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/MiniBP/MiniBattlePassDataProvider.cs

@@ -1,4 +1,4 @@
-using asap.core;
+using asap.core;
 using cfg;
 using game;
 using GameCore;
@@ -53,6 +53,8 @@ public interface IMiniBattlePassDataProvider
 
 public class MiniBattlePassDataProvider : IMiniBattlePassDataProvider
 {
+    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+
     private Tables _tables;
     PlayerItemData _playerItemData;
     string newDataKey => "MiniBPKeyNew";
@@ -138,10 +140,11 @@ public class MiniBattlePassDataProvider : IMiniBattlePassDataProvider
 
     public MiniBattlePassRecord GetMiniBattlePassRecord(string key)
     {
+        if (!saveStore.IsCurrent) throw new System.InvalidOperationException("Expired battle pass session.");
         MiniBattlePassRecord Data;
         if (datas == null)
         {
-            string dataStr = PlayFabMgr.Instance.GetLocalData(newDataKey);
+            string dataStr = saveStore.Read(newDataKey).ValueOrThrow();
             //Debug.Log($"GetMiniBattlePassRecord: dataStr = {dataStr}");
             if (string.IsNullOrEmpty(dataStr))
             {
@@ -168,7 +171,7 @@ public class MiniBattlePassDataProvider : IMiniBattlePassDataProvider
     public void SetMiniBattlePassRecord(string key, MiniBattlePassRecord record)
     {
         datas[key] = record;
-        PlayFabMgr.Instance.UpdateUserDataValue(newDataKey, JsonConvert.SerializeObject(datas));
+        saveStore.Write(newDataKey, JsonConvert.SerializeObject(datas)).RequireAccepted();
     }
 }
 public class MiniBattlePassProgressInfo