feat: complete legacy UI and playout parity migration

tests/MBN_STOCK_WEBVIEW.LegacyWeb.Tests/LegacyCloseConfirmationNativeContractTests.cs

@@ -0,0 +1,60 @@
+namespace MBN_STOCK_WEBVIEW.LegacyWeb.Tests;
+
+public sealed class LegacyCloseConfirmationNativeContractTests
+{
+    private static readonly string RepositoryRoot = FindRepositoryRoot();
+    private static readonly string AppRoot = Path.Combine(
+        RepositoryRoot,
+        "src",
+        "MBN_STOCK_WEBVIEW.LegacyParityApp");
+    private static readonly string Window = File.ReadAllText(
+        Path.Combine(AppRoot, "MainWindow.xaml.cs"));
+    private static readonly string Confirmation = File.ReadAllText(
+        Path.Combine(AppRoot, "MainWindow.CloseConfirmation.cs"));
+
+    [Fact]
+    public void SystemCloseRequiresExplicitDefaultCancelConfirmation()
+    {
+        Assert.Contains("EnsureCloseConfirmationAttached();", Window,
+            StringComparison.Ordinal);
+        Assert.Contains("appWindow.Closing += OnAppWindowClosing", Confirmation,
+            StringComparison.Ordinal);
+        Assert.Contains("args.Cancel = true", Confirmation, StringComparison.Ordinal);
+        Assert.Contains("DefaultButton = ContentDialogButton.Close", Confirmation,
+            StringComparison.Ordinal);
+        Assert.Contains("PrimaryButtonText = \"종료\"", Confirmation,
+            StringComparison.Ordinal);
+        Assert.Contains("CloseButtonText = \"취소\"", Confirmation,
+            StringComparison.Ordinal);
+        Assert.Contains("Interlocked.Exchange(ref _closeConfirmed, 1);", Confirmation,
+            StringComparison.Ordinal);
+        Assert.Contains("DetachCloseConfirmation();", Window, StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public void ClosingNeverInventsAnAutomaticPlayoutCommand()
+    {
+        Assert.Contains("종료 과정에서는 TAKE OUT을 자동 실행하지 않습니다", Confirmation,
+            StringComparison.Ordinal);
+        Assert.DoesNotContain("TakeOutAsync", Confirmation, StringComparison.Ordinal);
+        Assert.DoesNotContain("StopAll", Confirmation, StringComparison.Ordinal);
+        Assert.DoesNotContain("ExecuteOperatorPlayoutAsync", Confirmation,
+            StringComparison.Ordinal);
+    }
+
+    private static string FindRepositoryRoot()
+    {
+        var current = new DirectoryInfo(AppContext.BaseDirectory);
+        while (current is not null)
+        {
+            if (File.Exists(Path.Combine(current.FullName, "MBN_STOCK_WEBVIEW.sln")))
+            {
+                return current.FullName;
+            }
+
+            current = current.Parent;
+        }
+
+        throw new DirectoryNotFoundException("Repository root was not found.");
+    }
+}