clear();
+    ChatInfoFetch.clear();
+  }
+
+  static Future<void> _markAllKnownChatsDirty() async {
+    if (_knownChats.isEmpty) {
+      final accountId = await TokenStorage.getActiveAccountId();
+      if (accountId == null) return;
+      final rows = await AppDatabase.loadChats(accountId);
+      for (final row in rows) {
+        final id = row['id'];
+        if (id is int) _knownChats.add(id);
+      }
+    }
+    _dirtyChats.addAll(_knownChats);
   }
 
   static Future<void> _handleGlobalPush(Packet packet) async {
     switch (packet.opcode) {
+      case Opcode.notifMessage:
+        await _handleNotifMessage(packet);
       case Opcode.notifMark:
         await _handleNotifMark(packet);
+      case Opcode.notifMsgReactionsChanged:
+        await _handleNotifMsgReactionsChanged(packet);
     }
   }
 
+  static Future<void> _handleNotifMessage(Packet packet) async {
+    final payload = packet.payload;
+    if (payload is! Map) return;
+    final chatId = payload['chatId'];
+    if (chatId is! int) return;
+    final msg = payload['message'];
+    if (msg is! Map) return;
+
+    final accountId = await TokenStorage.getActiveAccountId();
+    if (accountId == null) return;
+
+    final senderId = msg['sender'] as int?;
+    final msgIdStr = msg['id']?.toString();
+    final msgIdInt = (msg['id'] is int)
+        ? msg['id'] as int
+        : int.tryParse(msgIdStr ?? '');
+    final msgTime = msg['time'] as int?;
+    final msgText = msg['text'] as String?;
+    final status = msg['status'] as String?;
+    final unread = payload['unread'] as int?;
+
+    var rows = await AppDatabase.loadChat(accountId, chatId);
+    if (rows.isEmpty) {
+      try {
+        final chatInfo = await ChatInfoFetch.get(chatId);
+        if (chatInfo != null) {
+          await cacheServerChat(chatInfo, accountId);
+        }
+      } catch (e) {
+        logger.w('notifMessage: fetch info for unknown chat $chatId failed: $e');
+        return;
+      }
+      rows = await AppDatabase.loadChat(accountId, chatId);
+      if (rows.isEmpty) return;
+    }
+
+    if (status == 'REMOVED' && msgIdStr != null) {
+      await AppDatabase.deleteMessage(accountId, chatId, msgIdStr);
+      final cachedChat = CachedChat.fromDbRow(rows.first);
+      if (cachedChat.lastMsgId == msgIdInt) {
+        await _reconcileLastMessage(accountId, chatId, rows.first, unread: unread);
+      } else if (unread != null) {
+        final newRow = Map<String, dynamic>.from(rows.first);
+        newRow['unread_count'] = unread;
+        await AppDatabase.saveChats([newRow]);
+      }
+      _messageEventsController.add(MessageRemovedEvent(chatId, msgIdStr));
+      _bump();
+      return;
+    }
+
+    CachedMessage? emittedMessage;
+    if (status == 'EDITED' && msgIdStr != null) {
+      final existing = await AppDatabase.loadMessage(accountId, chatId, msgIdStr);
+      if (existing != null) {
+        Map<String, dynamic> mergedPayload;
+        final existingPayloadRaw = existing['payload'];
+        if (existingPayloadRaw is String && existingPayloadRaw.isNotEmpty) {
+          try {
+            mergedPayload = Map<String, dynamic>.from(
+              jsonDecode(existingPayloadRaw) as Map,
+            );
+          } catch (_) {
+            mergedPayload = Map<String, dynamic>.from(msg);
+          }
+        } else {
+          mergedPayload = Map<String, dynamic>.from(msg);
+        }
+        for (final entry in msg.entries) {
+          if (entry.key == 'reactionInfo') continue;
+          mergedPayload[entry.key.toString()] = entry.value;
+        }
+        final newRow = Map<String, dynamic>.from(existing);
+        newRow['text'] = msgText;
+        newRow['status'] = status;
+        newRow['payload'] = jsonEncode(mergedPayload);
+        await AppDatabase.saveMessages([newRow]);
+        emittedMessage = CachedMessage.fromDbRow(newRow);
+        _messageEventsController.add(MessageEditedEvent(chatId, emittedMessage));
+      }
+    } else if (msgIdStr != null) {
+      final existing = await AppDatabase.loadMessage(accountId, chatId, msgIdStr);
+      if (existing == null) {
+        final cached = CachedMessage.fromPushPayload(accountId, chatId, msg);
+        await AppDatabase.saveMessages([cached.toDbRow()]);
+        emittedMessage = cached;
+        _messageEventsController.add(MessageAddedEvent(chatId, cached));
+      }
+    }
+
+    final cached = CachedChat.fromDbRow(rows.first);
+    final isStaleLast = status != 'REMOVED' &&
+        msgIdInt != null &&
+        cached.lastMsgId == msgIdInt &&
+        status != 'EDITED';
+    if (isStaleLast) {
+      _bump();
+      return;
+    }
+
+    final newRow = Map<String, dynamic>.from(rows.first);
+    if (status != 'REMOVED') {
+      if (msgIdInt != null) newRow['last_msg_id'] = msgIdInt;
+      if (msgTime != null) {
+        newRow['last_msg_time'] = msgTime;
+        if (status != 'EDITED') {
+          newRow['last_event_time'] = msgTime;
+        }
+      }
+      newRow['last_msg_text'] = msgText;
+      if (senderId != null) newRow['last_msg_sender'] = senderId;
+    }
+    if (unread != null) newRow['unread_count'] = unread;
+
+    await AppDatabase.saveChats([newRow]);
+    _bump();
+  }
+
+  static Future<void> _reconcileLastMessage(
+    int accountId,
+    int chatId,
+    Map<String, dynamic> chatRow, {
+    int? unread,
+  }) async {
+    final latest = await AppDatabase.loadMessages(accountId, chatId, limit: 1);
+    final newRow = Map<String, dynamic>.from(chatRow);
+    if (latest.isNotEmpty) {
+      final m = latest.first;
+      newRow['last_msg_id'] = int.tryParse(m['id']?.toString() ?? '');
+      newRow['last_msg_text'] = m['text'];
+      newRow['last_msg_time'] = m['time'];
+      newRow['last_msg_sender'] = m['sender_id'];
+    } else {
+      newRow['last_msg_id'] = null;
+      newRow['last_msg_text'] = lastMsgPlaceholder;
+      newRow['last_msg_sender'] = null;
+    }
+    if (unread != null) newRow['unread_count'] = unread;
+    await AppDatabase.saveChats([newRow]);
+  }
+
+  /// Вызывается после успешного фетча истории чата —
+  /// если в превью был placeholder, заменяем его на актуальное
+  /// последнее сообщение из кеша.
+  static Future<void> reconcileLastMessageIfPlaceholder(
+    int accountId,
+    int chatId,
+  ) async {
+    final rows = await AppDatabase.loadChat(accountId, chatId);
+    if (rows.isEmpty) return;
+    final chat = CachedChat.fromDbRow(rows.first);
+    if (chat.lastMsgText != lastMsgPlaceholder) return;
+    await _reconcileLastMessage(accountId, chatId, rows.first);
+    _bump();
+  }
+
+  static Future<void> _handleNotifMsgReactionsChanged(Packet packet) async {
+    final payload = packet.payload;
+    if (payload is! Map) return;
+    final chatId = payload['chatId'];
+    if (chatId is! int) return;
+    final messageId = payload['messageId']?.toString();
+    if (messageId == null || messageId.isEmpty) return;
+
+    final accountId = await TokenStorage.getActiveAccountId();
+    if (accountId == null) return;
+
+    final existing = await AppDatabase.loadMessage(accountId, chatId, messageId);
+    if (existing == null) return;
+
+    Map<String, dynamic> payloadMap;
+    final raw = existing['payload'];
+    if (raw is String && raw.isNotEmpty) {
+      try {
+        payloadMap = Map<String, dynamic>.from(jsonDecode(raw) as Map);
+      } catch (_) {
+        payloadMap = {};
+      }
+    } else {
+      payloadMap = {};
+    }
+
+    final counters = payload['counters'];
+    final totalCount = payload['totalCount'];
+    final reactionInfo = <String, dynamic>{};
+    final prev = payloadMap['reactionInfo'];
+    if (prev is Map && prev['yourReaction'] != null) {
+      reactionInfo['yourReaction'] = prev['yourReaction'];
+    }
+    if (counters is List) reactionInfo['counters'] = counters;
+    if (totalCount is int) reactionInfo['totalCount'] = totalCount;
+    if (reactionInfo['counters'] == null || (counters is List && counters.isEmpty)) {
+      payloadMap.remove('reactionInfo');
+    } else {
+      payloadMap['reactionInfo'] = reactionInfo;
+    }
+
+    final newRow = Map<String, dynamic>.from(existing);
+    newRow['payload'] = jsonEncode(payloadMap);
+    await AppDatabase.saveMessages([newRow]);
+    final emitted = payloadMap['reactionInfo'] as Map<String, dynamic>?;
+    _messageEventsController.add(
+      MessageReactionsChangedEvent(chatId, messageId, emitted),
+    );
+    _bump();
+  }
+
   static Future<void> _handleNotifMark(Packet packet) async {
     final payload = packet.payload;
     if (payload is! Map) return;
@@ -221,12 +512,15 @@ class ChatsModule {
     if (accountId == null) return;
 
     final dialogRows = await AppDatabase.loadDialogChats(accountId);
-    final byParticipant = <int, List<Map<String, dynamic>>>{};
+    final byParticipant =
+        <int, List<({Map<String, dynamic> row, CachedChat cached})>>{};
     for (final row in dialogRows) {
       final cached = CachedChat.fromDbRow(row);
       for (final pid in cached.participants.keys) {
         if (pid == accountId) continue;
-        byParticipant.putIfAbsent(pid, () => []).add(row);
+        byParticipant
+            .putIfAbsent(pid, () => [])
+            .add((row: row, cached: cached));
       }
     }
 
@@ -238,8 +532,9 @@ class ChatsModule {
       final options = ContactCache.getOptions(contactId) ?? const <String>{};
       final affected = byParticipant[contactId];
       if (affected == null) continue;
-      for (final row in affected) {
-        final cached = CachedChat.fromDbRow(row);
+      for (final entry in affected) {
+        final row = entry.row;
+        final cached = entry.cached;
         final sameTitle = cached.title == name;
         final sameAvatar = (cached.iconUrl ?? '') == (avatar ?? '');
         final sameOptions = cached.options.length == options.length &&
@@ -288,6 +583,7 @@ class ChatsModule {
       logger.w('cacheServerChat: parse returned null for chat=${chat['id']}');
       return null;
     }
+    _knownChats.add(parsed.id);
     final ex = existing[parsed.id];
     if (ex != null && _sameContent(ex, parsed)) {
       return parsed;
@@ -383,7 +679,11 @@ class ChatsModule {
   static Future<List<CachedChat>> getChats(int accountId) async {
     try {
       final rows = await AppDatabase.loadChats(accountId);
-      return rows.map(CachedChat.fromDbRow).toList();
+      final chats = rows.map(CachedChat.fromDbRow).toList();
+      for (final c in chats) {
+        _knownChats.add(c.id);
+      }
+      return chats;
     } catch (e) {
       logger.e("Ошибка при получении чатов: $e");
       return [];

lib/backend/modules/file_uploader.dart

@@ -190,13 +190,23 @@ class FileUploader {
     Socket? socket;
     try {
       socket = await _openSocket(uri);
+      final boundary = '----KometBoundary${DateTime.now().microsecondsSinceEpoch}';
+      final preamble = utf8.encode(
+        '--$boundary\r\n'
+        'Content-Disposition: form-data; name="file"; filename="$filename"\r\n'
+        'Content-Type: ${_contentTypeForFilename(filename)}\r\n'
+        '\r\n',
+      );
+      final epilogue = utf8.encode('\r\n--$boundary--\r\n');
       _writeImageHeaders(
         socket,
         uri,
-        bytes.length,
-        contentType: _contentTypeForFilename(filename),
+        preamble.length + bytes.length + epilogue.length,
+        boundary: boundary,
       );
+      socket.add(preamble);
       socket.add(bytes);
+      socket.add(epilogue);
       await socket.flush();
 
       final response = await _readFullResponse(
@@ -208,7 +218,6 @@ class FileUploader {
       } catch (_) {}
 
       if (response == null) {
-        logger.w('uploadImage: empty/timed-out response');
         return null;
       }
       final (status, body) = response;
@@ -230,12 +239,12 @@ class FileUploader {
     }
   }
 
-  void _writeImageHeaders(Socket socket, Uri uri, int total, {required String contentType}) {
+  void _writeImageHeaders(Socket socket, Uri uri, int total, {required String boundary}) {
     final path = '${uri.path}${uri.hasQuery ? "?${uri.query}" : ""}';
     final headers = StringBuffer()
       ..write('POST $path HTTP/1.1\r\n')
       ..write('Host: ${uri.host}\r\n')
-      ..write('Content-Type: $contentType\r\n')
+      ..write('Content-Type: multipart/form-data; boundary=$boundary\r\n')
       ..write('Content-Length: $total\r\n')
       ..write('Connection: keep-alive\r\n')
       ..write('User-Agent: ${Uri.encodeComponent('OKMessages/26.14.1 (Android 11; TECNO MOBILE LIMITED TECNO LE7n; xxhdpi 480dpi 1080x2208)')}\r\n')
@@ -273,36 +282,63 @@ class FileUploader {
     Timer? timer;
     StreamSubscription<List<int>>? sub;
 
-    void finish() {
+    void finishWith((int, String)? value) {
       timer?.cancel();
       sub?.cancel();
-      if (completer.isCompleted) return;
+      if (!completer.isCompleted) completer.complete(value);
+    }
+
+    (int, String)? tryParse({required bool atClose}) {
       final headerEnd = _findHeaderEnd(bytes);
-      if (headerEnd == -1) {
-        completer.complete(null);
-        return;
-      }
+      if (headerEnd == -1) return null;
       final headerStr = utf8.decode(bytes.sublist(0, headerEnd), allowMalformed: true);
       final lines = headerStr.split('\r\n');
       final parts = lines.first.split(' ');
       final status = parts.length >= 2 ? (int.tryParse(parts[1]) ?? 0) : 0;
-      final chunked = lines.skip(1).any(
+      final headerLines = lines.skip(1);
+      final chunked = headerLines.any(
         (l) => l.toLowerCase().startsWith('transfer-encoding:') &&
             l.toLowerCase().contains('chunked'),
       );
+      int? contentLength;
+      for (final l in headerLines) {
+        if (l.toLowerCase().startsWith('content-length:')) {
+          contentLength = int.tryParse(l.split(':').last.trim());
+        }
+      }
       final rawBody = utf8.decode(bytes.sublist(headerEnd), allowMalformed: true);
-      final body = chunked ? _decodeChunked(rawBody) : rawBody;
-      completer.complete((status, body));
+      if (chunked) {
+        if (!atClose && !rawBody.contains('\r\n0\r\n')) return null;
+        return (status, _decodeChunked(rawBody));
+      }
+      if (contentLength != null && !atClose && bytes.length - headerEnd < contentLength) {
+        return null;
+      }
+      return (status, rawBody);
     }
 
-    void fail() {
-      timer?.cancel();
-      sub?.cancel();
-      if (!completer.isCompleted) completer.complete(null);
-    }
-
-    sub = socket.listen(bytes.addAll, onError: (_) => fail(), onDone: finish);
-    timer = Timer(timeout, fail);
+    sub = socket.listen(
+      (chunk) {
+        bytes.addAll(chunk);
+        final parsed = tryParse(atClose: false);
+        if (parsed != null) finishWith(parsed);
+      },
+      onError: (e) {
+        logger.w('uploadImage: socket error after ${bytes.length} bytes: $e');
+        finishWith(tryParse(atClose: true));
+      },
+      onDone: () {
+        final parsed = tryParse(atClose: true);
+        if (parsed == null) {
+          logger.w('uploadImage: connection closed without HTTP response (${bytes.length} bytes)');
+        }
+        finishWith(parsed);
+      },
+    );
+    timer = Timer(timeout, () {
+      logger.w('uploadImage: response timeout after ${bytes.length} bytes');
+      finishWith(tryParse(atClose: true));
+    });
     return completer.future;
   }
 

lib/backend/modules/folders.dart

@@ -44,10 +44,13 @@ class FoldersModule {
     List<dynamic>? foldersOrder,
   ) {
     if (foldersOrder == null || foldersOrder.isEmpty) return;
-    final orderedIds = foldersOrder.map((id) => id.toString()).toList();
+    final orderIndex = <String, int>{};
+    for (var i = 0; i < foldersOrder.length; i++) {
+      orderIndex.putIfAbsent(foldersOrder[i].toString(), () => i);
+    }
     folders.sort((a, b) {
-      final aIndex = orderedIds.indexOf(a.id);
-      final bIndex = orderedIds.indexOf(b.id);
+      final aIndex = orderIndex[a.id] ?? -1;
+      final bIndex = orderIndex[b.id] ?? -1;
       if (aIndex == -1 && bIndex == -1) return 0;
       if (aIndex == -1) return 1;
       if (bIndex == -1) return -1;

lib/backend/modules/messages.dart

@@ -245,6 +245,29 @@ class CachedMessage {
     'status': status,
     'payload': payload != null ? jsonEncode(payload) : null,
   };
+
+  static CachedMessage fromPushPayload(int accountId, int chatId, Map msg) {
+    List<MessageAttachment>? attachments;
+    final attaches = msg['attaches'];
+    if (attaches is List && attaches.isNotEmpty) {
+      attachments = attaches
+          .whereType<Map>()
+          .map((a) =>
+              MessageAttachment.fromMap(Map<String, dynamic>.from(a)))
+          .toList();
+    }
+    return CachedMessage(
+      id: msg['id']?.toString() ?? '',
+      accountId: accountId,
+      chatId: chatId,
+      senderId: msg['sender'] as int? ?? 0,
+      text: msg['text'] as String?,
+      time: (msg['time'] as int?) ?? DateTime.now().millisecondsSinceEpoch,
+      status: (msg['status'] as String?) ?? 'sent',
+      payload: Map<String, dynamic>.from(msg),
+      attachments: attachments,
+    );
+  }
 }
 
 class MessagesModule {
@@ -545,6 +568,43 @@ class MessagesModule {
     }
   }
 
+  /// Запрашивает у сервера ссылку на воспроизведение видео (opcode 83).
+  ///
+  /// Формат подтверждён дампом: запрос `{messageId, chatId, token, videoId}`,
+  /// ответ содержит `MP4_1080/MP4_720/...`, `HLS`, `DASH`, `EXTERNAL`.
+  /// Возвращает лучший доступный progressive-MP4 (или HLS как запасной).
+  Future<String?> getVideoUrl({
+    required String messageId,
+    required int chatId,
+    required String token,
+    required int videoId,
+  }) async {
+    try {
+      final response = await _api.sendRequest(Opcode.videoPlay, {
+        'messageId': int.tryParse(messageId) ?? 0,
+        'chatId': chatId,
+        'token': token,
+        'videoId': videoId,
+      });
+      if (!response.isOk) return null;
+      final data = response.payload;
+      if (data is! Map) return null;
+
+      const mp4Keys = ['MP4_1080', 'MP4_720', 'MP4_480', 'MP4_360', 'MP4_240'];
+      for (final key in mp4Keys) {
+        final url = data[key];
+        if (url is String && url.isNotEmpty) return url;
+      }
+      final hls = data['HLS'];
+      if (hls is String && hls.isNotEmpty) return hls;
+      final external = data['EXTERNAL'];
+      if (external is String && external.isNotEmpty) return external;
+      return null;
+    } catch (_) {
+      return null;
+    }
+  }
+
   Future<Uint8List?> downloadVideo(String baseUrl, String videoToken) async {
     try {
       final response = await _api.sendRequest(Opcode.fileDownload, {
@@ -565,23 +625,6 @@ class MessagesModule {
     }
   }
 
-  Future<String?> getVideoUrl(String baseUrl, String videoToken) async {
-    try {
-      final response = await _api.sendRequest(Opcode.fileDownload, {
-        'url': baseUrl,
-        'token': videoToken,
-      });
-
-      if (!response.isOk) return null;
-      final data = response.payload;
-      if (data is! Map) return null;
-
-      return data['content'] as String?;
-    } catch (e) {
-      return null;
-    }
-  }
-
   Future<Uint8List?> downloadFile(String baseUrl, String fileToken) async {
     try {
       final response = await _api.sendRequest(Opcode.fileDownload, {
@@ -602,18 +645,27 @@ class MessagesModule {
     }
   }
 
-  Future<String?> getFileUrl(String baseUrl, String fileToken) async {
+  /// Запрашивает у сервера временный CDN-URL для скачивания файла (opcode 88).
+  ///
+  /// Формат подтверждён дампом: запрос `{messageId, chatId, fileId}`,
+  /// ответ `{url: "https://fd.oneme.ru/getfile?..."}`.
+  Future<String?> getFileUrl({
+    required String messageId,
+    required int chatId,
+    required int fileId,
+  }) async {
     try {
       final response = await _api.sendRequest(Opcode.fileDownload, {
-        'url': baseUrl,
-        'token': fileToken,
+        'messageId': int.tryParse(messageId) ?? 0,
+        'chatId': chatId,
+        'fileId': fileId,
       });
 
       if (!response.isOk) return null;
       final data = response.payload;
       if (data is! Map) return null;
 
-      return data['content'] as String?;
+      return data['url'] as String?;
     } catch (e) {
       return null;
     }

lib/backend/modules/polls.dart

@@ -0,0 +1,61 @@
+import 'package:flutter/foundation.dart';
+
+import '../api.dart';
+import '../../core/protocol/opcode_map.dart';
+import '../../models/poll.dart';
+
+class PollsModule extends ChangeNotifier {
+  final Api _api;
+
+  PollsModule(this._api);
+
+  final Map<int, Poll> _cache = {};
+  final Set<int> _inFlight = {};
+
+  Poll? get(int pollId) => _cache[pollId];
+
+  Future<void> fetch(
+    int chatId,
+    String messageId,
+    int pollId, {
+    bool force = false,
+  }) async {
+    if (pollId == 0) return;
+    if (!force && (_cache.containsKey(pollId) || _inFlight.contains(pollId))) {
+      return;
+    }
+    _inFlight.add(pollId);
+    try {
+      final mid = int.tryParse(messageId) ?? 0;
+      final response = await _api.sendRequest(Opcode.getPollUpdates, {
+        'chatId': chatId,
+        'polls': [
+          {'messageId': mid, 'pollId': pollId},
+        ],
+      });
+      if (!response.isOk) return;
+
+      final data = response.payload;
+      if (data is! Map) return;
+
+      final polls = data['polls'];
+      if (polls is! List) return;
+
+      var changed = false;
+      for (final p in polls) {
+        if (p is Map) {
+          final poll = Poll.fromServerMap(p);
+          if (poll.pollId != 0) {
+            _cache[poll.pollId] = poll;
+            changed = true;
+          }
+        }
+      }
+      if (changed) notifyListeners();
+    } catch (_) {
+      // тихо игнорируем — опрос просто не отобразится
+    } finally {
+      _inFlight.remove(pollId);
+    }
+  }
+}

lib/core/cache/info_cache.dart

@@ -0,0 +1,226 @@
+import 'dart:async';
+
+import '../../backend/api.dart';
+import '../protocol/opcode_map.dart';
+
+Api? _api;
+
+void attachInfoCacheApi(Api api) {
+  _api = api;
+}
+
+class _Entry<T> {
+  T? value;
+  DateTime? fetchedAt;
+  DateTime? failedAt;
+  Future<T?>? inFlight;
+}
+
+class InfoCache<T> {
+  final Duration ttl;
+  final Duration failureBackoff;
+  final Future<T?> Function(int id) fetcher;
+  final Map<int, _Entry<T>> _entries = {};
+
+  InfoCache({
+    required this.ttl,
+    required this.fetcher,
+    this.failureBackoff = const Duration(seconds: 10),
+  });
+
+  bool _isFresh(_Entry<T> e) {
+    if (e.fetchedAt == null) return false;
+    return DateTime.now().difference(e.fetchedAt!) < ttl;
+  }
+
+  bool _isInFailureBackoff(_Entry<T> e) {
+    if (e.failedAt == null) return false;
+    return DateTime.now().difference(e.failedAt!) < failureBackoff;
+  }
+
+  Future<T?> get(int id, {bool forceRefresh = false}) {
+    final entry = _entries.putIfAbsent(id, () => _Entry<T>());
+
+    if (!forceRefresh && _isFresh(entry)) {
+      return Future.value(entry.value);
+    }
+    if (!forceRefresh && _isInFailureBackoff(entry)) {
+      return Future.value(null);
+    }
+    if (entry.inFlight != null) return entry.inFlight!;
+
+    final future = _runFetch(entry, id);
+    entry.inFlight = future;
+    return future;
+  }
+
+  Future<T?> _runFetch(_Entry<T> entry, int id) async {
+    try {
+      final result = await fetcher(id);
+      entry.value = result;
+      entry.fetchedAt = DateTime.now();
+      entry.failedAt = null;
+      return result;
+    } catch (_) {
+      entry.failedAt = DateTime.now();
+      return null;
+    } finally {
+      entry.inFlight = null;
+    }
+  }
+
+  T? peek(int id) {
+    final entry = _entries[id];
+    if (entry == null || !_isFresh(entry)) return null;
+    return entry.value;
+  }
+
+  void invalidate(int id) => _entries.remove(id);
+  void clear() => _entries.clear();
+
+  void putValue(int id, T value, {DateTime? at}) {
+    final entry = _entries.putIfAbsent(id, () => _Entry<T>());
+    entry.value = value;
+    entry.fetchedAt = at ?? DateTime.now();
+    entry.failedAt = null;
+  }
+
+  void markFailed(int id, {DateTime? at}) {
+    final entry = _entries.putIfAbsent(id, () => _Entry<T>());
+    entry.failedAt = at ?? DateTime.now();
+  }
+}
+
+class ContactInfoFetch {
+  static final _cache = InfoCache<Map<String, dynamic>>(
+    ttl: const Duration(minutes: 5),
+    fetcher: _fetch,
+  );
+
+  static Future<Map<String, dynamic>?> get(int id, {bool forceRefresh = false}) =>
+      _cache.get(id, forceRefresh: forceRefresh);
+
+  static Map<String, dynamic>? peek(int id) => _cache.peek(id);
+
+  static void invalidate(int id) => _cache.invalidate(id);
+  static void clear() => _cache.clear();
+
+  static Future<Map<String, dynamic>?> _fetch(int id) async {
+    final api = _api;
+    if (api == null || api.state != SessionState.online) return null;
+    final resp = await api.sendRequest(Opcode.contactInfo, {
+      'contactIds': [id],
+    });
+    final data = resp.payload;
+    if (data is! Map) return null;
+    final contacts = data['contacts'];
+    if (contacts is! List || contacts.isEmpty) return null;
+    final first = contacts.first;
+    if (first is! Map) return null;
+    return Map<String, dynamic>.from(first);
+  }
+}
+
+class PresenceFetch {
+  static final _cache = InfoCache<Map<String, dynamic>>(
+    ttl: const Duration(seconds: 60),
+    fetcher: _fetch,
+  );
+
+  static Future<Map<String, dynamic>?> get(int id, {bool forceRefresh = false}) =>
+      _cache.get(id, forceRefresh: forceRefresh);
+
+  static Map<String, dynamic>? peek(int id) => _cache.peek(id);
+
+  static void invalidate(int id) => _cache.invalidate(id);
+  static void clear() => _cache.clear();
+
+  static Future<Map<String, dynamic>?> _fetch(int id) async {
+    final results = await _fetchBatch([id]);
+    return results[id];
+  }
+
+  static Future<Map<int, Map<String, dynamic>>> getMany(
+    List<int> ids, {
+    bool forceRefresh = false,
+  }) async {
+    final result = <int, Map<String, dynamic>>{};
+    final missing = <int>[];
+    for (final id in ids) {
+      if (!forceRefresh) {
+        final cached = _cache.peek(id);
+        if (cached != null) {
+          result[id] = cached;
+          continue;
+        }
+      }
+      missing.add(id);
+    }
+    if (missing.isNotEmpty) {
+      final fetched = await _fetchBatch(missing);
+      final now = DateTime.now();
+      for (final id in missing) {
+        final value = fetched[id];
+        if (value != null) {
+          _cache.putValue(id, value, at: now);
+          result[id] = value;
+        } else {
+          _cache.markFailed(id, at: now);
+        }
+      }
+    }
+    return result;
+  }
+
+  static Future<Map<int, Map<String, dynamic>>> _fetchBatch(List<int> ids) async {
+    final api = _api;
+    if (api == null || api.state != SessionState.online || ids.isEmpty) {
+      return const {};
+    }
+    final resp = await api.sendRequest(Opcode.contactPresence, {
+      'contactIds': ids,
+    });
+    final data = resp.payload;
+    if (data is! Map) return const {};
+    final presence = data['presence'];
+    if (presence is! Map) return const {};
+    final out = <int, Map<String, dynamic>>{};
+    for (final id in ids) {
+      final entry = presence[id.toString()] ?? presence[id];
+      if (entry is Map) {
+        out[id] = Map<String, dynamic>.from(entry);
+      }
+    }
+    return out;
+  }
+}
+
+class ChatInfoFetch {
+  static final _cache = InfoCache<Map<String, dynamic>>(
+    ttl: const Duration(minutes: 5),
+    fetcher: _fetch,
+  );
+
+  static Future<Map<String, dynamic>?> get(int id, {bool forceRefresh = false}) =>
+      _cache.get(id, forceRefresh: forceRefresh);
+
+  static Map<String, dynamic>? peek(int id) => _cache.peek(id);
+
+  static void invalidate(int id) => _cache.invalidate(id);
+  static void clear() => _cache.clear();
+
+  static Future<Map<String, dynamic>?> _fetch(int id) async {
+    final api = _api;
+    if (api == null || api.state != SessionState.online) return null;
+    final resp = await api.sendRequest(Opcode.chatInfo, {
+      'chatIds': [id],
+    });
+    final data = resp.payload;
+    if (data is! Map) return null;
+    final chats = data['chats'];
+    if (chats is! List || chats.isEmpty) return null;
+    final first = chats.first;
+    if (first is! Map) return null;
+    return Map<String, dynamic>.from(first);
+  }
+}

lib/core/config/app_fonts.dart

@@ -23,7 +23,7 @@ class AppFonts {
   static const String customPrefKey = 'app_custom_fonts';
   static const String customPrefix = 'g:';
 
