feat(battle-engine): final type-frontier residual (Story/Title/Friend stubs, SDK anchors, Unity AndroidJavaObject/WebCamTexture)

Clears the last CS0246/CS0234 type frontier; per F3 this unmasks the AI-subsystem
member bodies (~9k member-level errors) -- next grind is extension copies + god-object
member growth.

SVSim.BattleEngine/Shim/View/StoryTitleStubs.cs

@@ -0,0 +1,33 @@
+// AUTHORED SHIM (not copied). Final M1 residual: non-battle Story chapter-selection /
+// Title / Friend / RoomMatch types swept into the closure but never driven headless,
+// plus the namespace anchors their `using` directives target. Empty stubs (no copied
+// type inherits them); members would unmask only if a battle path touched them.
+
+namespace Wizard.Story
+{
+    public enum StoryEntranceType { None, MainStory, LimitedStory, EventStory, AllStory }
+}
+
+namespace Wizard.Story.ChapterSelection
+{
+    public class CommonPrefabContainer { }
+    public class TitlePanelBase { }
+}
+
+namespace Wizard.Story.ChapterSelection.SelectionProcessing.Main
+{
+    // Parallel to the BattleResult submodule (already shimmed); some copied files
+    // `using` this Main module and reference these unqualified.
+    public interface IProcessing { }
+    public class Parameter { }
+}
+
+namespace Wizard.UIFriend { public class Friend { public class PlayerData { } } }
+namespace Wizard.Title { public class GameSetup { } }
+namespace Wizard.RoomMatch { public class Player { } }
+
+// ---- namespace anchors (referenced via `using`) ----
+namespace Wizard.Scripts.Network.Task.ItemAcquireHistory { internal class _ShimAnchor { } }
+namespace Wizard.UI.Profile { internal class _ShimAnchor { } }
+namespace Wizard.UI.ReportToManagement { internal class _ShimAnchor { } }
+namespace Wizard.Battle.Tutorial { internal class _ShimAnchor { } }