refactor(kv): 整理存档接线并清理迁移冗余实现

Client/Assets/Editor/KVGameLoadValidation.cs

@@ -1,31 +0,0 @@
-#if UNITY_EDITOR
-using System;
-using System.Linq;
-using System.Reflection;
-using System.Threading.Tasks;
-
-public static class KVGameLoadValidation
-{
-    // Fixed assembly/type/method and explicit case allow-list; no arbitrary reflection arguments.
-    public static async Task<string> RunAsync(string caseId)
-    {
-        if (caseId != "M08-M23" && caseId != "M21-M22-M24" && caseId != "M09-M10-M12" && caseId != "M14" && caseId != "M07" && caseId != "M20-M21-M22-M24-M28-M29" && caseId != "M16-M17" && caseId != "M06-M13" && caseId != "M15-M26-M27" && caseId != "M30" && caseId != "M19" && caseId != "M11" && caseId != "M25" && caseId != "M01-M02-M21-M22-M24" && caseId != "M04-M21-M22-M24" && caseId != "M05-M21-M22-M24" && caseId != "M03" && caseId != "M18" && caseId != "M31" && caseId != "B2-20" && caseId != "M01-Immediate" && caseId != "Module02-OriginalLoad" && caseId != "M03B-LoginRetry" && caseId != "M03B-LoginRetry-Cleanup" && caseId != "M03C-CustomId" && caseId != "M03D-Destroy")
-        {
-            if (caseId != "P6A-InitializationLastLogin" && caseId != "P6B-OrdinarySave" && caseId != "P6B-OrdinarySave-Cleanup" && caseId != "P8A-Leaderboard" && caseId != "P8B-Friends" && caseId != "P8C-TitleNews" && caseId != "P8C-TitleNews-Cleanup" && caseId != "P8D-Matchmaking" && caseId != "P12A-OrdinaryCadence" && caseId != "P12B-FormalReadAdapters" && caseId != "P12C-StartupSubscriptions" && caseId != "P14-FormalRealtime" && caseId != "P15-FormalMatchmaking" && caseId != "P15-FormalMatchState")
-            {
-                throw new ArgumentException("Unknown fixed validation case.");
-            }
-        }
-    
-        var assembly = AppDomain.CurrentDomain.GetAssemblies().Single(a => a.GetName().Name == "HotUpdate");
-        var type = assembly.GetType("game.PlayerDataStorage.PlayerKVEditorValidationHost", true);
-        var method = type.GetMethod("RunAsync", BindingFlags.Static | BindingFlags.NonPublic, null, new[] { typeof(string) }, null);
-        if (method == null)
-        {
-            throw new InvalidOperationException("Validation entry unavailable.");
-        }
-    
-        return await (Task<string>)method.Invoke(null, new object[] { caseId });
-    }
-}
-#endif

Client/Assets/Editor/KVGameLoadValidation.cs.meta

@@ -1,2 +0,0 @@
-fileFormatVersion: 2
-guid: 4ce05f2f22c2492f8a3c51a82a208647

Client/Assets/Editor/KVGameplayLoopSetup.cs

@@ -1,74 +0,0 @@
-#if UNITY_EDITOR
-using System;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using Newtonsoft.Json;
-using UnityEditor;
-using UnityEngine;
-
-// Fixed CLI helpers; no arbitrary method names or process-marker deletion.
-public static class KVGameplayLoopSetup
-{
-    static string Root => Path.GetFullPath(Path.Combine(Application.dataPath,"../../CodexOutput/upserver/KVGameplayLoopTests"));
-    static Type Find(string name) => AppDomain.CurrentDomain.GetAssemblies().Select(a=>a.GetType("game.PlayerDataStorage."+name)).FirstOrDefault(t=>t!=null)
-        ?? throw new InvalidOperationException("Gameplay assembly not loaded.");
-    static object ReadProperty(Type type,string name) => type.GetProperty(name,BindingFlags.Static|BindingFlags.NonPublic)?.GetValue(null);
-
-    public static async System.Threading.Tasks.Task<string> RunValidationAsync(string caseId)
-    {
-        string methodName;
-        switch (caseId)
-        {
-            case "equipment-chain":
-                methodName = "VerifyEquipmentForEditorAsync";
-                break;
-            case "fishing-consume":
-                methodName = "VerifyFishingForEditorAsync";
-                break;
-            case "fishing-reward":
-                methodName = "VerifyFishingRewardForEditorAsync";
-                break;
-            case "fishing-original-reward":
-                methodName = "VerifyOriginalFishingRewardForEditorAsync";
-                break;
-            case "fishing-original-consume":
-                methodName = "VerifyOriginalFishingForEditorAsync";
-                break;
-            default:
-                throw new ArgumentException("Unknown fixed validation case.");
-        }
-        if(EditorApplication.isPlayingOrWillChangePlaymode || EditorApplication.isCompiling || EditorApplication.isUpdating)
-        {
-            throw new InvalidOperationException("Idle editor required.");
-        }
-        var method = Find("PlayerKVGameplayLoop").GetMethod(methodName, BindingFlags.Static | BindingFlags.NonPublic);
-        if (method == null)
-        {
-            throw new InvalidOperationException("Fixed equipment validation entry unavailable.");
-        }
-        return await (System.Threading.Tasks.Task<string>)method.Invoke(null,null);
-    }
-
-    public static string State()
-    {
-        var type=Find("PlayerKVGameplayLoop");
-        var history=Path.Combine(Root,"run-control");
-        return JsonConvert.SerializeObject(new{project=Application.dataPath,playing=EditorApplication.isPlaying,
-            enabled=ReadProperty(type,"Enabled"),ready=ReadProperty(type,"Ready"),error=ReadProperty(type,"Error"),run=ReadProperty(type,"RunPath"),
-            permitExists=File.Exists(Path.Combine(Root,"permit.json")),
-            processMarkers=Directory.Exists(history)?Directory.GetFiles(history,"*.claimed").Select(Path.GetFileName).OrderBy(x=>x).ToArray():Array.Empty<string>()});
-    }
-
-    public static string InspectPFBackup(string path)
-    {
-        if(EditorApplication.isPlayingOrWillChangePlaymode || EditorApplication.isCompiling || EditorApplication.isUpdating)
-            throw new InvalidOperationException("Idle editor required.");
-        var method=Find("PlayerKVGameplayLoop").GetMethod("InspectPFBackupForEditor",BindingFlags.Static|BindingFlags.NonPublic);
-        try { return (string)method.Invoke(null,new object[]{path}); }
-        catch(TargetInvocationException e) { throw e.InnerException ?? e; }
-    }
-
-
-}
-#endif