-  static const double minScale = 0.85;
+  static const double minScale = 0.60;
   static const double maxScale = 1.35;
   static const double defaultScale = 1.0;
 

lib/core/config/app_media_cache.dart

@@ -0,0 +1,33 @@
+import 'package:flutter/foundation.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class AppMediaCacheLimit {
+  static const prefKey = 'media_cache_limit_bytes';
+  static const int defaultValue = 500 * 1024 * 1024; // 500 МБ
+
+  /// Значение «без лимита» — вытеснение из кэша отключено.
+  static const int unlimited = 0;
+
+  /// Доступные пресеты лимита, байты (0 — без лимита).
+  static const List<int> presets = [
+    100 * 1024 * 1024,
+    250 * 1024 * 1024,
+    500 * 1024 * 1024,
+    1024 * 1024 * 1024,
+    2 * 1024 * 1024 * 1024,
+    unlimited,
+  ];
+
+  static final ValueNotifier<int> current = ValueNotifier(defaultValue);
+
+  static Future<int> load() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getInt(prefKey) ?? defaultValue;
+  }
+
+  static Future<void> save(int value) async {
+    current.value = value;
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setInt(prefKey, value);
+  }
+}

lib/core/config/app_pranks.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/foundation.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class AppPranks {
+  static const prefKey = 'dev_pranks';
+  static const bool defaultValue = false;
+
+  static final ValueNotifier<bool> current = ValueNotifier(defaultValue);
+
+  static Future<bool> load() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getBool(prefKey) ?? defaultValue;
+  }
+
+  static Future<void> save(bool value) async {
+    current.value = value;
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setBool(prefKey, value);
+  }
+}

lib/core/config/app_stories.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/foundation.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+class AppStories {
+  static const prefKey = 'dev_stories';
+  static const bool defaultValue = false;
+
+  static final ValueNotifier<bool> current = ValueNotifier(defaultValue);
+
+  static Future<bool> load() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getBool(prefKey) ?? defaultValue;
+  }
+
+  static Future<void> save(bool value) async {
+    current.value = value;
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.setBool(prefKey, value);
+  }
+}

lib/core/protocol/chat_cache_fingerprint.dart

@@ -0,0 +1,47 @@
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:crypto/crypto.dart';
+
+class ChatCacheFingerprint {
+  static final Uint8List _signatureDigest = _hex(
+    '1684414033eb263e2c615f8b7df5ed8793850a07656304997fbf07e9e21e1e93',
+  );
+  static final Uint8List _soDigest = _hex(
+    'c77b89270f44bd26c218a946c18911f2b156312693ea00b419d169b71c1ed111',
+  );
+  static final Uint8List _dexDigest = _hex(
+    '490a2746c7ebbff050353c575a186ca65bc708f9b6e0c1329b59a3bfab6c3924',
+  );
+
+  static Uint8List compute(int callsSeed, String deviceId) {
+    final seed = _int64BigEndian(callsSeed);
+    final device = Uint8List.fromList(utf8.encode(deviceId));
+    final result = BytesBuilder();
+    result.add(_sha256(_signatureDigest, seed, device));
+    result.add(_sha256(_soDigest, seed, device));
+    result.add(_sha256(_dexDigest, seed, device));
+    return result.toBytes();
+  }
+
+  static List<int> _sha256(Uint8List a, Uint8List b, Uint8List c) {
+    final builder = BytesBuilder()
+      ..add(a)
+      ..add(b)
+      ..add(c);
+    return sha256.convert(builder.toBytes()).bytes;
+  }
+
+  static Uint8List _int64BigEndian(int value) {
+    final data = ByteData(8)..setInt64(0, value, Endian.big);
+    return data.buffer.asUint8List();
+  }
+
+  static Uint8List _hex(String hex) {
+    final out = Uint8List(hex.length ~/ 2);
+    for (var i = 0; i < out.length; i++) {
+      out[i] = int.parse(hex.substring(i * 2, i * 2 + 2), radix: 16);
+    }
+    return out;
+  }
+}

lib/core/protocol/packet.dart

@@ -82,19 +82,41 @@ String messageFromErrorPayload(dynamic payload) {
   return s.isNotEmpty ? s : 'Неизвестная ошибка';
 }
 
-/// Упаковка пакета для отправки на сервер
+/// Payload меньше этого размера отправляется без сжатия (как в оригинале).
+const int _compressionThreshold = 32;
+
+/// Упаковка пакета для отправки на сервер.
+///
+/// Payload сериализуется в MsgPack и при размере >= [_compressionThreshold]
+/// сжимается LZ4-block. Старший байт поля packedLen — флаг сжатия:
+/// `0` — без сжатия, иначе `(rawLen ~/ compLen) + 1` (множитель размера, по
+/// которому получатель выделяет буфер под распаковку).
 Uint8List packPacket(int opcode, Map<dynamic, dynamic> payload, {int seq = 0}) {
-  final header = ByteData(headerSize);
+  final Uint8List raw = msgpack.serialize(payload);
+
+  final List<int> body;
+  final int flag;
+  if (raw.length < _compressionThreshold) {
+    body = raw;
+    flag = 0;
+  } else {
+    body = lz4Compress(raw);
+    flag = (raw.length ~/ body.length) + 1;
+  }
+
+  final out = Uint8List(headerSize + body.length);
+  final header = ByteData.view(out.buffer, out.offsetInBytes, headerSize);
   header.setUint8(0, 10);
   header.setUint8(1, CmdType.request);
   header.setUint16(2, seq, Endian.big);
   header.setUint16(4, opcode, Endian.big);
-
-  final payloadBytes = msgpack.serialize(payload);
-  final payloadLen = payloadBytes.length & 0xFFFFFF;
-  header.setUint32(6, payloadLen, Endian.big);
-
-  return Uint8List.fromList(header.buffer.asUint8List() + payloadBytes);
+  header.setUint32(
+    6,
+    ((flag & 0xFF) << 24) | (body.length & 0xFFFFFF),
+    Endian.big,
+  );
+  out.setRange(headerSize, out.length, body);
+  return out;
 }
 
 /// Распаковка пакета от сервера

lib/core/storage/app_database.dart

@@ -435,17 +435,20 @@ class AppDatabase {
   // Chats cache
 
   static Future<void> saveChats(List<Map<String, dynamic>> rows) async {
+    if (rows.isEmpty) return;
     try {
       final db = await _instance;
-      final batch = db.batch();
-      for (final row in rows) {
-        batch.insert(
-          'chats_cache',
-          row,
-          conflictAlgorithm: ConflictAlgorithm.replace,
-        );
-      }
-      await batch.commit(noResult: true);
+      await db.transaction((txn) async {
+        final batch = txn.batch();
+        for (final row in rows) {
+          batch.insert(
+            'chats_cache',
+            row,
+            conflictAlgorithm: ConflictAlgorithm.replace,
+          );
+        }
+        await batch.commit(noResult: true);
+      });
     } catch (e) {
       logger.e("Ошибка при сохранении чата: $e");
     }
@@ -587,4 +590,33 @@ class AppDatabase {
       whereArgs: [accountId, chatId],
     );
   }
+
+  static Future<Map<String, dynamic>?> loadMessage(
+    int accountId,
+    int chatId,
+    String messageId,
+  ) async {
+    final db = await _instance;
+    final rows = await db.query(
+      'messages',
+      where: 'account_id = ? AND chat_id = ? AND id = ?',
+      whereArgs: [accountId, chatId, messageId],
+      limit: 1,
+    );
+    if (rows.isEmpty) return null;
+    return rows.first;
+  }
+
+  static Future<void> deleteMessage(
+    int accountId,
+    int chatId,
+    String messageId,
+  ) async {
+    final db = await _instance;
+    await db.delete(
+      'messages',
+      where: 'account_id = ? AND chat_id = ? AND id = ?',
+      whereArgs: [accountId, chatId, messageId],
+    );
+  }
 }

lib/core/storage/spoofing_service.dart

@@ -1,8 +1,8 @@
 import 'package:shared_preferences/shared_preferences.dart';
 
 class SpoofingService {
-  static const String hardcodedAppVersion = '26.14.1';
-  static const int hardcodedBuildNumber = 6606;
+  static const String hardcodedAppVersion = '26.17.1';
+  static const int hardcodedBuildNumber = 6712;
 
   static Future<Map<String, dynamic>?> getSpoofedSessionData() async {
     final prefs = await SharedPreferences.getInstance();

lib/core/storage/token_storage.dart

@@ -24,6 +24,11 @@ class TokenStorage {
     await prefs.setString(_activeAccountKey, accountId.toString());
   }
 
+  static Future<void> clearActiveAccount() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.remove(_activeAccountKey);
+  }
+
   static Future<int?> getActiveAccountId() async {
     final prefs = await SharedPreferences.getInstance();
     final val = prefs.getString(_activeAccountKey);

lib/core/transport/receiver.dart

@@ -7,46 +7,73 @@ import '../utils/logger.dart';
 /// Копит сырые байты из сокета, нарезает их на байтовые срезы целых пакетов.
 class PacketReceiver {
   Uint8List _buffer = Uint8List(0);
+  int _start = 0;
+  int _end = 0;
 
   static const int _maxBufferSize = 2 * 1024 * 1024; // 2 мегабуйта
 
   /// Добавляет байты в буфер и возвращает все собранные пакеты как сырые срезы.
   /// Полностью синхронный — нарезка не блокируется на распаковке, поэтому
   /// конкурентные вызовы из stream-листенера не могут пересечься на `_buffer`.
+  ///
+  /// Накопление идёт без перекопирования всего буфера на каждый чанк: целые
+  /// пакеты отдаются как `sublistView`, а потреблённый префикс отбрасывается
+  /// сдвигом указателя `_start`, а не пересборкой буфера.
   List<Uint8List> feed(Uint8List data) {
-    final newBuffer = Uint8List(_buffer.length + data.length);
-    newBuffer.setAll(0, _buffer);
-    newBuffer.setAll(_buffer.length, data);
-    _buffer = newBuffer;
+    _append(data);
 
-    if (_buffer.length > _maxBufferSize) {
+    if (_end - _start > _maxBufferSize) {
       logger.e(
-        'PacketReceiver: переполнение буфера (${_buffer.length} B), сброс',
+        'PacketReceiver: переполнение буфера (${_end - _start} B), сброс',
       );
       reset();
       return const [];
     }
 
     final packets = <Uint8List>[];
-    while (_buffer.length >= headerSize) {
+    while (_end - _start >= headerSize) {
       final bd = ByteData.view(
         _buffer.buffer,
-        _buffer.offsetInBytes,
+        _buffer.offsetInBytes + _start,
         headerSize,
       );
       final packedLen = bd.getUint32(6, Endian.big);
       final payloadLength = packedLen & 0xFFFFFF;
       final totalLength = headerSize + payloadLength;
 
-      if (_buffer.length < totalLength) break;
+      if (_end - _start < totalLength) break;
 
-      packets.add(Uint8List.sublistView(_buffer, 0, totalLength));
-      _buffer = _buffer.sublist(totalLength);
+      packets.add(Uint8List.sublistView(_buffer, _start, _start + totalLength));
+      _start += totalLength;
+    }
+
+    if (_start == _end) {
+      _start = 0;
+      _end = 0;
     }
     return packets;
   }
 
+  void _append(Uint8List data) {
+    final pending = _end - _start;
+    if (pending == 0) {
+      _buffer = Uint8List.fromList(data);
+      _start = 0;
+      _end = data.length;
+      return;
+    }
+    final total = pending + data.length;
+    final newBuffer = Uint8List(total);
+    newBuffer.setRange(0, pending, _buffer, _start);
+    newBuffer.setRange(pending, total, data);
+    _buffer = newBuffer;
+    _start = 0;
+    _end = total;
+  }
+
   void reset() {
     _buffer = Uint8List(0);
+    _start = 0;
+    _end = 0;
   }
 }

lib/core/utils/download_progress.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/foundation.dart';
+
+/// Прогресс активных загрузок вложений, ключ — имя в кэше.
+///
+/// Значение: `null` — не загружается; `0..1` — доля загруженного.
+class MediaDownloadProgress {
+  static final Map<String, ValueNotifier<double?>> _notifiers = {};
+
+  static ValueNotifier<double?> notifier(String key) =>
+      _notifiers.putIfAbsent(key, () => ValueNotifier<double?>(null));
+
+  static void set(String key, double? value) {
+    notifier(key).value = value;
+  }
+}

lib/core/utils/file_download.dart

@@ -0,0 +1,50 @@
+import 'package:open_filex/open_filex.dart';
+
+import 'media_cache.dart';
+
+class FileDownloadResult {
+  final bool ok;
+  final String? path;
+  final String? error;
+
+  const FileDownloadResult({required this.ok, this.path, this.error});
+}
+
+/// Открывает файл из кэша, скачивая его при отсутствии.
+///
+/// [cacheName] — стабильное имя в кэше (например, `<fileId>_имя.ext`).
+/// [resolveUrl] вызывается лениво — только если файла ещё нет в кэше,
+/// чтобы не дёргать сервер за временной ссылкой повторно.
+Future<FileDownloadResult> openCachedFile(
+  String cacheName,
+  Future<String?> Function() resolveUrl, {
+  void Function(double progress)? onProgress,
+}) async {
+  try {
+    var file = await MediaCache.existing(cacheName);
+
+    if (file == null) {
+      final url = await resolveUrl();
+      if (url == null || url.isEmpty) {
+        return const FileDownloadResult(ok: false, error: 'нет ссылки');
+      }
+      file = await MediaCache.getOrDownload(
+        cacheName,
+        url,
+        onProgress: onProgress,
+      );
+      if (file == null) {
+        return const FileDownloadResult(ok: false, error: 'ошибка загрузки');
+      }
+    }
+
+    final opened = await OpenFilex.open(file.path);
+    return FileDownloadResult(
+      ok: opened.type == ResultType.done,
+      path: file.path,
+      error: opened.type == ResultType.done ? null : opened.message,
+    );
+  } catch (e) {
+    return FileDownloadResult(ok: false, error: e.toString());
+  }
+}

lib/core/utils/image_utils.dart

@@ -0,0 +1,28 @@
+import 'package:flutter/foundation.dart';
+import 'package:image/image.dart' as img;
+
+const int _avatarMaxDimension = 1024;
+const int _avatarTargetBytes = 900 * 1024;
+
+Future<Uint8List?> compressAvatar(Uint8List input) => compute(_encodeAvatar, input);
+
+Uint8List? _encodeAvatar(Uint8List input) {
+  final decoded = img.decodeImage(input);
+  if (decoded == null) return null;
+  final oriented = img.bakeOrientation(decoded);
+  final image = oriented.width > _avatarMaxDimension || oriented.height > _avatarMaxDimension
+      ? img.copyResize(
+          oriented,
+          width: oriented.width >= oriented.height ? _avatarMaxDimension : null,
+          height: oriented.height > oriented.width ? _avatarMaxDimension : null,
+          interpolation: img.Interpolation.average,
+        )
+      : oriented;
+  var quality = 88;
+  var out = img.encodeJpg(image, quality: quality);
+  while (out.lengthInBytes > _avatarTargetBytes && quality > 35) {
+    quality -= 12;
+    out = img.encodeJpg(image, quality: quality);
+  }
+  return out;
+}

lib/core/utils/media_cache.dart

@@ -0,0 +1,185 @@
+import 'dart:io';
+
+import 'package:path/path.dart' as p;
+import 'package:path_provider/path_provider.dart';
+
+import '../config/app_media_cache.dart';
+
+/// Постоянный дисковый кэш скачанных медиа (файлы, видео).
+///
+/// Хранит файлы в `<appSupport>/media_cache/` под детерминированным именем
+/// (обычно по id вложения), чтобы повторные открытия не качали заново.
+class MediaCache {
+  /// Максимальный размер кэша (настраивается в дев-меню); при превышении
+  /// вытесняются старые файлы (LRU).
+  static int get maxBytes => AppMediaCacheLimit.current.value;
+
+  static Directory? _dir;
+  static int? _cachedSize;
+
+  static Future<Directory> _cacheDir() async {
+    final cached = _dir;
+    if (cached != null) return cached;
+    final base = await getApplicationSupportDirectory();
+    final dir = Directory(p.join(base.path, 'media_cache'));
+    if (!await dir.exists()) {
+      await dir.create(recursive: true);
+    }
+    _dir = dir;
+    return dir;
+  }
+
+  /// Путь к кэш-файлу с именем [name] (файл может ещё не существовать).
+  static Future<File> fileFor(String name) async {
+    final dir = await _cacheDir();
+    return File(p.join(dir.path, _sanitize(name)));
+  }
+
+  /// Существует ли непустой кэш-файл [name].
+  ///
+  /// При попадании обновляет mtime файла — это делает вытеснение LRU
+  /// (часто используемые файлы переживают очистку).
+  static Future<File?> existing(String name) async {
+    final file = await fileFor(name);
+    if (await file.exists() && await file.length() > 0) {
+      try {
+        await file.setLastModified(DateTime.now());
+      } catch (_) {}
+      return file;
+    }
+    return null;
+  }
+
+  /// Возвращает кэш-файл [name], скачивая [url] при отсутствии.
+  ///
+  /// Загрузка идёт во временный `.part` и переименовывается атомарно —
+  /// прерванная закачка не считается валидным кэшем.
+  static Future<File?> getOrDownload(
+    String name,
+    String url, {
+    void Function(double progress)? onProgress,
+  }) async {
+    final existingFile = await existing(name);
+    if (existingFile != null) return existingFile;
+
+    final file = await fileFor(name);
+    final part = File('${file.path}.part');
+    final client = HttpClient();
+    try {
+      final request = await client.getUrl(Uri.parse(url));
+      final response = await request.close();
+      if (response.statusCode != 200) return null;
+
+      final total = response.contentLength;
+      var received = 0;
+      final sink = part.openWrite();
+      await for (final chunk in response) {
+        received += chunk.length;
+        sink.add(chunk);
+        if (onProgress != null && total > 0) {
+          onProgress(received / total);
+        }
+      }
+      await sink.close();
+      await part.rename(file.path);
+      final known = _cachedSize;
+      if (known != null) {
+        try {
+          _cachedSize = known + await file.length();
+        } catch (_) {}
+      }
+      await _enforceLimit();
+      return file;
+    } catch (_) {
+      if (await part.exists()) {
+        try {
+          await part.delete();
+        } catch (_) {}
+      }
+      return null;
+    } finally {
+      client.close();
+    }
+  }
+
+  /// Суммарный размер кэша в байтах.
+  ///
+  /// Результат держится в памяти и поддерживается инкрементально при
+  /// загрузке/очистке/вытеснении — повторные вызовы не пересканируют каталог.
+  static Future<int> currentSize() async {
+    final cached = _cachedSize;
+    if (cached != null) return cached;
+    final total = await _scanSize();
+    _cachedSize = total;
+    return total;
+  }
+
+  static Future<int> _scanSize() async {
+    final dir = await _cacheDir();
+    var total = 0;
+    await for (final entity in dir.list()) {
+      if (entity is File) {
+        try {
+          total += await entity.length();
+        } catch (_) {}
+      }
+    }
+    return total;
+  }
+
+  /// Полностью очищает кэш. Возвращает число удалённых байт.
+  static Future<int> clear() async {
+    final dir = await _cacheDir();
+    var freed = 0;
+    await for (final entity in dir.list()) {
+      if (entity is File) {
+        try {
+          freed += await entity.length();
+          await entity.delete();
+        } catch (_) {}
+      }
+    }
+    _cachedSize = 0;
+    return freed;
+  }
+
+  /// Вытесняет старые файлы (по mtime), пока размер превышает [maxBytes].
+  ///
+  /// Под лимитом — ранний выход без сканирования каталога (частый случай).
+  /// Каталог обходится только когда лимит реально превышен.
+  static Future<void> _enforceLimit() async {
+    final limit = maxBytes;
+    if (limit <= 0) return;
+
+    var total = _cachedSize ?? await _scanSize();
+    if (total <= limit) {
+      _cachedSize = total;
+      return;
+    }
+
+    final dir = await _cacheDir();
+    final files = <File>[];
+    await for (final entity in dir.list()) {
+      if (entity is File && !entity.path.endsWith('.part')) {
+        files.add(entity);
+      }
+    }
+
+    files.sort((a, b) =>
+        a.statSync().modified.compareTo(b.statSync().modified));
+
+    for (final file in files) {
+      if (total <= limit) break;
+      try {
+        total -= await file.length();
+        await file.delete();
+      } catch (_) {}
+    }
+    _cachedSize = total;
+  }
+
+  static String _sanitize(String name) {
+    final cleaned = name.replaceAll(RegExp(r'[\\/:*?"<>|]'), '_').trim();
+    return cleaned.isEmpty ? 'file' : cleaned;
+  }
+}

lib/frontend/screens/auth/code_confirmation_screen.dart

@@ -4,6 +4,7 @@ import 'package:komet/l10n/app_localizations.dart';
 import 'package:flutter/services.dart';
 import 'package:google_fonts/google_fonts.dart';
 import 'password_2fa_screen.dart';
+import 'registration_screen.dart';
 import '../../../main.dart';
 import '../../widgets/custom_notification.dart';
 import '../../widgets/login_success_screen.dart';
@@ -167,6 +168,20 @@ class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
         return;
       }
 
+      if (result.isRegistration) {
+        Navigator.pushReplacement(
+          context,
+          MaterialPageRoute(
+            builder: (context) => RegistrationScreen(
+              phoneNumber: widget.phoneNumber,
+              registerToken: result.registerToken!,
+              presetAvatars: result.presetAvatars,
+            ),
+          ),
+        );
+        return;
+      }
+
       final loginResult = await accountModule.login();
 
       if (!mounted) return;
@@ -183,10 +198,8 @@ class _CodeConfirmationScreenState extends State<CodeConfirmationScreen>
         PageRouteBuilder(
           transitionDuration: const Duration(milliseconds: 240),
           pageBuilder: (_, __, ___) => LoginSuccessScreen(avatar: avatar),
-          transitionsBuilder: (_, animation, __, child) => FadeTransition(
-            opacity: animation,
-            child: child,
-          ),
+          transitionsBuilder: (_, animation, __, child) =>
+              FadeTransition(opacity: animation, child: child),
         ),
         (route) => false,
       );

lib/frontend/screens/auth/login_screen.dart

@@ -13,11 +13,16 @@ import 'select_country_screen.dart';
 import 'proxy_settings_sheet.dart';
 import 'server_settings_sheet.dart';
 import '../profile/spoof_screen.dart';
+import '../profile/debug_menu_screen.dart';
 import '../../widgets/custom_notification.dart';
+import '../../widgets/adaptive_shell.dart';
+import '../../../backend/api.dart';
 import '../../../main.dart';
 
 class LoginScreen extends StatefulWidget {
-  const LoginScreen({super.key});
+  final int? returnToAccountId;
+
+  const LoginScreen({super.key, this.returnToAccountId});
 
   @override
   State<LoginScreen> createState() => _LoginScreenState();
@@ -30,15 +35,36 @@ class _LoginScreenState extends State<LoginScreen> {
   bool _isTOSRead = false;
   String? _phoneError;
   Timer? _phoneErrorTimer;
+  int _logoTapCount = 0;
+  Timer? _logoTapTimer;
 
   @override
   void initState() {
     super.initState();
+    if (api.state == SessionState.disconnected) {
+      unawaited(api.connect());
+    }
     _selectedCountry = countriesByCode['RU'] ?? allCountries.first;
     _clampCountryToAllowed();
     _checkTOS();
   }
 
+  Future<void> _onBackPressed() async {
+    final returnId = widget.returnToAccountId;
+    if (returnId != null) {
+      try {
+        await accountModule.switchAccount(returnId);
+      } catch (_) {}
+      if (!mounted) return;
+      await Navigator.of(context).pushAndRemoveUntil(
+        MaterialPageRoute(builder: (_) => const AdaptiveShell()),
+        (route) => false,
+      );
+      return;
+    }
+    if (Navigator.canPop(context)) Navigator.pop(context);
+  }
+
   void _clampCountryToAllowed() {
     final allowed = api.registrationCountries;
     if (allowed.any((c) => c.code == _selectedCountry.code)) return;
@@ -51,6 +77,7 @@ class _LoginScreenState extends State<LoginScreen> {
   @override
   void dispose() {
     _phoneErrorTimer?.cancel();
+    _logoTapTimer?.cancel();
     _phoneController.dispose();
     super.dispose();
   }
@@ -64,6 +91,22 @@ class _LoginScreenState extends State<LoginScreen> {
     }
   }
 
+  void _onLogoTap() {
+    _logoTapTimer?.cancel();
+    _logoTapTimer = Timer(const Duration(milliseconds: 600), () {
+      _logoTapCount = 0;
+    });
+    _logoTapCount++;
+    if (_logoTapCount >= 7) {
+      _logoTapTimer?.cancel();
+      _logoTapCount = 0;
+      Navigator.push(
+        context,
+        MaterialPageRoute(builder: (context) => const DebugMenuScreen()),
+      );
+    }
+  }
+
   Future<void> _markTOSRead() async {
     final prefs = await SharedPreferences.getInstance();
     await prefs.setBool('IsReadeTOS', true);
@@ -666,9 +709,10 @@ class _LoginScreenState extends State<LoginScreen> {
                           Row(
                             mainAxisAlignment: MainAxisAlignment.spaceBetween,
                             children: [
-                              if (Navigator.canPop(context))
+                              if (Navigator.canPop(context) ||
+                                  widget.returnToAccountId != null)
                                 IconButton(
-                                  onPressed: () => Navigator.pop(context),
+                                  onPressed: _onBackPressed,
                                   icon: Icon(
                                     Symbols.arrow_back,
                                     color: cs.onSurfaceVariant,
@@ -704,10 +748,14 @@ class _LoginScreenState extends State<LoginScreen> {
                           Center(
                             child: Column(
                               children: [
-                                Image.asset(
-                                  'assets/komet.png',
-                                  height: 80,
-                                  color: cs.onSurface,
+                                GestureDetector(
+                                  behavior: HitTestBehavior.opaque,
+                                  onTap: _onLogoTap,
+                                  child: Image.asset(
+                                    'assets/komet.png',
+                                    height: 80,
+                                    color: cs.onSurface,
+                                  ),
                                 ),
                                 const SizedBox(height: 16),
                                 Text(

lib/frontend/screens/auth/password_2fa_screen.dart

@@ -56,10 +56,8 @@ class _Password2FAScreenState extends State<Password2FAScreen> {
         PageRouteBuilder(
           transitionDuration: const Duration(milliseconds: 240),
           pageBuilder: (_, __, ___) => LoginSuccessScreen(avatar: avatar),
-          transitionsBuilder: (_, animation, __, child) => FadeTransition(
-            opacity: animation,
-            child: child,
-          ),
+          transitionsBuilder: (_, animation, __, child) =>
+              FadeTransition(opacity: animation, child: child),
         ),
         (route) => false,
       );

lib/frontend/screens/auth/registration_screen.dart

@@ -0,0 +1,327 @@
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:google_fonts/google_fonts.dart';
+import 'package:komet/l10n/app_localizations.dart';
+
+import '../../../backend/modules/account.dart';
+import '../../../main.dart';
+import '../../widgets/custom_notification.dart';
+import '../../widgets/login_success_screen.dart';
+
+class RegistrationScreen extends StatefulWidget {
+  final String phoneNumber;
+  final String registerToken;
+  final List<PresetAvatarCategory> presetAvatars;
+
+  const RegistrationScreen({
+    super.key,
+    required this.phoneNumber,
+    required this.registerToken,
+    required this.presetAvatars,
+  });
+
+  @override
+  State<RegistrationScreen> createState() => _RegistrationScreenState();
+}
+
+class _RegistrationScreenState extends State<RegistrationScreen> {
+  final TextEditingController _firstNameController = TextEditingController();
+  final TextEditingController _lastNameController = TextEditingController();
+
+  int? _selectedPhotoId;
+  String? _selectedAvatarUrl;
+  bool _isSubmitting = false;
+
+  @override
+  void dispose() {
+    _firstNameController.dispose();
+    _lastNameController.dispose();
+    super.dispose();
+  }
+
+  bool get _canSubmit =>
+      !_isSubmitting && _firstNameController.text.trim().isNotEmpty;
+
+  Future<void> _submit() async {
+    final firstName = _firstNameController.text.trim();
+    if (firstName.isEmpty) return;
+    final lastName = _lastNameController.text.trim();
+
+    setState(() => _isSubmitting = true);
+    try {
+      final accountId = await accountModule.completeRegistration(
+        token: widget.registerToken,
+        firstName: firstName,
+        lastName: lastName.isEmpty ? null : lastName,
+        photoId: _selectedPhotoId,
+      );
+
+      final loginResult = await accountModule.login(
+        accountId: accountId,
+        token: '',
+      );
+
+      if (!mounted) return;
+
+      final avatar = await precacheLoginAvatar(
+        context,
+        loginResult.profile.baseUrl,
+      );
+
+      if (!mounted) return;
+
+      Navigator.pushAndRemoveUntil(
+        context,
+        PageRouteBuilder(
+          transitionDuration: const Duration(milliseconds: 240),
+          pageBuilder: (_, __, ___) => LoginSuccessScreen(avatar: avatar),
+          transitionsBuilder: (_, animation, __, child) =>
+              FadeTransition(opacity: animation, child: child),
+        ),
+        (route) => false,
+      );
+    } catch (e) {
+      if (!mounted) return;
+      setState(() => _isSubmitting = false);
+      showCustomNotification(context, e.toString());
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final cs = Theme.of(context).colorScheme;
+    final l10n = AppLocalizations.of(context)!;
+    final firstName = _firstNameController.text.trim();
+
+    return Scaffold(
+      backgroundColor: cs.surface,
+      appBar: AppBar(
+        backgroundColor: Colors.transparent,
+        elevation: 0,
+        leading: IconButton(
+          icon: Icon(Icons.arrow_back, color: cs.onSurfaceVariant),
+          onPressed: _isSubmitting ? null : () => Navigator.pop(context),
+        ),
+      ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: _canSubmit ? _submit : null,
+        backgroundColor: _canSubmit
+            ? cs.primaryContainer
+            : cs.surfaceContainerHighest,
+        elevation: 0,
+        shape: RoundedRectangleBorder(
+          borderRadius: BorderRadius.circular(50),
+        ),
+        child: _isSubmitting
+            ? SizedBox(
+                width: 22,
+                height: 22,
+                child: CircularProgressIndicator(
+                  strokeWidth: 2.5,
+                  color: cs.onSurfaceVariant,
+                ),
+              )
+            : Icon(
+                Icons.arrow_forward,
+                color: _canSubmit
+                    ? cs.onPrimaryContainer
+                    : cs.onSurfaceVariant,
+              ),
+      ),
+      body: SafeArea(
+        child: ListView(
+          padding: const EdgeInsets.fromLTRB(20, 8, 20, 96),
+          children: [
+            Text(
+              l10n.registrationTitle,
+              style: GoogleFonts.inter(
+                color: cs.onSurface,
+                fontSize: 26,
+                fontWeight: FontWeight.w600,
+              ),
+            ),
+            const SizedBox(height: 8),
+            Text(
+              l10n.registrationSubtitle,
+              style: TextStyle(
+                color: cs.onSurfaceVariant,
+                fontSize: 15,
+                fontWeight: FontWeight.w400,
+                height: 1.4,
+              ),
+            ),
+            const SizedBox(height: 28),
+            Center(
+              child: Container(
+                width: 96,
+                height: 96,
+                decoration: BoxDecoration(
+                  shape: BoxShape.circle,
+                  border: Border.all(
+                    color: cs.primary.withValues(alpha: 0.5),
+                    width: 2.5,
+                  ),
+                ),
+                child: ClipOval(
+                  child: _selectedAvatarUrl != null
+                      ? CachedNetworkImage(
+                          imageUrl: _selectedAvatarUrl!,
+                          fit: BoxFit.cover,
+                        )
+                      : Container(
+                          color: cs.primaryContainer,
+                          alignment: Alignment.center,
+                          child: Text(
+                            firstName.isNotEmpty
+                                ? firstName[0].toUpperCase()
+                                : '?',
+                            style: TextStyle(
+                              color: cs.onPrimaryContainer,
+                              fontSize: 36,
+                              fontWeight: FontWeight.bold,
+                            ),
+                          ),
+                        ),
+                ),
+              ),
+            ),
+            const SizedBox(height: 28),
+            _buildTextField(
+              cs,
+              label: l10n.editProfileFirstName,
+              controller: _firstNameController,
+              textInputAction: TextInputAction.next,
+            ),
+            const SizedBox(height: 14),
+            _buildTextField(
+              cs,
+              label: l10n.editProfileLastName,
+              controller: _lastNameController,
+              textInputAction: TextInputAction.done,
+            ),
+            if (widget.presetAvatars.isNotEmpty) ...[
+              const SizedBox(height: 28),
+              Text(
+                l10n.registrationChooseAvatar,
+                style: GoogleFonts.inter(
+                  color: cs.onSurface,
+                  fontSize: 16,
+                  fontWeight: FontWeight.w600,
+                ),
+              ),
+              const SizedBox(height: 4),
+              for (final category in widget.presetAvatars)
+                _buildAvatarCategory(cs, category),
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildTextField(
+    ColorScheme cs, {
+    required String label,
+    required TextEditingController controller,
+    required TextInputAction textInputAction,
+  }) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Padding(
+          padding: const EdgeInsets.only(left: 4, bottom: 6),
+          child: Text(
+            label,
+            style: TextStyle(color: cs.onSurfaceVariant, fontSize: 13),
+          ),
+        ),
+        TextField(
+          controller: controller,
+          enabled: !_isSubmitting,
+          textInputAction: textInputAction,
+          onChanged: (_) => setState(() {}),
+          style: TextStyle(color: cs.onSurface, fontSize: 15),
+          decoration: InputDecoration(
+            filled: true,
+            fillColor: cs.surfaceContainerHigh,
+            border: OutlineInputBorder(
+              borderRadius: BorderRadius.circular(12),
+              borderSide: BorderSide.none,
+            ),
+            contentPadding: const EdgeInsets.symmetric(
+              horizontal: 16,
+              vertical: 14,
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildAvatarCategory(ColorScheme cs, PresetAvatarCategory category) {
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        const SizedBox(height: 16),
+        if (category.name.isNotEmpty)
+          Padding(
+            padding: const EdgeInsets.only(left: 4, bottom: 10),
+            child: Text(
+              category.name,
+              style: TextStyle(
+                color: cs.onSurfaceVariant,
+                fontSize: 13,
+                fontWeight: FontWeight.w500,
+              ),
+            ),
+          ),
+        SizedBox(
+          height: 64,
+          child: ListView.separated(
+            scrollDirection: Axis.horizontal,
+            itemCount: category.avatars.length,
+            separatorBuilder: (_, __) => const SizedBox(width: 12),
+            itemBuilder: (context, index) {
+              final avatar = category.avatars[index];
+              final selected = _selectedPhotoId == avatar.id;
+              return GestureDetector(
+                onTap: _isSubmitting
+                    ? null
+                    : () => setState(() {
+                        _selectedPhotoId = avatar.id;
+                        _selectedAvatarUrl = avatar.url;
+                      }),
+                child: Container(
+                  width: 64,
+                  height: 64,
+                  decoration: BoxDecoration(
+                    shape: BoxShape.circle,
+                    border: Border.all(
+                      color: selected ? cs.primary : Colors.transparent,
+                      width: 2.5,
+                    ),
+                  ),
+                  child: Padding(
+                    padding: const EdgeInsets.all(2),
+                    child: ClipOval(
+                      child: CachedNetworkImage(
+                        imageUrl: avatar.url,
+                        fit: BoxFit.cover,
+                        placeholder: (_, __) => Container(
+                          color: cs.surfaceContainerHigh,
+                        ),
+                        errorWidget: (_, __, ___) => Container(
+                          color: cs.surfaceContainerHigh,
+                        ),
+                      ),
+                    ),
+                  ),
+                ),
+              );
+            },
+          ),
+        ),
+      ],
+    );
+  }
+}

