Extend issue #422 TrayToolTip suppression to AppDomain handler

The fix in 562269f added IsTrayToolTipCrash() to OnDispatcherUnhandledException
in both apps, but the same race in Hardcodet.NotifyIcon.Wpf can also escape to
OnUnhandledException (AppDomain) — observed today when exiting via the tray
context menu. The Dispatcher's exception hooks tear down before the tray
library finishes processing late tooltip-hide messages, so the exception
arrives at AppDomain with no suppression and the user sees a Fatal Error
dialog despite the underlying crash being harmless.

Mirror the same IsTrayToolTipCrash() check in OnUnhandledException for both
Lite and Dashboard. Logs a Warn and returns without showing the dialog.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: erikdarlingdata

Dashboard/App.xaml.cs

@@ -89,6 +89,16 @@ protected override void OnExit(ExitEventArgs e)
         private void OnUnhandledException(object sender, UnhandledExceptionEventArgs e)
         {
             var exception = e.ExceptionObject as Exception;
+
+            /* Silently swallow Hardcodet TrayToolTip race condition (issue #422) when it
+               escapes the Dispatcher path — happens during tray-Exit shutdown when the
+               Dispatcher's exception hooks are torn down before the tray library finishes. */
+            if (exception != null && IsTrayToolTipCrash(exception))
+            {
+                Logger.Warning("Suppressed Hardcodet TrayToolTip crash (issue #422) in AppDomain handler");
+                return;
+            }
+
             Logger.Fatal("Unhandled AppDomain Exception", exception ?? new Exception("Unknown exception"));
 
             if (e.IsTerminating)

Lite/App.xaml.cs

@@ -455,6 +455,17 @@ public static void LoadAlertSettings()
     private void OnUnhandledException(object sender, UnhandledExceptionEventArgs e)
     {
         var exception = e.ExceptionObject as Exception;
+
+        /* Silently swallow Hardcodet TrayToolTip race condition (issue #422) when it
+           escapes the Dispatcher path — happens during tray-Exit shutdown when the
+           Dispatcher's exception hooks are torn down before the tray library finishes. */
+        if (exception != null && IsTrayToolTipCrash(exception))
+        {
+            AppLogger.Warn("AppDomain", "Suppressed Hardcodet TrayToolTip crash (issue #422)");
+            AppLogger.Flush();
+            return;
+        }
+
         AppLogger.Error("AppDomain", "Unhandled exception (terminating=" + e.IsTerminating + ")", exception);
         AppLogger.Flush();