Client/Assets/Editor/KVGameplayLoopSetup.cs.meta

@@ -1,2 +0,0 @@
-fileFormatVersion: 2
-guid: ff2728a480374b609aaed9ea0742215e

Client/Assets/Editor/KVPromptStateValidation.cs

@@ -1,632 +0,0 @@
-#if UNITY_EDITOR
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Net;
-using System.Net.Http;
-using System.Reflection;
-using System.Runtime.ExceptionServices;
-using System.Threading;
-using System.Threading.Tasks;
-using game;
-using game.Account;
-using game.PlayerDataStorage;
-using Newtonsoft.Json;
-using UnityEditor;
-using UnityEngine;
-
-// Fixed B01 synthetic cases only. No global container replacement, permission UI or Play mode.
-public static class KVPromptStateValidation
-{
-    private static bool running;
-    private static object failedCleanup;
-    private static readonly BindingFlags PrivateInstance = BindingFlags.Instance | BindingFlags.NonPublic;
-
-    public static async Task<string> RunAsync(string caseId)
-    {
-        if ((caseId != "B01" && caseId != "CP3A" && caseId != "P6D") || EditorApplication.isPlayingOrWillChangePlaymode || running || failedCleanup != null)
-        {
-            throw new InvalidOperationException("B01 requires an idle Editor and completed prior cleanup.");
-        }
-        running = true;
-        var run = new FixedRun();
-        var staticField = typeof(RedPointManager).GetField("instance", BindingFlags.Static | BindingFlags.NonPublic);
-        object previous = null;
-        var isolated = false;
-        var errors = new List<Exception>();
-        string result = null;
-        try
-        {
-            previous = staticField.GetValue(null);
-            staticField.SetValue(null, new RedPointManager());
-            isolated = true;
-            result = caseId == "P6D" ? await run.ExecuteP6D() : caseId == "B01" ? await run.Execute() : await run.ExecuteCP3A();
-        }
-        catch (Exception ex)
-        {
-            errors.Add(ex);
-        }
-        finally
-        {
-            try
-            {
-                await run.Close();
-            }
-            catch (Exception ex)
-            {
-                failedCleanup = run;
-                errors.Add(ex);
-            }
-            try
-            {
-                if (isolated)
-                {
-                    staticField.SetValue(null, previous);
-                    if (!ReferenceEquals(previous, staticField.GetValue(null)))
-                    {
-                        throw new InvalidOperationException("Red point instance was not restored.");
-                    }
-                }
-            }
-            catch (Exception ex)
-            {
-                failedCleanup = run;
-                errors.Add(ex);
-            }
-            finally
-            {
-                running = false;
-            }
-        }
-        if (errors.Count != 0)
-        {
-            throw new AggregateException(errors);
-        }
-        var report = Newtonsoft.Json.Linq.JObject.Parse(result);
-        report["restored"] = true;
-        report["remainingTestObjects"] = 0;
-        return report.ToString(Formatting.None);
-    }
-
-    sealed class Handler : HttpMessageHandler
-    {
-        readonly Func<HttpRequestMessage, HttpResponseMessage> send;
-        internal Handler(Func<HttpRequestMessage, HttpResponseMessage> send) { this.send = send; }
-        protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage r, CancellationToken t) => Task.FromResult(send(r));
-    }
-    static HttpResponseMessage Json(object value) => new HttpResponseMessage(HttpStatusCode.OK)
-    { Content = new StringContent(JsonConvert.SerializeObject(value)) };
-
-    sealed class FixedRun
-    {
-        private readonly List<FixedRun> children = new List<FixedRun>();
-        private readonly List<Action> restoreFaults = new List<Action>();
-        readonly Uri api = new Uri("http://b01-editor.invalid/");
-        readonly string cache = Path.GetFullPath(Path.Combine(Application.dataPath,
-            "../../CodexOutput/upserver/B3BatchMigration/B01Tests/unity-runs", Guid.NewGuid().ToString("N")));
-        readonly List<S101AccountSession> sessions = new List<S101AccountSession>();
-        readonly List<GameObject> objects = new List<GameObject>();
-        PlayerKVGameSessionBridge bridge;
-        long epoch = 1;
-        int assertions, requests;
-        void Check(bool value, string label) { assertions++; if (!value) throw new InvalidOperationException("B01: " + label); }
-        static object Call(object target, string method, params object[] args)
-        {
-            try { return target.GetType().GetMethod(method, PrivateInstance | BindingFlags.Public).Invoke(target, args); }
-            catch (TargetInvocationException ex) { ExceptionDispatchInfo.Capture(ex.InnerException).Throw(); throw; }
-        }
-        static void Field(object target, string name, object value) => target.GetType().GetField(name, PrivateInstance).SetValue(target, value);
-        static T Bound<T>(PlayerKVGameSessionHandle handle) => (T)typeof(T).GetConstructor(PrivateInstance,
-            null, new[] { typeof(PlayerKVGameSessionHandle) }, null).Invoke(new object[] { handle });
-        void Reject(Action action)
-        {
-            try { action(); }
-            catch (InvalidOperationException) { assertions++; return; }
-            throw new InvalidOperationException("B01: expected owner rejection");
-        }
-        async Task<PlayerKVGameSessionHandle> Open()
-        {
-            var session = new S101AccountSession(api, jar => new Handler(r =>
-            {
-                Check(r.RequestUri == new Uri(api, "account/Login"), "synthetic login only");
-                jar.Add(api, new Cookie("sid", "101"));
-                return Json(new { state = 0, internalId = 101, newCreate = false,
-                    createTime = "2026-01-01T00:00:00Z", svrTime = "2026-01-01T00:00:00Z" });
-            }));
-            sessions.Add(session);
-            Check((await session.LoginAsync("101")).Success, "synthetic login");
-            var opened = await bridge.OpenAsync(session, cache, "101", api, epoch, e => e == epoch);
-            Check(opened.Success, "synthetic owner open");
-            return opened.Handle;
-        }
-        T Panel<T>() where T : Component
-        {
-            var go = new GameObject("B01-" + typeof(T).Name) { hideFlags = HideFlags.HideAndDontSave };
-            go.SetActive(false); objects.Add(go);
-            return go.AddComponent<T>();
-        }
-        internal async Task<string> Execute()
-        {
-            Func<CookieContainer, HttpMessageHandler> factory = jar => new Handler(r =>
-            {
-                Check(r.RequestUri == new Uri(api, "playerdata/Get"), "no write/no real transport");
-                requests++;
-                return Json(new { data = new Dictionary<string, string>() });
-            });
-            bridge = (PlayerKVGameSessionBridge)typeof(PlayerKVGameSessionBridge).GetConstructor(PrivateInstance,
-                null, new[] { typeof(Func<CookieContainer, HttpMessageHandler>), typeof(bool) }, null).Invoke(new object[] { factory, false });
-            var handle = await Open();
-            var settings = Bound<DefaultSettingService>(handle);
-            var club = Bound<ClubService>(handle);
-            Check(!settings.ShowNotice, "valid missing key");
-            settings.ShowNotice = true;
-            Check(settings.ShowNotice && requests == 1, "accepted local only");
-            var original = settings.GetType().GetProperty("LastPromptEdit", PrivateInstance).GetValue(settings);
-            settings.ShowNotice = true;
-            Check(ReferenceEquals(original, settings.GetType().GetProperty("LastPromptEdit", PrivateInstance).GetValue(settings)), "same value no duplicate");
-            // A fresh real ClubService retains its original initialized flag.
-            Check(club.IsOpenClubRed, "fresh real club retains original flag");
-            await bridge.CloseAsync();
-            Reject(() => settings.ShowNotice = false);
-            Reject(club.SetOpenClubRed);
-            Check(club.IsOpenClubRed, "stale real club preserves flag");
-
-            // Notification constructor validates the current owner. Create a fresh fixed instance, then revoke it.
-            epoch++;
-            var nextHandle = await Open();
-            var nextSettings = Bound<DefaultSettingService>(nextHandle);
-            var tables = new cfg.Tables(name => SimpleJSON.JSON.Parse(File.ReadAllText(
-                Path.Combine(Application.dataPath, "../../cfgData", name + ".json"))));
-            var notifications = (LocalNotificationService)typeof(LocalNotificationService).GetConstructor(PrivateInstance,
-                null, new[] { typeof(DefaultSettingService), typeof(cfg.Tables) }, null).Invoke(new object[] { nextSettings, tables });
-            var pendingInit = notifications.Init();
-            await bridge.CloseAsync();
-            try { await pendingInit; throw new InvalidOperationException("B01: stale init succeeded"); }
-            catch (InvalidOperationException ex) { Check(!ex.Message.Contains("stale init succeeded"), "stale Editor permission continuation rejected"); }
-
-            var grade = Panel<SettingNotificationsGradePopupPanel>();
-            Field(grade, "settings", nextSettings); Field(grade, "notifications", notifications);
-            var popup = Panel<SettingNotificationsPopupPanel>(); Field(popup, "notifications", notifications);
-            var settingPanel = Panel<SettingPopupPanel>(); Field(settingPanel, "settingService", nextSettings); Field(settingPanel, "notificationService", notifications);
-            var gift = Panel<GiftNoticePanel>(); Field(gift, "notificationService", notifications);
-            var social = Panel<FishingSocialPanel>(); Field(social, "_socialData", club);
-            var errors = new List<string>();
-            void Capture(string message, string stack, LogType type) { if (type == LogType.Error || type == LogType.Exception) errors.Add(message); }
-            Application.logMessageReceived += Capture;
-            try
-            {
-                Reject(() => Call(grade, "DestroyUI"));
-                Reject(() => Call(grade, "OnBtnOk"));
-                Reject(() => Call(popup, "OnBtnOk"));
-                Reject(() => Call(popup, "DestroyUI"));
-                Reject(() => Call(settingPanel, "OnToggleNotification", true));
-                Reject(() => Call(settingPanel, "OnToggleNotification", false));
-                Reject(() => Call(gift, "OnClickYES"));
-                Call(social, "Start");
-                Check(errors.Count == 1, "only unchanged social entry logs its owner rejection");
-                Check(errors.TrueForAll(e => e.Contains("ShowNotice owner=") || e.Contains("IsOpenClubRed owner=")), "no unexpected exception");
-                foreach (var go in objects) Check(go != null, "stale callback did not destroy another UI");
-            }
-            finally { Application.logMessageReceived -= Capture; }
-            Check(requests == 2, "read-only synthetic transport");
-            return JsonConvert.SerializeObject(new { success = true, assertions, requests, formalRequests = 0,
-                playing = EditorApplication.isPlaying, globalContainerChanged = false, caseId = "B01", cache });
-        }
-        internal async Task<string> ExecuteP6D()
-        {
-            foreach (var value in new[] { null, "0", "1", "" })
-            {
-                var fixture = new FixedRun();
-                children.Add(fixture);
-                await fixture.HealthyPrompt(value);
-            }
-            foreach (var club in new[] { false, true })
-            {
-                foreach (var stage in new[] { "BeforeWrite", "AfterReplace" })
-                {
-                    var fixture = new FixedRun();
-                    children.Add(fixture);
-                    await fixture.FaultPrompt(club, stage);
-                }
-                var revoked = new FixedRun();
-                children.Add(revoked);
-                await revoked.RevokedDuringPrompt(club);
-            }
-            var callback = new FixedRun();
-            children.Add(callback);
-            await callback.RevokedDuringClubCallback();
-            foreach (var fixture in children)
-            {
-                assertions += fixture.assertions;
-                requests += fixture.requests;
-            }
-            return JsonConvert.SerializeObject(new { success = true, caseId = "P6D", assertions,
-                cases = children.Count, requests, formalRequests = 0, playing = EditorApplication.isPlaying,
-                globalContainerChanged = false });
-        }
-
-        private async Task<PlayerKVGameSessionHandle> OpenPrompt()
-        {
-            Func<CookieContainer, HttpMessageHandler> factory = jar => new Handler(r =>
-            {
-                Check(r.RequestUri == new Uri(api, "playerdata/Get"), "P6D synthetic Get only");
-                requests++;
-                return Json(new { data = new Dictionary<string, string>() });
-            });
-            bridge = (PlayerKVGameSessionBridge)typeof(PlayerKVGameSessionBridge).GetConstructor(PrivateInstance,
-                null, new[] { typeof(Func<CookieContainer, HttpMessageHandler>), typeof(bool) }, null).Invoke(new object[] { factory, false });
-            return await Open();
-        }
-
-        private static PlayerKVEditResult Edit(object service)
-        {
-            return (PlayerKVEditResult)service.GetType().GetProperty("LastPromptEdit", PrivateInstance).GetValue(service);
-        }
-
-        private static bool? Cached(DefaultSettingService settings)
-        {
-            return (bool?)typeof(DefaultSettingService).GetField("_showNotice", PrivateInstance).GetValue(settings);
-        }
-
-        private sealed class RedProbe : IUIRedPoint
-        {
-            private readonly Action<bool> callback;
-            internal RedProbe(Action<bool> callback)
-            {
-                this.callback = callback;
-            }
-            public void SetRedPointState(bool state)
-            {
-                callback(state);
-            }
-        }
-
-        private void ObserveRed(Action<bool> callback)
-        {
-            RedPointManager.Instance.RemoveRedPoint(RedPointName.Home_Club);
-            RedPointManager.Instance.AddRedPoint(RedPointName.Home_Club, new RedProbe(callback));
-        }
-
-        private static Delegate FaultDelegate<T>(Action<string> callback)
-        {
-            return new Action<T>(stage => callback(stage.ToString()));
-        }
-
-        private void InjectFault(PlayerKVGameSessionHandle handle, Action<string> callback)
-        {
-            var owner = handle.GetType().GetProperty("Owner", PrivateInstance).GetValue(handle);
-            var state = owner.GetType().GetField("state", PrivateInstance).GetValue(owner);
-            var store = state.GetType().GetField("store", PrivateInstance).GetValue(state);