lib/frontend/screens/calls/call_screen.dart

@@ -0,0 +1,381 @@
+import 'dart:async';
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/symbols.dart';
+
+enum CallScreenState { incoming, outgoing, active }
+
+class CallScreen extends StatefulWidget {
+  final String name;
+  final String? avatarUrl;
+  final CallScreenState initialState;
+
+  const CallScreen({
+    super.key,
+    required this.name,
+    this.avatarUrl,
+    this.initialState = CallScreenState.incoming,
+  });
+
+  @override
+  State<CallScreen> createState() => _CallScreenState();
+}
+
+class _CallScreenState extends State<CallScreen>
+    with SingleTickerProviderStateMixin {
+  late CallScreenState _state;
+  Timer? _timer;
+  int _seconds = 0;
+  bool _isMuted = false;
+  bool _isSpeaker = false;
+  late AnimationController _pulseController;
+  late Animation<double> _pulseAnimation;
+
+  @override
+  void initState() {
+    super.initState();
+    _state = widget.initialState;
+    _pulseController = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 1500),
+    )..repeat(reverse: true);
+    _pulseAnimation = Tween<double>(begin: 0.8, end: 1.0).animate(
+      CurvedAnimation(parent: _pulseController, curve: Curves.easeInOut),
+    );
+    if (_state == CallScreenState.outgoing) {
+      _startOutgoingTimer();
+    }
+  }
+
+  void _startOutgoingTimer() {
+    _timer = Timer.periodic(const Duration(seconds: 1), (_) {
+      if (!mounted) return;
+      setState(() => _seconds++);
+      if (_seconds >= 3 && _state == CallScreenState.outgoing) {
+        _timer?.cancel();
+        setState(() => _state = CallScreenState.active);
+        _startActiveTimer();
+      }
+    });
+  }
+
+  void _startActiveTimer() {
+    _seconds = 0;
+    _timer = Timer.periodic(const Duration(seconds: 1), (_) {
+      if (!mounted) return;
+      setState(() => _seconds++);
+    });
+  }
+
+  String get _timerText {
+    final m = (_seconds ~/ 60).toString().padLeft(2, '0');
+    final s = (_seconds % 60).toString().padLeft(2, '0');
+    return '$m:$s';
+  }
+
+  void _accept() {
+    setState(() {
+      _state = CallScreenState.active;
+      _seconds = 0;
+    });
+    _startActiveTimer();
+  }
+
+  void _endCall() {
+    _timer?.cancel();
+    Navigator.pop(context);
+  }
+
+  @override
+  void dispose() {
+    _timer?.cancel();
+    _pulseController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final screenH = MediaQuery.of(context).size.height;
+
+    return Scaffold(
+      backgroundColor: const Color(0xFF0E0E14),
+      body: SafeArea(
+        child: Column(
+          children: [
+            const Spacer(flex: 3),
+            _buildAvatar(screenH),
+            const SizedBox(height: 24),
+            _buildName(),
+            const SizedBox(height: 8),
+            _buildStatus(),
+            const Spacer(flex: 2),
+            _buildActions(),
+            const SizedBox(height: 48),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildAvatar(double screenH) {
+    final size = screenH * 0.18;
+    final cs = Theme.of(context).colorScheme;
+    final isRinging = _state == CallScreenState.incoming;
+    final isOutgoing = _state == CallScreenState.outgoing;
+
+    return AnimatedBuilder(
+      animation: _pulseAnimation,
+      builder: (context, child) {
+        final scale = (isRinging || isOutgoing)
+            ? _pulseAnimation.value
+            : 1.0;
+        return Transform.scale(
+          scale: scale,
+          child: child,
+        );
+      },
+      child: Container(
+        width: size,
+        height: size,
+        decoration: BoxDecoration(
+          shape: BoxShape.circle,
+          color: cs.primaryContainer.withValues(alpha: 0.2),
+          border: Border.all(
+            color: cs.primary.withValues(alpha: 0.3),
+            width: 2,
+          ),
+        ),
+        child: ClipOval(
+          child: widget.avatarUrl != null && widget.avatarUrl!.isNotEmpty
+              ? CachedNetworkImage(
+                  imageUrl: widget.avatarUrl!,
+                  fit: BoxFit.cover,
+                  memCacheWidth: 360,
+                  memCacheHeight: 360,
+                  errorWidget: (_, _, _) => _fallbackAvatar(size),
+                )
+              : _fallbackAvatar(size),
+        ),
+      ),
+    );
+  }
+
+  Widget _fallbackAvatar(double size) {
+    final cs = Theme.of(context).colorScheme;
+    return Container(
+      width: size,
+      height: size,
+      decoration: BoxDecoration(
+        shape: BoxShape.circle,
+        color: cs.primaryContainer,
+      ),
+      alignment: Alignment.center,
+      child: Text(
+        widget.name.isNotEmpty ? widget.name[0].toUpperCase() : '?',
+        style: TextStyle(
+          color: cs.onPrimaryContainer,
+          fontSize: size * 0.4,
+          fontWeight: FontWeight.w600,
+        ),
+      ),
+    );
+  }
+
+  Widget _buildName() {
+    final cs = Theme.of(context).colorScheme;
+    return Text(
+      widget.name,
+      style: TextStyle(
+        color: cs.onSurface,
+        fontSize: 26,
+        fontWeight: FontWeight.w600,
+        fontFamily: 'Outfit',
+      ),
+    );
+  }
+
+  Widget _buildStatus() {
+    final cs = Theme.of(context).colorScheme;
+    String text;
+    switch (_state) {
+      case CallScreenState.incoming:
+        text = 'Входящий звонок';
+      case CallScreenState.outgoing:
+        text = 'Вызов...';
+      case CallScreenState.active:
+        text = _timerText;
+    }
+    return Text(
+      text,
+      style: TextStyle(
+        color: cs.onSurfaceVariant,
+        fontSize: 16,
+        fontWeight: FontWeight.w400,
+      ),
+    );
+  }
+
+  Widget _buildActions() {
+    switch (_state) {
+      case CallScreenState.incoming:
+        return _buildIncomingActions();
+      case CallScreenState.outgoing:
+        return _buildOutgoingActions();
+      case CallScreenState.active:
+        return _buildActiveActions();
+    }
+  }
+
+  Widget _buildIncomingActions() {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        _ActionButton(
+          icon: Symbols.phone_disabled,
+          label: 'Отклонить',
+          color: const Color(0xFFBA1A1A),
+          onTap: _endCall,
+        ),
+        const SizedBox(width: 48),
+        _ActionButton(
+          icon: Symbols.phone,
+          label: 'Принять',
+          color: const Color(0xFF3A691E),
+          onTap: _accept,
+        ),
+      ],
+    );
+  }
+
+  Widget _buildOutgoingActions() {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        _ActionButton(
+          icon: Symbols.phone_disabled,
+          label: 'Отмена',
+          color: const Color(0xFFBA1A1A),
+          onTap: _endCall,
+        ),
+      ],
+    );
+  }
+
+  Widget _buildActiveActions() {
+    return Column(
+      children: [
+        Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            _CircleActionButton(
+              icon: _isMuted ? Symbols.mic_off : Symbols.mic,
+              active: _isMuted,
+              onTap: () => setState(() => _isMuted = !_isMuted),
+            ),
+            const SizedBox(width: 32),
+            _CircleActionButton(
+              icon: _isMuted ? Symbols.volume_off : Symbols.volume_up,
+              active: _isSpeaker,
+              onTap: () => setState(() => _isSpeaker = !_isSpeaker),
+            ),
+            const SizedBox(width: 32),
+            _CircleActionButton(
+              icon: Symbols.bluetooth_audio,
+              active: false,
+              onTap: () {},
+            ),
+          ],
+        ),
+        const SizedBox(height: 40),
+        _ActionButton(
+          icon: Symbols.phone_disabled,
+          label: 'Завершить',
+          color: const Color(0xFFBA1A1A),
+          onTap: _endCall,
+        ),
+      ],
+    );
+  }
+}
+
+class _ActionButton extends StatelessWidget {
+  final IconData icon;
+  final String label;
+  final Color color;
+  final VoidCallback onTap;
+
+  const _ActionButton({
+    required this.icon,
+    required this.label,
+    required this.color,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: onTap,
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Container(
+            width: 64,
+            height: 64,
+            decoration: BoxDecoration(
+              shape: BoxShape.circle,
+              color: color,
+            ),
+            alignment: Alignment.center,
+            child: Icon(icon, color: Colors.white, size: 28, fill: 1),
+          ),
+          const SizedBox(height: 8),
+          Text(
+            label,
+            style: const TextStyle(
+              color: Colors.white70,
+              fontSize: 13,
+              fontWeight: FontWeight.w500,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _CircleActionButton extends StatelessWidget {
+  final IconData icon;
+  final bool active;
+  final VoidCallback onTap;
+
+  const _CircleActionButton({
+    required this.icon,
+    required this.active,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: onTap,
+      child: Container(
+        width: 56,
+        height: 56,
+        decoration: BoxDecoration(
+          shape: BoxShape.circle,
+          color: active
+              ? Colors.white.withValues(alpha: 0.2)
+              : Colors.white.withValues(alpha: 0.1),
+        ),
+        alignment: Alignment.center,
+        child: Icon(
+          icon,
+          color: active ? Colors.white : Colors.white70,
+          size: 24,
+          fill: 1,
+        ),
+      ),
+    );
+  }
+}

lib/frontend/screens/chats/chat_info_screen.dart

@@ -3,9 +3,8 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import '../../../backend/modules/messages.dart' show ContactCache;
-import '../../../core/protocol/opcode_map.dart';
+import '../../../core/cache/info_cache.dart';
 import '../../../core/storage/app_database.dart';
-import '../../../main.dart' as main;
 
 class _MemberInfo {
   final int id;
@@ -96,21 +95,13 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
     final profile = await AppDatabase.loadActiveProfile();
     _myId = profile?.id ?? 0;
 
-    final packet = await main.api.sendRequest(
-      Opcode.chatInfo,
-      {'chatIds': [widget.chatId]},
-    );
-    if (!packet.isOk || !mounted) {
-      if (mounted) setState(() => _isLoading = false);
+    final info = await ChatInfoFetch.get(widget.chatId);
+    if (!mounted) return;
+    if (info == null) {
+      setState(() => _isLoading = false);
       return;
     }
-
-    final chats = (packet.payload as Map?)?['chats'] as List?;
-    if (chats == null || chats.isEmpty) {
-      if (mounted) setState(() => _isLoading = false);
-      return;
-    }
-    _chatData = Map<String, dynamic>.from(chats.first as Map);
+    _chatData = info;
 
     if (widget.chatType == 'DIALOG') {
       final parts = _chatData!['participants'] as Map? ?? {};
@@ -123,32 +114,19 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
       }
 
       if (_otherId != null) {
-        final cp = await main.api.sendRequest(
-          Opcode.contactInfo,
-          {'contactIds': [_otherId]},
-        );
-        if (cp.isOk) {
-          final contacts = (cp.payload as Map?)?['contacts'] as List?;
-          if (contacts != null && contacts.isNotEmpty) {
-            _contactData = Map<String, dynamic>.from(contacts.first as Map);
-            final opts = _contactData!['options'];
-            _isBot = (opts is List) && opts.contains('BOT');
-          }
+        final contact = await ContactInfoFetch.get(_otherId!);
+        if (contact != null) {
+          _contactData = contact;
+          final opts = _contactData!['options'];
+          _isBot = (opts is List) && opts.contains('BOT');
         }
 
-        final pp = await main.api.sendRequest(
-          Opcode.contactPresence,
-          {'contactIds': [_otherId]},
-        );
-        if (pp.isOk) {
-          final presence = (pp.payload as Map?)?['presence'] as Map?;
-          final p = presence?[_otherId.toString()] ?? presence?[_otherId];
-          if (p is Map) {
-            _seenTime = p['seen'] as int?;
-            final st = (p['status'] as int?) ?? 0;
-            _presenceStatus = st;
-            _isOnline = st == 1;
-          }
+        final presence = await PresenceFetch.get(_otherId!);
+        if (presence != null) {
+          _seenTime = presence['seen'] as int?;
+          final st = (presence['status'] as int?) ?? 0;
+          _presenceStatus = st;
+          _isOnline = st == 1;
         }
       }
     } else if (widget.chatType == 'CHAT') {
@@ -162,25 +140,9 @@ class _ChatInfoScreenState extends State<ChatInfoScreen> {
         if (id != null) memberIds.add(id);
       }
 
-      final Map<int, Map> presenceMap = {};
+      Map<int, Map<String, dynamic>> presenceMap = {};
       if (memberIds.isNotEmpty) {
-        final pp = await main.api.sendRequest(
-          Opcode.contactPresence,
-          {'contactIds': memberIds},
-        );
-        if (pp.isOk) {
-          final presence = (pp.payload as Map?)?['presence'] as Map?;
-          if (presence != null) {
-            for (final e in presence.entries) {
-              final id = e.key is int
-                  ? e.key as int
-                  : int.tryParse(e.key.toString());
-              if (id != null && e.value is Map) {
-                presenceMap[id] = e.value as Map;
-              }
-            }
-          }
-        }
+        presenceMap = await PresenceFetch.getMany(memberIds);
       }
 
       _onlineCount = 0;

lib/frontend/screens/chats/chat_list_screen.dart

@@ -19,13 +19,16 @@ import '../auth/login_screen.dart';
 import '../../widgets/account_switcher_overlay.dart';
 import '../../../backend/api.dart';
 import '../../../core/utils/haptics.dart';
+import '../../../core/config/app_stories.dart';
 import '../../../backend/models/chat_folder.dart';
 import '../../../backend/modules/account.dart';
 import '../../../backend/modules/chats.dart';
 import '../../../backend/modules/cloud_storage.dart';
 import '../../../backend/modules/folders.dart';
 import '../../../core/storage/app_database.dart';
-import '../../../main.dart' show accountModule, api, messagesModule;
+import '../../../core/storage/token_storage.dart';
+import '../../../main.dart'
+    show accountModule, api, messagesModule, appRouteObserver;
 
 class _StoriesScrollPhysics extends BouncingScrollPhysics {
   final bool Function() blockPositive;
@@ -72,7 +75,7 @@ class ChatListScreen extends StatefulWidget {
 enum _DeleteKind { personalLike, ownerGroup, blocked }
 
 class _ChatListScreenState extends State<ChatListScreen>
-    with TickerProviderStateMixin {
+    with TickerProviderStateMixin, RouteAware {
   String? _selectedFolderId;
 
   List<ChatFolder> _folders = [];
@@ -81,7 +84,7 @@ class _ChatListScreenState extends State<ChatListScreen>
 
   double _navPageAnimStart = 0;
   double _navPageAnimEnd = 0;
-  double _navDragDx = 0;
+  final ValueNotifier<double> _navDragDx = ValueNotifier(0);
   double _navDragBaseLeft = 0;
   double _revealAnimBegin = 0.0;
   double _closeAnimBegin = 0.0;
@@ -100,9 +103,11 @@ class _ChatListScreenState extends State<ChatListScreen>
 
   bool _navDragging = false;
   bool _isFabOpen = false;
-  bool _showCacheWarning = false;
   bool _storiesAnimClosing = false;
   Timer? _contactRebuildTimer;
+  bool _deferReloads = false;
+  bool _reloadQueued = false;
+  Timer? _settleTimer;
   bool get _isSelectionMode => _selectedChats.isNotEmpty;
   bool? _foldersListKnown;
 
@@ -140,11 +145,9 @@ class _ChatListScreenState extends State<ChatListScreen>
       _selectedFolderId,
       _isInitialLoading,
       _foldersListKnown,
-      _showCacheWarning,
       _isSelectionMode,
       _shouldCollapseSearch,
       _selectedChats.length,
-      _pullRatio,
       _storiesDockedOpen,
       _storiesAnimClosing,
       _storiesOverscrollRevealArmed,
@@ -180,8 +183,12 @@ class _ChatListScreenState extends State<ChatListScreen>
 
   List<CachedChat> _selectedChatObjects() {
     if (_selectedChats.isEmpty) return const [];
-    final ids = _selectedChats;
-    return _chats.where((c) => ids.contains(c.id.toString())).toList();
+    final ids = <int>{};
+    for (final s in _selectedChats) {
+      final v = int.tryParse(s);
+      if (v != null) ids.add(v);
+    }
+    return _chats.where((c) => ids.contains(c.id)).toList();
   }
 
   _DeleteKind _categorizeChat(CachedChat c, int myId) {
@@ -404,6 +411,7 @@ class _ChatListScreenState extends State<ChatListScreen>
   }
 
   bool _allowStoriesPullOverscrollTop() {
+    if (!AppStories.current.value) return false;
     if (_storiesDockedOpen ||
         _storiesRevealController.isAnimating ||
         _pullRatio > 0) {
@@ -447,30 +455,73 @@ class _ChatListScreenState extends State<ChatListScreen>
       if (mounted) {
         setState(() {
           _sessionState = state;
-          if (state == SessionState.disconnected && _chats.isNotEmpty) {
-            _showCacheWarning = true;
-          }
-          if (state == SessionState.online) {
-            _showCacheWarning = false;
-          }
         });
         if (state == SessionState.online) {
-          _reloadChatsAndFolders();
+          _requestReload();
         }
       }
     });
 
     _loginSub = accountModule.loginStatusStream.listen((status) {
       if (status == LoginStatus.success) {
-        _reloadChatsAndFolders();
+        _requestReload();
       }
     });
     ChatsModule.chatsChanged.addListener(_onChatsChanged);
+    AppStories.current.addListener(_onStoriesEnabledChanged);
+    _reloadChatsAndFolders();
+  }
+
+  void _onStoriesEnabledChanged() {
+    if (!mounted) return;
+    if (!AppStories.current.value) {
+      _storiesRevealController.stop();
+      _pullRatio = 0;
+      _storiesDockedOpen = false;
+      _storiesAnimClosing = false;
+      _storiesOverscrollRevealArmed = false;
+    }
+    setState(() {});
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    final route = ModalRoute.of(context);
+    if (route is PageRoute) {
+      appRouteObserver.subscribe(this, route);
+    }
+  }
+
+  @override
+  void didPushNext() {
+    _deferReloads = true;
+  }
+
+  @override
+  void didPopNext() {
+    _settleTimer?.cancel();
+    _settleTimer = Timer(const Duration(milliseconds: 420), () {
+      if (!mounted) return;
+      _deferReloads = false;
+      if (_reloadQueued) {
+        _reloadQueued = false;
+        _reloadChatsAndFolders();
+      }
+    });
+  }
+
+  void _requestReload() {
+    if (!mounted) return;
+    if (_deferReloads) {
+      _reloadQueued = true;
+      return;
+    }
     _reloadChatsAndFolders();
   }
 
   void _onChatsChanged() {
-    if (mounted) _reloadChatsAndFolders();
+    _requestReload();
   }
 
   Future<void> _reloadChatsAndFolders() async {
@@ -619,7 +670,19 @@ class _ChatListScreenState extends State<ChatListScreen>
     });
   }
 
+  int? _pageChatsBaseKey;
+  final Map<int, List<CachedChat>> _pageChatsCache = {};
+
   List<CachedChat> _chatsForPageIndex(int pageIndex) {
+    final baseKey =
+        Object.hash(identityHashCode(_chats), identityHashCode(_folders));
+    if (_pageChatsBaseKey != baseKey) {
+      _pageChatsBaseKey = baseKey;
+      _pageChatsCache.clear();
+    }
+    final cached = _pageChatsCache[pageIndex];
+    if (cached != null) return cached;
+
     List<CachedChat> base;
     if (_folders.isEmpty) {
       base = _chats;
@@ -634,7 +697,9 @@ class _ChatListScreenState extends State<ChatListScreen>
     final pinned = base.where((c) => (c.favIndex ?? 0) > 0).toList()
       ..sort((a, b) => a.favIndex!.compareTo(b.favIndex!));
     final regular = base.where((c) => (c.favIndex ?? 0) <= 0).toList();
-    return [...pinned, ...regular];
+    final result = [...pinned, ...regular];
+    _pageChatsCache[pageIndex] = result;
+    return result;
   }
 
   void _syncFolderChatScrollControllers() {
@@ -928,7 +993,10 @@ class _ChatListScreenState extends State<ChatListScreen>
 
   @override
   void dispose() {
+    appRouteObserver.unsubscribe(this);
+    _settleTimer?.cancel();
     ChatsModule.chatsChanged.removeListener(_onChatsChanged);
+    AppStories.current.removeListener(_onStoriesEnabledChanged);
     _loginSub?.cancel();
     _stateSub?.cancel();
     _fabController.dispose();
@@ -947,6 +1015,7 @@ class _ChatListScreenState extends State<ChatListScreen>
     }
     _contactRebuildTimer?.cancel();
     _storiesUi.dispose();
+    _navDragDx.dispose();
     super.dispose();
   }
 
@@ -955,7 +1024,7 @@ class _ChatListScreenState extends State<ChatListScreen>
     required double Function(int index) bubbleLeftForIndex,
   }) {
     if (_navDragging) {
-      final left = (_navDragBaseLeft + _navDragDx).clamp(
+      final left = (_navDragBaseLeft + _navDragDx.value).clamp(
         bubbleLeftForIndex(0),
         bubbleLeftForIndex(3),
       );
@@ -1028,7 +1097,8 @@ class _ChatListScreenState extends State<ChatListScreen>
                             children: [
                               Row(
                                 children: [
-                                  if (_pullRatio < 0.8)
+                                  if (AppStories.current.value &&
+                                      _pullRatio < 0.8)
                                     Opacity(
                                       opacity: 1.0 - _pullRatio,
                                       child: Container(
@@ -1107,68 +1177,33 @@ class _ChatListScreenState extends State<ChatListScreen>
                             ],
                           ),
                         ),
-                        SizedBox(
-                          height: 96 * _pullRatio,
-                          child: Opacity(
-                            opacity: _pullRatio,
-                            child: ListView(
-                              scrollDirection: Axis.horizontal,
-                              padding: const EdgeInsets.symmetric(
-                                horizontal: 20,
-                              ),
-                              children: [
-                                _buildStoryItem(
-                                  'Даша',
-                                  'https://i.pravatar.cc/150?u=dasha',
-                                  true,
+                        if (AppStories.current.value)
+                          SizedBox(
+                            height: 96 * _pullRatio,
+                            child: Opacity(
+                              opacity: _pullRatio,
+                              child: ListView(
+                                scrollDirection: Axis.horizontal,
+                                padding: const EdgeInsets.symmetric(
+                                  horizontal: 20,
                                 ),
-                                _buildStoryItem(
-                                  'Мастика',
-                                  'https://i.pravatar.cc/150?u=mastika',
-                                  false,
-                                ),
-                              ],
-                            ),
-                          ),
-                        ),
-                        if (_showCacheWarning)
-                          Padding(
-                            padding: const EdgeInsets.fromLTRB(20, 0, 20, 8),
-                            child: Container(
-                              padding: const EdgeInsets.symmetric(
-                                horizontal: 16,
-                                vertical: 8,
-                              ),
-                              decoration: BoxDecoration(
-                                color: cs.errorContainer.withValues(alpha: 0.3),
-                                borderRadius: BorderRadius.circular(12),
-                                border: Border.all(
-                                  color: cs.error.withValues(alpha: 0.2),
-                                ),
-                              ),
-                              child: Row(
                                 children: [
-                                  Icon(
-                                    Symbols.cloud_off,
-                                    size: 18,
-                                    color: cs.error,
+                                  _buildStoryItem(
+                                    'Даша',
+                                    'https://i.pravatar.cc/150?u=dasha',
+                                    true,
                                   ),
-                                  const SizedBox(width: 12),
-                                  const Expanded(
-                                    child: Text(
-                                      'Ошибка соединения, сейчас вы смотрите КЕШ',
-                                      style: TextStyle(
-                                        fontSize: 12,
-                                        fontWeight: FontWeight.w500,
-                                      ),
-                                    ),
+                                  _buildStoryItem(
+                                    'Мастика',
+                                    'https://i.pravatar.cc/150?u=mastika',
+                                    false,
                                   ),
                                 ],
                               ),
                             ),
                           ),
                         Padding(
-                          padding: const EdgeInsets.fromLTRB(20, 3, 20, 4),
+                          padding: const EdgeInsets.fromLTRB(20, 3, 20, 8),
                           child: Container(
                             height: 44,
                             decoration: BoxDecoration(
@@ -1321,7 +1356,7 @@ class _ChatListScreenState extends State<ChatListScreen>
           parent: const AlwaysScrollableScrollPhysics(),
         ),
         slivers: [
-          const SliverToBoxAdapter(child: SizedBox(height: 14)),
+          const SliverToBoxAdapter(child: SizedBox(height: 8)),
           if (chats.isEmpty && !_isInitialLoading)
             SliverFillRemaining(
               child: Center(
@@ -1343,6 +1378,7 @@ class _ChatListScreenState extends State<ChatListScreen>
 
                 if (hasSeparator && index == pinnedCount) {
                   return Padding(
+                    key: const ValueKey('pinned_divider'),
                     padding: const EdgeInsets.symmetric(horizontal: 20),
                     child: Divider(
                       height: 1,
@@ -1357,20 +1393,28 @@ class _ChatListScreenState extends State<ChatListScreen>
                 final isPinned = (chat.favIndex ?? 0) > 0;
 
                 if (chat.type.isNotEmpty && chat.type == "DIALOG" && chat.id != 0) {
-                  final secondId = chat.participants.entries
-                      .where((entry) => entry.key != _profile?.id)
-                      .first
-                      .key;
+                  int secondId = _profile?.id ?? 0;
+                  for (final entry in chat.participants.entries) {
+                    if (entry.key != _profile?.id) {
+                      secondId = entry.key;
+                      break;
+                    }
+                  }
                   final name = ContactCache.get(secondId);
                   final avatar = ContactCache.getAvatar(secondId);
                   // ContactCache.isOfficial covers contacts loaded via opcode 32;
                   // chat.isOfficial covers contacts from the login payload.
                   final isVerified = ContactCache.isOfficial(secondId) || chat.isOfficial;
 
+                  final isPlaceholder =
+                      chat.lastMsgText == ChatsModule.lastMsgPlaceholder;
+                  final previewText = isPlaceholder
+                      ? 'зайдите в чат для подгрузки'
+                      : (chat.lastMsgTextOneLine ?? '');
                   return _buildChatItem(
                     chat.id.toString(),
                     name ?? "Пользователь",
-                    chat.lastMsgTextOneLine ?? '',
+                    previewText,
                     _formatTime(chat.lastMsgTime),
                     avatar ?? "",
                     isOnline: chat.isOnline,
@@ -1379,20 +1423,25 @@ class _ChatListScreenState extends State<ChatListScreen>
                     isVerified: isVerified,
                     isPinned: isPinned,
                     chatType: "DIALOG",
+                    messageItalic: isPlaceholder,
                   );
                 } else {
-                  final name = chat.lastMsgSenderId != null
+                  final isPlaceholder =
+                      chat.lastMsgText == ChatsModule.lastMsgPlaceholder;
+                  final sender = chat.lastMsgSenderId != null
                       ? ContactCache.get(chat.lastMsgSenderId!)
                       : null;
 
                   String fullMsg = "";
-
-                  if (name?.isNotEmpty == true && chat.id != 0) {
-                    fullMsg += "$name: ";
-                  }
-
-                  if (chat.lastMsgText?.isNotEmpty == true) {
-                    fullMsg += chat.lastMsgText ?? "";
+                  if (isPlaceholder) {
+                    fullMsg = 'зайдите в чат для подгрузки';
+                  } else {
+                    if (sender?.isNotEmpty == true && chat.id != 0) {
+                      fullMsg += "$sender: ";
+                    }
+                    if (chat.lastMsgText?.isNotEmpty == true) {
+                      fullMsg += chat.lastMsgText ?? "";
+                    }
                   }
 
                   return _buildChatItem(
@@ -1409,6 +1458,7 @@ class _ChatListScreenState extends State<ChatListScreen>
                     isVerified: chat.isOfficial,
                     isPinned: isPinned,
                     chatType: chat.type,
+                    messageItalic: isPlaceholder,
                   );
                 }
               }, childCount: totalItems),
@@ -1499,12 +1549,6 @@ class _ChatListScreenState extends State<ChatListScreen>
     final minBubbleLeft = bubbleLeftForIndex(0);
     final maxBubbleLeft = bubbleLeftForIndex(3);
 
