refactor(save): 移除 Showcase 快照持久化

Co-authored-by: Cursor <cursoragent@cursor.com>

Assets/Editor/PresentationSnapshotContractTests.cs

@@ -8,20 +8,17 @@ namespace AibisDream.SystemEditor.Tests
     public sealed class PresentationSnapshotContractTests
     {
         [Test]
-        public void Providers_UseDistinctStableIdsAndRestoreBeforeScreen()
+        public void PlayToolProvider_UsesStableIdAndRestoreBeforeScreen()
         {
-            var showcase = new ShowcaseSnapshotProvider();
             var playTool = new PlayToolSnapshotProvider();
             var screen = new ScreenSnapshotProvider();
 
-            Assert.That(showcase.SaveId, Is.EqualTo("showcase"));
             Assert.That(playTool.SaveId, Is.EqualTo("playTool"));
-            Assert.That(showcase.RestoreOrder, Is.LessThan(playTool.RestoreOrder));
             Assert.That(playTool.RestoreOrder, Is.LessThan(screen.RestoreOrder));
         }
 
         [Test]
-        public void PresentationSections_RoundTripThroughSnapshotJson()
+        public void PlayToolSection_RoundTripsThroughSnapshotJson()
         {
             var source = new SaveSnapshot();
             source.sections[SnapshotProviderIds.PlayTool] = new PlayToolSnapshotDto
@@ -31,27 +28,16 @@ namespace AibisDream.SystemEditor.Tests
                 isFullScreenVisible = true,
                 fullScreenPicName = "教室"
             };
-            source.sections[SnapshotProviderIds.Showcase] = new ShowcaseSnapshotDto
-            {
-                displayMode = nameof(ShowcaseDisplayMode.Small),
-                picName = "D2S轱辘",
-                usesSplitLayers = true
-            };
 
             var json = JsonConvert.SerializeObject(source);
             var restored = JsonConvert.DeserializeObject<SaveSnapshot>(json);
             var playTool = ((JObject)restored.sections[SnapshotProviderIds.PlayTool])
                 .ToObject<PlayToolSnapshotDto>();
-            var showcase = ((JObject)restored.sections[SnapshotProviderIds.Showcase])
-                .ToObject<ShowcaseSnapshotDto>();
 
             Assert.That(playTool.isObjVisible, Is.True);
             Assert.That(playTool.objPicName, Is.EqualTo("证物"));
             Assert.That(playTool.isFullScreenVisible, Is.True);
             Assert.That(playTool.fullScreenPicName, Is.EqualTo("教室"));
-            Assert.That(showcase.displayMode, Is.EqualTo(nameof(ShowcaseDisplayMode.Small)));
-            Assert.That(showcase.picName, Is.EqualTo("D2S轱辘"));
-            Assert.That(showcase.usesSplitLayers, Is.True);
             Assert.That(restored.schemaVersion, Is.EqualTo(1));
         }
 
@@ -63,7 +49,6 @@ namespace AibisDream.SystemEditor.Tests
 
             Assert.That(restored.schemaVersion, Is.EqualTo(SaveSnapshotSchema.CurrentVersion));
             Assert.That(restored.sections.ContainsKey(SnapshotProviderIds.PlayTool), Is.False);
-            Assert.That(restored.sections.ContainsKey(SnapshotProviderIds.Showcase), Is.False);
         }
     }
 }