push registration no longer depends on notification permission, reporting effective opt-in and os permission

lib/app.dart

@@ -48,11 +48,9 @@ class _AppState extends State<App> with WidgetsBindingObserver {
   int _knownTotalTabs = 1;
   int _lastTabIndex = 0;
   bool _userOnLastTab = false;
-  DateTime? _lastTelemetryAt;
 
   static const Duration _chatListActiveInterval = Duration(seconds: 15);
   static const Duration _chatListIdleInterval = Duration(seconds: 60);
-  static const Duration _telemetryInterval = Duration(minutes: 15);
 
   void _onTabControllerChanged() {
     final newIndex = Main.bottomNavigator.index;
@@ -81,15 +79,8 @@ class _AppState extends State<App> with WidgetsBindingObserver {
     }
   }
 
-  // Wall-clock throttle rather than Debouncer.throttle: a Timer does not tick
-  // reliably while the app is suspended, so the window would still be open on
-  // the resume it is supposed to let through.
   void _reportTelemetry() {
     if (!mounted) return;
-    final now = DateTime.now();
-    final last = _lastTelemetryAt;
-    if (last != null && now.difference(last) < _telemetryInterval) return;
-    _lastTelemetryAt = now;
     TelemetryHeartbeat.report(
       notificationsEnabled: context
           .read<SettingsCubit>()