-    final bubbleLeft = _navDragging
-        ? (_navDragBaseLeft + _navDragDx).clamp(minBubbleLeft, maxBubbleLeft)
-        : leftOffset;
-
-    final navRowT = ((bubbleLeft - 4) / inactiveWidth).clamp(0.0, 3.0);
-
     double navInterpolatedWidth(int tabIndex, double rowT) {
       final rt = rowT.clamp(0.0, 3.0);
       final i0 = rt.floor().clamp(0, 3);
@@ -1557,39 +1601,46 @@ class _ChatListScreenState extends State<ChatListScreen>
               if (_isSelectionMode) return;
               _navPageAnimController.stop();
               _navPageAnimController.value = 1.0;
+              _navDragDx.value = 0;
               setState(() {
                 _navDragging = true;
-                _navDragDx = 0;
                 _navDragBaseLeft = bubbleLeftForIndex(_currentNavIndex);
               });
             },
             onHorizontalDragUpdate: (details) {
               if (!_navDragging) return;
-              setState(() {
-                _navDragDx += details.delta.dx;
-              });
+              _navDragDx.value += details.delta.dx;
             },
             onHorizontalDragEnd: (_) {
               if (!_navDragging) return;
-              final left = (_navDragBaseLeft + _navDragDx).clamp(
+              final left = (_navDragBaseLeft + _navDragDx.value).clamp(
                 minBubbleLeft,
                 maxBubbleLeft,
               );
               final next = indexForBubbleLeft(left);
+              _navDragDx.value = 0;
               setState(() {
                 _currentNavIndex = next;
                 _navDragging = false;
-                _navDragDx = 0;
               });
             },
             onHorizontalDragCancel: () {
               if (!_navDragging) return;
+              _navDragDx.value = 0;
               setState(() {
                 _navDragging = false;
-                _navDragDx = 0;
               });
             },
-            child: Stack(
+            child: ValueListenableBuilder<double>(
+              valueListenable: _navDragDx,
+              builder: (context, navDragDx, _) {
+                final bubbleLeft = _navDragging
+                    ? (_navDragBaseLeft + navDragDx)
+                        .clamp(minBubbleLeft, maxBubbleLeft)
+                    : leftOffset;
+                final navRowT =
+                    ((bubbleLeft - 4) / inactiveWidth).clamp(0.0, 3.0);
+                return Stack(
               clipBehavior: Clip.hardEdge,
               children: [
                 AnimatedPositioned(
@@ -1661,6 +1712,8 @@ class _ChatListScreenState extends State<ChatListScreen>
                   ),
                 ),
               ],
+                );
+              },
             ),
           ),
         ),
@@ -1706,7 +1759,8 @@ class _ChatListScreenState extends State<ChatListScreen>
                         width: pageW * 4,
                         height: pageH,
                         child: AnimatedBuilder(
-                          animation: _navPageAnimController,
+                          animation: Listenable.merge(
+                              [_navPageAnimController, _navDragDx]),
                           child: Row(
                             crossAxisAlignment: CrossAxisAlignment.stretch,
                             children: [
@@ -1812,9 +1866,7 @@ class _ChatListScreenState extends State<ChatListScreen>
                               onPressed: _toggleFab,
                               backgroundColor: cs.primaryContainer,
                               elevation: 4,
-                              shape: RoundedRectangleBorder(
-                                borderRadius: BorderRadius.circular(20),
-                              ),
+                              shape: const CircleBorder(),
                               child: Transform.rotate(
                                 angle: val * (pi / 4),
                                 child: Icon(
@@ -2020,7 +2072,7 @@ class _ChatListScreenState extends State<ChatListScreen>
         padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
         decoration: BoxDecoration(
           color: isSelected ? cs.primaryContainer : cs.surfaceContainerHigh,
-          borderRadius: BorderRadius.circular(8),
+          borderRadius: BorderRadius.circular(50),
         ),
         child: Text(
           title,
@@ -2049,11 +2101,13 @@ class _ChatListScreenState extends State<ChatListScreen>
     bool isVerified = false,
     bool isPinned = false,
     String chatType = "CHAT",
+    bool messageItalic = false,
   }) {
     final cs = Theme.of(context).colorScheme;
     final isSelected = _selectedChats.contains(id);
 
     return InkWell(
+      key: ValueKey('chat_$id'),
       onTap: () {
         if (_isSelectionMode) {
           _toggleSelection(id);
@@ -2230,6 +2284,9 @@ class _ChatListScreenState extends State<ChatListScreen>
                                   fontWeight: isTyping
                                       ? FontWeight.w500
                                       : FontWeight.w400,
+                                  fontStyle: messageItalic
+                                      ? FontStyle.italic
+                                      : FontStyle.normal,
                                   height: 1.2,
                                 ),
                                 maxLines: 1,
@@ -2313,6 +2370,7 @@ class _ChatListScreenState extends State<ChatListScreen>
                 icon,
                 color: isSelected ? cs.onPrimary : cs.onSurface,
                 size: 20,
+                fill: 1,
               ),
               AnimatedContainer(
                 duration: animDur,
@@ -2355,9 +2413,16 @@ class _ChatListScreenState extends State<ChatListScreen>
         controller.dispose();
         if (!mounted) return;
         if (accountId == null) {
-          await Navigator.push(
-            context,
-            MaterialPageRoute(builder: (_) => const LoginScreen()),
+          final previousId = await TokenStorage.getActiveAccountId();
+          try {
+            await accountModule.beginAddAccount();
+          } catch (_) {}
+          if (!mounted) return;
+          await Navigator.of(context).pushAndRemoveUntil(
+            MaterialPageRoute(
+              builder: (_) => LoginScreen(returnToAccountId: previousId),
+            ),
+            (route) => false,
           );
           return;
         }

lib/frontend/screens/chats/chat_screen.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'dart:io' show File;
+import 'dart:math' as math;
 import 'dart:ui' as ui;
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:file_picker/file_picker.dart';
@@ -13,17 +14,19 @@ import 'package:komet/frontend/screens/chats/chat_info_screen.dart';
 import 'package:komet/frontend/widgets/custom_notification.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import '../../../main.dart';
-import '../../../backend/api.dart';
 import '../../../backend/modules/messages.dart';
 import '../../../core/protocol/opcode_map.dart';
 import '../../../core/protocol/packet.dart';
 import '../../../core/storage/app_database.dart';
+import '../../../core/cache/info_cache.dart';
 import '../../../core/utils/haptics.dart';
 import '../../../core/config/app_cache_extent.dart';
 import '../../../core/config/app_message_actions_style.dart';
 import '../../../core/config/app_swipe_back_desktop.dart';
+import '../../../core/config/app_pranks.dart';
 import '../../../models/attachment.dart';
 import '../../widgets/message_bubble.dart';
+import '../../widgets/theme_reveal.dart';
 import '../../widgets/message_actions_overlay.dart';
 import '../../widgets/attachment_panel.dart';
 import '../../widgets/swipe_to_pop.dart';
@@ -89,11 +92,42 @@ class _ChatScreenState extends State<ChatScreen>
   final ValueNotifier<_UploadStatus> _uploadStatus = ValueNotifier(const _UploadStatus());
   StreamSubscription<UploadEvent>? _uploadSub;
   StreamSubscription<Packet>? _pushSub;
+  StreamSubscription<MessageEvent>? _messageEventSub;
+  final Map<String, ValueNotifier<Map<String, dynamic>?>> _reactionNotifiers = {};
+
+  ValueNotifier<Map<String, dynamic>?> _reactionNotifierFor(CachedMessage m) {
+    final existing = _reactionNotifiers[m.id];
+    if (existing != null) return existing;
+    final info = m.payload?['reactionInfo'];
+    final notifier = ValueNotifier<Map<String, dynamic>?>(
+      info is Map ? Map<String, dynamic>.from(info) : null,
+    );
+    _reactionNotifiers[m.id] = notifier;
+    return notifier;
+  }
+
+  void _pruneReactionNotifiers() {
+    final liveIds = _messages.map((m) => m.id).toSet();
+    final dead = _reactionNotifiers.keys.where((id) => !liveIds.contains(id)).toList();
+    for (final id in dead) {
+      _reactionNotifiers.remove(id)?.dispose();
+    }
+  }
   final Set<int> _typingUserIds = {};
   final Map<int, Timer> _typingTimers = {};
   int _otherStatus = 0;
   int? _otherSeenTime;
+  int? _participantsCount;
+
+  bool _prankActive = false;
+  String? _prankBubbleId;
+  final GlobalKey _prankBubbleKey = GlobalKey();
+  final GlobalKey _prankCaptureKey = GlobalKey();
+  OverlayEntry? _prankRevealEntry;
+  AnimationController? _prankRevealController;
+  ui.Image? _prankRevealImage;
   final ValueNotifier<String> _headerStatusNotifier = ValueNotifier('');
+  final ValueNotifier<int> _otherReadTime = ValueNotifier(0);
   int _tempIdCounter = 0;
   late final AnimationController _attachAnim;
 
@@ -102,6 +136,10 @@ class _ChatScreenState extends State<ChatScreen>
   Timer? _shimmerStartTimer;
   bool _historyKickedOff = false;
   List<CachedMessage> _messages = [];
+  int _messagesRevision = 0;
+  List<Object>? _combinedItemsCache;
+  int? _combinedItemsKey;
+  bool _floatingDateScheduled = false;
   int _myId = 0;
   CachedChat? chat;
 
@@ -110,7 +148,6 @@ class _ChatScreenState extends State<ChatScreen>
   late final AnimationController _floatingDateAnimController;
   late final CurvedAnimation _floatingDateCurved;
   final Map<int, GlobalKey> _separatorKeys = {};
-  double _lastScrollOffset = 0;
   String? _lastSentId;
   
   @override
@@ -130,10 +167,12 @@ class _ChatScreenState extends State<ChatScreen>
     _showAttachmentPanel.addListener(_onAttachPanelToggle);
     _pushSub = api.pushStream
         .where((p) =>
-            p.opcode == Opcode.notifMessage ||
             p.opcode == Opcode.notifMark ||
             p.opcode == Opcode.notifTyping)
         .listen(_onIncomingPush);
+    _messageEventSub = ChatsModule.messageEvents
+        .where((e) => e.chatId == widget.chatId)
+        .listen(_onMessageEvent);
     _floatingDateAnimController = AnimationController(
       vsync: this,
       duration: const Duration(milliseconds: 220),
@@ -145,9 +184,56 @@ class _ChatScreenState extends State<ChatScreen>
       reverseCurve: Curves.easeIn,
     );
 
+    unawaited(_fastPreloadCache());
+    unawaited(_loadParticipantsCount());
     WidgetsBinding.instance.addPostFrameCallback(_onFirstFrameRendered);
   }
 
+  Future<void> _loadParticipantsCount() async {
+    if (widget.chatType != 'CHAT' && widget.chatType != 'CHANNEL') return;
+    final info = await ChatsModule.getChatInfo(api, widget.chatId);
+    if (!mounted) return;
+    final count = info?['participantsCount'] as int?;
+    if (count != null && count != _participantsCount) {
+      _participantsCount = count;
+      _recomputeHeaderStatus();
+    }
+  }
+
+  Future<void> _fastPreloadCache() async {
+    final p = await AppDatabase.loadActiveProfile();
+    if (!mounted) return;
+    _myId = p?.id ?? 0;
+
+    ChatsModule.getChat(_myId, widget.chatId).then((value) {
+      if (mounted && value.isNotEmpty) {
+        setState(() {
+          chat = value.first;
+        });
+        _recomputeHeaderStatus();
+        _syncOtherReadTime();
+      }
+    }).catchError((_) {});
+
+    final firstRows = await AppDatabase.loadMessages(
+      _myId,
+      widget.chatId,
+      limit: 20,
+    );
+    if (!mounted) return;
+    if (firstRows.isNotEmpty) {
+      final first = firstRows.reversed
+          .map((r) => CachedMessage.fromDbRow(r))
+          .toList();
+      setState(() {
+        _messages = first;
+        _messagesRevision++;
+        _isLoading = false;
+        _onLoadingFinished();
+      });
+    }
+  }
+
   void _onFirstFrameRendered(Duration _) {
     if (!mounted) return;
     if (widget.embedded) {
@@ -192,37 +278,15 @@ class _ChatScreenState extends State<ChatScreen>
   }
 
   Future<void> _loadHistory() async {
-    final activeProfile = await AppDatabase.loadActiveProfile();
-    _myId = activeProfile?.id ?? 0;
-    ChatsModule.getChat(_myId, widget.chatId).then((value) {
-      if (mounted && value.isNotEmpty) {
-        setState(() { chat = value.first; });
-        _recomputeHeaderStatus();
-      }
-    }).catchError((_) {});
+    if (_myId == 0) {
+      final activeProfile = await AppDatabase.loadActiveProfile();
+      if (!mounted) return;
+      _myId = activeProfile?.id ?? 0;
+    }
     if (widget.chatType == 'DIALOG') {
       unawaited(_loadOtherPresence());
     }
-
-    final firstRows = await AppDatabase.loadMessages(
-      _myId,
-      widget.chatId,
-      limit: 20,
-    );
-    if (mounted && firstRows.isNotEmpty) {
-      final first = firstRows.reversed
-          .map((r) => CachedMessage.fromDbRow(r))
-          .toList();
-      setState(() {
-        _messages = first;
-        if (api.state == SessionState.online) {
-          _isLoading = false;
-          _onLoadingFinished();
-        }
-      });
-    }
-
-    unawaited(_loadRemainingHistory());
+    await _loadRemainingHistory();
   }
 
   Future<void> _loadRemainingHistory() async {
@@ -235,8 +299,20 @@ class _ChatScreenState extends State<ChatScreen>
       _applyMergedMessages(fullRows);
     }
 
+    if (!ChatsModule.isChatDirty(widget.chatId) && fullRows.isNotEmpty) {
+      if (mounted) {
+        setState(() {
+          _isLoading = false;
+          _onLoadingFinished();
+        });
+      }
+      _loadForwardedSenderNames();
+      return;
+    }
+
     try {
       await messagesModule.fetchHistory(_myId, widget.chatId);
+      ChatsModule.markChatClean(widget.chatId);
       final updatedRows = await AppDatabase.loadMessages(
         _myId,
         widget.chatId,
@@ -245,6 +321,7 @@ class _ChatScreenState extends State<ChatScreen>
       if (mounted) {
         _applyMergedMessages(updatedRows, markLoaded: true);
       }
+      unawaited(ChatsModule.reconcileLastMessageIfPlaceholder(_myId, widget.chatId));
       _loadForwardedSenderNames();
     } catch (e) {
       debugPrint('Error fetching history: $e');
@@ -274,12 +351,42 @@ class _ChatScreenState extends State<ChatScreen>
     final changed = !_listsEquivalent(_messages, merged);
     if (!changed && !markLoaded) return;
     setState(() {
-      if (changed) _messages = merged;
+      if (changed) {
+        _messages = merged;
+        _messagesRevision++;
+      }
       if (markLoaded) {
         _isLoading = false;
         _onLoadingFinished();
       }
     });
+    if (changed) {
+      _syncReactionNotifiersFromMessages();
+      _pruneReactionNotifiers();
+    }
+  }
+
+  void _syncReactionNotifiersFromMessages() {
+    for (final m in _messages) {
+      final info = m.payload?['reactionInfo'];
+      final value = info is Map ? Map<String, dynamic>.from(info) : null;
+      final existing = _reactionNotifiers[m.id];
+      if (existing == null) {
+        _reactionNotifiers[m.id] = ValueNotifier(value);
+      } else if (!_reactionsEqual(existing.value, value)) {
+        existing.value = value;
+      }
+    }
+  }
+
+  bool _reactionsEqual(Map<String, dynamic>? a, Map<String, dynamic>? b) {
+    if (identical(a, b)) return true;
+    if (a == null || b == null) return false;
+    if (a.length != b.length) return false;
+    for (final k in a.keys) {
+      if (a[k].toString() != b[k].toString()) return false;
+    }
+    return true;
   }
 
   bool _sameMessage(CachedMessage a, CachedMessage b) {
@@ -311,11 +418,18 @@ class _ChatScreenState extends State<ChatScreen>
     _showAttachmentPanel.dispose();
     _uploadSub?.cancel();
     _pushSub?.cancel();
+    _messageEventSub?.cancel();
+    for (final n in _reactionNotifiers.values) {
+      n.dispose();
+    }
+    _reactionNotifiers.clear();
     for (final t in _typingTimers.values) {
       t.cancel();
     }
     _typingTimers.clear();
     _headerStatusNotifier.dispose();
+    _otherReadTime.dispose();
+    _finishPrankReveal();
     _uploadStatus.dispose();
     _attachAnim.dispose();
     _messageController.dispose();
@@ -340,17 +454,124 @@ class _ChatScreenState extends State<ChatScreen>
     }
   }
 
-  String? _effectiveStatus(CachedMessage msg) {
-    if (msg.senderId != _myId) return null;
-    if (msg.status == 'sending' || msg.status == 'error') return msg.status;
+  int _computeOtherReadTime() {
     final c = chat;
-    if (c == null) return 'sent';
+    if (c == null) return 0;
     int otherReadTime = 0;
     for (final entry in c.participants.entries) {
       if (entry.key != _myId && entry.value > otherReadTime) {
         otherReadTime = entry.value;
       }
     }
+    return otherReadTime;
+  }
+
+  void _syncOtherReadTime() {
+    final t = _computeOtherReadTime();
+    if (_otherReadTime.value != t) _otherReadTime.value = t;
+  }
+
+  void _checkPrankTrigger(CachedMessage msg) {
+    if (!AppPranks.current.value || _prankActive || _prankBubbleId != null) {
+      return;
+    }
+    if ((msg.text ?? '').trim().toUpperCase() != 'THE WORLD') return;
+    setState(() => _prankBubbleId = msg.id);
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted) _runPrankReveal();
+    });
+  }
+
+  ThemeData _prankPinkTheme(ThemeData base) {
+    final cs = base.colorScheme;
+    return base.copyWith(
+      scaffoldBackgroundColor: const Color(0xFFFFF0F5),
+      colorScheme: cs.copyWith(
+        surface: const Color(0xFFFFF0F5),
+        surfaceContainerHigh: const Color(0xFFFFE3EC),
+        surfaceContainerHighest: const Color(0xFFFFD9E6),
+        primary: const Color(0xFFE8579A),
+        primaryContainer: const Color(0xFFFFD6E5),
+        onPrimaryContainer: const Color(0xFF7A1F4B),
+      ),
+    );
+  }
+
+  void _runPrankReveal() {
+    if (_prankActive) return;
+    final overlay = Navigator.of(context).overlay;
+    final captureCtx = _prankCaptureKey.currentContext;
+    final renderObject = captureCtx?.findRenderObject();
+    if (overlay == null || renderObject is! RenderRepaintBoundary) {
+      setState(() => _prankActive = true);
+      return;
+    }
+
+    Offset center;
+    final bubbleBox =
+        _prankBubbleKey.currentContext?.findRenderObject() as RenderBox?;
+    if (bubbleBox != null && bubbleBox.attached) {
+      center = bubbleBox.localToGlobal(bubbleBox.size.center(Offset.zero));
+    } else {
+      final size = MediaQuery.sizeOf(context);
+      center = Offset(size.width / 2, size.height / 2);
+    }
+
+    final ui.Image snapshot;
+    try {
+      final dpr = math.min(MediaQuery.of(context).devicePixelRatio, 2.0);
+      snapshot = renderObject.toImageSync(pixelRatio: dpr);
+    } catch (_) {
+      setState(() => _prankActive = true);
+      return;
+    }
+
+    _finishPrankReveal();
+
+    final controller = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 650),
+    );
+    final entry = ThemeRevealOverlay.build(
+      snapshot: snapshot,
+      center: center,
+      animation: controller,
+    );
+
+    _prankRevealController = controller;
+    _prankRevealEntry = entry;
+    _prankRevealImage = snapshot;
+
+    overlay.insert(entry);
+    setState(() => _prankActive = true);
+    Haptics.success();
+
+    WidgetsBinding.instance.endOfFrame.then((_) {
+      if (_prankRevealController != controller) return;
+      controller.forward().then((_) {
+        if (_prankRevealController != controller) return;
+        _finishPrankReveal();
+      }, onError: (_) {});
+    });
+  }
+
+  void _finishPrankReveal() {
+    _prankRevealEntry?.remove();
+    _prankRevealEntry = null;
+    _prankRevealController?.dispose();
+    _prankRevealController = null;
+    final img = _prankRevealImage;
+    _prankRevealImage = null;
+    if (img != null) {
+      WidgetsBinding.instance.addPostFrameCallback((_) => img.dispose());
+    }
+  }
+
+  String? _effectiveStatus(CachedMessage msg) {
+    if (msg.senderId != _myId) return null;
+    if (msg.status == 'sending' || msg.status == 'error') return msg.status;
+    if (chat == null) return 'sent';
+    final otherReadTime = _otherReadTime.value;
     if (otherReadTime > 0 && otherReadTime >= msg.time) return 'read';
     return 'sent';
   }
@@ -358,8 +579,6 @@ class _ChatScreenState extends State<ChatScreen>
   void _onIncomingPush(Packet packet) {
     if (!mounted) return;
     switch (packet.opcode) {
-      case Opcode.notifMessage:
-        _onIncomingMessage(packet);
       case Opcode.notifMark:
         _onMessageRead(packet);
       case Opcode.notifTyping:
@@ -367,23 +586,51 @@ class _ChatScreenState extends State<ChatScreen>
     }
   }
 
+  void _onMessageEvent(MessageEvent event) {
+    if (!mounted) return;
+    switch (event) {
+      case MessageAddedEvent(:final message):
+        if (message.senderId == _myId) return;
+        if (_messages.any((m) => m.id == message.id)) return;
+        setState(() {
+          _lastSentId = message.id;
+          _messages.add(message);
+          _messagesRevision++;
+        });
+        _clearTyping(message.senderId);
+        Haptics.tap();
+        _scrollToBottom();
+        _checkPrankTrigger(message);
+      case MessageEditedEvent(:final message):
+        final idx = _messages.indexWhere((m) => m.id == message.id);
+        if (idx == -1) return;
+        setState(() {
+          _messages[idx] = message;
+          _messagesRevision++;
+        });
+      case MessageRemovedEvent(:final messageId):
+        final idx = _messages.indexWhere((m) => m.id == messageId);
+        if (idx == -1) return;
+        setState(() {
+          _messages.removeAt(idx);
+          _messagesRevision++;
+        });
+        _reactionNotifiers.remove(messageId)?.dispose();
+      case MessageReactionsChangedEvent(:final messageId, :final reactionInfo):
+        _reactionNotifiers[messageId]?.value = reactionInfo;
+    }
+  }
+
   Future<void> _loadOtherPresence() async {
     if (_myId == 0) return;
     final otherId = widget.chatId ^ _myId;
     if (otherId <= 0) return;
     try {
-      final p = await api.sendRequest(
-        Opcode.contactPresence,
-        {'contactIds': [otherId]},
-      );
-      if (!mounted) return;
-      final presence = (p.payload as Map?)?['presence'] as Map?;
-      final entry = presence?[otherId.toString()] ?? presence?[otherId];
-      if (entry is Map) {
-        _otherStatus = (entry['status'] as int?) ?? 0;
-        _otherSeenTime = entry['seen'] as int?;
-        _recomputeHeaderStatus();
-      }
+      final entry = await PresenceFetch.get(otherId);
+      if (!mounted || entry == null) return;
+      _otherStatus = (entry['status'] as int?) ?? 0;
+      _otherSeenTime = entry['seen'] as int?;
+      _recomputeHeaderStatus();
     } catch (_) {}
   }
 
@@ -408,10 +655,12 @@ class _ChatScreenState extends State<ChatScreen>
   String _headerStatus() {
     if (_typingUserIds.isNotEmpty) return 'Печатает...';
     if (widget.chatType == 'CHAT') {
-      return '${chat?.participants.length ?? 0} участников';
+      final count = _participantsCount ?? chat?.participants.length ?? 0;
+      return '$count участников';
     }
     if (widget.chatType == 'CHANNEL') {
-      return '${chat?.participants.length ?? 0} подписчиков';
+      final count = _participantsCount ?? chat?.participants.length ?? 0;
+      return '$count подписчиков';
     }
     if (_otherStatus == 1) return 'В сети';
     if (_otherStatus == 3) return 'Был(-а) недавно';
@@ -458,56 +707,8 @@ class _ChatScreenState extends State<ChatScreen>
     final c = chat;
     if (c == null) return;
     if (c.participants[userId] == mark) return;
-    setState(() {
-      c.participants[userId] = mark;
-    });
-  }
-
-  void _onIncomingMessage(Packet packet) {
-    if (!mounted) return;
-    final payload = packet.payload;
-    if (payload is! Map) return;
-    final chatId = payload['chatId'];
-    if (chatId != widget.chatId) return;
-    final msg = payload['message'];
-    if (msg is! Map) return;
-
-    final senderId = msg['sender'];
-    if (senderId is! int) return;
-    if (senderId == _myId) return;
-
-    final msgId = msg['id']?.toString();
-    if (msgId == null || msgId.isEmpty) return;
-    if (_messages.any((m) => m.id == msgId)) return;
-
-    List<MessageAttachment>? attachments;
-    final attaches = msg['attaches'];
-    if (attaches is List && attaches.isNotEmpty) {
-      attachments = attaches
-          .whereType<Map>()
-          .map((a) => MessageAttachment.fromMap(Map<String, dynamic>.from(a)))
-          .toList();
-    }
-
-    final cached = CachedMessage(
-      id: msgId,
-      accountId: _myId,
-      chatId: widget.chatId,
-      senderId: senderId,
-      text: msg['text'] as String?,
-      time: (msg['time'] as int?) ?? DateTime.now().millisecondsSinceEpoch,
-      status: 'sent',
-      payload: Map<String, dynamic>.from(msg),
-      attachments: attachments,
-    );
-
-    setState(() {
-      _lastSentId = msgId;
-      _messages.add(cached);
-    });
-    _clearTyping(senderId);
-    Haptics.tap();
-    _scrollToBottom();
+    c.participants[userId] = mark;
+    _syncOtherReadTime();
   }
 
   Future<void> _sendMessage() async {
@@ -533,30 +734,36 @@ class _ChatScreenState extends State<ChatScreen>
       setState(() {
         _lastSentId = tempId;
         _messages.add(tempMessage);
+        _messagesRevision++;
         _messageController.clear();
       });
+      unawaited(_persistOutgoing(tempMessage));
 
       // Instant tactile "whoosh" the moment the message leaves the composer,
       // not after the network round-trip — feedback must feel immediate.
       Haptics.send();
 
       _scrollToBottom();
+      _checkPrankTrigger(tempMessage);
 
       final actualId = await messagesModule.sendMessage(_myId, widget.chatId, text);
 
       final index = _messages.indexWhere((m) => m.id == tempId);
       if (index != -1 && mounted) {
+        final sent = CachedMessage(
+          id: actualId.isNotEmpty ? actualId : tempId,
+          accountId: _myId,
+          chatId: widget.chatId,
+          senderId: _myId,
+          text: text,
+          time: now,
+          status: 'sent',
+        );
         setState(() {
-          _messages[index] = CachedMessage(
-            id: actualId.isNotEmpty ? actualId : tempId,
-            accountId: _myId,
-            chatId: widget.chatId,
-            senderId: _myId,
-            text: text,
-            time: now,
-            status: 'sent',
-          );
+          _messages[index] = sent;
+          _messagesRevision++;
         });
+        unawaited(_persistOutgoing(sent, removeId: tempId));
       }
 
       if (chat == null) {
@@ -564,6 +771,7 @@ class _ChatScreenState extends State<ChatScreen>
           ChatsModule.refreshChats(api, [widget.chatId]).then((list) {
             if (!mounted || list.isEmpty) return;
             setState(() => chat = list.first);
+            _syncOtherReadTime();
           }),
         );
       }
@@ -571,21 +779,33 @@ class _ChatScreenState extends State<ChatScreen>
       Haptics.error();
       final index = _messages.indexWhere((m) => m.id == tempId);
       if (index != -1 && mounted) {
+        final failed = CachedMessage(
+          id: tempId,
+          accountId: _myId,
+          chatId: widget.chatId,
+          senderId: _myId,
+          text: text,
+          time: now,
+          status: 'error',
+        );
         setState(() {
-          _messages[index] = CachedMessage(
-            id: tempId,
-            accountId: _myId,
-            chatId: widget.chatId,
-            senderId: _myId,
-            text: text,
-            time: now,
-            status: 'error',
-          );
+          _messages[index] = failed;
+          _messagesRevision++;
         });
+        unawaited(_persistOutgoing(failed));
       }
     }
   }
 
+  Future<void> _persistOutgoing(CachedMessage msg, {String? removeId}) async {
+    try {
+      if (removeId != null && removeId != msg.id) {
+        await AppDatabase.deleteMessage(_myId, widget.chatId, removeId);
+      }
+      await AppDatabase.saveMessages([msg.toDbRow()]);
+    } catch (_) {}
+  }
+
   Future<void> _loadForwardedSenderNames() async {
     final forwardIds = <int>{};
     for (final msg in _messages) {
@@ -601,48 +821,61 @@ class _ChatScreenState extends State<ChatScreen>
     }
     if (forwardIds.isEmpty) return;
 
+    final resolved = <int, ({String name, String? avatar})>{};
     for (final id in forwardIds) {
       final name = await messagesModule.searchContactById(id);
-      final avatar = ContactCache.getAvatar(id);
-      if (name != null && mounted) {
-        setState(() {
-          for (var i = 0; i < _messages.length; i++) {
-            final msg = _messages[i];
-            if (msg.attachments != null) {
-              final newAttaches = msg.attachments!.map((a) {
-                if (a is ForwardedMessageAttachment &&
-                    a.originalSenderId == id &&
-                    a.originalSenderName == null) {
-                  return ForwardedMessageAttachment(
-                    originalSenderId: id,
-                    originalSenderName: name,
-                    originalSenderAvatar: avatar,
-                    originalMessageId: a.originalMessageId,
-                    originalTime: a.originalTime,
-                    originalText: a.originalText,
-                    originalChatId: a.originalChatId,
-                    originalAttachments: a.originalAttachments,
-                    originalContact: a.originalContact,
-                  );
-                }
-                return a;
-              }).toList();
-              _messages[i] = CachedMessage(
-                id: msg.id,
-                accountId: msg.accountId,
-                chatId: msg.chatId,
-                senderId: msg.senderId,
-                text: msg.text,
-                time: msg.time,
-                status: msg.status,
-                payload: msg.payload,
-                attachments: newAttaches,
-              );
-            }
-          }
-        });
+      if (name != null) {
+        resolved[id] = (name: name, avatar: ContactCache.getAvatar(id));
       }
     }
+    if (resolved.isEmpty || !mounted) return;
+
+    var anyChanged = false;
+    for (var i = 0; i < _messages.length; i++) {
+      final msg = _messages[i];
+      final attaches = msg.attachments;
+      if (attaches == null) continue;
+
+      var msgChanged = false;
+      final newAttaches = attaches.map((a) {
+        if (a is ForwardedMessageAttachment &&
+            a.originalSenderName == null &&
+            resolved.containsKey(a.originalSenderId)) {
+          final r = resolved[a.originalSenderId]!;
+          msgChanged = true;
+          return ForwardedMessageAttachment(
+            originalSenderId: a.originalSenderId,
+            originalSenderName: r.name,
+            originalSenderAvatar: r.avatar,
+            originalMessageId: a.originalMessageId,
+            originalTime: a.originalTime,
+            originalText: a.originalText,
+            originalChatId: a.originalChatId,
+            originalAttachments: a.originalAttachments,
+            originalContact: a.originalContact,
+          );
+        }
+        return a;
+      }).toList();
+
+      if (!msgChanged) continue;
+      anyChanged = true;
+      _messages[i] = CachedMessage(
+        id: msg.id,
+        accountId: msg.accountId,
+        chatId: msg.chatId,
+        senderId: msg.senderId,
+        text: msg.text,
+        time: msg.time,
+        status: msg.status,
+        payload: msg.payload,
+        attachments: newAttaches,
+      );
+    }
+
+    if (anyChanged) {
+      setState(() => _messagesRevision++);
+    }
   }
 
   void _scrollToBottom() {
@@ -658,6 +891,10 @@ class _ChatScreenState extends State<ChatScreen>
   }
 
   List<Object> _buildCombinedItems() {
+    final key = Object.hash(_messagesRevision, _messages.length);
+    final cached = _combinedItemsCache;
+    if (cached != null && _combinedItemsKey == key) return cached;
+
     final List<Object> items = [];
     final Set<int> usedDates = {};
 
@@ -690,30 +927,29 @@ class _ChatScreenState extends State<ChatScreen>
     }
 
     _separatorKeys.removeWhere((k, _) => !usedDates.contains(k));
+    _combinedItemsCache = items;
+    _combinedItemsKey = key;
     return items;
   }
 
   void _onScrollForDate() {
     if (!_scrollController.hasClients) return;
-    final currentOffset = _scrollController.position.pixels;
-    final scrollingUp = currentOffset > _lastScrollOffset;
-    _lastScrollOffset = currentOffset;
 