-            var field = store.GetType().GetField("fault", PrivateInstance);
-            var previous = field.GetValue(store);
-            var method = typeof(FixedRun).GetMethod("FaultDelegate", BindingFlags.Static | BindingFlags.NonPublic)
-                .MakeGenericMethod(field.FieldType.GetGenericArguments()[0]);
-            var fault = method.Invoke(null, new object[] { callback });
-            restoreFaults.Add(() => field.SetValue(store, previous));
-            field.SetValue(store, fault);
-            Check(ReferenceEquals(field.GetValue(store), fault), "actual cache fault installed");
-        }
-
-        private async Task HealthyPrompt(string initial)
-        {
-            var handle = await OpenPrompt();
-            if (initial != null)
-            {
-                Check(handle.Update("ShowNotice", initial).Accepted, "seed initial value");
-            }
-            var settings = Bound<DefaultSettingService>(handle);
-            var expected = initial == "1";
-            Check(settings.ShowNotice == expected, "first read follows original string comparison");
-            Check(handle.Update("ShowNotice", expected ? "0" : "1").Accepted, "other consumer updates actual cache");
-            Check(settings.ShowNotice == expected, "first-read nullable cache survives other consumer writes");
-            var fresh = Bound<DefaultSettingService>(handle);
-            var target = !expected;
-            var observedWrites = 0;
-            InjectFault(handle, stage =>
-            {
-                if (stage == "BeforeWrite")
-                {
-                    observedWrites++;
-                    Check(Cached(fresh) == target, "nullable cache assigned before actual disk write");
-                }
-            });
-            fresh.ShowNotice = target;
-            Check(Edit(fresh)?.Accepted == true && observedWrites == 1, "setter before getter writes even when stored value matches");
-            var receipt = Edit(fresh);
-            fresh.ShowNotice = target;
-            Check(ReferenceEquals(receipt, Edit(fresh)) && observedWrites == 1, "same cached value does not write");
-            target = !target;
-            fresh.ShowNotice = target;
-            Check(observedWrites == 2 && !ReferenceEquals(receipt, Edit(fresh)), "changed cached value writes");
-            RestoreFaults();
-
-            Check(handle.Update("IsOpenClubRed", "0").Accepted, "seed present club value");
-            var club = Bound<ClubService>(handle);
-            var calls = 0;
-            ObserveRed(red =>
-            {
-                calls++;
-                Check(!red && !club.IsOpenClubRed, "flag clears before red callback");
-                Check(handle.ReadLocalSnapshot().Data["IsOpenClubRed"] == (calls == 1 ? "0" : "1"), "red callback precedes write");
-            });
-            club.SetOpenClubRed();
-            Check(calls == 1 && Edit(club)?.Accepted == true && handle.ReadLocalSnapshot().Data["IsOpenClubRed"] == "1", "present key does not replace original flag gate");
-            var clubReceipt = Edit(club);
-            club.SetOpenClubRed();
-            Check(calls == 1 && ReferenceEquals(clubReceipt, Edit(club)), "false flag skips red and write");
-            club.IsOpenClubRed = true;
-            club.SetOpenClubRed();
-            Check(calls == 2 && !ReferenceEquals(clubReceipt, Edit(club)), "true flag writes existing value");
-
-            // A diagnostic result is not a second owner state. Do not unlock a real failed owner.
-            var rejected = handle.Update(null, "1");
-            Check(!rejected.Accepted, "actual rejected diagnostic");
-            fresh.GetType().GetProperty("LastPromptEdit", PrivateInstance).SetValue(fresh, rejected);
-            club.GetType().GetProperty("LastPromptEdit", PrivateInstance).SetValue(club, rejected);
-            Check(fresh.ShowNotice == target, "healthy owner ignores old rejected diagnostic");
-            club.SetOpenClubRed();
-            Check(calls == 2, "healthy false club ignores diagnostic without business effects");
-            await bridge.CloseAsync();
-            Reject(() =>
-            {
-                _ = fresh.ShowNotice;
-            });
-            Reject(() => fresh.ShowNotice = target);
-            Reject(club.SetOpenClubRed);
-            Check(calls == 2 && Cached(fresh) == target && !club.IsOpenClubRed, "stale cache-hit entries cause no effects");
-        }
-
-        private async Task FaultPrompt(bool useClub, string failureStage)
-        {
-            var handle = await OpenPrompt();
-            var settings = Bound<DefaultSettingService>(handle);
-            var club = Bound<ClubService>(handle);
-            var redCalls = 0;
-            ObserveRed(red =>
-            {
-                redCalls++;
-                Check(!red && !club.IsOpenClubRed, "failed write still follows original red order");
-            });
-            var faults = 0;
-            InjectFault(handle, stage =>
-            {
-                if (stage == failureStage)
-                {
-                    faults++;
-                    Check(useClub ? !club.IsOpenClubRed && redCalls == 1 : Cached(settings) == true,
-                        "business state precedes actual storage failure");
-                    throw new IOException("P6D synthetic " + failureStage);
-                }
-            });
-            Reject(() =>
-            {
-                if (useClub)
-                {
-                    club.SetOpenClubRed();
-                }
-                else
-                {
-                    settings.ShowNotice = true;
-                }
-            });
-            var edit = Edit(useClub ? (object)club : settings);
-            Check(faults == 1 && edit != null && !edit.Accepted, "actual rejected write preserved");
-            Check(edit.StateResult.Error == PlayerKVChangeError.StorageError &&
-                edit.StateResult.LocalCommitMayHaveSucceeded == (failureStage == "AfterReplace"), "actual uncertainty preserved");
-            Check(handle.Status == PlayerKVSyncStatus.StorageError, "actual storage terminal state retained");
-            Reject(() =>
-            {
-                _ = settings.ShowNotice;
-            });
-            Reject(() => settings.ShowNotice = true);
-            Reject(club.SetOpenClubRed);
-            Check(faults == 1 && redCalls == (useClub ? 1 : 0), "actual unreadable owner blocks repeat effects");
-            Check(useClub ? !club.IsOpenClubRed : Cached(settings) == true, "no added rollback");
-        }
-
-        private async Task RevokedDuringPrompt(bool useClub)
-        {
-            var handle = await OpenPrompt();
-            var settings = Bound<DefaultSettingService>(handle);
-            var club = Bound<ClubService>(handle);
-            var redCalls = 0;
-            ObserveRed(red =>
-            {
-                redCalls++;
-            });
-            InjectFault(handle, stage =>
-            {
-                if (stage == "AfterReplace")
-                {
-                    epoch++;
-                }
-            });
-            Reject(() =>
-            {
-                if (useClub)
-                {
-                    club.SetOpenClubRed();
-                }
-                else
-                {
-                    settings.ShowNotice = true;
-                }
-            });
-            Check(Edit(useClub ? (object)club : settings)?.Accepted == true, "completed disk write not disguised as unaccepted");
-            Check(useClub ? !club.IsOpenClubRed && redCalls == 1 : Cached(settings) == true, "revocation does not roll back original front effects");
-            Check(!handle.ReadLocalSnapshot().Success && requests == 1, "revoked old owner has no replay or transport write");
-        }
-
-        private async Task RevokedDuringClubCallback()
-        {
-            var handle = await OpenPrompt();
-            var club = Bound<ClubService>(handle);
-            var redCalls = 0;
-            ObserveRed(red =>
-            {
-                redCalls++;
-                epoch++;
-            });
-            var writes = 0;
-            InjectFault(handle, stage =>
-            {
-                writes++;
-            });
-            Reject(club.SetOpenClubRed);
-            Check(!club.IsOpenClubRed && redCalls == 1, "callback revocation preserves front effects");
-            Check(Edit(club)?.Accepted == false && writes == 0 && requests == 1, "callback revocation refuses old write without replay");
-        }
-        internal async Task<string> ExecuteCP3A()
-        {
-            Func<CookieContainer, HttpMessageHandler> factory = jar => new Handler(r =>
-            {
-                Check(r.RequestUri == new Uri(api, "playerdata/Get"), "CP3A synthetic Get only");
-                requests++;
-                return Json(new { data = new Dictionary<string, string>() });
-            });
-            bridge = (PlayerKVGameSessionBridge)typeof(PlayerKVGameSessionBridge).GetConstructor(PrivateInstance,
-                null, new[] { typeof(Func<CookieContainer, HttpMessageHandler>), typeof(bool) }, null).Invoke(new object[] { factory, false });
-            var tables = new cfg.Tables(name => SimpleJSON.JSON.Parse(File.ReadAllText(
-                Path.Combine(Application.dataPath, "../../cfgData", name + ".json"))));
-            var settingCtor = typeof(DefaultSettingService).GetConstructor(PrivateInstance,
-                null, new[] { typeof(bool) }, null);
-            var clubCtor = typeof(ClubService).GetConstructor(PrivateInstance,
-                null, new[] { typeof(bool) }, null);
-            var notificationCtor = typeof(LocalNotificationService).GetConstructor(PrivateInstance,
-                null, new[] { typeof(cfg.Tables) }, null);
-            Check(settingCtor != null && clubCtor != null && notificationCtor != null,
-                "formal service constructors exist");
-            var settings = (DefaultSettingService)settingCtor.Invoke(new object[] { true });
-            var club = (ClubService)clubCtor.Invoke(new object[] { true });
-            var notifications = (LocalNotificationService)notificationCtor.Invoke(new object[] { tables });
-            var pendingNotifications = (LocalNotificationService)notificationCtor.Invoke(new object[] { tables });
-            var pendingInit = pendingNotifications.Init();
-            Reject(() => Call(pendingNotifications, "PreflightFormalPromptSettings", settings));
-            await pendingInit;
-            await notifications.Init();
-            Reject(() => { _ = settings.ShowNotice; });
-            Reject(() => settings.ShowNotice = true);
-            Reject(club.SetOpenClubRed);
-            var handle = await Open();
-            Call(settings, "BindFormalPromptOwner", handle);
-            Call(club, "BindFormalPromptOwner", handle);
-            Call(notifications, "BindFormalPromptSettings", settings);
-            Call(settings, "BindFormalPromptOwner", handle);
-            Call(club, "BindFormalPromptOwner", handle);
-            Call(notifications, "BindFormalPromptSettings", settings);
-            Check(!settings.ShowNotice, "bound missing ShowNotice");
-            settings.ShowNotice = true;
-            club.SetOpenClubRed();
-            Check(settings.ShowNotice && !club.IsOpenClubRed, "bound prompt effects");
-            Check(requests == 1, "one synthetic KV Get and no transport write");
-            await bridge.CloseAsync();
-            Reject(() => { _ = settings.ShowNotice; });
-            Reject(club.SetOpenClubRed);
-            epoch++;
-            var nextHandle = await Open();
-            Reject(() => Call(settings, "BindFormalPromptOwner", nextHandle));
-            Reject(() => Call(club, "BindFormalPromptOwner", nextHandle));
-            var partialSetting = (DefaultSettingService)settingCtor.Invoke(new object[] { true });
-            var partialClub = (ClubService)clubCtor.Invoke(new object[] { true });
-            Call(partialSetting, "BindFormalPromptOwner", nextHandle);
-            await bridge.CloseAsync();
-            Reject(() => Call(partialClub, "BindFormalPromptOwner", nextHandle));
-            Reject(() => { _ = partialSetting.ShowNotice; });
-            epoch++;
-            var thirdHandle = await Open();
-            Reject(() => Call(partialSetting, "BindFormalPromptOwner", thirdHandle));
-            Check(requests == 3, "same owner binds and partial failure add no transport requests");
-            return JsonConvert.SerializeObject(new { success = true, caseId = "CP3A", assertions,
-                requests, formalRequests = 0, globalContainerChanged = false });
-        }
-        internal async Task Close()
-        {
-            var errors = new List<Exception>();
-            foreach (var child in children)
-            {
-                try
-                {
-                    await child.Close();
-                }
-                catch (Exception ex)
-                {
-                    errors.Add(ex);
-                }
-            }
-            try
-            {
-                RestoreFaults();
-            }
-            catch (Exception ex)
-            {
-                errors.Add(ex);
-            }
-            try
-            {
-                if (bridge != null)
-                {
-                    await bridge.CloseAsync();
-                }
-            }
-            catch (Exception ex)
-            {
-                errors.Add(ex);
-            }
-            foreach (var session in sessions)
-            {
-                try
-                {
-                    session.Dispose();
-                }
-                catch (Exception ex)
-                {
-                    errors.Add(ex);
-                }
-            }
-            foreach (var go in objects)
-            {
-                try
-                {
-                    if (go != null)
-                    {
-                        UnityEngine.Object.DestroyImmediate(go);
-                    }
-                    if (go != null)
-                    {
-                        throw new InvalidOperationException("Test object survived cleanup.");
-                    }
-                }
-                catch (Exception ex)
-                {
-                    errors.Add(ex);
-                }
-            }
-            if (errors.Count != 0)
-            {
-                throw new AggregateException(errors);
-            }
-        }
-
-        private void RestoreFaults()
-        {
-            var errors = new List<Exception>();
-            foreach (var restore in restoreFaults)
-            {
-                try
-                {
-                    restore();
-                }
-                catch (Exception ex)
-                {
-                    errors.Add(ex);
-                }
-            }
-            if (errors.Count != 0)
-            {
-                throw new AggregateException(errors);
-            }
-            restoreFaults.Clear();
-        }
-    }
-}
-#endif

