feat: add configurable operator appearance and layout

tests/MBN_STOCK_WEBVIEW.LegacyWeb.Tests/LegacyOperatorSettingsNativeContractTests.cs

@@ -102,10 +102,35 @@ public sealed class LegacyOperatorSettingsNativeContractTests
             StringComparison.Ordinal);
         Assert.Contains("LegacySetOperatorNavigationExpandedIntent", Playout,
             StringComparison.Ordinal);
+        Assert.Contains("LegacySetOperatorAppearanceIntent", Playout,
+            StringComparison.Ordinal);
         Assert.Contains("ReconcileRejectedOperatorSettingsIntent(", process,
             StringComparison.Ordinal);
     }
 
+    [Fact]
+    public void AppearanceIntentIsPersistedRoutedAndProjectedAsOneClosedUpdate()
+    {
+        Assert.Contains(
+            "case LegacySetOperatorAppearanceIntent appearance:",
+            Settings,
+            StringComparison.Ordinal);
+        Assert.Contains("ColorTheme = appearance.ColorTheme", Settings,
+            StringComparison.Ordinal);
+        Assert.Contains("ViewMode = appearance.ViewMode", Settings,
+            StringComparison.Ordinal);
+        Assert.Contains("StartWorkspace = appearance.StartWorkspace", Settings,
+            StringComparison.Ordinal);
+        Assert.Contains("_operatorSettings.ColorTheme", Settings,
+            StringComparison.Ordinal);
+        Assert.Contains("_operatorSettings.ViewMode", Settings,
+            StringComparison.Ordinal);
+        Assert.Contains("_operatorSettings.StartWorkspace", Settings,
+            StringComparison.Ordinal);
+        Assert.Contains("LegacySetOperatorAppearanceIntent", Window,
+            StringComparison.Ordinal);
+    }
+
     [Fact]
     public void SettingsStateIsProjectedWithoutPublishingFullNativePaths()
     {
@@ -132,6 +157,28 @@ public sealed class LegacyOperatorSettingsNativeContractTests
             StringComparison.Ordinal);
     }
 
+    [Fact]
+    public void SettingsUsesConciseRoutineStatusCopy()
+    {
+        var cancelledPicker = Slice(
+            Settings,
+            "if (selected is null)",
+            "cancellationToken.ThrowIfCancellationRequested();");
+
+        Assert.DoesNotContain(
+            "SetOperatorSettingsMessage",
+            cancelledPicker,
+            StringComparison.Ordinal);
+        Assert.Contains("\"저장됨\"", Settings, StringComparison.Ordinal);
+        Assert.Contains("\"저장됨 · 재시작 필요\"", Settings, StringComparison.Ordinal);
+        Assert.Contains("\"초기화됨 · 재시작 필요\"", Settings, StringComparison.Ordinal);
+        Assert.Contains("\"앱 기본값\"", Settings, StringComparison.Ordinal);
+        Assert.Contains("\"자동\"", Settings, StringComparison.Ordinal);
+        Assert.Contains("\"사용 가능\"", Settings, StringComparison.Ordinal);
+        Assert.DoesNotContain("외부 영상", Settings, StringComparison.Ordinal);
+        Assert.DoesNotContain("핵심 자산 확인됨", Settings, StringComparison.Ordinal);
+    }
+
     private static string Slice(string value, string start, string end)
     {
         var startIndex = RequiredIndex(value, start);