     _floatingDateTimer?.cancel();
-
-    if (!scrollingUp) {
-      _floatingDateAnimController.reverse();
-      return;
-    }
-
-    _floatingDateTimer = Timer(const Duration(seconds: 2), () {
+    _floatingDateTimer = Timer(const Duration(seconds: 1), () {
       if (mounted) _floatingDateAnimController.reverse();
     });
-    WidgetsBinding.instance.addPostFrameCallback((_) => _updateFloatingDate());
+
+    if (_floatingDateScheduled) return;
+    _floatingDateScheduled = true;
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      _floatingDateScheduled = false;
+      _updateFloatingDate();
+    });
   }
 
   void _updateFloatingDate() {
-    if (!mounted) return;
+    if (!mounted || _separatorKeys.isEmpty) return;
     DateTime? result;
 
     final listRenderBox = _listKey.currentContext?.findRenderObject();
@@ -792,11 +1028,17 @@ class _ChatScreenState extends State<ChatScreen>
 
   @override
   Widget build(BuildContext context) {
-    final cs = Theme.of(context).colorScheme;
+    final theme =
+        _prankActive ? _prankPinkTheme(Theme.of(context)) : Theme.of(context);
+    final cs = theme.colorScheme;
 
     // TODO: Локализация
     // TODO: Cклонения
-    return ValueListenableBuilder<bool>(
+    return Theme(
+      data: theme,
+      child: RepaintBoundary(
+        key: _prankCaptureKey,
+        child: ValueListenableBuilder<bool>(
       valueListenable: AppSwipeBackDesktop.current,
       builder: (context, desktopSwipe, child) => SwipeToPop(
         enabled: widget.embedded && desktopSwipe,
@@ -952,6 +1194,8 @@ class _ChatScreenState extends State<ChatScreen>
         ],
       ),
       ),
+        ),
+      ),
     );
   }
 
@@ -972,7 +1216,9 @@ class _ChatScreenState extends State<ChatScreen>
     return Stack(
       key: _listKey,
       children: [
-        ValueListenableBuilder<double>(
+        ValueListenableBuilder<int>(
+          valueListenable: _otherReadTime,
+          builder: (context, _, _) => ValueListenableBuilder<double>(
           valueListenable: AppCacheExtent.current,
           builder: (context, cacheExtent, _) => ListView.builder(
           controller: _scrollController,
@@ -1006,6 +1252,7 @@ class _ChatScreenState extends State<ChatScreen>
               nextMessage: nextMessage,
               chatType: chat?.type ?? 'CHAT',
               overrideStatus: _effectiveStatus(message),
+              reactionsListenable: _reactionNotifierFor(message),
             );
 
             final pressable = _LongPressBubble(
@@ -1024,13 +1271,17 @@ class _ChatScreenState extends State<ChatScreen>
                   )
                 : pressable;
 
-            return RepaintBoundary(
+            final builtItem = RepaintBoundary(
               key: ValueKey('msg_${message.id}'),
               child: child,
             );
+            return message.id == _prankBubbleId
+                ? KeyedSubtree(key: _prankBubbleKey, child: builtItem)
+                : builtItem;
           },
         ),
         ),
+        ),
         Positioned(
           top: 8,
           left: 0,
@@ -1385,6 +1636,7 @@ class _ChatScreenState extends State<ChatScreen>
     setState(() {
       _lastSentId = tempId;
       _messages.add(msg);
+      _messagesRevision++;
     });
     Haptics.send();
     _scrollToBottom();
@@ -1412,6 +1664,7 @@ class _ChatScreenState extends State<ChatScreen>
         payload: old.payload,
         attachments: attachment != null ? [attachment] : old.attachments,
       );
+      _messagesRevision++;
     });
   }
 

lib/frontend/screens/chats/create_group_flow.dart

@@ -8,6 +8,7 @@ import 'package:material_symbols_icons/symbols.dart';
 import '../../../backend/modules/chats.dart';
 import '../../../backend/modules/contacts.dart';
 import '../../../core/storage/token_storage.dart';
+import '../../../core/utils/image_utils.dart';
 import '../../../main.dart';
 import '../../widgets/custom_notification.dart';
 import '../../widgets/swipe_route.dart';
@@ -131,16 +132,20 @@ class _CreateGroupFlowState extends State<_CreateGroupFlow> {
       if (_avatar != null) {
         final url = await ChatsModule.requestChatPhotoUploadUrl(api);
         if (url != null) {
-          final bytes = await _avatar!.readAsBytes();
-          final token = await fileUploader.uploadImage(
-            Uri.parse(url),
-            bytes,
-            filename: _avatar!.uri.pathSegments.last,
-          );
-          if (token != null) {
-            await ChatsModule.setChatPhoto(api, chatId: chat.id, photoToken: token);
-          } else if (mounted) {
-            showCustomNotification(context, 'Не удалось загрузить аватарку');
+          final bytes = await compressAvatar(await _avatar!.readAsBytes());
+          if (bytes == null) {
+            if (mounted) showCustomNotification(context, 'Не удалось обработать аватарку');
+          } else {
+            final token = await fileUploader.uploadImage(
+              Uri.parse(url),
+              bytes,
+              filename: 'avatar.jpg',
+            );
+            if (token != null) {
+              await ChatsModule.setChatPhoto(api, chatId: chat.id, photoToken: token);
+            } else if (mounted) {
+              showCustomNotification(context, 'Не удалось загрузить аватарку');
+            }
           }
         }
       }

lib/frontend/screens/contacts/contact_profile_screen.dart

@@ -2,10 +2,9 @@ import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:material_symbols_icons/symbols.dart';
 
-import '../../../core/protocol/opcode_map.dart';
+import '../../../core/cache/info_cache.dart';
 import '../../../core/storage/app_database.dart';
 import '../../../core/storage/token_storage.dart';
-import '../../../main.dart';
 import '../../widgets/custom_notification.dart';
 import '../../widgets/swipe_route.dart';
 import '../chats/chat_screen.dart';
@@ -41,25 +40,18 @@ class _ContactProfileScreenState extends State<ContactProfileScreen> {
   Future<void> _load() async {
     try {
       final results = await Future.wait([
-        api.sendRequest(Opcode.contactInfo, {'contactIds': [widget.contactId]}),
-        api.sendRequest(Opcode.contactPresence, {'contactIds': [widget.contactId]}),
+        ContactInfoFetch.get(widget.contactId),
+        PresenceFetch.get(widget.contactId),
       ]);
       if (!mounted) return;
-      final infoPacket = results[0];
-      if (infoPacket.isOk) {
-        final contacts = (infoPacket.payload as Map?)?['contacts'] as List?;
-        if (contacts != null && contacts.isNotEmpty) {
-          _contact = Map<String, dynamic>.from(contacts.first as Map);
-        }
+      final contact = results[0];
+      if (contact != null) {
+        _contact = contact;
       }
-      final presencePacket = results[1];
-      if (presencePacket.isOk) {
-        final presence = (presencePacket.payload as Map?)?['presence'] as Map?;
-        final p = presence?[widget.contactId.toString()] ?? presence?[widget.contactId];
-        if (p is Map) {
-          _seenTime = p['seen'] as int?;
-          _presenceStatus = (p['status'] as int?) ?? 0;
-        }
+      final presence = results[1];
+      if (presence != null) {
+        _seenTime = presence['seen'] as int?;
+        _presenceStatus = (presence['status'] as int?) ?? 0;
       }
     } catch (e) {
       if (mounted) showCustomNotification(context, 'Ошибка: $e');

lib/frontend/screens/profile/cloud_storage_screen.dart

@@ -43,7 +43,7 @@ class _CloudStorageScreenState extends State<CloudStorageScreen>
   int? _accountId;
   List<CloudFile> _files = [];
   bool _isUploading = false;
-  double _uploadProgress = 0;
+  final ValueNotifier<double> _uploadProgress = ValueNotifier(0);
   bool _animateNewCard = false;
 
   @override
@@ -68,16 +68,19 @@ class _CloudStorageScreenState extends State<CloudStorageScreen>
     }
     mgr.onProgress = (progress, _) {
       if (!mounted) return;
-      setState(() { _isUploading = true; _uploadProgress = progress; });
+      if (!_isUploading) setState(() => _isUploading = true);
+      _uploadProgress.value = progress;
     };
     mgr.onDone = (file) {
       if (!mounted) return;
-      setState(() { _isUploading = false; _uploadProgress = 0; });
+      _uploadProgress.value = 0;
+      setState(() => _isUploading = false);
       _prependFile(file);
     };
     mgr.onError = (msg) {
       if (!mounted) return;
-      setState(() { _isUploading = false; _uploadProgress = 0; });
+      _uploadProgress.value = 0;
+      setState(() => _isUploading = false);
       showCustomNotification(context, 'Ошибка: $msg');
     };
   }
@@ -91,6 +94,7 @@ class _CloudStorageScreenState extends State<CloudStorageScreen>
     _mode.dispose();
     _pageController.dispose();
     _currentFilePage.dispose();
+    _uploadProgress.dispose();
     super.dispose();
   }
 
@@ -218,7 +222,8 @@ class _CloudStorageScreenState extends State<CloudStorageScreen>
     final picked = result.files.first;
     if (picked.path == null) return;
 
-    setState(() { _isUploading = true; _uploadProgress = 0; });
+    _uploadProgress.value = 0;
+    setState(() => _isUploading = true);
 
     await UploadManager.instance.start(
       chatId: chatId,
@@ -427,17 +432,27 @@ class _CloudStorageScreenState extends State<CloudStorageScreen>
                 const SizedBox(height: 16),
               ],
               if (_isUploading) ...[
-                LinearProgressIndicator(
-                  value: _uploadProgress,
-                  borderRadius: BorderRadius.circular(4),
-                  minHeight: 5,
-                  color: cs.primary,
-                  backgroundColor: cs.surfaceContainerHighest,
-                ),
-                const SizedBox(height: 8),
-                Text(
-                  'Загрузка ${(_uploadProgress * 100).toStringAsFixed(0)}%',
-                  style: TextStyle(color: cs.onSurfaceVariant, fontSize: 13),
+                ValueListenableBuilder<double>(
+                  valueListenable: _uploadProgress,
+                  builder: (context, progress, _) => Column(
+                    mainAxisSize: MainAxisSize.min,
+                    crossAxisAlignment: CrossAxisAlignment.stretch,
+                    children: [
+                      LinearProgressIndicator(
+                        value: progress,
+                        borderRadius: BorderRadius.circular(4),
+                        minHeight: 5,
+                        color: cs.primary,
+                        backgroundColor: cs.surfaceContainerHighest,
+                      ),
+                      const SizedBox(height: 8),
+                      Text(
+                        'Загрузка ${(progress * 100).toStringAsFixed(0)}%',
+                        style:
+                            TextStyle(color: cs.onSurfaceVariant, fontSize: 13),
+                      ),
+                    ],
+                  ),
                 ),
               ] else if (_files.isEmpty) ...[
                 Text(

lib/frontend/screens/profile/debug_menu_screen.dart

@@ -4,11 +4,18 @@ import 'package:flutter/services.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import '../../../backend/modules/chats.dart';
 import '../../../core/config/app_swipe_back_desktop.dart';
+import '../../../core/config/app_pranks.dart';
+import '../../../core/config/app_stories.dart';
+import '../../../core/config/app_media_cache.dart';
 import '../../../core/protocol/opcode_map.dart';
+import '../../../core/storage/app_database.dart';
 import '../../../core/protocol/packet.dart';
 import '../../../core/utils/logger.dart';
+import '../../../core/utils/media_cache.dart';
 import '../../../main.dart';
 import '../../widgets/custom_notification.dart';
+import '../../widgets/login_success_screen.dart';
+import '../calls/call_screen.dart';
 
 class DebugMenuScreen extends StatefulWidget {
   const DebugMenuScreen({super.key});
@@ -23,6 +30,92 @@ class _DebugMenuScreenState extends State<DebugMenuScreen> {
   bool _hasSearched = false;
   final List<_SearchHit> _hits = [];
   final Map<String, String> _errors = {};
+  int _cacheSize = 0;
+  bool _clearingCache = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadCacheSize();
+  }
+
+  Future<void> _loadCacheSize() async {
+    final size = await MediaCache.currentSize();
+    if (mounted) setState(() => _cacheSize = size);
+  }
+
+  Future<void> _clearCache() async {
+    if (_clearingCache) return;
+    setState(() => _clearingCache = true);
+    final freed = await MediaCache.clear();
+    if (!mounted) return;
+    setState(() {
+      _clearingCache = false;
+      _cacheSize = 0;
+    });
+    showCustomNotification(context, 'Кэш очищен (${_formatBytes(freed)})');
+  }
+
+  void _pickCacheLimit() {
+    final cs = Theme.of(context).colorScheme;
+    showModalBottomSheet<void>(
+      context: context,
+      backgroundColor: cs.surfaceContainerHigh,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(24)),
+      ),
+      builder: (sheetContext) => SafeArea(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            const SizedBox(height: 8),
+            Padding(
+              padding: const EdgeInsets.fromLTRB(20, 12, 20, 8),
+              child: Align(
+                alignment: Alignment.centerLeft,
+                child: Text(
+                  'Лимит кэша медиа',
+                  style: TextStyle(
+                    color: cs.onSurface,
+                    fontSize: 18,
+                    fontWeight: FontWeight.w600,
+                  ),
+                ),
+              ),
+            ),
+            for (final preset in AppMediaCacheLimit.presets)
+              ListTile(
+                title: Text(
+                  _limitLabel(preset),
+                  style: TextStyle(color: cs.onSurface, fontSize: 16),
+                ),
+                trailing: AppMediaCacheLimit.current.value == preset
+                    ? Icon(Symbols.check, color: cs.primary)
+                    : null,
+                onTap: () {
+                  AppMediaCacheLimit.save(preset);
+                  Navigator.pop(sheetContext);
+                  setState(() {});
+                },
+              ),
+            const SizedBox(height: 8),
+          ],
+        ),
+      ),
+    );
+  }
+
+  String _limitLabel(int bytes) =>
+      bytes <= 0 ? 'Без лимита' : _formatBytes(bytes);
+
+  String _formatBytes(int bytes) {
+    if (bytes < 1024) return '$bytes Б';
+    if (bytes < 1024 * 1024) return '${(bytes / 1024).toStringAsFixed(1)} КБ';
+    if (bytes < 1024 * 1024 * 1024) {
+      return '${(bytes / (1024 * 1024)).toStringAsFixed(1)} МБ';
+    }
+    return '${(bytes / (1024 * 1024 * 1024)).toStringAsFixed(2)} ГБ';
+  }
 
   @override
   void dispose() {
@@ -397,6 +490,404 @@ class _DebugMenuScreenState extends State<DebugMenuScreen> {
                 ),
               ),
             ),
+            SliverToBoxAdapter(
+              child: Padding(
+                padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
+                child: ValueListenableBuilder<bool>(
+                  valueListenable: AppPranks.current,
+                  builder: (context, pranksOn, _) {
+                    return Container(
+                      decoration: BoxDecoration(
+                        color: cs.surfaceContainerHigh,
+                        borderRadius: BorderRadius.circular(20),
+                      ),
+                      child: Padding(
+                        padding: const EdgeInsets.symmetric(
+                          horizontal: 20,
+                          vertical: 17,
+                        ),
+                        child: Row(
+                          children: [
+                            Icon(
+                              Symbols.auto_awesome,
+                              color: cs.onSurfaceVariant,
+                              size: 22,
+                              weight: 400,
+                            ),
+                            const SizedBox(width: 16),
+                            Expanded(
+                              child: Column(
+                                crossAxisAlignment: CrossAxisAlignment.start,
+                                children: [
+                                  Text(
+                                    'Приколь4ики',
+                                    style: TextStyle(
+                                      color: cs.onSurface,
+                                      fontSize: 16,
+                                      fontWeight: FontWeight.w500,
+                                    ),
+                                  ),
+                                ],
+                              ),
+                            ),
+                            Switch(
+                              value: pranksOn,
+                              onChanged: (v) {
+                                AppPranks.save(v);
+                              },
+                            ),
+                          ],
+                        ),
+                      ),
+                    );
+                  },
+                ),
+              ),
+            ),
+            SliverToBoxAdapter(
+              child: Padding(
+                padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
+                child: ValueListenableBuilder<bool>(
+                  valueListenable: AppStories.current,
+                  builder: (context, storiesOn, _) {
+                    return Container(
+                      decoration: BoxDecoration(
+                        color: cs.surfaceContainerHigh,
+                        borderRadius: BorderRadius.circular(20),
+                      ),
+                      child: Padding(
+                        padding: const EdgeInsets.symmetric(
+                          horizontal: 20,
+                          vertical: 17,
+                        ),
+                        child: Row(
+                          children: [
+                            Icon(
+                              Symbols.amp_stories,
+                              color: cs.onSurfaceVariant,
+                              size: 22,
+                              weight: 400,
+                            ),
+                            const SizedBox(width: 16),
+                            Expanded(
+                              child: Column(
+                                crossAxisAlignment: CrossAxisAlignment.start,
+                                children: [
+                                  Text(
+                                    'Истории',
+                                    style: TextStyle(
+                                      color: cs.onSurface,
+                                      fontSize: 16,
+                                      fontWeight: FontWeight.w500,
+                                    ),
+                                  ),
+                                  const SizedBox(height: 2),
+                                  Text(
+                                    'Отображение ленты историй в списке чатов',
+                                    style: TextStyle(
+                                      color: cs.onSurfaceVariant,
+                                      fontSize: 13,
+                                    ),
+                                  ),
+                                ],
+                              ),
+                            ),
+                            Switch(
+                              value: storiesOn,
+                              onChanged: (v) {
+                                AppStories.save(v);
+                              },
+                            ),
+                          ],
+                        ),
+                      ),
+                    );
+                  },
+                ),
+              ),
+            ),
+            SliverToBoxAdapter(
+              child: Padding(
+                padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
+                child: Material(
+                  color: cs.surfaceContainerHigh,
+                  borderRadius: BorderRadius.circular(20),
+                  child: InkWell(
+                    borderRadius: BorderRadius.circular(20),
+                    onTap: _pickCacheLimit,
+                    child: Padding(
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 20,
+                        vertical: 17,
+                      ),
+                      child: Row(
+                        children: [
+                          Icon(
+                            Symbols.data_usage,
+                            color: cs.onSurfaceVariant,
+                            size: 22,
+                            weight: 400,
+                          ),
+                          const SizedBox(width: 16),
+                          Expanded(
+                            child: Column(
+                              crossAxisAlignment: CrossAxisAlignment.start,
+                              children: [
+                                Text(
+                                  'Лимит кэша медиа',
+                                  style: TextStyle(
+                                    color: cs.onSurface,
+                                    fontSize: 16,
+                                    fontWeight: FontWeight.w500,
+                                  ),
+                                ),
+                                const SizedBox(height: 2),
+                                Text(
+                                  _limitLabel(AppMediaCacheLimit.current.value),
+                                  style: TextStyle(
+                                    color: cs.onSurfaceVariant,
+                                    fontSize: 13,
+                                  ),
+                                ),
+                              ],
+                            ),
+                          ),
+                          Icon(
+                            Symbols.chevron_right,
+                            color: cs.onSurfaceVariant,
+                            size: 22,
+                            weight: 400,
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                ),
+              ),
+            ),
+            SliverToBoxAdapter(
+              child: Padding(
+                padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
+                child: Material(
+                  color: cs.surfaceContainerHigh,
+                  borderRadius: BorderRadius.circular(20),
+                  child: InkWell(
+                    borderRadius: BorderRadius.circular(20),
+                    onTap: _clearingCache ? null : _clearCache,
+                    child: Padding(
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 20,
+                        vertical: 17,
+                      ),
+                      child: Row(
+                        children: [
+                          Icon(
+                            Symbols.delete_sweep,
+                            color: cs.onSurfaceVariant,
+                            size: 22,
+                            weight: 400,
+                          ),
+                          const SizedBox(width: 16),
+                          Expanded(
+                            child: Column(
+                              crossAxisAlignment: CrossAxisAlignment.start,
+                              children: [
+                                Text(
+                                  'Очистить кэш медиа',
+                                  style: TextStyle(
+                                    color: cs.onSurface,
+                                    fontSize: 16,
+                                    fontWeight: FontWeight.w500,
+                                  ),
+                                ),
+                                const SizedBox(height: 2),
+                                Text(
+                                  _clearingCache
+                                      ? 'Очистка…'
+                                      : 'Занято: ${_formatBytes(_cacheSize)}',
+                                  style: TextStyle(
+                                    color: cs.onSurfaceVariant,
+                                    fontSize: 13,
+                                  ),
+                                ),
+                              ],
+                            ),
+                          ),
+                          if (_clearingCache)
+                            SizedBox(
+                              width: 20,
+                              height: 20,
+                              child: CircularProgressIndicator(
+                                strokeWidth: 2,
+                                color: cs.onSurfaceVariant,
+                              ),
+                            ),
+                        ],
+                      ),
+                    ),
+                  ),
+                ),
+              ),
+            ),
+            SliverToBoxAdapter(
+              child: Padding(
+                padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
+                child: Material(
+                  color: cs.surfaceContainerHigh,
+                  borderRadius: BorderRadius.circular(20),
+                  child: InkWell(
+                    borderRadius: BorderRadius.circular(20),
+                    onTap: () async {
+                      final profile = await AppDatabase.loadActiveProfile();
+                      if (!context.mounted) return;
+                      final avatar = await precacheLoginAvatar(
+                        context,
+                        profile?.baseUrl,
+                      );
+                      if (!context.mounted) return;
+                      Navigator.push(
+                        context,
+                        MaterialPageRoute(
+                          builder: (_) =>
+                              LoginSuccessScreen(preview: true, avatar: avatar),
+                        ),
+                      );
+                    },
+                    child: Padding(
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 20,
+                        vertical: 17,
+                      ),
+                      child: Row(
+                        children: [
+                          Icon(
+                            Symbols.celebration,
+                            color: cs.onSurfaceVariant,
+                            size: 22,
+                            weight: 400,
+                          ),
+                          const SizedBox(width: 16),
+                          Expanded(
+                            child: Column(
+                              crossAxisAlignment: CrossAxisAlignment.start,
+                              children: [
+                                Text(
+                                  'test hello',
+                                  style: TextStyle(
+                                    color: cs.onSurface,
+                                    fontSize: 16,
+                                    fontWeight: FontWeight.w500,
+                                  ),
+                                ),
+                                const SizedBox(height: 2),
+                                Text(
+                                  'Показать приветственную анимацию входа',
+                                  style: TextStyle(
+                                    color: cs.onSurfaceVariant,
+                                    fontSize: 13,
+                                  ),
+                                ),
+                              ],
+                            ),
+                          ),
+                          Icon(
+                            Symbols.chevron_right,
+                            color: cs.onSurfaceVariant,
+                            size: 22,
+                            weight: 400,
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                ),
+              ),
+            ),
+            SliverToBoxAdapter(
+              child: Padding(
+                padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
+                child: Container(
+                  decoration: BoxDecoration(
+                    color: cs.surfaceContainerHigh,
+                    borderRadius: BorderRadius.circular(20),
+                  ),
+                  padding: const EdgeInsets.all(16),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Text(
+                        'Экран звонка',
+                        style: TextStyle(
+                          color: cs.onSurface,
+                          fontSize: 16,
+                          fontWeight: FontWeight.w500,
+                        ),
+                      ),
+                      const SizedBox(height: 4),
+                      Text(
+                        'Превью экранов звонков',
+                        style: TextStyle(
+                          color: cs.onSurfaceVariant,
+                          fontSize: 13,
+                        ),
+                      ),
+                      const SizedBox(height: 12),
+                      Row(
+                        children: [
+                          Expanded(
+                            child: _DebugCallButton(
+                              label: 'Входящий',
+                              icon: Symbols.call_received,
+                              onTap: () => Navigator.push(
+                                context,
+                                MaterialPageRoute(
+                                  builder: (_) => const CallScreen(
+                                    name: 'Кирил Г.',
+                                    initialState: CallScreenState.incoming,
+                                  ),
+                                ),
+                              ),
+                            ),
+                          ),
+                          const SizedBox(width: 8),
+                          Expanded(
+                            child: _DebugCallButton(
+                              label: 'Исходящий',
+                              icon: Symbols.call_made,
+                              onTap: () => Navigator.push(
+                                context,
+                                MaterialPageRoute(
+                                  builder: (_) => const CallScreen(
+                                    name: 'Кирил Г.',
+                                    initialState: CallScreenState.outgoing,
+                                  ),
+                                ),
+                              ),
+                            ),
+                          ),
+                          const SizedBox(width: 8),
+                          Expanded(
+                            child: _DebugCallButton(
+                              label: 'Активный',
+                              icon: Symbols.phone_in_talk,
+                              onTap: () => Navigator.push(
+                                context,
+                                MaterialPageRoute(
+                                  builder: (_) => const CallScreen(
+                                    name: 'Кирил Г.',
+                                    initialState: CallScreenState.active,
+                                  ),
+                                ),
+                              ),
+                            ),
+                          ),
+                        ],
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+            ),
             SliverToBoxAdapter(
               child: Padding(
                 padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
@@ -813,4 +1304,47 @@ class _ErrorChip extends StatelessWidget {
       ),
     );
   }
+}
+
+class _DebugCallButton extends StatelessWidget {
+  final String label;
+  final IconData icon;
+  final VoidCallback onTap;
+
+  const _DebugCallButton({
+    required this.label,
+    required this.icon,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final cs = Theme.of(context).colorScheme;
+    return Material(
+      color: cs.surfaceContainerHighest,
+      borderRadius: BorderRadius.circular(14),
+      child: InkWell(
+        borderRadius: BorderRadius.circular(14),
+        onTap: onTap,
+        child: Padding(
+          padding: const EdgeInsets.symmetric(vertical: 12),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Icon(icon, color: cs.onSurfaceVariant, size: 22, fill: 1),
+              const SizedBox(height: 4),
+              Text(
+                label,
+                style: TextStyle(
+                  color: cs.onSurface,
+                  fontSize: 12,
+                  fontWeight: FontWeight.w500,
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
 }

lib/frontend/screens/profile/edit_profile_screen.dart

@@ -1,10 +1,14 @@
+import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import '../../../core/storage/app_database.dart';
+import '../../../core/utils/image_utils.dart';
 import '../../../l10n/app_localizations.dart';
-import '../../../main.dart' show accountModule, KometApp;
+import '../../../main.dart' show accountModule, fileUploader, KometApp;
 import '../../widgets/custom_notification.dart';
 
+const int _maxAvatarBytes = 8 * 1024 * 1024;
+
 class EditProfileScreen extends StatefulWidget {
   const EditProfileScreen({super.key});
 
@@ -77,12 +81,56 @@ class _EditProfileScreenState extends State<EditProfileScreen> {
 
   Future<void> _changeAvatar() async {
     if (_isSaving) return;
+    final result = await FilePicker.platform.pickFiles(
+      type: FileType.image,
+      withData: true,
+    );
+    if (result == null || result.files.isEmpty) return;
+    final picked = result.files.first;
+    final bytes = picked.bytes;
+    if (bytes == null) {
+      if (mounted) showCustomNotification(context, 'Не удалось прочитать файл');
+      return;
+    }
+    if (bytes.length > _maxAvatarBytes) {
+      if (mounted) showCustomNotification(context, 'Картинка слишком большая (макс 8 МБ)');
+      return;
+    }
+    if (!mounted) return;
+    setState(() => _isSaving = true);
     try {
-      final uploadUrl = await accountModule.getAvatarUploadUrl();
+      final processed = await compressAvatar(bytes);
+      if (processed == null) {
+        if (!mounted) return;
+        showCustomNotification(context, 'Не удалось обработать изображение');
+        setState(() => _isSaving = false);
+        return;
+      }
+      final url = await accountModule.getAvatarUploadUrl();
+      final token = await fileUploader.uploadImage(
+        Uri.parse(url),
+        processed,
+        filename: 'avatar.jpg',
+      );
+      if (token == null) {
+        if (!mounted) return;
+        showCustomNotification(context, 'Не удалось загрузить аватарку');
+        setState(() => _isSaving = false);
+        return;
+      }
+      final newProfile = await accountModule.updateProfileAvatar(token);
       if (!mounted) return;
-      showCustomNotification(context, 'Загрузка аватарки: $uploadUrl (пока нет)');
+      setState(() {
+        _avatarUrl = newProfile.baseUrl;
+        _photoId = newProfile.photoId;
+        _isSaving = false;
+      });
+      KometApp.stateOf(context)?.notifyProfileUpdate();
+      showCustomNotification(context, 'Аватарка обновлена');
     } catch (e) {
-      if (mounted) showCustomNotification(context, 'Ошибка: $e');
+      if (!mounted) return;
+      showCustomNotification(context, 'Ошибка: $e');
+      setState(() => _isSaving = false);
     }
   }
 

lib/frontend/screens/profile/font_settings_screen.dart

@@ -378,7 +378,9 @@ class _FontSizeControl extends StatelessWidget {
                     value: AppFonts.clampScale(scale),
                     min: AppFonts.minScale,
                     max: AppFonts.maxScale,
-                    divisions: 10,
+                    divisions:
+                        ((AppFonts.maxScale - AppFonts.minScale) / 0.05)
+                            .round(),
                     onChanged: onChanged,
                     onChangeEnd: onChangeEnd,
                   ),

lib/frontend/screens/profile/notifications_screen.dart

@@ -0,0 +1,291 @@
+import 'package:flutter/material.dart';
+import 'package:m3e_collection/m3e_collection.dart';
+import 'package:material_symbols_icons/symbols.dart';
+
+class NotificationsScreen extends StatefulWidget {
+  const NotificationsScreen({super.key});
+
+  @override
+  State<NotificationsScreen> createState() => _NotificationsScreenState();
+}
+
+class _NotificationsScreenState extends State<NotificationsScreen> {
+  bool _fkmEnabled = false;
+  bool _personalChatsEnabled = true;
+  bool _groupsEnabled = true;
+  bool _channelsEnabled = true;
+  String _selectedSound = 'По умолчанию';
+
+  static const List<String> _sounds = [
+    'По умолчанию',
+    'Колокольчик',
+    'Звон',
+    'Капля',
+    'Беззвучно',
+  ];
+
+  Future<void> _pickSound() async {
+    final cs = Theme.of(context).colorScheme;
+    final picked = await showModalBottomSheet<String>(
+      context: context,
+      backgroundColor: cs.surfaceContainerHigh,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(24)),
+      ),
+      builder: (context) {
+        return SafeArea(
+          child: Padding(
+            padding: const EdgeInsets.symmetric(vertical: 8),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                Padding(
+                  padding: const EdgeInsets.fromLTRB(20, 12, 20, 16),
+                  child: Row(
+                    children: [
+                      Text(
+                        'Звук уведомления',
+                        style: TextStyle(
+                          color: cs.onSurface,
+                          fontSize: 18,
+                          fontWeight: FontWeight.w600,
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+                for (final s in _sounds)
+                  ListTile(
+                    onTap: () => Navigator.of(context).pop(s),
+                    leading: Icon(
+                      s == _selectedSound
+                          ? Symbols.radio_button_checked
+                          : Symbols.radio_button_unchecked,
+                      color: s == _selectedSound
+                          ? cs.primary
+                          : cs.onSurfaceVariant,
+                    ),
+                    title: Text(
+                      s,
+                      style: TextStyle(
+                        color: cs.onSurface,
+                        fontSize: 16,
+                      ),
+                    ),
+                  ),
+              ],
+            ),
+          ),
+        );
+      },
+    );
+    if (picked != null && picked != _selectedSound) {
+      setState(() => _selectedSound = picked);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final cs = Theme.of(context).colorScheme;
+
+    return Scaffold(
+      backgroundColor: cs.surface,
+      appBar: AppBarM3E(
+        titleText: 'Уведомления',
+        backgroundColor: cs.surface,
+      ),
+      body: SafeArea(
+        top: false,
+        child: ListView(
+          physics: const BouncingScrollPhysics(),
+          padding: const EdgeInsets.fromLTRB(16, 12, 16, 120),
+          children: [
+            _sectionHeader(cs, 'FKM'),
+            _card(cs, [
+              _toggleRow(
+                cs,
+                icon: Symbols.notifications_active,
+                label: 'Включить уведомления',
+                subtitle:
+                    'Для работы FKM уведомлений, приложению понадобится держать уведомление в шторке.',
+                value: _fkmEnabled,
+                onChanged: (v) => setState(() => _fkmEnabled = v),
+              ),
+            ]),
+            const SizedBox(height: 20),
+            _sectionHeader(cs, 'Настройки уведомлений'),
+            _card(cs, [
+              _toggleRow(
+                cs,
+                icon: Symbols.person,
+                label: 'Уведомления от личных чатов',
+                value: _personalChatsEnabled,
+                onChanged: (v) => setState(() => _personalChatsEnabled = v),
+              ),
+              _divider(cs),
+              _toggleRow(
+                cs,
+                icon: Symbols.groups,
+                label: 'Уведомления от групп',
+                value: _groupsEnabled,
+                onChanged: (v) => setState(() => _groupsEnabled = v),
+              ),
+              _divider(cs),
+              _toggleRow(
+                cs,
+                icon: Symbols.campaign,
+                label: 'Уведомления от каналов',
+                value: _channelsEnabled,
+                onChanged: (v) => setState(() => _channelsEnabled = v),
+              ),
+            ]),
+            const SizedBox(height: 20),
+            _sectionHeader(cs, 'Звук'),
+            _card(cs, [
+              _tappableRow(
+                cs,
+                icon: Symbols.music_note,
+                label: 'Звук уведомления',
+                trailingText: _selectedSound,
+                onTap: _pickSound,
+              ),
+            ]),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _sectionHeader(ColorScheme cs, String title) {
+    return Padding(
+      padding: const EdgeInsets.fromLTRB(8, 0, 8, 8),
+      child: Text(
+        title,
+        style: TextStyle(
+          color: cs.primary,
+          fontSize: 14,
+          fontWeight: FontWeight.w600,
+          letterSpacing: 0.2,
+        ),
+      ),
+    );
+  }
+
+  Widget _card(ColorScheme cs, List<Widget> children) {
+    return Container(
+      decoration: BoxDecoration(
+        color: cs.surfaceContainerHigh,
+        borderRadius: BorderRadius.circular(20),
+      ),
+      child: Column(children: children),
+    );
+  }
+
+  Widget _divider(ColorScheme cs) {
+    return Padding(
+      padding: const EdgeInsets.only(left: 58),
+      child: Divider(
+        height: 1,
+        thickness: 1,
+        color: cs.outlineVariant.withValues(alpha: 0.35),
+      ),
+    );
+  }
+
+  Widget _toggleRow(
+    ColorScheme cs, {
+    required IconData icon,
+    required String label,
+    String? subtitle,
+    required bool value,
+    required ValueChanged<bool> onChanged,
+  }) {
+    return Material(
+      color: Colors.transparent,
+      child: InkWell(
+        onTap: () => onChanged(!value),
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 14),
+          child: Row(
+            children: [
+              Icon(icon, color: cs.onSurfaceVariant, size: 22, weight: 400),
+              const SizedBox(width: 16),
+              Expanded(
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      label,
+                      style: TextStyle(
+                        color: cs.onSurface,
+                        fontSize: 16,
+                        fontWeight: FontWeight.w500,
+                      ),
+                    ),
+                    if (subtitle != null) ...[
+                      const SizedBox(height: 2),
+                      Text(
+                        subtitle,
+                        style: TextStyle(
+                          color: cs.onSurfaceVariant,
+                          fontSize: 13,
+                          height: 1.3,
+                        ),
+                      ),
+                    ],
+                  ],
+                ),
+              ),
+              const SizedBox(width: 12),
+              Switch(value: value, onChanged: onChanged),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _tappableRow(
+    ColorScheme cs, {
+    required IconData icon,
+    required String label,
+    required String trailingText,
+    required VoidCallback onTap,
+  }) {
+    return Material(
+      color: Colors.transparent,
+      child: InkWell(
+        onTap: onTap,
+        borderRadius: BorderRadius.circular(20),
+        child: Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 17),
+          child: Row(
+            children: [
+              Icon(icon, color: cs.onSurfaceVariant, size: 22, weight: 400),
+              const SizedBox(width: 16),
+              Expanded(
+                child: Text(
+                  label,
+                  style: TextStyle(
+                    color: cs.onSurface,
+                    fontSize: 16,
+                    fontWeight: FontWeight.w500,
+                  ),
+                ),
+              ),
+              Text(
+                trailingText,
+                style: TextStyle(
+                  color: cs.onSurfaceVariant,
+                  fontSize: 14,
+                ),
+              ),
+              const SizedBox(width: 6),
+              Icon(Symbols.chevron_right, color: cs.outline, size: 20),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/frontend/screens/profile/password_entry_screen.dart