Client/Assets/Editor/KVPromptStateValidation.cs.meta

@@ -1,2 +0,0 @@
-fileFormatVersion: 2
-guid: 67d5bde18c99423aa2168a5af1c2b0da

Client/Assets/Editor/S101LoginWindow.cs

@@ -1,74 +0,0 @@
-using System;
-using System.Threading;
-using game.Account;
-using UnityEditor;
-using UnityEngine;
-
-public sealed class S101LoginWindow : EditorWindow
-{
-    string playerId = "101";
-    string status = "输入涂游测试 ID，验证 s101 认证及 Cookie。";
-    bool busy;
-    S101AccountSession session;
-    CancellationTokenSource cancellation;
-
-    [MenuItem("Tools/Debug/S101 Minimal Login")]
-    static void Open() => GetWindow<S101LoginWindow>("S101 最小登录");
-
-    void OnGUI()
-    {
-        EditorGUILayout.LabelField("API", S101AccountSession.DefaultApiUrl);
-        using (new EditorGUI.DisabledScope(busy))
-        {
-            playerId = EditorGUILayout.TextField("涂游测试 ID", playerId);
-            if (GUILayout.Button("登录并验证 Cookie")) Login();
-        }
-        EditorGUILayout.HelpBox(status, MessageType.Info);
-        EditorGUILayout.LabelField("此入口只验证认证，不初始化玩法或写入存档。");
-    }
-
-    async void Login()
-    {
-        busy = true;
-        session?.Dispose();
-        cancellation?.Dispose();
-        cancellation = new CancellationTokenSource();
-        var attempt = new S101AccountSession();
-        session = attempt;
-        var token = cancellation.Token;
-        status = "正在登录…";
-        try
-        {
-            var login = await attempt.LoginAsync(playerId, token);
-            if (token.IsCancellationRequested) return;
-            if (!login.Success)
-            {
-                status = $"登录失败：{login.Error}，HTTP {login.StatusCode}";
-                return;
-            }
-            var probe = await attempt.CheckAuthorizationAsync(token);
-            if (token.IsCancellationRequested) return;
-            status = probe.Success
-                ? $"认证通过：涂游 ID {attempt.PlayerId}，内部 ID {attempt.InternalId}；Cookie 授权读取通过。"
-                : $"登录成功，但授权读取未通过：{probe.Error}，HTTP {probe.StatusCode}";
-        }
-        catch (Exception ex)
-        {
-            status = "验证异常：" + ex.GetType().Name;
-        }
-        finally
-        {
-            busy = false;
-            if (this != null) Repaint();
-        }
-    }
-
-    void OnDisable()
-    {
-        cancellation?.Cancel();
-        session?.Dispose();
-        cancellation?.Dispose();
-        cancellation = null;
-        session = null;
-    }
-}

Client/Assets/Scripts/Activity/Data/EventDataRepository.cs

@@ -9,8 +9,8 @@ namespace Activity.Data
     /// </summary>
     public class EventDataRepository : IEventDataRepository
     {
-        private readonly game.PlayerDataStorage.IPlayerSaveStore store;
+        private readonly Core.KV.IPlayerSaveStore store;
-        public EventDataRepository(game.PlayerDataStorage.IPlayerSaveStore store)
+        public EventDataRepository(Core.KV.IPlayerSaveStore store)
         { this.store = store ?? throw new ArgumentNullException(nameof(store)); }
 
         public void Save<T>(T data) where T : IEventData

Client/Assets/Scripts/Activity/Services/EventTokenService.cs

@@ -28,8 +28,8 @@ namespace Activity.Services
     /// </summary>
     public class EventTokenService : IEventTokenService
     {
-        private readonly game.PlayerDataStorage.IPlayerSaveStore store;
+        private readonly Core.KV.IPlayerSaveStore store;
-        public EventTokenService(game.PlayerDataStorage.IPlayerSaveStore store)
+        public EventTokenService(Core.KV.IPlayerSaveStore store)
         { this.store = store ?? throw new ArgumentNullException(nameof(store)); }
 
         #region 常量与字段

Client/Assets/Scripts/Aquarium/DataCenter/AquariumManager.cs

@@ -12,7 +12,7 @@ using UnityEngine;
 public class AquariumManager
 {
     public const string AquariumEventDataNewKey = "AquariumEventDataNewKey";
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore;
+    readonly Core.KV.IPlayerSaveStore saveStore;
     readonly IUserService loginUser;
     private cfg.Tables _tables;
     private ICustomServerMgr customServerMgr;
@@ -23,14 +23,14 @@ public class AquariumManager
     public List<AquariumSlotData> sellList;
     public AquariumManager()
     {
-        saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+        saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
         loginUser = GContext.container.Resolve<IUserService>();
         _tables = GContext.container.Resolve<Tables>();
         customServerMgr = GContext.container.Resolve<ICustomServerMgr>();
     }
-    public static AquariumManagerData GetAquariumManagerData(game.PlayerDataStorage.IPlayerSaveStore store = null)
+    public static AquariumManagerData GetAquariumManagerData(Core.KV.IPlayerSaveStore store = null)
     {
-        var source = store ?? GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+        var source = store ?? GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
         string dataStr = source.Read(AquariumEventDataNewKey).ValueOrThrow();
         if (!string.IsNullOrEmpty(dataStr))
         {

Client/Assets/Scripts/Camp/CampDataMM.cs

@@ -10,7 +10,7 @@ using UnityEngine;
 
 public class CampDataMM
 {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
 
     private cfg.Tables _tables;
     MMTService _MMService;

Client/Assets/Scripts/Core/CustomServerMgr.cs

@@ -8,7 +8,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using UnityEngine;
 using game.Account;
-using game.PlayerDataStorage;
+using game.KV;
 
 public interface ICustomServerMgr
 {
@@ -27,12 +27,14 @@ public interface ICustomServerMgr
     Uri ApiBaseUri { get; }
     int SessionVersion { get; }
     event Action SessionChanged;
-    void UseAccountSession(S101AccountSession session);
+    void UseAccountSession(GameServerAccountSession session);
     void ClearAccountSession();
 }
 
 public class CustomServerMgr : ICustomServerMgr
 {
+    public const string DefaultApiUrl = "http://s101.local:18080/";
+
     IConfig config { get; set; }
 
     //网络客户端
@@ -43,34 +45,31 @@ public class CustomServerMgr : ICustomServerMgr
     private readonly SynchronizationContext ownerContext;
     public int SessionVersion { get; private set; }
     public event Action SessionChanged;
-    PlayerKVAccountLease kvLease;
+    
-    bool kvOnly;
+    private KvAccountLease kvLease;
-    bool kvBusinessReady;
+    private bool kvOnly;
-    bool kvBusinessPublished;
+    private bool kvBusinessReady;
-    int pfRequests;
+    private bool kvBusinessPublished;
+    private int pfRequests;
     internal event Action<int> KVUnauthorized;
     internal bool IsFreshForKVLoad => pfRequests==0 && kvLease==null;
-    internal void BindKVForValidation(PlayerKVAccountLease lease)
+    internal void BindKVForGame(KvAccountLease lease)
     {
-        if(lease==null || lease.IsFormal || !lease.IsCurrent || lease.ApiBaseUri!=ApiBaseUri || !IsFreshForKVLoad)
+        if (lease == null || !lease.IsCurrent ||
-            throw new InvalidOperationException("Fresh matching KV lease required.");
+            lease.ApiBaseUri.AbsoluteUri != ApiBaseUri.AbsoluteUri || !IsFreshForKVLoad)
-        kvOnly=true; kvBusinessReady=false; kvBusinessPublished=false; SessionVersion++; kvLease=lease; _cookie=null;
+        {
-        var previous=client; client=null; previous?.Dispose(); SessionChanged?.Invoke();
-    }
-    internal void BindKVForGame(PlayerKVAccountLease lease)
-    {
-        if(lease==null || !lease.IsFormal || !lease.IsCurrent || lease.ApiBaseUri.AbsoluteUri!=PlayerKVRuntimeSelection.FormalApiUrl ||
-            ApiBaseUri.AbsoluteUri!=PlayerKVRuntimeSelection.FormalApiUrl || !IsFreshForKVLoad)
             throw new InvalidOperationException("Fresh formal KV lease required.");
+        }
         kvOnly=true; kvBusinessReady=false; kvBusinessPublished=false; SessionVersion++; kvLease=lease; _cookie=null;
         var previous=client; client=null; previous?.Dispose(); SessionChanged?.Invoke();
     }
     internal void EnableKVBusiness(long epoch)
     {
-        if(!kvOnly || kvBusinessReady || kvBusinessPublished || kvLease==null || !kvLease.IsFormal || !kvLease.IsCurrent ||
+        if (!kvOnly || kvBusinessReady || kvBusinessPublished || kvLease == null || !kvLease.IsCurrent ||
-           kvLease.Epoch!=epoch || kvLease.ApiBaseUri.AbsoluteUri!=PlayerKVRuntimeSelection.FormalApiUrl ||
+            kvLease.Epoch != epoch || kvLease.ApiBaseUri.AbsoluteUri != ApiBaseUri.AbsoluteUri)
-           ApiBaseUri.AbsoluteUri!=PlayerKVRuntimeSelection.FormalApiUrl)
+        {
             throw new InvalidOperationException("Current formal KV lease required for business transport.");
+        }
         kvBusinessPublished=true; kvBusinessReady=true;
     }
     internal void DisableKVBusiness()
@@ -80,30 +79,21 @@ public class CustomServerMgr : ICustomServerMgr
         try { SessionChanged?.Invoke(); }
         catch(Exception ex) { Debug.LogError($"KV session change failed: {ex.GetType().Name}"); }
     }
-    internal Task ClearKVForGame() => ClearKVForValidation();
+    internal Task ClearKVForGame()
-    internal Task ClearKVForValidation()
     {
-        kvBusinessReady=false; SessionVersion++; var previous=kvLease; kvLease=null; _cookie=null;
+        kvBusinessReady = false;
-        var closing=previous?.CloseAsync() ?? Task.CompletedTask;
+        SessionVersion++;
-        SessionChanged?.Invoke(); return closing;
+        var previous = kvLease;
-    }
+        kvLease = null;
-    internal async Task<PlayerKVAccountResponse> SendKVForValidationAsync(string route)
+        _cookie = null;
-    {
+        var closing = previous?.CloseAsync() ?? Task.CompletedTask;
-        var lease=kvLease; int version=SessionVersion;
+        SessionChanged?.Invoke();
-        if(!kvOnly || lease==null) return new PlayerKVAccountResponse(false);
+        return closing;
-        var response=await lease.SendAsync(HttpMethod.Get,route);
-        if(version!=SessionVersion || !ReferenceEquals(lease,kvLease) || !response.IsCurrent) return new PlayerKVAccountResponse(false);
-        if(response.StatusCode==401 || response.StatusCode==403)
-        {
-            KVUnauthorized?.Invoke(version);
-            return new PlayerKVAccountResponse(false,response.StatusCode);
-        }
-        return response;
     }
 
