Migrate remaining legacy operator workflows

MainWindow.xaml.cs

@@ -54,6 +54,8 @@ public sealed partial class MainWindow : Window
     public MainWindow()
     {
         InitializeComponent();
+        LogNativeOperatorStartup();
+        EnsureCloseConfirmationAttached();
         InitializeManualOperatorDataRuntime();
         InitializeDatabaseRuntime();
         InitializePlayoutRuntime();
@@ -100,6 +102,7 @@ public sealed partial class MainWindow : Window
     private async void OnRootLoaded(object sender, RoutedEventArgs e)
     {
         Root.Loaded -= OnRootLoaded;
+        EnsureCloseConfirmationAttached();
         ResizeWindow();
         await InitializeWebViewAsync();
 
@@ -230,6 +233,11 @@ public sealed partial class MainWindow : Window
             {
                 return;
             }
+            if (request is not null &&
+                TryHandleLegacyComparisonImportRequest(request.Type, request.Payload))
+            {
+                return;
+            }
 
             switch (request?.Type)
             {
@@ -371,6 +379,9 @@ public sealed partial class MainWindow : Window
                 case "request-manual-operator-data-status":
                     HandleManualOperatorStatusRequest(request.Payload);
                     break;
+                case "import-legacy-manual-operator-data":
+                    _ = HandleLegacyManualOperatorImportAsync(request.Payload);
+                    break;
                 case "request-manual-net-sell-data":
                     _ = HandleManualNetSellReadAsync(request.Payload);
                     break;
@@ -416,16 +427,6 @@ public sealed partial class MainWindow : Window
                         retryable: false,
                         outcomeUnknown: false);
                     break;
-                case "open-external" when request.Payload.ValueKind == JsonValueKind.Object:
-                    if (request.Payload.TryGetProperty("url", out var value) &&
-                        Uri.TryCreate(value.GetString(), UriKind.Absolute, out var uri))
-                    {
-                        _ = OpenExternalUriAsync(uri);
-                    }
-                    break;
-                case "reload":
-                    ReloadBrowserSafely();
-                    break;
             }
         }
         catch (JsonException exception)
@@ -2262,6 +2263,8 @@ public sealed partial class MainWindow : Window
         if (_databaseRuntime is null)
         {
             var message = _databaseInitializationError ?? "데이터베이스가 설정되지 않았습니다.";
+            ObserveNativeDatabaseState(DataSourceKind.Oracle, DatabaseHealthState.NotConfigured);
+            ObserveNativeDatabaseState(DataSourceKind.MariaDb, DatabaseHealthState.NotConfigured);
             PostDatabaseStatus(new[]
             {
                 CreateUnavailableStatus("oracle", message),
@@ -2274,6 +2277,10 @@ public sealed partial class MainWindow : Window
         {
             var statuses = await _databaseRuntime.HealthService
                 .CheckAllAsync(cancellationToken);
+            foreach (var status in statuses)
+            {
+                ObserveNativeDatabaseState(status.Source, status.State);
+            }
 
             PostDatabaseStatus(statuses.Select(status => new
             {
@@ -2292,6 +2299,8 @@ public sealed partial class MainWindow : Window
         }
         catch
         {
+            ObserveNativeDatabaseState(DataSourceKind.Oracle, DatabaseHealthState.Unhealthy);
+            ObserveNativeDatabaseState(DataSourceKind.MariaDb, DatabaseHealthState.Unhealthy);
             PostDatabaseStatus(new[]
             {
                 CreateUnavailableStatus("oracle", "Oracle 상태 확인에 실패했습니다."),
@@ -2335,6 +2344,7 @@ public sealed partial class MainWindow : Window
         CancelRequest(Volatile.Read(ref _namedPlaylistReadCancellation));
         CancelRequest(Volatile.Read(ref _namedPlaylistWriteCancellation));
         CancelRequest(Volatile.Read(ref _playlistPagePlanCancellation));
+        CancelRequest(Volatile.Read(ref _legacyComparisonImportCancellation));
         CancelOperatorCatalogReadsForPlayout();
         CancelManualFinancialReadsForPlayout();
     }
@@ -2579,6 +2589,7 @@ public sealed partial class MainWindow : Window
         InvalidateOperatorCatalogBrowserRequests();
         InvalidateManualOperatorBrowserRequests();
         InvalidateManualFinancialBrowserRequests();
+        InvalidateLegacyComparisonImportRequest();
         if (Volatile.Read(ref _playoutCommandInFlight) != 0)
         {
             // Navigation or a renderer failure destroys the JavaScript request
@@ -2589,6 +2600,8 @@ public sealed partial class MainWindow : Window
 
     private void OnClosed(object sender, WindowEventArgs args)
     {
+        DetachCloseConfirmation();
+        LogNativeOperatorShutdown();
         var wasWebViewReady = _webViewReady;
         _webViewReady = false;
         _lifetimeCancellation.Cancel();
@@ -2637,6 +2650,7 @@ public sealed partial class MainWindow : Window
         ShutdownOperatorCatalogRuntime();
         ShutdownManualFinancialRuntime();
         ShutdownManualOperatorDataRuntime();
+        ShutdownLegacyComparisonImportRuntime();
         DataQueryExecutor.Reset();
 
         if (!wasWebViewReady)