@@ -24,10 +24,16 @@ class _PasswordEntryScreenState extends State<PasswordEntryScreen> {
 
   Future<void> _check2faStatus() async {
     try {
-      final profile = await AppDatabase.loadActiveProfile();
+      bool is2faEnabled;
+      try {
+        is2faEnabled = (await accountModule.get2faStatus()).enabled;
+      } catch (_) {
+        final profile = await AppDatabase.loadActiveProfile();
+        is2faEnabled = profile?.profileOptions?.contains(2) ?? false;
+      }
       if (mounted) {
         setState(() {
-          _is2faEnabled = profile?.profileOptions?.contains(2) ?? false;
+          _is2faEnabled = is2faEnabled;
           _isLoading = false;
         });
       }
@@ -307,33 +313,40 @@ class TwoFactorSetupScreen extends StatefulWidget {
 
 class _TwoFactorSetupScreenState extends State<TwoFactorSetupScreen> {
   final _passwordController = TextEditingController();
+  final _confirmController = TextEditingController();
   final _hintController = TextEditingController();
   final _emailController = TextEditingController();
   final _codeController = TextEditingController();
 
   int _step = 0;
-  bool _isLoading = false;
+  final ValueNotifier<bool> _isLoading = ValueNotifier(false);
   String? _trackId;
   String? _errorMessage;
 
   @override
   void dispose() {
     _passwordController.dispose();
+    _confirmController.dispose();
     _hintController.dispose();
     _emailController.dispose();
     _codeController.dispose();
+    _isLoading.dispose();
     super.dispose();
   }
 
   Future<void> _nextStep() async {
-    setState(() {
-      _isLoading = true;
-      _errorMessage = null;
-    });
+    _isLoading.value = true;
+    setState(() => _errorMessage = null);
 
     try {
       switch (_step) {
         case 0:
+          if (_passwordController.text.length < 6) {
+            setState(
+              () => _errorMessage = 'Пароль должен быть минимум 6 символов',
+            );
+            break;
+          }
           final trackId = await accountModule.create2faTrack();
           setState(() {
             _trackId = trackId;
@@ -341,10 +354,8 @@ class _TwoFactorSetupScreenState extends State<TwoFactorSetupScreen> {
           });
           break;
         case 1:
-          if (_passwordController.text.length < 6) {
-            setState(
-              () => _errorMessage = 'Пароль должен быть минимум 6 символов',
-            );
+          if (_confirmController.text != _passwordController.text) {
+            setState(() => _errorMessage = 'Пароли не совпадают');
             break;
           }
           await accountModule.set2faPassword(
@@ -392,7 +403,7 @@ class _TwoFactorSetupScreenState extends State<TwoFactorSetupScreen> {
       setState(() => _errorMessage = e.toString());
     } finally {
       if (mounted) {
-        setState(() => _isLoading = false);
+        _isLoading.value = false;
       }
     }
   }
@@ -458,26 +469,29 @@ class _TwoFactorSetupScreenState extends State<TwoFactorSetupScreen> {
           const SizedBox(height: 24),
           SizedBox(
             width: double.infinity,
-            child: FilledButton(
-              onPressed: _isLoading ? null : _nextStep,
-              style: FilledButton.styleFrom(
-                backgroundColor: cs.primary,
-                foregroundColor: cs.onPrimary,
-                padding: const EdgeInsets.symmetric(vertical: 16),
-                shape: RoundedRectangleBorder(
-                  borderRadius: BorderRadius.circular(12),
+            child: ValueListenableBuilder<bool>(
+              valueListenable: _isLoading,
+              builder: (context, loading, _) => FilledButton(
+                onPressed: loading ? null : _nextStep,
+                style: FilledButton.styleFrom(
+                  backgroundColor: cs.primary,
+                  foregroundColor: cs.onPrimary,
+                  padding: const EdgeInsets.symmetric(vertical: 16),
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(12),
+                  ),
                 ),
+                child: loading
+                    ? SizedBox(
+                        width: 20,
+                        height: 20,
+                        child: CircularProgressIndicator(
+                          strokeWidth: 2,
+                          color: cs.onPrimary,
+                        ),
+                      )
+                    : Text(_step == 4 ? 'Установить пароль' : 'Продолжить'),
               ),
-              child: _isLoading
-                  ? SizedBox(
-                      width: 20,
-                      height: 20,
-                      child: CircularProgressIndicator(
-                        strokeWidth: 2,
-                        color: cs.onPrimary,
-                      ),
-                    )
-                  : Text(_step == 4 ? 'Установить пароль' : 'Продолжить'),
             ),
           ),
         ],
@@ -564,18 +578,9 @@ class _TwoFactorSetupScreenState extends State<TwoFactorSetupScreen> {
           style: TextStyle(color: cs.onSurfaceVariant, fontSize: 14),
         ),
         const SizedBox(height: 16),
-        TextField(
+        _PasswordField(
           controller: _passwordController,
-          obscureText: true,
-          decoration: InputDecoration(
-            hintText: 'Введите пароль',
-            filled: true,
-            fillColor: cs.surfaceContainerHighest,
-            border: OutlineInputBorder(
-              borderRadius: BorderRadius.circular(12),
-              borderSide: BorderSide.none,
-            ),
-          ),
+          hintText: 'Введите пароль',
         ),
       ],
     );
@@ -599,18 +604,9 @@ class _TwoFactorSetupScreenState extends State<TwoFactorSetupScreen> {
           style: TextStyle(color: cs.onSurfaceVariant, fontSize: 14),
         ),
         const SizedBox(height: 16),
-        TextField(
-          controller: _passwordController,
-          obscureText: true,
-          decoration: InputDecoration(
-            hintText: 'Повторите пароль',
-            filled: true,
-            fillColor: cs.surfaceContainerHighest,
-            border: OutlineInputBorder(
-              borderRadius: BorderRadius.circular(12),
-              borderSide: BorderSide.none,
-            ),
-          ),
+        _PasswordField(
+          controller: _confirmController,
+          hintText: 'Повторите пароль',
         ),
       ],
     );
@@ -732,7 +728,7 @@ class TwoFactorManageScreen extends StatefulWidget {
 
 class _TwoFactorManageScreenState extends State<TwoFactorManageScreen> {
   final _passwordController = TextEditingController();
-  bool _isLoading = false;
+  final ValueNotifier<bool> _isLoading = ValueNotifier(false);
   bool _isAuthenticated = false;
   String? _trackId;
   TwoFactorDetails? _details;
@@ -741,14 +737,13 @@ class _TwoFactorManageScreenState extends State<TwoFactorManageScreen> {
   @override
   void dispose() {
     _passwordController.dispose();
+    _isLoading.dispose();
     super.dispose();
   }
 
   Future<void> _authenticate() async {
-    setState(() {
-      _isLoading = true;
-      _errorMessage = null;
-    });
+    _isLoading.value = true;
+    setState(() => _errorMessage = null);
 
     try {
       _trackId = await accountModule.enter2faPanel();
@@ -761,7 +756,7 @@ class _TwoFactorManageScreenState extends State<TwoFactorManageScreen> {
     } catch (e) {
       setState(() => _errorMessage = 'Неверный пароль');
     } finally {
-      if (mounted) setState(() => _isLoading = false);
+      if (mounted) _isLoading.value = false;
     }
   }
 
@@ -818,42 +813,36 @@ class _TwoFactorManageScreenState extends State<TwoFactorManageScreen> {
                 style: TextStyle(color: cs.onErrorContainer),
               ),
             ),
-          TextField(
+          _PasswordField(
             controller: _passwordController,
-            obscureText: true,
-            decoration: InputDecoration(
-              hintText: 'Пароль',
-              filled: true,
-              fillColor: cs.surfaceContainerHighest,
-              border: OutlineInputBorder(
-                borderRadius: BorderRadius.circular(12),
-                borderSide: BorderSide.none,
-              ),
-            ),
+            hintText: 'Пароль',
           ),
           const SizedBox(height: 24),
           SizedBox(
             width: double.infinity,
-            child: FilledButton(
-              onPressed: _isLoading ? null : _authenticate,
-              style: FilledButton.styleFrom(
-                backgroundColor: cs.primary,
-                foregroundColor: cs.onPrimary,
-                padding: const EdgeInsets.symmetric(vertical: 16),
-                shape: RoundedRectangleBorder(
-                  borderRadius: BorderRadius.circular(12),
+            child: ValueListenableBuilder<bool>(
+              valueListenable: _isLoading,
+              builder: (context, loading, _) => FilledButton(
+                onPressed: loading ? null : _authenticate,
+                style: FilledButton.styleFrom(
+                  backgroundColor: cs.primary,
+                  foregroundColor: cs.onPrimary,
+                  padding: const EdgeInsets.symmetric(vertical: 16),
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(12),
+                  ),
                 ),
+                child: loading
+                    ? SizedBox(
+                        width: 20,
+                        height: 20,
+                        child: CircularProgressIndicator(
+                          strokeWidth: 2,
+                          color: cs.onPrimary,
+                        ),
+                      )
+                    : const Text('Продолжить'),
               ),
-              child: _isLoading
-                  ? SizedBox(
-                      width: 20,
-                      height: 20,
-                      child: CircularProgressIndicator(
-                        strokeWidth: 2,
-                        color: cs.onPrimary,
-                      ),
-                    )
-                  : const Text('Продолжить'),
             ),
           ),
         ],
@@ -944,13 +933,14 @@ class _TwoFactorPasswordChangeScreenState
     extends State<TwoFactorPasswordChangeScreen> {
   final _passwordController = TextEditingController();
   final _hintController = TextEditingController();
-  bool _isLoading = false;
+  final ValueNotifier<bool> _isLoading = ValueNotifier(false);
   String? _errorMessage;
 
   @override
   void dispose() {
     _passwordController.dispose();
     _hintController.dispose();
+    _isLoading.dispose();
     super.dispose();
   }
 
@@ -960,10 +950,8 @@ class _TwoFactorPasswordChangeScreenState
       return;
     }
 
-    setState(() {
-      _isLoading = true;
-      _errorMessage = null;
-    });
+    _isLoading.value = true;
+    setState(() => _errorMessage = null);
 
     try {
       final trackId = await accountModule.enter2faPanel();
@@ -983,7 +971,7 @@ class _TwoFactorPasswordChangeScreenState
     } catch (e) {
       setState(() => _errorMessage = e.toString());
     } finally {
-      if (mounted) setState(() => _isLoading = false);
+      if (mounted) _isLoading.value = false;
     }
   }
 
@@ -1035,18 +1023,9 @@ class _TwoFactorPasswordChangeScreenState
                   style: TextStyle(color: cs.onErrorContainer),
                 ),
               ),
-            TextField(
+            _PasswordField(
               controller: _passwordController,
-              obscureText: true,
-              decoration: InputDecoration(
-                hintText: 'Введите новый пароль',
-                filled: true,
-                fillColor: cs.surfaceContainerHighest,
-                border: OutlineInputBorder(
-                  borderRadius: BorderRadius.circular(12),
-                  borderSide: BorderSide.none,
-                ),
-              ),
+              hintText: 'Введите новый пароль',
             ),
             const SizedBox(height: 24),
             Text(
@@ -1073,26 +1052,29 @@ class _TwoFactorPasswordChangeScreenState
             const SizedBox(height: 24),
             SizedBox(
               width: double.infinity,
-              child: FilledButton(
-                onPressed: _isLoading ? null : _changePassword,
-                style: FilledButton.styleFrom(
-                  backgroundColor: cs.primary,
-                  foregroundColor: cs.onPrimary,
-                  padding: const EdgeInsets.symmetric(vertical: 16),
-                  shape: RoundedRectangleBorder(
-                    borderRadius: BorderRadius.circular(12),
+              child: ValueListenableBuilder<bool>(
+                valueListenable: _isLoading,
+                builder: (context, loading, _) => FilledButton(
+                  onPressed: loading ? null : _changePassword,
+                  style: FilledButton.styleFrom(
+                    backgroundColor: cs.primary,
+                    foregroundColor: cs.onPrimary,
+                    padding: const EdgeInsets.symmetric(vertical: 16),
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(12),
+                    ),
                   ),
+                  child: loading
+                      ? SizedBox(
+                          width: 20,
+                          height: 20,
+                          child: CircularProgressIndicator(
+                            strokeWidth: 2,
+                            color: cs.onPrimary,
+                          ),
+                        )
+                      : const Text('Сохранить'),
                 ),
-                child: _isLoading
-                    ? SizedBox(
-                        width: 20,
-                        height: 20,
-                        child: CircularProgressIndicator(
-                          strokeWidth: 2,
-                          color: cs.onPrimary,
-                        ),
-                      )
-                    : const Text('Сохранить'),
               ),
             ),
           ],
@@ -1116,7 +1098,7 @@ class _TwoFactorEmailChangeScreenState
   final _emailController = TextEditingController();
   final _codeController = TextEditingController();
   int _step = 0;
-  bool _isLoading = false;
+  final ValueNotifier<bool> _isLoading = ValueNotifier(false);
   String? _trackId;
   String? _errorMessage;
 
@@ -1125,14 +1107,13 @@ class _TwoFactorEmailChangeScreenState
     _passwordController.dispose();
     _emailController.dispose();
     _codeController.dispose();
+    _isLoading.dispose();
     super.dispose();
   }
 
   Future<void> _nextStep() async {
-    setState(() {
-      _isLoading = true;
-      _errorMessage = null;
-    });
+    _isLoading.value = true;
+    setState(() => _errorMessage = null);
 
     try {
       switch (_step) {
@@ -1176,7 +1157,7 @@ class _TwoFactorEmailChangeScreenState
     } catch (e) {
       setState(() => _errorMessage = e.toString());
     } finally {
-      if (mounted) setState(() => _isLoading = false);
+      if (mounted) _isLoading.value = false;
     }
   }
 
@@ -1216,18 +1197,9 @@ class _TwoFactorEmailChangeScreenState
                 ),
               ),
               const SizedBox(height: 16),
-              TextField(
+              _PasswordField(
                 controller: _passwordController,
-                obscureText: true,
-                decoration: InputDecoration(
-                  hintText: 'Пароль',
-                  filled: true,
-                  fillColor: cs.surfaceContainerHighest,
-                  border: OutlineInputBorder(
-                    borderRadius: BorderRadius.circular(12),
-                    borderSide: BorderSide.none,
-                  ),
-                ),
+                hintText: 'Пароль',
               ),
             ] else ...[
               if (_errorMessage != null)
@@ -1301,26 +1273,29 @@ class _TwoFactorEmailChangeScreenState
             const SizedBox(height: 24),
             SizedBox(
               width: double.infinity,
-              child: FilledButton(
-                onPressed: _isLoading ? null : _nextStep,
-                style: FilledButton.styleFrom(
-                  backgroundColor: cs.primary,
-                  foregroundColor: cs.onPrimary,
-                  padding: const EdgeInsets.symmetric(vertical: 16),
-                  shape: RoundedRectangleBorder(
-                    borderRadius: BorderRadius.circular(12),
+              child: ValueListenableBuilder<bool>(
+                valueListenable: _isLoading,
+                builder: (context, loading, _) => FilledButton(
+                  onPressed: loading ? null : _nextStep,
+                  style: FilledButton.styleFrom(
+                    backgroundColor: cs.primary,
+                    foregroundColor: cs.onPrimary,
+                    padding: const EdgeInsets.symmetric(vertical: 16),
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(12),
+                    ),
                   ),
+                  child: loading
+                      ? SizedBox(
+                          width: 20,
+                          height: 20,
+                          child: CircularProgressIndicator(
+                            strokeWidth: 2,
+                            color: cs.onPrimary,
+                          ),
+                        )
+                      : Text(_step == 2 ? 'Сохранить' : 'Продолжить'),
                 ),
-                child: _isLoading
-                    ? SizedBox(
-                        width: 20,
-                        height: 20,
-                        child: CircularProgressIndicator(
-                          strokeWidth: 2,
-                          color: cs.onPrimary,
-                        ),
-                      )
-                    : Text(_step == 2 ? 'Сохранить' : 'Продолжить'),
               ),
             ),
           ],
@@ -1339,20 +1314,19 @@ class TwoFactorRemoveScreen extends StatefulWidget {
 
 class _TwoFactorRemoveScreenState extends State<TwoFactorRemoveScreen> {
   final _passwordController = TextEditingController();
-  bool _isLoading = false;
+  final ValueNotifier<bool> _isLoading = ValueNotifier(false);
   String? _errorMessage;
 
   @override
   void dispose() {
     _passwordController.dispose();
+    _isLoading.dispose();
     super.dispose();
   }
 
   Future<void> _remove2fa() async {
-    setState(() {
-      _isLoading = true;
-      _errorMessage = null;
-    });
+    _isLoading.value = true;
+    setState(() => _errorMessage = null);
 
     try {
       final trackId = await accountModule.enter2faPanel();
@@ -1368,7 +1342,7 @@ class _TwoFactorRemoveScreenState extends State<TwoFactorRemoveScreen> {
     } catch (e) {
       setState(() => _errorMessage = e.toString());
     } finally {
-      if (mounted) setState(() => _isLoading = false);
+      if (mounted) _isLoading.value = false;
     }
   }
 
@@ -1440,42 +1414,36 @@ class _TwoFactorRemoveScreenState extends State<TwoFactorRemoveScreen> {
                   style: TextStyle(color: cs.onErrorContainer),
                 ),
               ),
-            TextField(
+            _PasswordField(
               controller: _passwordController,
-              obscureText: true,
-              decoration: InputDecoration(
-                hintText: 'Пароль',
-                filled: true,
-                fillColor: cs.surfaceContainerHighest,
-                border: OutlineInputBorder(
-                  borderRadius: BorderRadius.circular(12),
-                  borderSide: BorderSide.none,
-                ),
-              ),
+              hintText: 'Пароль',
             ),
             const SizedBox(height: 24),
             SizedBox(
               width: double.infinity,
-              child: FilledButton(
-                onPressed: _isLoading ? null : _remove2fa,
-                style: FilledButton.styleFrom(
-                  backgroundColor: cs.error,
-                  foregroundColor: cs.onError,
-                  padding: const EdgeInsets.symmetric(vertical: 16),
-                  shape: RoundedRectangleBorder(
-                    borderRadius: BorderRadius.circular(12),
+              child: ValueListenableBuilder<bool>(
+                valueListenable: _isLoading,
+                builder: (context, loading, _) => FilledButton(
+                  onPressed: loading ? null : _remove2fa,
+                  style: FilledButton.styleFrom(
+                    backgroundColor: cs.error,
+                    foregroundColor: cs.onError,
+                    padding: const EdgeInsets.symmetric(vertical: 16),
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(12),
+                    ),
                   ),
+                  child: loading
+                      ? SizedBox(
+                          width: 20,
+                          height: 20,
+                          child: CircularProgressIndicator(
+                            strokeWidth: 2,
+                            color: cs.onError,
+                          ),
+                        )
+                      : const Text('Удалить пароль'),
                 ),
-                child: _isLoading
-                    ? SizedBox(
-                        width: 20,
-                        height: 20,
-                        child: CircularProgressIndicator(
-                          strokeWidth: 2,
-                          color: cs.onError,
-                        ),
-                      )
-                    : const Text('Удалить пароль'),
               ),
             ),
           ],
@@ -1484,3 +1452,45 @@ class _TwoFactorRemoveScreenState extends State<TwoFactorRemoveScreen> {
     );
   }
 }
+
+class _PasswordField extends StatefulWidget {
+  final TextEditingController controller;
+  final String hintText;
+
+  const _PasswordField({
+    required this.controller,
+    required this.hintText,
+  });
+
+  @override
+  State<_PasswordField> createState() => _PasswordFieldState();
+}
+
+class _PasswordFieldState extends State<_PasswordField> {
+  bool _visible = false;
+
+  @override
+  Widget build(BuildContext context) {
+    final cs = Theme.of(context).colorScheme;
+    return TextField(
+      controller: widget.controller,
+      obscureText: !_visible,
+      decoration: InputDecoration(
+        hintText: widget.hintText,
+        filled: true,
+        fillColor: cs.surfaceContainerHighest,
+        border: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(12),
+          borderSide: BorderSide.none,
+        ),
+        suffixIcon: IconButton(
+          icon: Icon(
+            _visible ? Symbols.visibility_off : Symbols.visibility,
+            color: cs.onSurfaceVariant,
+          ),
+          onPressed: () => setState(() => _visible = !_visible),
+        ),
+      ),
+    );
+  }
+}

lib/frontend/screens/profile/security_screen.dart

@@ -47,12 +47,18 @@ class _SecurityScreenState extends State<SecurityScreen>
         accountModule.getBlockedContacts(),
         AppDatabase.loadActiveProfile(),
       ]);
+      bool is2faEnabled;
+      try {
+        is2faEnabled = (await accountModule.get2faStatus()).enabled;
+      } catch (_) {
+        final profile = results[2] as ProfileData?;
+        is2faEnabled = profile?.profileOptions?.contains(2) ?? false;
+      }
       if (mounted) {
         setState(() {
           _privacyConfig = results[0] as PrivacyConfig;
           _blockedContacts = results[1] as List<BlockedContact>;
-          final profile = results[2] as ProfileData?;
-          _is2faEnabled = profile?.profileOptions?.contains(2) ?? false;
+          _is2faEnabled = is2faEnabled;
           _isLoading = false;
         });
       }

lib/frontend/screens/profile/settings_tab.dart

@@ -4,6 +4,7 @@ import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import 'package:package_info_plus/package_info_plus.dart';
+import '../../../backend/modules/chats.dart';
 import '../../../backend/modules/messages.dart';
 import '../../../core/storage/app_database.dart';
 import '../../../core/storage/token_storage.dart';
@@ -20,6 +21,7 @@ import 'debug_menu_screen.dart';
 import 'devices_screen.dart';
 import 'edit_profile_screen.dart';
 import 'info_screen.dart';
+import 'notifications_screen.dart';
 import 'security_screen.dart';
 import 'spoof_screen.dart';
 
@@ -206,6 +208,7 @@ class _SettingsTabState extends State<SettingsTab> {
     }
     ContactCache.clear();
     TranscriptionCache.clear();
+    ChatsModule.resetForAccountSwitch();
     try {
       await api.connect();
     } catch (_) {}
@@ -309,9 +312,17 @@ child: _buildSection(
                   context,
                   cs,
                   items: [
-                    const _SettingsItem(
+                    _SettingsItem(
                       icon: Symbols.notifications_active,
-                      label: 'Уведомления и звук',
+                      label: 'Уведомления',
+                      onTap: () {
+                        Navigator.push(
+                          context,
+                          MaterialPageRoute(
+                            builder: (context) => const NotificationsScreen(),
+                          ),
+                        );
+                      },
                     ),
                     _SettingsItem(
                       icon: Symbols.vibration,

lib/frontend/widgets/login_success_screen.dart

@@ -22,8 +22,9 @@ Future<ImageProvider?> precacheLoginAvatar(
 
 class LoginSuccessScreen extends StatefulWidget {
   final ImageProvider? avatar;
+  final bool preview;
 
-  const LoginSuccessScreen({super.key, this.avatar});
+  const LoginSuccessScreen({super.key, this.avatar, this.preview = false});
 
   @override
   State<LoginSuccessScreen> createState() => _LoginSuccessScreenState();
@@ -114,6 +115,10 @@ class _LoginSuccessScreenState extends State<LoginSuccessScreen>
   void _onStatus(AnimationStatus status) {
     if (status == AnimationStatus.completed && !_navigated && mounted) {
       _navigated = true;
+      if (widget.preview) {
+        Navigator.of(context).pop();
+        return;
+      }
       Navigator.of(context).pushAndRemoveUntil(
         PageRouteBuilder(
           transitionDuration: const Duration(milliseconds: 360),

lib/frontend/widgets/message_bubble.dart

@@ -1,4 +1,5 @@
 import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:komet/main.dart';
 import 'package:material_symbols_icons/symbols.dart';
@@ -7,7 +8,14 @@ import '../../core/config/app_bubble_behavior.dart';
 import '../../core/config/app_bubble_shape.dart';
 import '../../core/utils/bubble_radius.dart';
 import '../../core/utils/haptics.dart';
+import '../../core/utils/file_download.dart';
+import '../../core/utils/media_cache.dart';
+import '../../core/utils/download_progress.dart';
+import 'custom_notification.dart';
 import '../../models/attachment.dart';
+import 'poll_view.dart';
+import 'photo_viewer.dart';
+import 'video_player_screen.dart';
 
 enum MessageType { text, attachment, voice, control }
 
@@ -22,6 +30,7 @@ class _BubbleCtx {
   final MessageType contentType;
   final bool hasPhotoWithCaption;
   final bool hasMultiplePhotosNoCaption;
+  final Map? reactionInfo;
 
   _BubbleCtx({
     required this.context,
@@ -31,6 +40,7 @@ class _BubbleCtx {
     required this.contentType,
     required this.hasPhotoWithCaption,
     required this.hasMultiplePhotosNoCaption,
+    this.reactionInfo,
   }) : dim = text.withValues(alpha: 0.7);
 }
 
@@ -47,6 +57,10 @@ class MessageBubble extends StatelessWidget {
   static const Radius _smallRadius = Radius.circular(4);
   static const Radius _photoRadius = Radius.circular(photoBorderRadius);
 
+  static final Color _reactionChipBg = Colors.black.withValues(alpha: 0.18);
+  static const BorderRadius _reactionChipRadius =
+      BorderRadius.all(Radius.circular(10));
+
   static Color bubbleTextColor(BuildContext context) =>
       Theme.of(context).brightness == Brightness.dark
           ? Colors.white
@@ -59,6 +73,7 @@ class MessageBubble extends StatelessWidget {
   final CachedMessage? nextMessage;
   final String chatType;
   final String? overrideStatus;
+  final ValueListenable<Map<String, dynamic>?>? reactionsListenable;
 
   const MessageBubble({
     super.key,
@@ -69,6 +84,7 @@ class MessageBubble extends StatelessWidget {
     this.nextMessage,
     required this.chatType,
     this.overrideStatus,
+    this.reactionsListenable,
   });
 
   bool _computeHasPhotoWithCaption() {
@@ -259,16 +275,6 @@ class MessageBubble extends StatelessWidget {
     final hasMultiPhotos = _computeHasMultiplePhotosNoCaption();
     final textColor = bubbleTextColor(context);
 