 
     public CookieContainer Cookie => kvOnly
-        ? (kvBusinessReady && kvLease?.IsFormal==true ? kvLease.FormalCookies : null) ?? throw new NullReferenceException()
+        ? (kvBusinessReady && kvLease != null ? kvLease.FormalCookies : null) ?? throw new NullReferenceException()
         : _cookie ?? throw new NullReferenceException();
     public Uri ApiBaseUri { get; }
 
@@ -118,13 +108,16 @@ public class CustomServerMgr : ICustomServerMgr
         });
         this.config = config;
 
-        var url = config.Get<string>(GConstant.K_Event_API_URL, S101AccountSession.DefaultApiUrl);
+        var url = config.Get<string>(GConstant.K_Event_API_URL, DefaultApiUrl);
-        if (string.IsNullOrWhiteSpace(url)) url = S101AccountSession.DefaultApiUrl;
+        if (string.IsNullOrWhiteSpace(url))
+        {
+            url = DefaultApiUrl;
+        }
         ApiBaseUri = new Uri(url.TrimEnd('/') + "/");
         ClearAccountSession();
     }
 
-    public void UseAccountSession(S101AccountSession session)
+    public void UseAccountSession(GameServerAccountSession session)
     {
         if(kvOnly) throw new InvalidOperationException("Controlled container cannot switch to PlayFab.");
         if (session == null || !session.IsAuthenticated || session.ApiBaseUri != ApiBaseUri)
@@ -134,7 +127,11 @@ public class CustomServerMgr : ICustomServerMgr
 
     public void ClearAccountSession()
     {
-        if(kvOnly) { PlayerKVShutdownRegistry.Process.Register(ClearKVForValidation()); return; }
+        if (kvOnly)
+        {
+            KvShutdownRegistry.Process.Register(ClearKVForGame());
+            return;
+        }
         ReplaceTransport(new CookieContainer());
     }
 
@@ -170,7 +167,10 @@ public class CustomServerMgr : ICustomServerMgr
             }
             if(!kvBusinessReady) throw new InvalidOperationException("Formal KV business transport is not ready.");
             var lease=kvLease; var kvVersion=SessionVersion;
-            if(lease==null || !lease.IsFormal || !lease.IsCurrent) return null;
+            if (lease == null || !lease.IsCurrent)
+            {
+                return null;
+            }
             try
             {
                 var response=await lease.SendAsync(method,url,body,contentType);
@@ -286,3 +286,4 @@ public class CustomServerMgr : ICustomServerMgr
         }
     }
 }
+

Client/Assets/Scripts/Core/GameServerAccountSession.cs

@@ -11,54 +11,101 @@ using Newtonsoft.Json.Linq;
 
 namespace game.Account
 {
-    public enum AccountLoginError { None, Validation, Http, Rejected, Protocol, Network, Timeout, Cancelled }
+    public enum AccountLoginError
+    {
+        None,
+        Validation,
+        Http,
+        Rejected,
+        Protocol,
+        Network,
+        Timeout,
+        Cancelled
+    }
 
     public sealed class AccountLoginResult
     {
         public bool Success => Error == AccountLoginError.None;
-        public AccountLoginError Error { get; }
+        public AccountLoginError Error
-        public int? StatusCode { get; }
+        {
+            get;
+        }
+        public int? StatusCode
+        {
+            get;
+        }
         internal AccountLoginResult(AccountLoginError error, int? status = null)
-        { Error = error; StatusCode = status; }
+        {
+            Error = error;
+            StatusCode = status;
+        }
     }
-
     /// <summary>
     /// Minimal Tuyou-ID authentication, independent of gameplay and PlayFab storage.
     /// Each login owns a fresh cookie jar; dispose the session on logout.
     /// </summary>
-    public sealed class S101AccountSession : IDisposable
+    public sealed class GameServerAccountSession : IDisposable
     {
-        public const string DefaultApiUrl = "http://s101.local:18080/";
+        private readonly object gate = new object();
-        readonly object gate = new object();
+        private readonly Uri api;
-        readonly Uri api;
+        private readonly Func<CookieContainer, HttpMessageHandler> handlerFactory;
-        readonly Func<CookieContainer, HttpMessageHandler> handlerFactory;
+        private HttpClient http;
-        HttpClient http;
+        private int generation;
-        int generation;
+        private bool disposed;
-        bool disposed;
 
-        public bool IsAuthenticated { get; private set; }
+        public bool IsAuthenticated
-        public string PlayerId { get; private set; }
+        {
-        public uint InternalId { get; private set; }
+            get;
-        public DateTime CreateTimeUtc { get; private set; }
+            private set;
-        public DateTime ServerTimeUtc { get; private set; }
+        }
-        public bool NewlyCreated { get; private set; }
+        public string PlayerId
-        public CookieContainer Cookies { get; private set; }
+        {
+            get;
+            private set;
+        }
+        public uint InternalId
+        {
+            get;
+            private set;
+        }
+        public DateTime CreateTimeUtc
+        {
+            get;
+            private set;
+        }
+        public DateTime ServerTimeUtc
+        {
+            get;
+            private set;
+        }
+        public bool NewlyCreated
+        {
+            get;
+            private set;
+        }
+        public CookieContainer Cookies
+        {
+            get;
+            private set;
+        }
         public Uri ApiBaseUri => api;
 
-        public S101AccountSession() : this(new Uri(DefaultApiUrl)) { }
+        // KV supplies its owned transport; the PF path uses the default handler.
-
+        public GameServerAccountSession(Uri api, Func<CookieContainer, HttpMessageHandler> handlerFactory = null)
-        // The factory is optional for transport tests. Returned handlers are owned by this session.
-        public S101AccountSession(Uri api, Func<CookieContainer, HttpMessageHandler> handlerFactory = null)
         {
             if (api == null || !api.IsAbsoluteUri ||
                 (api.Scheme != "http" && api.Scheme != "https") ||
                 !string.IsNullOrEmpty(api.Query) || !string.IsNullOrEmpty(api.Fragment) ||
                 !string.IsNullOrEmpty(api.UserInfo))
+            {
                 throw new ArgumentException("An absolute HTTP(S) API base URI is required.", nameof(api));
+            }
             this.api = new Uri(api.AbsoluteUri.TrimEnd('/') + "/");
             this.handlerFactory = handlerFactory ?? (jar => new HttpClientHandler
             {
-                CookieContainer = jar, UseCookies = true, AllowAutoRedirect = false
+                CookieContainer = jar,
+                UseCookies = true,
+                AllowAutoRedirect = false
             });
         }
 
