feat(upserver): 保存M2客户端KV迁移至本人统计写检查点

保存独立KV用户服务、固定会话存档与原业务接线，以及C3d资料缓存和C3e本人统计写。
保留原PF/AGG路线、业务公式和时序；榜单读取、好友资料、公告、匹配及首场景闸仍待完成。

验证：ServiceHost两条件各33组646断言；Unity CLI Loop编译0错误269警告。
包含相关方案、评审裁决、测试及状态文档。未操作服务器、正式账号或打包。

Client/Assets/Scripts/SubBoostrap.cs

@@ -1,4 +1,4 @@
-
+
 using AppsFlyerSDK;
 using asap.core;
 using asap.core.common;
@@ -24,10 +24,22 @@ using UnityEngine.Rendering.Universal;
 
 public class SubBoostrap
 {
+    internal static game.PlayerDataStorage.PlayerKVRuntimeSelection RuntimeSelection { get; private set; }
 
-    public static async System.Threading.Tasks.Task RegisterServices(GameObject rootCtxGo)
+    public static async System.Threading.Tasks.Task RegisterServices(GameObject rootCtxGo, IConfig config)
     {
+        if(config==null) throw new ArgumentNullException(nameof(config));
+#if AGG
+        const bool aggBuild=true;
+#else
+        const bool aggBuild=false;
+#endif
+        var selection=game.PlayerDataStorage.PlayerKVRuntimeSelection.Capture(
+            config.Get<string>("SaveBackend","playfab"),
+            config.Get<string>(GConstant.K_Event_API_URL,game.Account.S101AccountSession.DefaultApiUrl),aggBuild);
+        RuntimeSelection=selection;
         var container = GContext.container;
+        container.RegisterInstance(selection);
         VibrationController vibrationController = new VibrationController();
         vibrationController.Init();
         container.RegisterInstance(vibrationController);
@@ -88,7 +100,7 @@ public class SubBoostrap
 #if UNITY_EDITOR && !SERVICE_HOST
         game.PlayerDataStorage.PlayerKVGameplayLoop.BeforeBootstrap();
 #endif
-        rootCtxGo.AddComponent<PlayFabMgr>();
+        if(!selection.IsKV) rootCtxGo.AddComponent<PlayFabMgr>();
         // TODO Replace DataCenter with seprated data class
         // Create();
         // -----------------------------------------
@@ -118,7 +130,7 @@ public class SubBoostrap
         GContext.container.Register<IRTService, SignalRService>().AsSingleton();
         GContext.container.RegisterInstance(new AvatarService());
 
-        var settings = new DefaultSettingService();
+        var settings = new DefaultSettingService(RuntimeSelection?.IsKV == true);
         settings.Init(tables);
         GContext.container.RegisterInstance<ISettingService>(settings);
         GameCore.LocalizationMgr.Init();
@@ -363,6 +375,21 @@ public class InternalEditorBoost
     }
     private async Task Init()
     {
+        var selection = GContext.container.Resolve<game.PlayerDataStorage.PlayerKVRuntimeSelection>();
+        if (selection == null)
+        {
+            var startupConfig = GContext.container.Resolve<IConfig>();
+            var backend = startupConfig?.Get<string>("SaveBackend", "playfab");
+            if (!string.Equals(backend, "playfab", StringComparison.Ordinal))
+                throw new InvalidOperationException("Editor direct scene boot only supports playfab; KV requires RegisterServices.");
+            // Editor direct scene boot is PF-only; KV and kv-loop must use RegisterServices.
+            selection = game.PlayerDataStorage.PlayerKVRuntimeSelection.Capture("playfab", null, false);
+            GContext.container.RegisterInstance(selection);
+            if (!ReferenceEquals(GContext.container.Resolve<game.PlayerDataStorage.PlayerKVRuntimeSelection>(), selection))
+                throw new InvalidOperationException("Editor backend selection registration failed.");
+        }
+        if (selection.IsKV)
+            throw new InvalidOperationException("Editor direct scene boot cannot reuse a KV selection.");
         var tables = await cfg.Tables.Init(x => { Debug.Log(x); });
         GContext.container.RegisterInstance(tables);
         GContext.container.Register<IFaceUIService, FaceUIService>().AsSingleton();
@@ -376,6 +403,7 @@ public class InternalEditorBoost
 
         using (var scope = GContext.container.InjectionScope())
         {
+            GContext.container.Register<game.PlayerDataStorage.IPlayerSaveStore, game.PlayerDataStorage.PlayFabPlayerSaveStore>().AsSingleton();
             // IAdsService 在 AfterAssetUpdate 中手动注册并调用 Init()，此处不再重复注册
             GContext.container.Register<PlayerFishData>().AsSingleton();
             GContext.container.Register<PlayerItemData>().AsSingleton();
@@ -421,7 +449,7 @@ public class InternalEditorBoost
             GContext.container.Register<Activity.ActivityScopeManager>().AsSingleton();
             GContext.container.Register<TimeRefreshManager>().AsSingleton();
         }
-        var settings = new DefaultSettingService();
+        var settings = new DefaultSettingService(selection.IsKV);
         settings.Init(tables);
         GContext.container.RegisterInstance<ISettingService>(settings);
         GameCore.LocalizationMgr.Init();