-    final ctx = _BubbleCtx(
-      context: context,
-      cs: cs,
-      text: textColor,
-      shape: shape,
-      contentType: contentType,
-      hasPhotoWithCaption: hasPhotoCap,
-      hasMultiplePhotosNoCaption: hasMultiPhotos,
-    );
-
     final topMargin = _topMarginFor(contentType, shape);
     final bottomMargin = _bottomMarginFor(contentType, shape);
     final padding = _paddingFor(contentType, shape);
@@ -276,8 +282,34 @@ class MessageBubble extends StatelessWidget {
     final showAvatarSlot = !isMe;
     final showAvatar = showAvatarSlot &&
         chatType == "CHAT" &&
-        nextMessage?.senderId != message.senderId &&
-        prevMessage?.senderId == message.senderId;
+        nextMessage?.senderId != message.senderId;
+
+    final maxBubbleWidth = MediaQuery.sizeOf(context).width * 0.75;
+    final bubbleColor =
+        isMe ? cs.primaryContainer : cs.surfaceContainerHighest;
+
+    _BubbleCtx makeCtx() => _BubbleCtx(
+          context: context,
+          cs: cs,
+          text: textColor,
+          shape: shape,
+          contentType: contentType,
+          hasPhotoWithCaption: hasPhotoCap,
+          hasMultiplePhotosNoCaption: hasMultiPhotos,
+          reactionInfo: _resolveReactionInfo(),
+        );
+
+    final Widget bubbleContent =
+        reactionsListenable != null && contentType == MessageType.text
+            ? ValueListenableBuilder<Map<String, dynamic>?>(
+                valueListenable: reactionsListenable!,
+                builder: (context, _, _) => _buildContent(makeCtx()),
+              )
+            : _buildContent(makeCtx());
+
+    final reactionsUnder = _reactionsUnderBubble(contentType);
+    final reactionsInside =
+        contentType != MessageType.text && !reactionsUnder;
 
     return GestureDetector(
       onTap: Haptics.tap,
@@ -304,32 +336,40 @@ class MessageBubble extends StatelessWidget {
                   radius: 15,
                   backgroundColor: Color(0x00000000),
                 ),
-              ListenableBuilder(
-                listenable: Listenable.merge(
-                  [AppBubbleShape.current, AppBubbleBehavior.current],
-                ),
-                builder: (context, child) {
-                  return Container(
-                    constraints: BoxConstraints(
-                      maxWidth: MediaQuery.sizeOf(context).width * 0.75,
-                    ),
-                    decoration: BoxDecoration(
-                      color: isMe
-                          ? cs.primaryContainer
-                          : cs.surfaceContainerHighest,
-                      borderRadius: _borderRadiusFor(
-                        AppBubbleShape.current.value,
-                        AppBubbleBehavior.current.value,
-                        shape,
-                        hasPhotoCap,
-                        hasMultiPhotos,
+              Column(
+                crossAxisAlignment:
+                    isMe ? CrossAxisAlignment.end : CrossAxisAlignment.start,
+                children: [
+                  ListenableBuilder(
+                    listenable: Listenable.merge([
+                      AppBubbleShape.current,
+                      AppBubbleBehavior.current,
+                    ]),
+                    builder: (context, child) => Container(
+                      constraints: BoxConstraints(maxWidth: maxBubbleWidth),
+                      decoration: BoxDecoration(
+                        color: bubbleColor,
+                        borderRadius: _borderRadiusFor(
+                          AppBubbleShape.current.value,
+                          AppBubbleBehavior.current.value,
+                          shape,
+                          hasPhotoCap,
+                          hasMultiPhotos,
+                        ),
                       ),
+                      padding: padding,
+                      child: child,
                     ),
-                    padding: padding,
-                    child: child,
-                  );
-                },
-                child: _buildContent(ctx),
+                    child: reactionsInside
+                        ? Column(
+                            mainAxisSize: MainAxisSize.min,
+                            crossAxisAlignment: CrossAxisAlignment.start,
+                            children: [bubbleContent, _reactionsBar(cs)],
+                          )
+                        : bubbleContent,
+                  ),
+                  if (reactionsUnder) _reactionsBar(cs),
+                ],
               ),
             ],
           ),
@@ -338,6 +378,37 @@ class MessageBubble extends StatelessWidget {
     );
   }
 
+  Map? _resolveReactionInfo() {
+    if (reactionsListenable != null) {
+      final v = reactionsListenable!.value;
+      if (v != null) return v;
+    }
+    final info = message.payload?['reactionInfo'];
+    if (info is Map) return info;
+    return null;
+  }
+
+  bool _reactionsUnderBubble(MessageType contentType) {
+    if (contentType != MessageType.attachment) return false;
+    final attachments = message.attachments;
+    if (attachments == null || attachments.isEmpty) return false;
+    if (attachments.first is ForwardedMessageAttachment) return false;
+    if (attachments.any((a) => a is ContactAttachment)) return false;
+    if (attachments.whereType<PhotoAttachment>().length >= 2) return false;
+    return true;
+  }
+
+  Widget _reactionsBar(ColorScheme cs) {
+    final listenable = reactionsListenable;
+    if (listenable != null) {
+      return ValueListenableBuilder<Map<String, dynamic>?>(
+        valueListenable: listenable,
+        builder: (context, info, _) => _buildReactionsBarFor(cs, info),
+      );
+    }
+    return _buildReactionsBar(cs);
+  }
+
   Widget _buildContent(_BubbleCtx ctx) {
     switch (ctx.contentType) {
       case MessageType.control:
@@ -351,6 +422,65 @@ class MessageBubble extends StatelessWidget {
     }
   }
 
+  Widget _buildReactionsBar(ColorScheme cs) {
+    final info = message.payload?['reactionInfo'];
+    return _buildReactionsBarFor(cs, info is Map ? info : null);
+  }
+
+  Widget _buildReactionsBarFor(ColorScheme cs, Map? info) {
+    final chips = _buildReactionChipsFor(cs, info);
+    if (chips.isEmpty) return const SizedBox.shrink();
+    return Padding(
+      padding: const EdgeInsets.only(top: 4),
+      child: Wrap(spacing: 4, runSpacing: 4, children: chips),
+    );
+  }
+
+  List<Widget> _buildReactionChipsFor(ColorScheme cs, Map? info) {
+    if (info == null) return const [];
+    final counters = info['counters'];
+    if (counters is! List || counters.isEmpty) return const [];
+    final yourReaction = info['yourReaction']?.toString();
+
+    final chips = <Widget>[];
+    for (final c in counters) {
+      if (c is! Map) continue;
+      final reaction = c['reaction']?.toString();
+      final count = c['count'];
+      if (reaction == null || reaction.isEmpty) continue;
+      final isYours = yourReaction == reaction;
+      chips.add(
+        Container(
+          padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
+          decoration: BoxDecoration(
+            color: isYours
+                ? cs.primary.withValues(alpha: 0.22)
+                : _reactionChipBg,
+            borderRadius: _reactionChipRadius,
+          ),
+          child: Row(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Text(reaction, style: const TextStyle(fontSize: 13)),
+              if (count is int && count > 1) ...[
+                const SizedBox(width: 3),
+                Text(
+                  count.toString(),
+                  style: TextStyle(
+                    color: isYours ? cs.primary : cs.onSurfaceVariant,
+                    fontSize: 11,
+                    fontWeight: FontWeight.w600,
+                  ),
+                ),
+              ],
+            ],
+          ),
+        ),
+      );
+    }
+    return chips;
+  }
+
   Widget _buildControlContent(ColorScheme cs) {
     final attachments = message.attachments;
     if (attachments == null || attachments.isEmpty) {
@@ -421,49 +551,95 @@ class MessageBubble extends StatelessWidget {
 
     final displaySender = ContactCache.get(message.senderId);
 
+    final reactionChips = _buildReactionChipsFor(ctx.cs, ctx.reactionInfo);
+    final hasReactions = reactionChips.isNotEmpty;
+
+    final textWidget = isForwarded
+        ? _buildForwardedInlineText(ctx, forwarded)
+        : Text(
+            message.text ?? '',
+            style: TextStyle(
+              color: ctx.text,
+              fontSize: 16,
+              height: 1.3,
+            ),
+          );
+
+    final metaWidget = Text(
+      message.status == 'EDITED'
+          ? '${_formatTime(message.time)} ред.'
+          : _formatTime(message.time),
+      style: TextStyle(color: ctx.dim, fontSize: 10),
+    );
+
+    final showSender = message.senderId != message.accountId &&
+        prevMessage?.senderId != message.senderId &&
+        chatType == "CHAT";
+
+    if (hasReactions) {
+      return IntrinsicWidth(
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            if (showSender)
+              Text(
+                displaySender ?? "",
+                textAlign: TextAlign.left,
+                style: TextStyle(color: ctx.text),
+              ),
+            textWidget,
+            const SizedBox(height: 6),
+            Row(
+              crossAxisAlignment: CrossAxisAlignment.end,
+              children: [
+                Expanded(
+                  child: Wrap(
+                    spacing: 4,
+                    runSpacing: 4,
+                    children: reactionChips,
+                  ),
+                ),
+                const SizedBox(width: 8),
+                Padding(
+                  padding: const EdgeInsets.only(bottom: 2),
+                  child: metaWidget,
+                ),
+                if (isMe) ...[
+                  const SizedBox(width: 4),
+                  _buildStatusIcon(ctx),
+                ],
+              ],
+            ),
+          ],
+        ),
+      );
+    }
+
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
-        if (message.senderId != message.accountId &&
-            prevMessage?.senderId != message.senderId &&
-            chatType == "CHAT")
+        if (showSender)
           Text(
             displaySender ?? "",
             textAlign: TextAlign.left,
             style: TextStyle(color: ctx.text),
           ),
         Row(
-          mainAxisSize: MainAxisSize.min,
-          crossAxisAlignment: CrossAxisAlignment.end,
-          children: [
-            Flexible(
-              child: isForwarded
-                  ? _buildForwardedInlineText(ctx, forwarded)
-                  : Text(
-                      message.text ?? '',
-                      style: TextStyle(
-                        color: ctx.text,
-                        fontSize: 16,
-                        height: 1.3,
-                      ),
-                    ),
-            ),
-            const SizedBox(width: 8),
-            Padding(
-              padding: const EdgeInsets.only(bottom: 2),
-              child: Text(
-                message.status == 'EDITED'
-                    ? '${_formatTime(message.time)} ред.'
-                    : _formatTime(message.time),
-                style: TextStyle(color: ctx.dim, fontSize: 10),
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.end,
+            children: [
+              Flexible(child: textWidget),
+              const SizedBox(width: 8),
+              Padding(
+                padding: const EdgeInsets.only(bottom: 2),
+                child: metaWidget,
               ),
-            ),
-            if (isMe) ...[
-              const SizedBox(width: 4),
-              _buildStatusIcon(ctx),
+              if (isMe) ...[
+                const SizedBox(width: 4),
+                _buildStatusIcon(ctx),
+              ],
             ],
-          ],
-        ),
+          ),
       ],
     );
   }
@@ -576,6 +752,11 @@ class MessageBubble extends StatelessWidget {
       return _buildContactAttachment(ctx, contacts.first);
     }
 
+    final polls = attachments.whereType<PollAttachment>().toList();
+    if (polls.isNotEmpty) {
+      return _buildPollAttachment(ctx, polls.first);
+    }
+
     final photos = attachments.whereType<PhotoAttachment>().toList();
     if (photos.isEmpty) {
       return _buildGenericAttachment(ctx, attachments.first);
@@ -584,6 +765,21 @@ class MessageBubble extends StatelessWidget {
     return _buildPhotoContent(ctx, photos);
   }
 
+  Widget _buildPollAttachment(_BubbleCtx ctx, PollAttachment poll) {
+    return Padding(
+      padding: const EdgeInsets.fromLTRB(12, 8, 12, 8),
+      child: PollView(
+        chatId: message.chatId,
+        messageId: message.id,
+        pollId: poll.pollId,
+        fallbackTitle: poll.title ?? message.text,
+        textColor: ctx.text,
+        dimColor: ctx.dim,
+        accentColor: ctx.text,
+      ),
+    );
+  }
+
   Widget _buildPhotoContent(_BubbleCtx ctx, List<PhotoAttachment> photos) {
     final hasCaption = message.text != null && message.text!.isNotEmpty;
     final count = photos.length;
@@ -805,6 +1001,7 @@ class MessageBubble extends StatelessWidget {
 
     final constrainedWidth = width.clamp(photoMinSize, photoMaxSize);
     final constrainedHeight = height.clamp(photoMinSize, photoMaxSize);
+    final dpr = MediaQuery.of(ctx.context).devicePixelRatio;
 
     final matchTop = ctx.hasPhotoWithCaption;
     final matchBottom = !ctx.hasPhotoWithCaption;
@@ -830,8 +1027,8 @@ class MessageBubble extends StatelessWidget {
               width: constrainedWidth,
               height: constrainedHeight,
               fit: BoxFit.cover,
-              memCacheWidth: (constrainedWidth * 2).round(),
-              memCacheHeight: (constrainedHeight * 2).round(),
+              memCacheWidth: (constrainedWidth * dpr).round(),
+              memCacheHeight: (constrainedHeight * dpr).round(),
               fadeInDuration: const Duration(milliseconds: 120),
               errorWidget: (_, _, _) => _buildPhotoPlaceholder(
                 ctx.cs,
@@ -926,6 +1123,8 @@ class MessageBubble extends StatelessWidget {
 
   Widget _buildPhotoTile(_BubbleCtx ctx, PhotoAttachment photo) {
     final imageUrl = photo.baseUrl ?? '';
+    final cachePx =
+        (photoMaxSize * MediaQuery.of(ctx.context).devicePixelRatio).round();
     return AspectRatio(
       aspectRatio: 1,
       child: Stack(
@@ -936,8 +1135,8 @@ class MessageBubble extends StatelessWidget {
               fit: BoxFit.cover,
               width: double.infinity,
               height: double.infinity,
-              memCacheWidth: 280,
-              memCacheHeight: 280,
+              memCacheWidth: cachePx,
+              memCacheHeight: cachePx,
               fadeInDuration: const Duration(milliseconds: 120),
               errorWidget: (_, _, _) =>
                   _buildPhotoPlaceholder(ctx.cs, 100, 100),
@@ -961,6 +1160,8 @@ class MessageBubble extends StatelessWidget {
     String overlay,
   ) {
     final imageUrl = photo.baseUrl ?? '';
+    final cachePx =
+        (photoMaxSize * MediaQuery.of(ctx.context).devicePixelRatio).round();
     return AspectRatio(
       aspectRatio: 1,
       child: Stack(
@@ -971,8 +1172,8 @@ class MessageBubble extends StatelessWidget {
               fit: BoxFit.cover,
               width: double.infinity,
               height: double.infinity,
-              memCacheWidth: 280,
-              memCacheHeight: 280,
+              memCacheWidth: cachePx,
+              memCacheHeight: cachePx,
               fadeInDuration: const Duration(milliseconds: 120),
               errorWidget: (_, _, _) =>
                   _buildPhotoPlaceholder(ctx.cs, 100, 100),
@@ -1061,10 +1262,22 @@ class MessageBubble extends StatelessWidget {
                   color: ctx.cs.onSurfaceVariant,
                 ),
               ),
+              Center(
+                child: Container(
+                  width: 48,
+                  height: 48,
+                  decoration: const BoxDecoration(
+                    color: Colors.black54,
+                    shape: BoxShape.circle,
+                  ),
+                  child: const Icon(Symbols.play_arrow,
+                      color: Colors.white, size: 30),
+                ),
+              ),
               Positioned.fill(
                 child: GestureDetector(
                   behavior: HitTestBehavior.opaque,
-                  onTap: () {},
+                  onTap: () => _playVideo(ctx.context, video),
                 ),
               ),
             ],
@@ -1076,10 +1289,55 @@ class MessageBubble extends StatelessWidget {
     );
   }
 
+  Future<void> _playVideo(
+    BuildContext context,
+    MessageAttachment video,
+  ) async {
+    final videoId = (video as dynamic).videoId as int?;
+    final token = (video as dynamic).videoToken as String?;
+    if (videoId == null) {
+      showCustomNotification(context, 'Не удалось открыть видео');
+      return;
+    }
+    Haptics.tap();
+
+    final cacheName = 'video_$videoId.mp4';
+    final cached = await MediaCache.existing(cacheName) != null;
+    if (!context.mounted) return;
+
+    String? url;
+    if (!cached) {
+      if (token == null) {
+        showCustomNotification(context, 'Не удалось открыть видео');
+        return;
+      }
+      url = await messagesModule.getVideoUrl(
+        messageId: message.id,
+        chatId: message.chatId,
+        token: token,
+        videoId: videoId,
+      );
+      if (!context.mounted) return;
+      if (url == null) {
+        showCustomNotification(context, 'Не удалось получить видео');
+        return;
+      }
+    }
+
+    Navigator.of(context).push(
+      MaterialPageRoute(
+        fullscreenDialog: true,
+        builder: (_) => VideoPlayerScreen(cacheName: cacheName, url: url),
+      ),
+    );
+  }
+
   Widget _buildFileAttachment(_BubbleCtx ctx, MessageAttachment file) {
     final name = (file as dynamic).name as String? ?? 'File';
     final size = (file as dynamic).size as int? ?? 0;
     final sizeStr = _formatFileSize(size);
+    final fileId = (file as dynamic).fileId as int?;
+    final cacheName = '${fileId}_$name';
 
     return IntrinsicWidth(
       child: Padding(
@@ -1125,35 +1383,61 @@ class MessageBubble extends StatelessWidget {
                       overflow: TextOverflow.ellipsis,
                     ),
                     const SizedBox(height: 2),
-                    Text(
-                      sizeStr,
-                      style: TextStyle(
-                        color: ctx.dim,
-                        fontSize: 12,
-                        height: 1.2,
+                    ValueListenableBuilder<double?>(
+                      valueListenable: MediaDownloadProgress.notifier(cacheName),
+                      builder: (context, progress, _) => Text(
+                        progress != null
+                            ? '${(progress * 100).round()}% · $sizeStr'
+                            : sizeStr,
+                        style: TextStyle(
+                          color: ctx.dim,
+                          fontSize: 12,
+                          height: 1.2,
+                        ),
                       ),
                     ),
                   ],
                 ),
               ),
               const SizedBox(width: 12),
-              GestureDetector(
-                onTap: () {},
-                child: Container(
-                  width: 34,
-                  height: 34,
-                  decoration: BoxDecoration(
-                    color: isMe
-                        ? ctx.cs.onPrimaryContainer.withValues(alpha: 0.12)
-                        : ctx.cs.surfaceContainerHighest,
-                    shape: BoxShape.circle,
-                  ),
-                  child: Icon(
-                    Symbols.download,
-                    color: isMe ? ctx.cs.onPrimaryContainer : ctx.cs.primary,
-                    size: 18,
-                  ),
-                ),
+              ValueListenableBuilder<double?>(
+                valueListenable: MediaDownloadProgress.notifier(cacheName),
+                builder: (context, progress, _) {
+                  final downloading = progress != null;
+                  return GestureDetector(
+                    onTap: downloading
+                        ? null
+                        : () => _downloadFile(ctx.context, file, name),
+                    child: Container(
+                      width: 34,
+                      height: 34,
+                      decoration: BoxDecoration(
+                        color: isMe
+                            ? ctx.cs.onPrimaryContainer.withValues(alpha: 0.12)
+                            : ctx.cs.surfaceContainerHighest,
+                        shape: BoxShape.circle,
+                      ),
+                      child: downloading
+                          ? Padding(
+                              padding: const EdgeInsets.all(8),
+                              child: CircularProgressIndicator(
+                                strokeWidth: 2,
+                                value: progress > 0 ? progress : null,
+                                color: isMe
+                                    ? ctx.cs.onPrimaryContainer
+                                    : ctx.cs.primary,
+                              ),
+                            )
+                          : Icon(
+                              Symbols.download,
+                              color: isMe
+                                  ? ctx.cs.onPrimaryContainer
+                                  : ctx.cs.primary,
+                              size: 18,
+                            ),
+                    ),
+                  );
+                },
               ),
             ],
           ),
@@ -1436,7 +1720,48 @@ class MessageBubble extends StatelessWidget {
   }
 
   void _openPhotoViewer(BuildContext ctx, PhotoAttachment photo) {
-    // TODO: Open photo viewer
+    final url = photo.baseUrl ?? '';
+    if (url.isEmpty) return;
+    Navigator.of(ctx).push(
+      MaterialPageRoute(
+        fullscreenDialog: true,
+        builder: (_) => PhotoViewerScreen(baseUrl: url),
+      ),
+    );
+  }
+
+  Future<void> _downloadFile(
+    BuildContext context,
+    MessageAttachment file,
+    String name,
+  ) async {
+    final fileId = (file as dynamic).fileId as int?;
+    if (fileId == null) {
+      showCustomNotification(context, 'Не удалось определить файл');
+      return;
+    }
+    Haptics.tap();
+
+    final cacheName = '${fileId}_$name';
+
+    MediaDownloadProgress.set(cacheName, 0);
+    final result = await openCachedFile(
+      cacheName,
+      () => messagesModule.getFileUrl(
+        messageId: message.id,
+        chatId: message.chatId,
+        fileId: fileId,
+      ),
+      onProgress: (p) => MediaDownloadProgress.set(cacheName, p),
+    );
+    MediaDownloadProgress.set(cacheName, null);
+    if (!context.mounted) return;
+    if (!result.ok) {
+      showCustomNotification(
+        context,
+        'Ошибка загрузки: ${result.error ?? 'не удалось открыть'}',
+      );
+    }
   }
 
   Widget _buildVoiceContent(_BubbleCtx ctx) {
@@ -1599,7 +1924,7 @@ class _VoiceMessageBubble extends StatefulWidget {
 
 class _VoiceMessageBubbleState extends State<_VoiceMessageBubble> {
   bool _isPlaying = false;
-  double _progress = 0.0;
+  final ValueNotifier<double> _progress = ValueNotifier(0.0);
   bool _transcriptionVisible = false;
   String? _transcriptionText;
   bool _transcriptionLoading = false;
@@ -1607,10 +1932,13 @@ class _VoiceMessageBubbleState extends State<_VoiceMessageBubble> {
   @override
   void initState() {
     super.initState();
-    if (widget.preloadedText != null) {
-      _transcriptionText = widget.preloadedText;
-      _transcriptionVisible = true;
-    }
+    _transcriptionText = widget.preloadedText;
+  }
+
+  @override
+  void dispose() {
+    _progress.dispose();
+    super.dispose();
   }
 
   String _formatDuration(int seconds) {
@@ -1705,18 +2033,14 @@ class _VoiceMessageBubbleState extends State<_VoiceMessageBubble> {
                   builder: (context, constraints) {
                     return GestureDetector(
                       onTapDown: (details) {
-                        setState(() {
-                          _progress = (details.localPosition.dx /
-                                  constraints.maxWidth)
-                              .clamp(0.0, 1.0);
-                        });
+                        _progress.value =
+                            (details.localPosition.dx / constraints.maxWidth)
+                                .clamp(0.0, 1.0);
                       },
                       onHorizontalDragUpdate: (details) {
-                        setState(() {
-                          _progress = (details.localPosition.dx /
-                                  constraints.maxWidth)
-                              .clamp(0.0, 1.0);
-                        });
+                        _progress.value =
+                            (details.localPosition.dx / constraints.maxWidth)
+                                .clamp(0.0, 1.0);
                       },
                       child: Container(
                         height: 4,
@@ -1724,13 +2048,16 @@ class _VoiceMessageBubbleState extends State<_VoiceMessageBubble> {
                           color: waveInactiveColor,
                           borderRadius: BorderRadius.circular(2),
                         ),
-                        child: FractionallySizedBox(
-                          alignment: Alignment.centerLeft,
-                          widthFactor: _progress.clamp(0.0, 1.0),
-                          child: Container(
-                            decoration: BoxDecoration(
-                              color: waveActiveColor,
-                              borderRadius: BorderRadius.circular(2),
+                        child: ValueListenableBuilder<double>(
+                          valueListenable: _progress,
+                          builder: (context, progress, _) => FractionallySizedBox(
+                            alignment: Alignment.centerLeft,
+                            widthFactor: progress.clamp(0.0, 1.0),
+                            child: Container(
+                              decoration: BoxDecoration(
+                                color: waveActiveColor,
+                                borderRadius: BorderRadius.circular(2),
+                              ),
                             ),
                           ),
                         ),
@@ -1772,14 +2099,19 @@ class _VoiceMessageBubbleState extends State<_VoiceMessageBubble> {
           Row(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
-              Text(
-                _formatDuration(widget.duration),
-                style: TextStyle(
-                  color: widget.textColor.withValues(alpha: 0.7),
-                  fontSize: 11,
+              SizedBox(
+                width: 32,
+                child: Center(
+                  child: Text(
+                    _formatDuration(widget.duration),
+                    style: TextStyle(
+                      color: widget.textColor.withValues(alpha: 0.7),
+                      fontSize: 11,
+                    ),
+                  ),
                 ),
               ),
-              const SizedBox(width: 8),
+              const SizedBox(width: 10),
               Expanded(
                 child: AnimatedSize(
                   duration: const Duration(milliseconds: 200),

lib/frontend/widgets/photo_viewer.dart

@@ -0,0 +1,54 @@
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/symbols.dart';
+
+class PhotoViewerScreen extends StatelessWidget {
+  final String baseUrl;
+
+  const PhotoViewerScreen({super.key, required this.baseUrl});
+
+  String get _url => baseUrl;
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: Colors.black,
+      body: Stack(
+        children: [
+          Positioned.fill(
+            child: InteractiveViewer(
+              minScale: 1,
+              maxScale: 5,
+              child: Center(
+                child: _url.isEmpty
+                    ? const Icon(Symbols.broken_image,
+                        color: Colors.white54, size: 64)
+                    : CachedNetworkImage(
+                        imageUrl: _url,
+                        fit: BoxFit.contain,
+                        fadeInDuration: const Duration(milliseconds: 120),
+                        placeholder: (_, _) => const Center(
+                          child: CircularProgressIndicator(color: Colors.white),
+                        ),
+                        errorWidget: (_, _, _) => const Icon(
+                          Symbols.broken_image,
+                          color: Colors.white54,
+                          size: 64,
+                        ),
+                      ),
+              ),
+            ),
+          ),
+          Positioned(
+            top: MediaQuery.of(context).padding.top + 8,
+            left: 8,
+            child: IconButton(
+              icon: const Icon(Symbols.close, color: Colors.white),
+              onPressed: () => Navigator.of(context).pop(),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/frontend/widgets/poll_view.dart

@@ -0,0 +1,139 @@
+import 'package:flutter/material.dart';
+
+import '../../main.dart';
+import '../../models/poll.dart';
+
+class PollView extends StatefulWidget {
+  final int chatId;
+  final String messageId;
+  final int pollId;
+  final String? fallbackTitle;
+  final Color textColor;
+  final Color dimColor;
+  final Color accentColor;
+
+  const PollView({
+    super.key,
+    required this.chatId,
+    required this.messageId,
+    required this.pollId,
+    required this.textColor,
+    required this.dimColor,
+    required this.accentColor,
+    this.fallbackTitle,
+  });
+
+  @override
+  State<PollView> createState() => _PollViewState();
+}
+
+class _PollViewState extends State<PollView> {
+  @override
+  void initState() {
+    super.initState();
+    pollsModule.fetch(widget.chatId, widget.messageId, widget.pollId);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ListenableBuilder(
+      listenable: pollsModule,
+      builder: (context, _) {
+        final poll = pollsModule.get(widget.pollId);
+        return _buildCard(poll);
+      },
+    );
+  }
+
+  Widget _buildCard(Poll? poll) {
+    final title = poll?.title.isNotEmpty == true
+        ? poll!.title
+        : (widget.fallbackTitle ?? 'Опрос');
+
+    return ConstrainedBox(
+      constraints: const BoxConstraints(minWidth: 220, maxWidth: 280),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Text(
+            title,
+            style: TextStyle(
+              color: widget.textColor,
+              fontSize: 16,
+              fontWeight: FontWeight.w600,
+            ),
+          ),
+          const SizedBox(height: 2),
+          Text(
+            poll == null
+                ? 'Загрузка опроса…'
+                : _votesLabel(poll.total),
+            style: TextStyle(color: widget.dimColor, fontSize: 12),
+          ),
+          const SizedBox(height: 10),
+          if (poll != null)
+            ...poll.answers.map((a) => _buildAnswer(a, poll.total)),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildAnswer(PollAnswer answer, int total) {
+    final pct = total > 0 ? answer.voteCount / total : 0.0;
+    final pctLabel = '${(pct * 100).round()}%';
+
+    return Padding(
+      padding: const EdgeInsets.only(bottom: 8),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            children: [
+              Expanded(
+                child: Text(
+                  answer.text,
+                  style: TextStyle(color: widget.textColor, fontSize: 14),
+                ),
+              ),
+              const SizedBox(width: 8),
+              Text(
+                pctLabel,
+                style: TextStyle(
+                  color: widget.dimColor,
+                  fontSize: 13,
+                  fontWeight: FontWeight.w600,
+                ),
+              ),
+            ],
+          ),
+          const SizedBox(height: 4),
+          ClipRRect(
+            borderRadius: BorderRadius.circular(4),
+            child: LinearProgressIndicator(
+              value: pct,
+              minHeight: 6,
+              backgroundColor: widget.dimColor.withValues(alpha: 0.2),
+              valueColor: AlwaysStoppedAnimation<Color>(widget.accentColor),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  String _votesLabel(int total) {
+    if (total == 0) return 'Нет голосов';
+    final mod10 = total % 10;
+    final mod100 = total % 100;
+    String word;
+    if (mod10 == 1 && mod100 != 11) {
+      word = 'голос';
+    } else if (mod10 >= 2 && mod10 <= 4 && (mod100 < 10 || mod100 >= 20)) {
+      word = 'голоса';
+    } else {
+      word = 'голосов';
+    }
+    return '$total $word';
+  }
+}

lib/frontend/widgets/rightward_drag_recognizer.dart

@@ -0,0 +1,81 @@
+import 'package:flutter/gestures.dart';
+
+class RightwardDragRecognizer extends HorizontalDragGestureRecognizer {
+  RightwardDragRecognizer({super.debugOwner}) {
+    onlyAcceptDragOnThreshold = true;
+  }
+
+  static const double _kMinAcceptVelocity = 700.0;
+  static const double _kMinAcceptDistance = 20.0;
+
+  final Map<int, Offset> _initialPositions = {};
+  final Map<int, VelocityTracker> _velocityTrackers = {};
+  final Map<int, double> _currentDeltaX = {};
+
+  @override
+  void addAllowedPointer(PointerDownEvent event) {
+    _initialPositions[event.pointer] = event.position;
+    final tracker = VelocityTracker.withKind(event.kind);
+    tracker.addPosition(event.timeStamp, event.localPosition);
+    _velocityTrackers[event.pointer] = tracker;
+    super.addAllowedPointer(event);
+  }
+
+  @override
+  void handleEvent(PointerEvent event) {
+    if (event is PointerMoveEvent) {
+      _velocityTrackers[event.pointer]
+          ?.addPosition(event.timeStamp, event.localPosition);
+      final initial = _initialPositions[event.pointer];
+      if (initial != null) {
+        final dx = event.position.dx - initial.dx;
+        _currentDeltaX[event.pointer] = dx;
+        if (dx < -kTouchSlop) {
+          stopTrackingPointer(event.pointer);
+          _cleanup(event.pointer);
+          return;
+        }
+      }
+    }
+    super.handleEvent(event);
+  }
+
+  @override
+  bool hasSufficientGlobalDistanceToAccept(
+    PointerDeviceKind pointerDeviceKind,
+    double? deviceTouchSlop,
+  ) {
+    if (!super.hasSufficientGlobalDistanceToAccept(
+        pointerDeviceKind, deviceTouchSlop)) {
+      return false;
+    }
+    double maxDx = 0;
+    for (final dx in _currentDeltaX.values) {
+      if (dx > maxDx) maxDx = dx;
+    }
+    if (maxDx < _kMinAcceptDistance) return false;
+    for (final tracker in _velocityTrackers.values) {
+      final vx = tracker.getVelocity().pixelsPerSecond.dx;
+      if (vx >= _kMinAcceptVelocity) return true;
+    }
+    return false;
+  }
+
+  void _cleanup(int pointer) {
+    _initialPositions.remove(pointer);
+    _velocityTrackers.remove(pointer);
+    _currentDeltaX.remove(pointer);
+  }
+
+  @override
+  void didStopTrackingLastPointer(int pointer) {
+    _cleanup(pointer);
+    super.didStopTrackingLastPointer(pointer);
+  }
+
+  @override
+  void rejectGesture(int pointer) {
+    _cleanup(pointer);
+    super.rejectGesture(pointer);
+  }
+}

lib/frontend/widgets/swipe_route.dart

@@ -1,12 +1,101 @@
+import 'dart:math' as math;
+import 'dart:ui';
+
 import 'package:flutter/cupertino.dart';
 