@@ -70,7 +117,10 @@ namespace game.Account
             string id;
             lock (gate)
             {
-                if (disposed) return Result(AccountLoginError.Cancelled);
+                if (disposed)
+                {
+                    return Result(AccountLoginError.Cancelled);
+                }
                 generation++;
                 ClearIdentity();
                 http?.Dispose();
@@ -78,11 +128,19 @@ namespace game.Account
                 Cookies = null;
                 if (string.IsNullOrEmpty(tuyooId) ||
                     !long.TryParse(tuyooId, NumberStyles.None, CultureInfo.InvariantCulture, out var numericId) || numericId <= 0)
+                {
                     return Result(AccountLoginError.Validation);
-                if (token.IsCancellationRequested) return Result(AccountLoginError.Cancelled);
+                }
+                if (token.IsCancellationRequested)
+                {
+                    return Result(AccountLoginError.Cancelled);
+                }
                 id = numericId.ToString(CultureInfo.InvariantCulture);
                 cookies = new CookieContainer();
-                client = new HttpClient(handlerFactory(cookies)) { Timeout = TimeSpan.FromSeconds(15) };
+                client = new HttpClient(handlerFactory(cookies))
+                {
+                    Timeout = TimeSpan.FromSeconds(15)
+                };
                 http = client;
                 Cookies = cookies;
                 requestGeneration = generation;
@@ -91,24 +149,40 @@ namespace game.Account
             int? status = null;
             try
             {
-                using (var request = Request("account/Login", new JObject { ["playerId"] = id }))
+                using (var request = Request("account/Login", new JObject
+                {
+                    ["playerId"] = id
+                }))
                 using (var response = await client.SendAsync(request, token))
                 {
                     status = (int)response.StatusCode;
-                    if (response.StatusCode != HttpStatusCode.OK) return Result(AccountLoginError.Http, status);
+                    if (response.StatusCode != HttpStatusCode.OK)
+                    {
+                        return Result(AccountLoginError.Http, status);
+                    }
                     var body = Parse(await response.Content.ReadAsStringAsync());
-                    if (body["state"]?.Type != JTokenType.Integer) return Result(AccountLoginError.Protocol, status);
+                    if (body["state"]?.Type != JTokenType.Integer)
-                    if (body["state"].Value<long>() != 0) return Result(AccountLoginError.Rejected, status);
+                    {
+                        return Result(AccountLoginError.Protocol, status);
+                    }
+                    if (body["state"].Value<long>() != 0)
+                    {
+                        return Result(AccountLoginError.Rejected, status);
+                    }
                     if (body["internalId"]?.Type != JTokenType.Integer ||
                         !uint.TryParse(body["internalId"].ToString(), out var internalId) || internalId == 0 ||
                         body["newCreate"]?.Type != JTokenType.Boolean ||
                         !ReadUtc(body["createTime"], out var created) || !ReadUtc(body["svrTime"], out var serverTime) ||
                         cookies.GetCookies(api).Count == 0)
+                    {
                         return Result(AccountLoginError.Protocol, status);
+                    }
                     lock (gate)
                     {
                         if (disposed || generation != requestGeneration || token.IsCancellationRequested)
+                        {
                             return Result(AccountLoginError.Cancelled, status);
+                        }
                         PlayerId = id;
                         InternalId = internalId;
                         CreateTimeUtc = created;
@@ -122,82 +196,59 @@ namespace game.Account
             catch (OperationCanceledException)
             {
                 lock (gate)
-                    return Result(disposed || generation != requestGeneration || token.IsCancellationRequested
-                        ? AccountLoginError.Cancelled : AccountLoginError.Timeout, status);
-            }
-            catch (ObjectDisposedException) { return Result(AccountLoginError.Cancelled, status); }
-            catch (HttpRequestException) { return Result(AccountLoginError.Network, status); }
-            catch (JsonException) { return Result(AccountLoginError.Protocol, status); }
-            catch (OverflowException) { return Result(AccountLoginError.Protocol, status); }
-        }
-
-        /// <summary>Read-only probe: verifies that the server accepts this session cookie; never writes KV.</summary>
-        public async Task<AccountLoginResult> CheckAuthorizationAsync(CancellationToken token = default)
-        {
-            HttpClient client;
-            int requestGeneration;
-            lock (gate)
-            {
-                if (disposed || !IsAuthenticated) return Result(AccountLoginError.Rejected);
-                client = http;
-                requestGeneration = generation;
-            }
-            int? status = null;
-            try
-            {
-                using (var request = Request("playerdata/Get", new JObject()))
-                using (var response = await client.SendAsync(request, token))
                 {
-                    status = (int)response.StatusCode;
+                    return Result(disposed || generation != requestGeneration || token.IsCancellationRequested
-                    lock (gate)
+                            ? AccountLoginError.Cancelled : AccountLoginError.Timeout, status);
-                    {
-                        if (disposed || generation != requestGeneration || token.IsCancellationRequested)
-                            return Result(AccountLoginError.Cancelled, status);
-                        if (status == 401 || status == 403) ClearIdentity();
-                    }
-                    if (response.StatusCode != HttpStatusCode.OK) return Result(AccountLoginError.Http, status);
-                    var body = Parse(await response.Content.ReadAsStringAsync());
-                    if (!(body["data"] is JObject data)) return Result(AccountLoginError.Protocol, status);
-                    foreach (var item in data.Properties())
-                        if (item.Value.Type != JTokenType.String) return Result(AccountLoginError.Protocol, status);
-                    lock (gate)
-                        return Result(disposed || generation != requestGeneration || token.IsCancellationRequested
-                            ? AccountLoginError.Cancelled : AccountLoginError.None, status);
                 }
             }
-            catch (OperationCanceledException)
+            catch (ObjectDisposedException)
             {
-                lock (gate)
+                return Result(AccountLoginError.Cancelled, status);
-                    return Result(disposed || generation != requestGeneration || token.IsCancellationRequested
+            }
-                        ? AccountLoginError.Cancelled : AccountLoginError.Timeout, status);
+            catch (HttpRequestException)
+            {
+                return Result(AccountLoginError.Network, status);
+            }
+            catch (JsonException)
+            {
+                return Result(AccountLoginError.Protocol, status);
+            }
+            catch (OverflowException)
+            {
+                return Result(AccountLoginError.Protocol, status);
             }
-            catch (ObjectDisposedException) { return Result(AccountLoginError.Cancelled, status); }
-            catch (HttpRequestException) { return Result(AccountLoginError.Network, status); }
-            catch (JsonException) { return Result(AccountLoginError.Protocol, status); }
         }
 
-        HttpRequestMessage Request(string path, JObject body) => new HttpRequestMessage(HttpMethod.Post, new Uri(api, path))
+        private HttpRequestMessage Request(string path, JObject body) => new HttpRequestMessage(HttpMethod.Post, new Uri(api, path))
-        { Content = new StringContent(body.ToString(Formatting.None), Encoding.UTF8, "application/json") };
-
-        static JObject Parse(string text)
         {
-            using (var reader = new JsonTextReader(new StringReader(text)) { DateParseHandling = DateParseHandling.None })
+            Content = new StringContent(body.ToString(Formatting.None), Encoding.UTF8, "application/json")
+        };
+
+        private static JObject Parse(string text)
+        {
+            using (var reader = new JsonTextReader(new StringReader(text))
+            {
+                DateParseHandling = DateParseHandling.None
+            })
             {
                 var value = JObject.Load(reader);
-                if (reader.Read()) throw new JsonReaderException("Trailing JSON content.");
+                if (reader.Read())
+                {
+                    throw new JsonReaderException("Trailing JSON content.");
+                }
                 return value;
             }
         }
 
-        static bool ReadUtc(JToken value, out DateTime date)
+        private static bool ReadUtc(JToken value, out DateTime date)
         {
             date = default;
             return value?.Type == JTokenType.String && DateTime.TryParse(value.Value<string>(), CultureInfo.InvariantCulture,
                 DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal, out date);
         }
 
-        static AccountLoginResult Result(AccountLoginError error, int? status = null) => new AccountLoginResult(error, status);
+        private static AccountLoginResult Result(AccountLoginError error, int? status = null) => new AccountLoginResult(error, status);
-        void ClearIdentity()
+        private void ClearIdentity()
         {
             IsAuthenticated = false;
             PlayerId = null;
@@ -211,7 +262,10 @@ namespace game.Account
         {
             lock (gate)
             {
-                if (disposed) return;
+                if (disposed)
+                {
+                    return;
+                }
                 disposed = true;
                 generation++;
                 ClearIdentity();

Client/Assets/Scripts/Core/GameServerAccountSession.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: a8f49f7440c141e89d8519ff3aa1c034
+guid: 47cad15649b346799afbe5e5cafb4bb3
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Client/Assets/Scripts/Core/KV.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 4930c4a417ba4c908416717d26695848
+guid: f3f810de2c56488e979e3e585c94b35a
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Client/Assets/Scripts/Core/KV/IPlayerSaveStore.cs

@@ -0,0 +1,76 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Core.KV
+{
+    // A store belongs to one login. Callers retain this instance across awaits.
+    public interface IPlayerSaveStore
+    {
+        bool IsCurrent
+        {
+            get;
+        }
+        PlayerSaveReadResult Read(string key);
+        PlayerSaveWriteResult Write(string key, string value, bool remoteStore = true);
+        Task<bool> SyncDataImmidiate(string key, string value);
+    }
+
+    public sealed class PlayerSaveReadResult
+    {
+        public bool Success => Error == null;
+        public bool? Found
+        {
+            get;
+        }
+        public string Value
+        {
+            get;
+        }
+        public string Error
+        {
+            get;
+        }
+        internal PlayerSaveReadResult(bool found, string value)
+        {
+            Found = found;
+            Value = value;
+        }
+        internal PlayerSaveReadResult(string error)
+        {
+            Error = error ?? "ReadFailed";
+        }
+        public string ValueOrThrow()
+        {
+            if (!Success)
+            {
+                throw new InvalidOperationException("Player save read failed: " + Error);
+            }
+            return Value;
+        }
+    }
+
+    public sealed class PlayerSaveWriteResult
+    {
+        public bool Accepted => Error == null;
+        public string Error
+        {
+            get;
+        }
+        internal PlayerSaveWriteResult()
+        {
+        }
+        internal PlayerSaveWriteResult(string error)
+        {
+            Error = error ?? "WriteRejected";
+        }
+        public void RequireAccepted()
+        {
+            if (!Accepted)
+            {
+                throw new InvalidOperationException("Player save write rejected: " + Error);
+            }
+        }
+    }
+
+}

Client/Assets/Scripts/Core/KV/KvCacheStore.cs

@@ -0,0 +1,132 @@
+using System;
+using System.IO;
+using System.Security;
+using System.Text;
+using Newtonsoft.Json;
+
+namespace Core.KV
+{
+    internal sealed class KvCacheStore : IDisposable
+    {
+        private const long MaxBytes = 64L * 1024 * 1024;
+        private readonly KvIdentity identity;
+        private readonly FileStream lease;
+        private readonly string main, temporary, backup;
+        private bool disposed;
+
+        private KvCacheStore(KvIdentity identity, FileStream lease)
+        {
+            this.identity = identity;
+            this.lease = lease;
+            main = Path.Combine(identity.DirectoryPath, "state.json");
+            temporary = main + ".tmp";
+            backup = main + ".bak";
+        }
+
+        internal static KVOpenError Open(KvIdentity identity,
+            out KvCacheStore store, out KvSnapshot snapshot)
+        {
+            store = null;
+            snapshot = null;
+            FileStream lease = null;
+            try
+            {
+                Directory.CreateDirectory(identity.DirectoryPath);
+                try
+                {
+                    lease = new FileStream(Path.Combine(identity.DirectoryPath, "state.lock"), FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.None);
+                }
+                catch (IOException ex) when ((ex.HResult & 0xffff) == 32 || (ex.HResult & 0xffff) == 33)
+                {
+                    return KVOpenError.Busy;
+                }
+                store = new KvCacheStore(identity, lease);
+                if (!File.Exists(store.main))
+                {
+                    if (File.Exists(store.backup) || File.Exists(store.temporary))
+                    {
+                        throw KvSnapshot.Invalid();
+                    }
+                    snapshot = new KvSnapshot();
+                }
+                else
+                {
+                    if (new FileInfo(store.main).Length > MaxBytes)
+                    {
+                        throw KvSnapshot.Invalid();
+                    }
+                    snapshot = KvSnapshot.Decode(File.ReadAllText(store.main, new UTF8Encoding(false, true)), identity);
+                }
+                return KVOpenError.None;
+            }
+            catch (Exception ex) when (ex is JsonException || ex is OverflowException || ex is FormatException || ex is DecoderFallbackException)
+            {
+                store?.Dispose();
+                lease?.Dispose();
+                store = null;
+                return KVOpenError.RecoveryRequired;
+            }
+            catch (Exception ex) when (DiskError(ex))
+            {
+                store?.Dispose();
+                lease?.Dispose();
+                store = null;
+                return KVOpenError.StorageError;
+            }
+        }
+
+        internal bool Save(KvSnapshot snapshot, out bool mayHaveCommitted)
+        {
+            mayHaveCommitted = false;
+            try
+            {
+                if (disposed)
+                {
+                    // Preserve the existing diagnostic ObjectName when renaming the implementation.
+                    throw new ObjectDisposedException("PlayerKVCacheStore");
+                }
+                snapshot.Validate();
+                var bytes = new UTF8Encoding(false, true).GetBytes(snapshot.Encode(identity));
+                if (bytes.LongLength > MaxBytes)
+                {
+                    throw new IOException("KV cache capacity exceeded.");
+                }
+                using (var stream = new FileStream(temporary, FileMode.Create, FileAccess.Write, FileShare.None))
+                {
+                    stream.Write(bytes, 0, bytes.Length);
+                    stream.Flush(true);
+                }
+                mayHaveCommitted = true;
+                // The temp file is on the same filesystem. Never delete the main file first.
+                if (File.Exists(main))
+                {
+                    File.Replace(temporary, main, backup);
+                }
+                else
+                {
+                    File.Move(temporary, main);
+                }
+                mayHaveCommitted = false;
+                return true;
+            }
+            catch (Exception ex) when (DiskError(ex) || ex is JsonException || ex is EncoderFallbackException)
+            {
+                return false;
+            }
+        }
+
+        private static bool DiskError(Exception ex) => ex is IOException || ex is UnauthorizedAccessException ||
+            ex is SecurityException || ex is NotSupportedException || ex is ObjectDisposedException;
+
+        public void Dispose()
+        {
+            if (disposed)
+            {
+                return;
+            }
+            disposed = true;
+            lease.Dispose();
+            // Keep files, including failed temporary writes, for explicit recovery diagnosis.
+        }
+    }
+}

