feat(ui): add RepoImportItemViewModel

src/ClaudeDo.Ui/ViewModels/Modals/RepoImportItemViewModel.cs

@@ -0,0 +1,15 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace ClaudeDo.Ui.ViewModels.Modals;
+
+public sealed partial class RepoImportItemViewModel : ViewModelBase
+{
+    public string Name { get; init; } = "";
+    public string FullPath { get; init; } = "";
+
+    // True when a list already points at this path. Such rows are shown ticked + disabled.
+    public bool AlreadyAdded { get; init; }
+    public bool CanToggle => !AlreadyAdded;
+
+    [ObservableProperty] private bool _isChecked;
+}