feat: align legacy operator and playout behavior

src/MBN_STOCK_WEBVIEW.LegacyParityApp/MainWindow.xaml.cs

@@ -24,6 +24,18 @@ public sealed partial class MainWindow : Window
     {
         InitializeComponent();
         EnsureCloseConfirmationAttached();
+        var localApplicationData = Environment.GetFolderPath(
+            Environment.SpecialFolder.LocalApplicationData);
+        var runtimeCutMenuOverridePath = string.IsNullOrWhiteSpace(localApplicationData)
+            ? null
+            : Path.Combine(
+                localApplicationData,
+                "MBN_STOCK_WEBVIEW",
+                "Res",
+                "종목.ini");
+        var cutMenuComposition = LegacyRuntimeStockCutMenuLoader.ResolveFromCandidates(
+            runtimeCutMenuOverridePath,
+            AppContext.BaseDirectory);
 
         ILegacyStockLookup stockLookup;
         IIndustrySelectionService industrySelectionService;
@@ -153,11 +165,16 @@ public sealed partial class MainWindow : Window
                 expertCatalogPersistenceService,
                 manualFinancialStockSearchService,
                 stockMasterIdentityValidationService,
-                operatorCatalogSchemaValidationService));
+                operatorCatalogSchemaValidationService),
+            cutRows: cutMenuComposition.Rows);
         if (initializationError is not null)
         {
             _controller.ReportError(initializationError);
         }
+        else if (cutMenuComposition.WarningMessage is { } cutMenuWarning)
+        {
+            _controller.ReportWarning(cutMenuWarning);
+        }
 
         InitializePlayoutRuntime();
 
@@ -470,6 +487,11 @@ public sealed partial class MainWindow : Window
                 pointer.X,
                 pointer.Y,
                 pointer.TimestampMilliseconds),
+            LegacyCutKeyDownIntent key => _controller.CutKeyDown(
+                key.Key,
+                key.Control,
+                key.Shift),
+            LegacyClearCutSelectionIntent => _controller.ClearCutSelection(),
             LegacyDropSelectedCutsIntent => _controller.DropSelectedCutsOnPlaylist(),
             LegacySetPlaylistEnabledIntent enabled =>
                 _controller.SetPlaylistRowEnabled(enabled.RowId, enabled.Enabled),
@@ -480,6 +502,8 @@ public sealed partial class MainWindow : Window
                     selection.RowId,
                     selection.Control,
                     selection.Shift),
+            LegacyActivatePlaylistRowIntent activation =>
+                _controller.ActivatePlaylistRow(activation.RowId),
             LegacyMoveSelectedPlaylistRowsIntent move =>
                 _controller.MoveSelectedPlaylistRows(move.Direction),
             LegacyReorderPlaylistRowsIntent reorder =>
@@ -494,7 +518,7 @@ public sealed partial class MainWindow : Window
             LegacyToggleActivePlaylistEnabledIntent =>
                 _controller.ToggleActivePlaylistRowEnabled(),
             LegacySelectPlaylistBoundaryIntent boundary =>
-                _controller.SelectPlaylistBoundary(boundary.Last),
+                SelectPlaylistBoundaryAndStopRefresh(boundary.Last),
             LegacySelectTabIntent tab =>
                 await _controller.SelectTabAsync(tab.TabId, cancellationToken),
             LegacySwapTabsIntent tabs =>