feat(daily-prep): add DailyPrepMaxTasks editor to Prime Claude settings

src/ClaudeDo.Ui/ViewModels/Modals/Settings/PrimeClaudeTabViewModel.cs

@@ -10,6 +10,8 @@ public sealed partial class PrimeClaudeTabViewModel : ViewModelBase
     private readonly IPrimeScheduleApi _api;
     private readonly HashSet<Guid> _initialIds = new();
 
+    [ObservableProperty] private int _dailyPrepMaxTasks = 5;
+
     public ObservableCollection<PrimeScheduleRowViewModel> Rows { get; } = new();
 
     public PrimeClaudeTabViewModel(IPrimeScheduleApi api) => _api = api;