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/InfiniteBuilding/InfiniteBuildingData.cs

@@ -1,4 +1,4 @@
-using asap.core;
+using asap.core;
 using cfg;
 using GameCore;
 using System.Collections.Generic;
@@ -6,6 +6,8 @@ using UnityEngine;
 
 public class InfiniteBuildingData
 {
+    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+
     public int Lvl, Step, StepLvl = 1, LastHangingBlock = -1;
     public List<BlockRecord> Record = new List<BlockRecord>();
     // private readonly TbConstructionUnits BlocksTable = GContext.container.Resolve<Tables>().TbConstructionUnits;
@@ -64,7 +66,7 @@ public class InfiniteBuildingData
         //Debug.Log("Upload!!!!!!!!!!!!!!");
         //Debug.Log(s);
         GContext.container.Resolve<PlayerData>().InfiniteBuildingData = s;
-        PlayFabMgr.Instance.UpdateUserDataValue("InfiniteBuildingData", s);
+        saveStore.Write("InfiniteBuildingData", s).RequireAccepted();
     }
 
     public void DownloadData(string s)