feat(ui): pulse, hover, modal, and row-add animations

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/ClaudeDo.Ui/ViewModels/Islands/DetailsIslandViewModel.cs

@@ -26,6 +26,9 @@ public sealed partial class DetailsIslandViewModel : ViewModelBase
 
     // Agent strip fields
     [ObservableProperty] private string _agentStatusLabel = "Idle";
+    public bool IsRunning => AgentStatusLabel == "Running";
+
+    partial void OnAgentStatusLabelChanged(string value) => OnPropertyChanged(nameof(IsRunning));
     [ObservableProperty] private string? _model;
     [ObservableProperty] private string? _worktreePath;
     [ObservableProperty] private string? _branchLine;