Fix false-positive error reports

lib/bootstrap.dart

@@ -10,6 +10,7 @@ import 'package:hiddify/core/prefs/prefs.dart';
 import 'package:hiddify/data/data_providers.dart';
 import 'package:hiddify/data/repository/app_repository_impl.dart';
 import 'package:hiddify/domain/environment.dart';
+import 'package:hiddify/domain/failures.dart';
 import 'package:hiddify/features/common/active_profile/active_profile_notifier.dart';
 import 'package:hiddify/features/common/window/window_controller.dart';
 import 'package:hiddify/features/system_tray/system_tray.dart';
@@ -66,6 +67,12 @@ Future<void> lazyBootstrap(
       options.tracesSampleRate = 0.25;
       options.enableUserInteractionTracing = true;
       options.addIntegration(sentryLogger);
+      options.beforeSend = (event, {hint}) {
+        return switch (event.throwable) {
+          ExpectedException _ => null,
+          _ => event,
+        };
+      };
     },
     appRunner: () => _lazyBootstrap(widgetsBinding, container, env),
   );

lib/domain/core_service_failure.dart

@@ -13,6 +13,7 @@ sealed class CoreServiceFailure with _$CoreServiceFailure, Failure {
     StackTrace stackTrace,
   ) = UnexpectedCoreServiceFailure;
 
+  @With<ExpectedException>()
   const factory CoreServiceFailure.serviceNotRunning([String? message]) =
       CoreServiceNotRunning;
 

lib/domain/failures.dart

@@ -5,6 +5,9 @@ mixin Failure {
   ({String type, String? message}) present(TranslationsEn t);
 }
 
+/// failures ignored by analytics service etc.
+mixin ExpectedException {}
+
 extension ErrorPresenter on TranslationsEn {
   String? _errorToMessage(Object error) {
     switch (error) {