port(m1): wave 6g — CS1061 member cluster (304->236)

- Friend.PlayerData full-surface generated (18 members) + hand stub -> partial.
- Wizard.RoomMatch.Player: 7 friend-info props (ViewerId/Name/Rank/Emblem/Degree/Country/IsFriend).
- GameMgr: HasAuthAdmin, ChangeAspectRatio(float), Update().
- Cute.SceneManager: ChangeScene overloads + SceneChangeParameter (+SceneChangeParameter stub).
- UnityEngine.SceneManagement.SceneManager + Scene; RedShellSDK.RedShellSDK statics.
- Packet.Attachments; Vector2.Dot/Angle/Normalize.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

SVSim.BattleEngine/Shim/External/LooseEnds.cs

@@ -133,7 +133,17 @@ namespace Facebook.Unity
         public static void LogOut() { }
     }
 }
-namespace RedShellSDK { internal class _ShimAnchor { } }
+namespace RedShellSDK
+{
+    public static class RedShellSDK
+    {
+        public static void SetApiKey(string apiKey) { }
+        public static void SetUserId(string userId) { }
+        public static void SetVerboseLogs(bool verbose) { }
+        public static void MarkConversion() { }
+        public static void LogEvent(string type) { }
+    }
+}
 namespace ZXing
 {
     public enum BarcodeFormat { QR_CODE, AZTEC, CODE_128, EAN_13 }