implemented an E2E-encrypted Nextcloud push-v2 notification system with support for RSA decryption and signature verification; introduced an iOS Notification Service Extension and native AppDelegate handlers for Talk actions (inline reply and mark-as-read); replaced the legacy notification registration with a new lifecycle managing app passwords and secure keypair storage; added background message handling with tray synchronization and a test notification utility in the settings.

lib/storage/notification_settings.dart

@@ -4,13 +4,13 @@ part 'notification_settings.g.dart';
 
 @JsonSerializable()
 class NotificationSettings {
-  bool askUsageDismissed;
+  /// Whether push notifications are enabled. Defaults to `true` — the OS
+  /// permission prompt at login is now the gate, so there is no separate
+  /// in-app opt-in step anymore.
+  @JsonKey(defaultValue: true)
   bool enabled;
 
-  NotificationSettings({
-    required this.askUsageDismissed,
-    required this.enabled,
-  });
+  NotificationSettings({this.enabled = true});
 
   factory NotificationSettings.fromJson(Map<String, dynamic> json) =>
       _$NotificationSettingsFromJson(json);

lib/storage/notification_settings.g.dart

@@ -8,14 +8,8 @@ part of 'notification_settings.dart';
 
 NotificationSettings _$NotificationSettingsFromJson(
   Map<String, dynamic> json,
-) => NotificationSettings(
-  askUsageDismissed: json['askUsageDismissed'] as bool,
-  enabled: json['enabled'] as bool,
-);
+) => NotificationSettings(enabled: json['enabled'] as bool? ?? true);
 
 Map<String, dynamic> _$NotificationSettingsToJson(
   NotificationSettings instance,
-) => <String, dynamic>{
-  'askUsageDismissed': instance.askUsageDismissed,
-  'enabled': instance.enabled,
-};
+) => <String, dynamic>{'enabled': instance.enabled};