feat(chats): скрытие чатов групповых звонков + тоггл показа скрытых чатов

lib/frontend/screens/chats/chat_list_screen.dart

@@ -549,6 +549,7 @@ class _ChatListScreenState extends State<ChatListScreen>
     AppStories.current.addListener(_onStoriesEnabledChanged);
     storiesModule.storiesChanged.addListener(_onStoriesDataChanged);
     KometSettings.hideAllChatsFolder.addListener(_requestReload);
+    KometSettings.showHiddenChats.addListener(_requestReload);
     _maybeLoadStories();
     _typingSub = api.pushStream
         .where((p) => p.opcode == Opcode.notifTyping)
@@ -709,7 +710,10 @@ class _ChatListScreenState extends State<ChatListScreen>
     }
 
     try {
-      final loadedChats = await chats.getChats(p.id);
+      final loadedChats = await chats.getChats(
+        p.id,
+        includeHidden: KometSettings.showHiddenChats.value,
+      );
       var folders = await FoldersModule.loadFolders(p.id);
       final foldersKnown = await FoldersModule.hasReceivedFoldersList(p.id);
       final contactIds = (await ContactsModule.getContacts(p.id))
@@ -1153,6 +1157,7 @@ class _ChatListScreenState extends State<ChatListScreen>
     AppStories.current.removeListener(_onStoriesEnabledChanged);
     storiesModule.storiesChanged.removeListener(_onStoriesDataChanged);
     KometSettings.hideAllChatsFolder.removeListener(_requestReload);
+    KometSettings.showHiddenChats.removeListener(_requestReload);
     _loginSub?.cancel();
     _stateSub?.cancel();
     _typingSub?.cancel();

lib/frontend/screens/profile/komet_settings_screen.dart

@@ -86,6 +86,18 @@ class KometSettingsScreen extends StatelessWidget {
                     onChanged: KometSettings.setHideAllChatsFolder,
                   ),
                 ),
+                ValueListenableBuilder<bool>(
+                  valueListenable: KometSettings.showHiddenChats,
+                  builder: (context, value, _) => SettingsToggleTile(
+                    icon: Symbols.visibility_lock,
+                    label: 'Show hidden chats',
+                    subtitle:
+                        'Показывать скрытые чаты (например, от групповых '
+                        'звонков), которые обычно не отображаются в списке',
+                    value: value,
+                    onChanged: KometSettings.setShowHiddenChats,
+                  ),
+                ),
               ],
             ),
             const SizedBox(height: 20),