feat: pre job: change events to routed events.

src/Ursa/EventArgs/ResultEventArgs.cs

@@ -0,0 +1,18 @@
+using Avalonia.Interactivity;
+
+namespace Ursa.EventArgs;
+
+public class ResultEventArgs: RoutedEventArgs
+{
+    public object? Result { get; set; }
+    
+    public ResultEventArgs(object? result)
+    {
+        Result = result;
+    }
+    
+    public ResultEventArgs(RoutedEvent routedEvent, object? result): base(routedEvent)
+    {
+        Result = result;
+    }
+}