Client/Assets/Scripts/Core/KV/KvClient.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Globalization;
 using System.IO;
 using System.Net;
@@ -10,7 +11,7 @@ using System.Threading.Tasks;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
-namespace game.PlayerDataStorage
+namespace Core.KV
 {
     /// <summary>
     /// Private KV protocol for one fixed authenticated account/environment.
@@ -18,67 +19,85 @@ namespace game.PlayerDataStorage
     /// that transport for another account. This class neither retries nor logs payloads.
     /// Production login/storage integration is deliberately outside this adapter.
     /// </summary>
-    public sealed class PlayerKVClient
+    public sealed class KvClient
     {
-        readonly HttpClient http;
+        private readonly HttpClient http;
-        readonly Uri api;
+        private readonly Uri api;
 
-        public PlayerKVClient(HttpClient http, Uri apiBaseUri)
+        public KvClient(HttpClient http, Uri apiBaseUri)
         {
             this.http = http ?? throw new ArgumentNullException(nameof(http));
             if (apiBaseUri == null || !apiBaseUri.IsAbsoluteUri ||
                 (apiBaseUri.Scheme != "http" && apiBaseUri.Scheme != "https") ||
                 !string.IsNullOrEmpty(apiBaseUri.UserInfo) ||
                 !string.IsNullOrEmpty(apiBaseUri.Query) || !string.IsNullOrEmpty(apiBaseUri.Fragment))
+            {
                 throw new ArgumentException("An absolute HTTP(S) API base URI is required.", nameof(apiBaseUri));
+            }
             api = new Uri(apiBaseUri.AbsoluteUri.TrimEnd('/') + "/");
         }
 
-        public Task<PlayerKVResult> GetAsync(IEnumerable<string> keys = null, CancellationToken token = default)
+        public Task<KvResult> GetAsync(CancellationToken token = default)
         {
-            if (!CopyKeys(keys, true, out var snapshot)) return Invalid();
             var body = new JObject();
-            if (snapshot.Count > 0) body["keys"] = new JArray(snapshot);
             return SendAsync("Get", body, false, token);
         }
 
-        public Task<PlayerKVResult> SetAsync(IDictionary<string, string> data, CancellationToken token = default)
+        public Task<KvResult> SetAsync(IDictionary<string, string> data, CancellationToken token = default)
         {
-            if (data == null) return Invalid();
+            if (data == null)
+            {
+                return Invalid();
+            }
             var snapshot = new JObject();
             foreach (var pair in data)
             {
-                if (!ValidKey(pair.Key) || pair.Value == null) return Invalid();
+                if (!ValidKey(pair.Key) || pair.Value == null)
+                {
+                    return Invalid();
+                }
                 snapshot.Add(pair.Key, pair.Value);
             }
             return SendAsync("Set", new JObject { ["data"] = snapshot }, true, token);
         }
 
-        public Task<PlayerKVResult> DeleteAsync(IEnumerable<string> keys, CancellationToken token = default)
+        public Task<KvResult> DeleteAsync(IEnumerable<string> keys, CancellationToken token = default)
         {
-            if (!CopyKeys(keys, false, out var snapshot)) return Invalid();
+            if (!CopyKeys(keys, out var snapshot))
+            {
+                return Invalid();
+            }
             return SendAsync("Delete", new JObject { ["keys"] = new JArray(snapshot) }, true, token);
         }
 
-        static bool ValidKey(string key) => !string.IsNullOrEmpty(key) && key.Length <= 128;
+        private static bool ValidKey(string key) => !string.IsNullOrEmpty(key) && key.Length <= 128;
 
-        static bool CopyKeys(IEnumerable<string> keys, bool allowNull, out List<string> snapshot)
+        private static bool CopyKeys(IEnumerable<string> keys, out List<string> snapshot)
         {
             snapshot = new List<string>();
-            if (keys == null) return allowNull;
+            if (keys == null)
+            {
+                return false;
+            }
             foreach (var key in keys)
             {
-                if (!ValidKey(key)) return false;
+                if (!ValidKey(key))
+                {
+                    return false;
+                }
                 snapshot.Add(key);
             }
             return true;
         }
 
-        static Task<PlayerKVResult> Invalid() => Task.FromResult(new PlayerKVResult(PlayerKVError.Validation));
+        private static Task<KvResult> Invalid() => Task.FromResult(new KvResult(KVError.Validation));
 
-        async Task<PlayerKVResult> SendAsync(string action, JObject body, bool mutation, CancellationToken token)
+        private async Task<KvResult> SendAsync(string action, JObject body, bool mutation, CancellationToken token)
         {
-            if (token.IsCancellationRequested) return new PlayerKVResult(PlayerKVError.Cancelled);
+            if (token.IsCancellationRequested)
+            {
+                return new KvResult(KVError.Cancelled);
+            }
             int? status = null;
             bool enteredTransport = false;
             try
@@ -93,37 +112,40 @@ namespace game.PlayerDataStorage
                         status = (int)response.StatusCode;
                         token.ThrowIfCancellationRequested();
                         if (response.StatusCode != HttpStatusCode.OK)
-                            return new PlayerKVResult(status == 401 || status == 403
+                        {
-                                ? PlayerKVError.Unauthorized : PlayerKVError.Http, status,
+                            return new KvResult(status == 401 || status == 403
-                                mayHaveCommitted: mutation);
+                            ? KVError.Unauthorized : KVError.Http, mayHaveCommitted: mutation);
-                        if (mutation) return new PlayerKVResult(PlayerKVError.None, status);
+                        }
+                        if (mutation)
+                        {
+                            return new KvResult(KVError.None);
+                        }
                         var text = await response.Content.ReadAsStringAsync();
                         token.ThrowIfCancellationRequested();
                         var data = ParseData(text, out var updatedAtUtc);
-                        return new PlayerKVResult(PlayerKVError.None, status, data, updatedAtUtc: updatedAtUtc);
+                        return new KvResult(KVError.None, data, updatedAtUtc: updatedAtUtc);
                     }
                 }
             }
             catch (OperationCanceledException)
             {
-                return new PlayerKVResult(token.IsCancellationRequested ? PlayerKVError.Cancelled : PlayerKVError.Timeout,
+                return new KvResult(token.IsCancellationRequested ? KVError.Cancelled : KVError.Timeout, mayHaveCommitted: mutation && enteredTransport);
-                    status, mayHaveCommitted: mutation && enteredTransport);
             }
             catch (ObjectDisposedException)
             {
-                return new PlayerKVResult(PlayerKVError.Cancelled, status, mayHaveCommitted: mutation && enteredTransport);
+                return new KvResult(KVError.Cancelled, mayHaveCommitted: mutation && enteredTransport);
             }
             catch (HttpRequestException)
             {
-                return new PlayerKVResult(PlayerKVError.Network, status, mayHaveCommitted: mutation && enteredTransport);
+                return new KvResult(KVError.Network, mayHaveCommitted: mutation && enteredTransport);
             }
             catch (IOException)
             {
-                return new PlayerKVResult(PlayerKVError.Network, status, mayHaveCommitted: mutation && enteredTransport);
+                return new KvResult(KVError.Network, mayHaveCommitted: mutation && enteredTransport);
             }
             catch (JsonException)
             {
-                return new PlayerKVResult(PlayerKVError.Protocol, status, mayHaveCommitted: mutation && enteredTransport);
+                return new KvResult(KVError.Protocol, mayHaveCommitted: mutation && enteredTransport);
             }
         }
 
@@ -175,4 +197,51 @@ namespace game.PlayerDataStorage
             }
         }
     }
+
+    public enum KVError
+    {
+        None,
+        Validation,
+        Unauthorized,
+        Http,
+        Network,
+        Timeout,
+        Cancelled,
+        Protocol
+    }
+
+    public sealed class KvResult
+    {
+        public bool Success => Error == KVError.None;
+        public KVError Error
+        {
+            get;
+        }
+        // Only a successful Get has Data. Failure must never look like an empty save.
+        public IReadOnlyDictionary<string, string> Data
+        {
+            get;
+        }
+        // Null means the response did not supply timestamp metadata; never substitute read time.
+        public IReadOnlyDictionary<string, DateTime> UpdatedAtUtc
+        {
+            get;
+        }
+        // A failed write that entered the transport may already have reached the server.
+        // This is conservative, including HTTP failures. Do not blindly replay the write.
+        public bool MayHaveCommitted
+        {
+            get;
+        }
+
+        internal KvResult(KVError error,
+            Dictionary<string, string> data = null, bool mayHaveCommitted = false,
+            Dictionary<string, DateTime> updatedAtUtc = null)
+        {
+            Error = error;
+            Data = data == null ? null : new ReadOnlyDictionary<string, string>(data);
+            UpdatedAtUtc = updatedAtUtc == null ? null : new ReadOnlyDictionary<string, DateTime>(updatedAtUtc);
+            MayHaveCommitted = mayHaveCommitted;
+        }
+    }
 }