-class SwipeRoute<T> extends CupertinoPageRoute<T> {
+import 'rightward_drag_recognizer.dart';
+
+class SwipeRoute<T> extends PageRoute<T> {
   SwipeRoute({
-    required super.builder,
+    required this.builder,
     super.settings,
-    super.maintainState,
     super.fullscreenDialog,
+    this.maintainState = true,
   });
+
+  final WidgetBuilder builder;
+
+  @override
+  final bool maintainState;
+
+  @override
+  Color? get barrierColor => null;
+
+  @override
+  String? get barrierLabel => null;
+
+  @override
+  Duration get transitionDuration => const Duration(milliseconds: 400);
+
+  @override
+  Duration get reverseTransitionDuration => const Duration(milliseconds: 400);
+
+  @override
+  bool canTransitionTo(TransitionRoute<dynamic> nextRoute) {
+    return nextRoute is SwipeRoute || nextRoute is CupertinoRouteTransitionMixin;
+  }
+
+  @override
+  bool get popGestureInProgress => _gestureController != null;
+
+  _SwipeBackController<T>? _gestureController;
+
+  @override
+  bool get popGestureEnabled {
+    if (isFirst) return false;
+    if (willHandlePopInternally) return false;
+    if (popDisposition == RoutePopDisposition.doNotPop) return false;
+    if (animation?.status != AnimationStatus.completed) return false;
+    if (secondaryAnimation?.status != AnimationStatus.dismissed) return false;
+    if (popGestureInProgress) return false;
+    return true;
+  }
+
+  _SwipeBackController<T> _startPopGesture() {
+    final gesture = _SwipeBackController<T>(
+      navigator: navigator!,
+      controller: controller!,
+    );
+    _gestureController = gesture;
+    gesture._onEnd = () {
+      if (_gestureController == gesture) {
+        _gestureController = null;
+      }
+    };
+    return gesture;
+  }
+
+  @override
+  Widget buildPage(
+    BuildContext context,
+    Animation<double> animation,
+    Animation<double> secondaryAnimation,
+  ) {
+    return Semantics(
+      scopesRoute: true,
+      explicitChildNodes: true,
+      child: builder(context),
+    );
+  }
+
+  @override
+  Widget buildTransitions(
+    BuildContext context,
+    Animation<double> animation,
+    Animation<double> secondaryAnimation,
+    Widget child,
+  ) {
+    return _SwipeBackGestureDetector<T>(
+      enabledCallback: () => popGestureEnabled,
+      onStartPopGesture: _startPopGesture,
+      child: CupertinoPageTransition(
+        primaryRouteAnimation: animation,
+        secondaryRouteAnimation: secondaryAnimation,
+        linearTransition: popGestureInProgress,
+        child: child,
+      ),
+    );
+  }
 }
 
 Future<T?> pushSwipeable<T>(
@@ -18,3 +107,130 @@ Future<T?> pushSwipeable<T>(
     SwipeRoute<T>(builder: builder, settings: settings),
   );
 }
+
+class _SwipeBackGestureDetector<T> extends StatefulWidget {
+  const _SwipeBackGestureDetector({
+    required this.enabledCallback,
+    required this.onStartPopGesture,
+    required this.child,
+  });
+
+  final ValueGetter<bool> enabledCallback;
+  final ValueGetter<_SwipeBackController<T>> onStartPopGesture;
+  final Widget child;
+
+  @override
+  State<_SwipeBackGestureDetector<T>> createState() =>
+      _SwipeBackGestureDetectorState<T>();
+}
+
+class _SwipeBackGestureDetectorState<T>
+    extends State<_SwipeBackGestureDetector<T>> {
+  _SwipeBackController<T>? _backController;
+  double _width = 0;
+
+  void _handleStart(DragStartDetails details) {
+    if (!widget.enabledCallback()) return;
+    _width = context.size?.width ?? MediaQuery.of(context).size.width;
+    if (_width <= 0) _width = 1.0;
+    _backController = widget.onStartPopGesture();
+  }
+
+  void _handleUpdate(DragUpdateDetails details) {
+    final delta = details.primaryDelta ?? 0.0;
+    _backController?.dragUpdate(delta / _width);
+  }
+
+  void _handleEnd(DragEndDetails details) {
+    final velocity = details.velocity.pixelsPerSecond.dx / _width;
+    _backController?.dragEnd(velocity);
+    _backController = null;
+  }
+
+  void _handleCancel() {
+    _backController?.dragEnd(0.0);
+    _backController = null;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return RawGestureDetector(
+      behavior: HitTestBehavior.translucent,
+      gestures: <Type, GestureRecognizerFactory>{
+        RightwardDragRecognizer:
+            GestureRecognizerFactoryWithHandlers<RightwardDragRecognizer>(
+          () => RightwardDragRecognizer(debugOwner: this),
+          (instance) {
+            instance
+              ..onStart = _handleStart
+              ..onUpdate = _handleUpdate
+              ..onEnd = _handleEnd
+              ..onCancel = _handleCancel;
+          },
+        ),
+      },
+      child: widget.child,
+    );
+  }
+}
+
+class _SwipeBackController<T> {
+  _SwipeBackController({
+    required this.navigator,
+    required this.controller,
+  });
+
+  final NavigatorState navigator;
+  final AnimationController controller;
+  VoidCallback? _onEnd;
+
+  static const double _kMinFlingVelocity = 1.0;
+
+  void dragUpdate(double delta) {
+    controller.value -= delta;
+  }
+
+  void dragEnd(double velocity) {
+    const animationCurve = Curves.fastLinearToSlowEaseIn;
+    final bool animateForward;
+
+    if (velocity.abs() >= _kMinFlingVelocity) {
+      animateForward = velocity <= 0;
+    } else {
+      animateForward = controller.value > 0.5;
+    }
+
+    if (animateForward) {
+      final forwardMs = math.min(
+        lerpDouble(800, 0, controller.value)!.floor(),
+        300,
+      );
+      controller.animateTo(
+        1.0,
+        duration: Duration(milliseconds: forwardMs),
+        curve: animationCurve,
+      );
+    } else {
+      navigator.pop();
+      if (controller.isAnimating) {
+        final backMs = lerpDouble(0, 800, controller.value)!.floor();
+        controller.animateBack(
+          0.0,
+          duration: Duration(milliseconds: backMs),
+          curve: animationCurve,
+        );
+      }
+    }
+
+    if (controller.isAnimating) {
+      late AnimationStatusListener statusCb;
+      statusCb = (status) {
+        _onEnd?.call();
+        controller.removeStatusListener(statusCb);
+      };
+      controller.addStatusListener(statusCb);
+    } else {
+      _onEnd?.call();
+    }
+  }
+}

lib/frontend/widgets/swipe_to_pop.dart

@@ -1,22 +1,19 @@
-import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 
+import 'rightward_drag_recognizer.dart';
+
 class SwipeToPop extends StatefulWidget {
   final Widget child;
-  final double edgeWidth;
   final double popThreshold;
   final double velocityThreshold;
-  final bool fullWidth;
   final bool enabled;
   final VoidCallback? onPop;
 
   const SwipeToPop({
     super.key,
     required this.child,
-    this.edgeWidth = 28,
     this.popThreshold = 0.35,
     this.velocityThreshold = 700,
-    this.fullWidth = false,
     this.enabled = true,
     this.onPop,
   });
@@ -28,6 +25,7 @@ class SwipeToPop extends StatefulWidget {
 class _SwipeToPopState extends State<SwipeToPop>
     with SingleTickerProviderStateMixin {
   late final AnimationController _controller;
+  double _width = 0;
 
   @override
   void initState() {
@@ -53,17 +51,19 @@ class _SwipeToPopState extends State<SwipeToPop>
   }
 
   void _onDragStart(DragStartDetails _) {
+    _width = context.size?.width ?? MediaQuery.of(context).size.width;
+    if (_width <= 0) _width = 1.0;
     _controller.stop();
   }
 
-  void _onDragUpdate(DragUpdateDetails d, double width) {
-    if (width <= 0) return;
-    final next = (_controller.value + d.delta.dx / width).clamp(0.0, 1.0);
+  void _onDragUpdate(DragUpdateDetails d) {
+    final next =
+        (_controller.value + (d.primaryDelta ?? 0.0) / _width).clamp(0.0, 1.0);
     _controller.value = next;
   }
 
-  Future<void> _onDragEnd(DragEndDetails d, double width) async {
-    final velocity = d.primaryVelocity ?? 0;
+  Future<void> _onDragEnd(DragEndDetails d) async {
+    final velocity = d.velocity.pixelsPerSecond.dx;
     final pastThreshold = _controller.value > widget.popThreshold ||
         velocity > widget.velocityThreshold;
     if (pastThreshold) {
@@ -96,44 +96,35 @@ class _SwipeToPopState extends State<SwipeToPop>
     return LayoutBuilder(
       builder: (context, constraints) {
         final width = constraints.maxWidth;
-        final gestureChild = GestureDetector(
+        return RawGestureDetector(
           behavior: HitTestBehavior.translucent,
-          dragStartBehavior: DragStartBehavior.down,
-          onHorizontalDragStart: _onDragStart,
-          onHorizontalDragUpdate: (d) => _onDragUpdate(d, width),
-          onHorizontalDragEnd: (d) => _onDragEnd(d, width),
-          onHorizontalDragCancel: _onDragCancel,
-        );
-
-        return Stack(
-          children: [
-            Positioned.fill(
-              child: AnimatedBuilder(
-                animation: _controller,
-                builder: (context, child) {
-                  final t = _controller.value;
-                  return Transform.translate(
-                    offset: Offset(t * width, 0),
-                    child: Opacity(
-                      opacity: (1.0 - t * 0.35).clamp(0.0, 1.0),
-                      child: child,
-                    ),
-                  );
-                },
-                child: widget.child,
-              ),
+          gestures: <Type, GestureRecognizerFactory>{
+            RightwardDragRecognizer:
+                GestureRecognizerFactoryWithHandlers<RightwardDragRecognizer>(
+              () => RightwardDragRecognizer(debugOwner: this),
+              (instance) {
+                instance
+                  ..onStart = _onDragStart
+                  ..onUpdate = _onDragUpdate
+                  ..onEnd = _onDragEnd
+                  ..onCancel = _onDragCancel;
+              },
             ),
-            if (widget.fullWidth)
-              Positioned.fill(child: gestureChild)
-            else
-              Positioned(
-                left: 0,
-                top: 0,
-                bottom: 0,
-                width: widget.edgeWidth,
-                child: gestureChild,
-              ),
-          ],
+          },
+          child: AnimatedBuilder(
+            animation: _controller,
+            builder: (context, child) {
+              final t = _controller.value;
+              return Transform.translate(
+                offset: Offset(t * width, 0),
+                child: Opacity(
+                  opacity: (1.0 - t * 0.35).clamp(0.0, 1.0),
+                  child: child,
+                ),
+              );
+            },
+            child: widget.child,
+          ),
         );
       },
     );

lib/frontend/widgets/video_player_screen.dart

@@ -0,0 +1,165 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:video_player/video_player.dart';
+
+import '../../core/utils/media_cache.dart';
+
+class VideoPlayerScreen extends StatefulWidget {
+  final String cacheName;
+  final String? url;
+
+  const VideoPlayerScreen({
+    super.key,
+    required this.cacheName,
+    this.url,
+  });
+
+  @override
+  State<VideoPlayerScreen> createState() => _VideoPlayerScreenState();
+}
+
+class _VideoPlayerScreenState extends State<VideoPlayerScreen> {
+  VideoPlayerController? _controller;
+  bool _error = false;
+  double _progress = 0;
+
+  @override
+  void initState() {
+    super.initState();
+    _init();
+  }
+
+  Future<void> _init() async {
+    File? file = await MediaCache.existing(widget.cacheName);
+    if (file == null && widget.url != null) {
+      file = await MediaCache.getOrDownload(
+        widget.cacheName,
+        widget.url!,
+        onProgress: (p) {
+          if (mounted) setState(() => _progress = p);
+        },
+      );
+    }
+    if (!mounted) return;
+    if (file == null) {
+      setState(() => _error = true);
+      return;
+    }
+
+    final controller = VideoPlayerController.file(file);
+    _controller = controller;
+    try {
+      await controller.initialize();
+      if (!mounted) return;
+      setState(() {});
+      controller.play();
+      controller.addListener(_onTick);
+    } catch (_) {
+      if (mounted) setState(() => _error = true);
+    }
+  }
+
+  void _onTick() {
+    if (mounted) setState(() {});
+  }
+
+  @override
+  void dispose() {
+    _controller?.removeListener(_onTick);
+    _controller?.dispose();
+    super.dispose();
+  }
+
+  void _togglePlay() {
+    final c = _controller;
+    if (c == null || !c.value.isInitialized) return;
+    setState(() => c.value.isPlaying ? c.pause() : c.play());
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final c = _controller;
+    final ready = c != null && c.value.isInitialized;
+
+    return Scaffold(
+      backgroundColor: Colors.black,
+      body: Stack(
+        children: [
+          Center(
+            child: _error
+                ? const Icon(Symbols.error, color: Colors.white54, size: 64)
+                : ready
+                    ? AspectRatio(
+                        aspectRatio: c.value.aspectRatio,
+                        child: VideoPlayer(c),
+                      )
+                    : _buildLoading(),
+          ),
+          if (ready)
+            Positioned.fill(
+              child: GestureDetector(
+                behavior: HitTestBehavior.opaque,
+                onTap: _togglePlay,
+                child: AnimatedOpacity(
+                  opacity: c.value.isPlaying ? 0 : 1,
+                  duration: const Duration(milliseconds: 150),
+                  child: Center(
+                    child: Container(
+                      width: 64,
+                      height: 64,
+                      decoration: const BoxDecoration(
+                        color: Colors.black54,
+                        shape: BoxShape.circle,
+                      ),
+                      child: const Icon(Symbols.play_arrow,
+                          color: Colors.white, size: 40),
+                    ),
+                  ),
+                ),
+              ),
+            ),
+          if (ready)
+            Positioned(
+              left: 0,
+              right: 0,
+              bottom: 0,
+              child: VideoProgressIndicator(
+                c,
+                allowScrubbing: true,
+                colors: const VideoProgressColors(playedColor: Colors.white),
+              ),
+            ),
+          Positioned(
+            top: MediaQuery.of(context).padding.top + 8,
+            left: 8,
+            child: IconButton(
+              icon: const Icon(Symbols.close, color: Colors.white),
+              onPressed: () => Navigator.of(context).pop(),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildLoading() {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        CircularProgressIndicator(
+          color: Colors.white,
+          value: _progress > 0 && _progress < 1 ? _progress : null,
+        ),
+        if (_progress > 0 && _progress < 1) ...[
+          const SizedBox(height: 12),
+          Text(
+            '${(_progress * 100).round()}%',
+            style: const TextStyle(color: Colors.white70, fontSize: 13),
+          ),
+        ],
+      ],
+    );
+  }
+}

lib/l10n/app_en.arb

@@ -168,5 +168,8 @@
   "editProfileSave": "Save",
   "editProfileFirstName": "First name",
   "editProfileLastName": "Last name",
-  "editProfileRemovePhoto": "Remove photo"
+  "editProfileRemovePhoto": "Remove photo",
+  "registrationTitle": "Create your profile",
+  "registrationSubtitle": "Add your name and pick an avatar",
+  "registrationChooseAvatar": "Choose an avatar"
 }

lib/l10n/app_localizations.dart

@@ -1009,6 +1009,24 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Remove photo'**
   String get editProfileRemovePhoto;
+
+  /// No description provided for @registrationTitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Create your profile'**
+  String get registrationTitle;
+
+  /// No description provided for @registrationSubtitle.
+  ///
+  /// In en, this message translates to:
+  /// **'Add your name and pick an avatar'**
+  String get registrationSubtitle;
+
+  /// No description provided for @registrationChooseAvatar.
+  ///
+  /// In en, this message translates to:
+  /// **'Choose an avatar'**
+  String get registrationChooseAvatar;
 }
 
 class _AppLocalizationsDelegate

lib/l10n/app_localizations_en.dart

@@ -478,4 +478,13 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get editProfileRemovePhoto => 'Remove photo';
+
+  @override
+  String get registrationTitle => 'Create your profile';
+
+  @override
+  String get registrationSubtitle => 'Add your name and pick an avatar';
+
+  @override
+  String get registrationChooseAvatar => 'Choose an avatar';
 }

lib/l10n/app_localizations_ru.dart

@@ -480,4 +480,13 @@ class AppLocalizationsRu extends AppLocalizations {
 
   @override
   String get editProfileRemovePhoto => 'Удалить фото';
+
+  @override
+  String get registrationTitle => 'Создание профиля';
+
+  @override
+  String get registrationSubtitle => 'Укажите имя и выберите аватар';
+
+  @override
+  String get registrationChooseAvatar => 'Выберите аватар';
 }

lib/l10n/app_ru.arb

@@ -168,5 +168,8 @@
   "editProfileSave": "Сохранить",
   "editProfileFirstName": "Имя",
   "editProfileLastName": "Фамилия",
-  "editProfileRemovePhoto": "Удалить фото"
+  "editProfileRemovePhoto": "Удалить фото",
+  "registrationTitle": "Создание профиля",
+  "registrationSubtitle": "Укажите имя и выберите аватар",
+  "registrationChooseAvatar": "Выберите аватар"
 }

lib/main.dart

@@ -10,6 +10,7 @@ import 'package:m3e_collection/m3e_collection.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'backend/api.dart';
+import 'core/cache/info_cache.dart';
 import 'core/config/app_accent.dart';
 import 'core/config/app_amoled.dart';
 import 'core/config/app_bubble_behavior.dart';
@@ -18,6 +19,9 @@ import 'core/config/app_cache_extent.dart';
 import 'core/config/app_fonts.dart';
 import 'core/config/app_message_actions_style.dart';
 import 'core/config/app_swipe_back_desktop.dart';
+import 'core/config/app_pranks.dart';
+import 'core/config/app_stories.dart';
+import 'core/config/app_media_cache.dart';
 import 'core/config/app_theme_mode.dart';
 import 'core/config/app_theme_schedule.dart';
 import 'backend/modules/account.dart';
@@ -25,6 +29,7 @@ import 'backend/modules/chats.dart';
 import 'backend/modules/contacts.dart';
 import 'backend/modules/file_uploader.dart';
 import 'backend/modules/messages.dart';
+import 'backend/modules/polls.dart';
 import 'core/push/push_service.dart';
 import 'core/storage/app_database.dart';
 import 'core/transport/tls_config.dart';
@@ -41,7 +46,10 @@ import 'frontend/widgets/theme_reveal.dart';
 final api = Api();
 final accountModule = AccountModule(api);
 final messagesModule = MessagesModule(api);
+final pollsModule = PollsModule(api);
 final fileUploader = FileUploader(api: api, messages: messagesModule);
+final RouteObserver<PageRoute<dynamic>> appRouteObserver =
+    RouteObserver<PageRoute<dynamic>>();
 
 Future<Locale> _loadInitialLocale() async {
   final prefs = await SharedPreferences.getInstance();
@@ -63,19 +71,38 @@ void main() async {
   if (activeAccountId != null) {
     await ContactsModule.primeCacheFromDb(activeAccountId);
   }
+  attachInfoCacheApi(api);
   ChatsModule.attachGlobalPushHandlers(api);
+
+  final packageInfoFuture = PackageInfo.fromPlatform();
+  final localeFuture = _loadInitialLocale();
+  final hapticsFuture = Haptics.load();
+  final prefsFuture = SharedPreferences.getInstance();
+  final accentFuture = AppAccent.load();
+  final bubbleShapeFuture = AppBubbleShape.load();
+  final bubbleBehaviorFuture = AppBubbleBehavior.load();
+  final cacheExtentFuture = AppCacheExtent.load();
+  final themeModeFuture = AppThemeModeConfig.load();
+  final amoledFuture = AppAmoled.load();
+  final themeScheduleFuture = AppThemeSchedule.load();
+  final messageActionsFuture = AppMessageActionsStyle.load();
+  final swipeBackFuture = AppSwipeBackDesktop.load();
+  final pranksFuture = AppPranks.load();
+  final storiesFuture = AppStories.load();
+  final cacheLimitFuture = AppMediaCacheLimit.load();
+
   await api.connect();
 
-  final packageInfo = await PackageInfo.fromPlatform();
+  final packageInfo = await packageInfoFuture;
   if (packageInfo.packageName == 'ru.oneme.app') {
     await PushService.instance.init(api: api, account: accountModule);
   }
 
-  final initialLocale = await _loadInitialLocale();
+  final initialLocale = await localeFuture;
 
-  await Haptics.load();
+  await hapticsFuture;
 
-  final prefs = await SharedPreferences.getInstance();
+  final prefs = await prefsFuture;
   await FileHistoryCache.load(prefs);
   final initialFpsOverlay = prefs.getBool('dev_fps_overlay') ?? false;
   final initialVpnBypass = prefs.getBool(VpnBypassService.prefKey) ?? false;
@@ -85,15 +112,18 @@ void main() async {
   final initialFontScale = AppFonts.clampScale(
     prefs.getDouble(AppFonts.scalePrefKey) ?? AppFonts.defaultScale,
   );
-  final initialAccentSeed = await AppAccent.load();
-  AppBubbleShape.current.value = await AppBubbleShape.load();
-  AppBubbleBehavior.current.value = await AppBubbleBehavior.load();
-  AppCacheExtent.current.value = await AppCacheExtent.load();
-  AppThemeModeConfig.current.value = await AppThemeModeConfig.load();
-  AppAmoled.current.value = await AppAmoled.load();
-  AppThemeSchedule.current.value = await AppThemeSchedule.load();
-  AppMessageActionsStyle.current.value = await AppMessageActionsStyle.load();
-  AppSwipeBackDesktop.current.value = await AppSwipeBackDesktop.load();
+  final initialAccentSeed = await accentFuture;
+  AppBubbleShape.current.value = await bubbleShapeFuture;
+  AppBubbleBehavior.current.value = await bubbleBehaviorFuture;
+  AppCacheExtent.current.value = await cacheExtentFuture;
+  AppThemeModeConfig.current.value = await themeModeFuture;
+  AppAmoled.current.value = await amoledFuture;
+  AppThemeSchedule.current.value = await themeScheduleFuture;
+  AppMessageActionsStyle.current.value = await messageActionsFuture;
+  AppSwipeBackDesktop.current.value = await swipeBackFuture;
+  AppPranks.current.value = await pranksFuture;
+  AppStories.current.value = await storiesFuture;
+  AppMediaCacheLimit.current.value = await cacheLimitFuture;
   runApp(
     KometApp(
       initialLocale: initialLocale,
@@ -626,6 +656,7 @@ class KometAppState extends State<KometApp>
               theme: _lightTheme,
               darkTheme: _darkTheme,
               navigatorKey: KometApp.navigatorKey,
+              navigatorObservers: [appRouteObserver],
               builder: (context, child) {
                 return ValueListenableBuilder<double>(
                   valueListenable: fontScale,
@@ -683,8 +714,13 @@ class _StartupScreenState extends State<_StartupScreen> {
   }
 
   Future<void> _tryAutoLogin() async {
-    final accountId = await TokenStorage.getActiveAccountId();
+    int? accountId = await TokenStorage.getActiveAccountId();
+
     if (accountId == null || await TokenStorage.readToken(accountId) == null) {
+      accountId = await _recoverActiveAccount();
+    }
+
+    if (accountId == null) {
       _goToLogin();
       return;
     }
@@ -701,6 +737,19 @@ class _StartupScreenState extends State<_StartupScreen> {
     }
   }
 
+  Future<int?> _recoverActiveAccount() async {
+    final profiles = await AppDatabase.loadAllProfiles();
+    for (final profile in profiles) {
+      if (await TokenStorage.readToken(profile.id) != null) {
+        await TokenStorage.setActiveAccount(profile.id);
+        await AppDatabase.setActiveAccount(profile.id);
+        await ContactsModule.primeCacheFromDb(profile.id);
+        return profile.id;
+      }
+    }
+    return null;
+  }
+
   void _goToLogin() {
     if (mounted) {
       Navigator.pushReplacement(

lib/models/attachment.dart

@@ -7,6 +7,7 @@ enum AttachmentType {
   location,
   sticker,
   control,
+  poll,
 }
 
 abstract class MessageAttachment {
@@ -41,6 +42,8 @@ abstract class MessageAttachment {
         return LocationAttachment.fromMap(map);
       case 'CONTROL':
         return ControlAttachment.fromMap(map);
+      case 'POLL':
+        return PollAttachment.fromMap(map);
       case 'SHARE':
         return FileAttachment.fromMap(map);
       case 'INLINE_KEYBOARD':
@@ -471,6 +474,31 @@ class ControlAttachment extends MessageAttachment {
   };
 }
 
+class PollAttachment extends MessageAttachment {
+  final int pollId;
+  final String? title;
+
+  const PollAttachment({
+    required this.pollId,
+    this.title,
+  }) : super(type: AttachmentType.poll);
+
+  factory PollAttachment.fromMap(Map<String, dynamic> map) {
+    final id = map['pollId'] ?? map['id'];
+    return PollAttachment(
+      pollId: id is int ? id : int.tryParse(id?.toString() ?? '') ?? 0,
+      title: (map['title'] ?? map['question'])?.toString(),
+    );
+  }
+
+  @override
+  Map<String, dynamic> toMap() => {
+    '_type': 'POLL',
+    'pollId': pollId,
+    'title': title,
+  };
+}
+
 class ForwardedMessageAttachment extends MessageAttachment {
   final int originalSenderId;
   final String? originalSenderName;

lib/models/poll.dart

@@ -0,0 +1,87 @@
+class PollAnswer {
+  final int answerId;
+  final String text;
+  final int voteCount;
+  final double rate;
+  final List<int> votes;
+
+  const PollAnswer({
+    required this.answerId,
+    required this.text,
+    this.voteCount = 0,
+    this.rate = 0,
+    this.votes = const [],
+  });
+}
+
+class Poll {
+  final int pollId;
+  final String title;
+  final int settings;
+  final int version;
+  final int total;
+  final List<PollAnswer> answers;
+  final List<int> voterPreviewIds;
+
+  const Poll({
+    required this.pollId,
+    required this.title,
+    this.settings = 0,
+    this.version = 0,
+    this.total = 0,
+    this.answers = const [],
+    this.voterPreviewIds = const [],
+  });
+
+  bool get isMultiple => settings & 0x1 != 0;
+
+  bool votedBy(int userId) =>
+      answers.any((a) => a.votes.contains(userId));
+
+  factory Poll.fromServerMap(Map<dynamic, dynamic> map) {
+    final state = map['state'];
+    final stateMap = state is Map ? state : const {};
+
+    final resultsById = <int, Map>{};
+    final result = stateMap['result'];
+    if (result is List) {
+      for (final r in result) {
+        if (r is Map && r['answerId'] is int) {
+          resultsById[r['answerId'] as int] = r;
+        }
+      }
+    }
+
+    final answers = <PollAnswer>[];
+    final rawAnswers = map['answers'];
+    if (rawAnswers is List) {
+      for (final a in rawAnswers) {
+        if (a is! Map) continue;
+        final id = a['answerId'] as int? ?? 0;
+        final res = resultsById[id];
+        answers.add(PollAnswer(
+          answerId: id,
+          text: a['text']?.toString() ?? '',
+          voteCount: (res?['voteCount'] as num?)?.toInt() ?? 0,
+          rate: (res?['rate'] as num?)?.toDouble() ?? 0,
+          votes: (res?['votes'] as List?)
+                  ?.whereType<int>()
+                  .toList() ??
+              const [],
+        ));
+      }
+    }
+
+    return Poll(
+      pollId: map['pollId'] as int? ?? 0,
+      title: map['title']?.toString() ?? '',
+      settings: map['settings'] as int? ?? 0,
+      version: map['version'] as int? ?? 0,
+      total: (stateMap['total'] as num?)?.toInt() ?? 0,
+      answers: answers,
+      voterPreviewIds:
+          (stateMap['voterPreviewIds'] as List?)?.whereType<int>().toList() ??
+              const [],
+    );
+  }
+}

pubspec.lock

@@ -146,13 +146,21 @@ packages:
     source: hosted
     version: "0.3.5+2"
   crypto:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: crypto
       sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
       url: "https://pub.dev"
     source: hosted
     version: "3.0.7"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      sha256: "09bad715f418841f976c77db72d5398dc1253c21fb9c0c7f0b0b985860b2d58e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
   dart_lz4:
     dependency: "direct main"
     description:
@@ -421,6 +429,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.2"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      sha256: "6d1264f2dffa1b1101c25a91dff0dc2daee4c18e87cd8538729773c073dbf602"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.15.6"
   http:
     dependency: transitive
     description:
@@ -446,7 +462,7 @@ packages:
     source: hosted
     version: "0.2.1"
   image:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: image
       sha256: f9881ff4998044947ec38d098bc7c8316ae1186fa786eddffdb867b9bc94dfce
@@ -585,10 +601,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: "1741988757a65eb6b36abe716829688cf01910bbf91c34354ff7ec1c3de2b349"
+      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
       url: "https://pub.dev"
     source: hosted
-    version: "1.18.0"
+    version: "1.17.0"
   mobile_scanner:
     dependency: "direct main"
     description:
@@ -645,6 +661,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.0"
+  open_filex:
+    dependency: "direct main"
+    description:
+      name: open_filex
+      sha256: "9976da61b6a72302cf3b1efbce259200cd40232643a467aac7370addf94d6900"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.7.0"
   package_info_plus:
     dependency: "direct main"
     description:
@@ -670,7 +694,7 @@ packages:
     source: hosted
     version: "1.9.1"
   path_provider:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: path_provider
       sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
@@ -958,10 +982,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "949a932224383300f01be9221c39180316445ecb8e7547f70a41a35bf421fb9e"
+      sha256: "8161c84903fd860b26bfdefb7963b3f0b68fee7adea0f59ef805ecca346f0c7a"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.11"
+    version: "0.7.10"
   timezone:
     dependency: "direct main"
     description:
@@ -1002,6 +1026,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.2.0"
+  video_player:
+    dependency: "direct main"
+    description:
+      name: video_player
+      sha256: "48a7bdaa38a3d50ec10c78627abdbfad863fdf6f0d6e08c7c3c040cfd80ae36f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.1"
+  video_player_android:
+    dependency: transitive
+    description:
+      name: video_player_android
+      sha256: "877a6c7ba772456077d7bfd71314629b3fe2b73733ce503fc77c3314d43a0ca0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.9.5"
+  video_player_avfoundation:
+    dependency: transitive
+    description:
+      name: video_player_avfoundation
+      sha256: "9338f3ec22774f88146b22f13273a446719b1da010fd200c4d1d97802156ac58"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.9.7"
+  video_player_platform_interface:
+    dependency: transitive
+    description:
+      name: video_player_platform_interface
+      sha256: "16eaed5268c571c31840dc58ef8da5f0cd4db2a98490c3b8f1cf70122546c6e0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.7.0"
+  video_player_web:
+    dependency: transitive
+    description:
+      name: video_player_web
+      sha256: "9f3c00be2ef9b76a95d94ac5119fb843dca6f2c69e6c9968f6f2b6c9e7afbdeb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
   vm_service:
     dependency: transitive
     description:

pubspec.yaml

@@ -39,11 +39,13 @@ dependencies:
   dart_lz4: ^1.0.0
   libcompress: ^1.0.0
   msgpack_dart: ^1.0.1
+  crypto: ^3.0.7
   logger: ^2.6.2
   device_info_plus: 12.3.0
   flutter_timezone: ^5.0.1
   timezone: ^0.11.0
   file_picker: ^8.0.0
+  image: ^4.3.0
   sqflite: ^2.4.2
   sqflite_common_ffi: ^2.4.0+2
   path: ^1.9.1
@@ -55,6 +57,9 @@ dependencies:
   package_info_plus: ^9.0.1
   mobile_scanner: ^7.2.0
   cached_network_image: ^3.4.1
+  path_provider: ^2.1.4
+  open_filex: ^4.5.0
+  video_player: ^2.9.2
   firebase_core: ^4.1.1
   firebase_messaging: ^16.0.2
   flutter_local_notifications: ^21.0.0