feat(ui): Log Visualizer overlay reachable from a clickable footer log line

src/ClaudeDo.Ui/Views/Modals/LogVisualizerView.axaml.cs

@@ -0,0 +1,10 @@
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace ClaudeDo.Ui.Views.Modals;
+
+public partial class LogVisualizerView : Window
+{
+    public LogVisualizerView() => InitializeComponent();
+    private void InitializeComponent() => AvaloniaXamlLoader.Load(this);
+}