Client/Assets/Scripts/Core/KV/KvSessionOwner.cs

@@ -0,0 +1,461 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Globalization;
+using System.Net;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using game.Account;
+
+namespace Core.KV
+{
+    public enum KVSessionOpenError
+    {
+        None, 
+        Validation, 
+        Unauthenticated,
+        Busy, 
+        RecoveryRequired, 
+        StorageError,
+        ReadFailed, 
+        Unauthorized,
+        Stale, 
+        Cancelled
+    }
+
+    public sealed class KvSessionOpenResult
+    {
+        public bool Success => Error == KVSessionOpenError.None;
+        public KVSessionOpenError Error
+        {
+            get;
+        }
+        public KvSessionOwner Owner
+        {
+            get;
+        }
+        internal KvSessionOpenResult(KVSessionOpenError error, KvSessionOwner owner = null)
+        {
+            Error = error;
+            Owner = owner;
+        }
+    }
+
+    /// <summary>Owns one immutable account/epoch/cache/transport tuple.</summary>
+    public sealed class KvSessionOwner
+    {
+        private sealed class OperationLease : IDisposable
+        {
+            private KvSessionOwner owner;
+            internal OperationLease(KvSessionOwner owner)
+            {
+                this.owner = owner;
+            }
+            public void Dispose()
+            {
+                Interlocked.Exchange(ref owner, null)?.ExitOperation();
+            }
+        }
+
+        private readonly object admission = new object();
+        private readonly GameServerAccountSession session;
+        private readonly CookieContainer cookies;
+        private readonly CancellationTokenSource lifetime;
+        private readonly Func<long, bool> isCurrent;
+        private readonly KvSyncState state;
+        
+        private readonly KvSyncCoordinator coordinator;
+        private readonly TaskCompletionSource<bool> drained =
+            new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
+        private readonly string ownerId = Guid.NewGuid().ToString("N");
+        private int activeOperations;
+        private bool closing, closed;
+        private TaskCompletionSource<bool> closeCompletion;
+
+        public string OwnerInstanceId => ownerId;
+        public Uri ApiBaseUri
+        {
+            get;
+        }
+        public string PlayerId
+        {
+            get;
+        }
+        public long Epoch
+        {
+            get;
+        }
+        public KVSyncStatus Status => state.Status;
+
+        private KvSessionOwner(GameServerAccountSession session, CookieContainer cookies, Uri api, string playerId,
+            long epoch, Func<long, bool> isCurrent, CancellationTokenSource lifetime,
+            KvSyncState state, HttpClient http)
+        {
+            this.session = session;
+            this.cookies = cookies;
+            ApiBaseUri = api;
+            PlayerId = playerId;
+            Epoch = epoch;
+            this.isCurrent = isCurrent;
+            this.lifetime = lifetime;
+            this.state = state;
+            coordinator = new KvSyncCoordinator(state, new KvClient(http, api), http,
+                IsCapturedOwnerCurrent, lifetime.Token);
+        }
+
+        internal static async Task<KvSessionOpenResult> CreateAsync(GameServerAccountSession session, string cacheRoot,
+            string expectedPlayerId, Uri expectedApiBaseUri, long epoch, Func<long, bool> isCurrent,
+            CancellationToken lifetimeToken, Func<CookieContainer, HttpMessageHandler> handlerFactory)
+        {
+            if (session == null || expectedApiBaseUri == null || isCurrent == null || handlerFactory == null || epoch < 0 ||
+                !long.TryParse(expectedPlayerId, NumberStyles.None, CultureInfo.InvariantCulture, out var numericId) || numericId <= 0)
+            {
+                return new KvSessionOpenResult(KVSessionOpenError.Validation);
+            }
+            var playerId = numericId.ToString(CultureInfo.InvariantCulture);
+            Uri expectedApi;
+            try
+            {
+                expectedApi = NormalizeApi(expectedApiBaseUri);
+            }
+            catch (ArgumentException)
+            {
+                return new KvSessionOpenResult(KVSessionOpenError.Validation);
+            }
+            if (lifetimeToken.IsCancellationRequested)
+            {
+                return new KvSessionOpenResult(KVSessionOpenError.Cancelled);
+            }
+            if (!session.IsAuthenticated || session.Cookies == null)
+            {
+                return new KvSessionOpenResult(KVSessionOpenError.Unauthenticated);
+            }
+            var capturedCookies = session.Cookies;
+            var capturedApi = NormalizeApi(session.ApiBaseUri);
+            if (session.PlayerId != playerId || capturedApi != expectedApi || !isCurrent(epoch))
+            {
+                return new KvSessionOpenResult(KVSessionOpenError.Stale);
+            }
+
+            var opened = KvSyncState.Open(cacheRoot, capturedApi, playerId);
+            if (!opened.Success)
+            {
+                return new KvSessionOpenResult(MapOpen(opened.Error));
+            }
+            HttpClient http = null;
+            CancellationTokenSource lifetime = null;
+            KvSessionOwner owner = null;
+            try
+            {
+                var handler = handlerFactory(capturedCookies);
+                if (handler == null)
+                {
+                    throw new ArgumentException("Transport factory returned null.");
+                }
+                http = new HttpClient(handler)
+                {
+                    Timeout = TimeSpan.FromSeconds(15)
+                };
+                lifetime = CancellationTokenSource.CreateLinkedTokenSource(lifetimeToken);
+                owner = new KvSessionOwner(session, capturedCookies, capturedApi, playerId, epoch,
+                    isCurrent, lifetime, opened.State, http);
+                http = null;
+                lifetime = null;
+                KvResult read;
+                using (var lease = owner.TryEnter())
+                {
+                    if (lease == null)
+                    {
+                        return await owner.FailCreate(KVSessionOpenError.Cancelled);
+                    }
+                    read = await owner.coordinator.InitializeAsync();
+                }
+                if (!read.Success)
+                {
+                    return await owner.FailCreate(read.Error == KVError.Unauthorized
+                    ? KVSessionOpenError.Unauthorized
+                    : read.Error == KVError.Cancelled ? KVSessionOpenError.Cancelled
+                    : KVSessionOpenError.ReadFailed);
+                }
+                if (!owner.IsCapturedOwnerCurrent())
+                {
+                    return await owner.FailCreate(KVSessionOpenError.Stale);
+                }
+                return new KvSessionOpenResult(KVSessionOpenError.None, owner: owner);
+            }
+            catch (OperationCanceledException)
+            {
+                if (owner != null)
+                {
+                    return await owner.FailCreate(KVSessionOpenError.Cancelled);
+                }
+                opened.State.Dispose();
+                return new KvSessionOpenResult(KVSessionOpenError.Cancelled);
+            }
+            catch (Exception)
+            {
+                if (owner != null)
+                {
+                    return await owner.FailCreate(KVSessionOpenError.Validation);
+                }
+                http?.Dispose();
+                lifetime?.Dispose();
+                opened.State.Dispose();
+                return new KvSessionOpenResult(KVSessionOpenError.Validation);
+            }
+        }
+
+        /// <summary>Reads the existing state under an operation lease; does not open another cache.</summary>
+        public KvLocalReadResult ReadLocalSnapshot()
+        {
+            using (var lease = TryEnter())
+            {
+                if (lease == null)
+                {
+                    return ReadFailure(KVLocalReadError.StaleOrClosing);
+                }
+                try
+                {
+                    var data = state.ReadLocal();
+                    lock (admission)
+                    {
+                        if (!IsCapturedOwnerCurrent() || closing || closed)
+                        {
+                            return ReadFailure(KVLocalReadError.StaleOrClosing);
+                        }
+                        return new KvLocalReadResult(KVLocalReadError.None, data);
+                    }
+                }
+                catch (InvalidOperationException)
+                {
+                    lock (admission)
+                        return ReadFailure(!IsCapturedOwnerCurrent() || closing || closed
+                            ? KVLocalReadError.StaleOrClosing : KVLocalReadError.NotReady);
+                }
+            }
+        }
+
+        private KvLocalReadResult ReadFailure(KVLocalReadError error) =>
+            new KvLocalReadResult(error);
+
+        internal KvStateResult CompareDatas(long nowTicks)
+        {
+            using (var lease = TryEnter())
+            {
+                return lease == null ? new KvStateResult(KVChangeError.Blocked) : coordinator.CompareDatas(nowTicks);
+            }
+        }
+
+        internal KvStateResult Update(string key, string value, bool remoteStore, long updateTicks)
+        {
+            using (var lease = TryEnter())
+            {
+                return lease == null ? ClosedEdit() : coordinator.Update(key, value, remoteStore, updateTicks);
+            }
+        }
+
+        public Task<KvFlushResult> SyncDataAsync()
+        {
+            var lease = TryEnter();
+            if (lease == null)
+            {
+                return Task.FromResult(new KvFlushResult(1, 0, KVError.Cancelled));
+            }
+            return RunOrdinarySyncAsync(lease);
+        }
+
+        private async Task<KvFlushResult> RunOrdinarySyncAsync(OperationLease lease)
+        {
+            using (lease)
+            {
+                try
+                {
+                    return await coordinator.SyncDataAsync();
+                }
+                catch (Exception)
+                {
+                    return new KvFlushResult(1, 0, KVError.Protocol);
+                }
+            }
+        }
+
+        public async Task<bool> SyncDataImmidiate(string key, string value)
+        {
+            using (var lease = TryEnter())
+            {
+                if (lease == null)
+                {
+                    return false;
+                }
+                return await coordinator.SyncDataImmidiate(key, value);
+            }
+        }
+
+        internal async Task<bool> SyncDataImmidiate(IReadOnlyDictionary<string, string> values)
+        {
+            using (var lease = TryEnter())
+            {
+                if (lease == null)
+                {
+                    return false;
+                }
+                return await coordinator.SyncDataImmidiate(values);
+            }
+        }
+
+        private OperationLease TryEnter()
+        {
+            lock (admission)
+            {
+                if (closing || closed || !IsCapturedOwnerCurrent())
+                {
+                    return null;
+                }
+                activeOperations++;
+                return new OperationLease(this);
+            }
+        }
+
+        private void ExitOperation()
+        {
+            lock (admission)
+            {
+                activeOperations--;
+                if (closing && activeOperations == 0)
+                {
+                    drained.TrySetResult(true);
+                }
+            }
+        }
+
+        public Task CloseAsync()
+        {
+            TaskCompletionSource<bool> completion;
+            lock (admission)
+            {
+                if (closeCompletion != null)
+                {
+                    return closeCompletion.Task;
+                }
+                closing = true;
+                completion = closeCompletion = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
+                if (activeOperations == 0)
+                {
+                    drained.TrySetResult(true);
+                }
+            }
+            _ = CloseCoreAsync(completion);
+            return completion.Task;
+        }
+
+        private async Task CloseCoreAsync(TaskCompletionSource<bool> completion)
+        {
+            try
+            {
+                lifetime.Cancel();
+                coordinator.CloseTickets();
+                await drained.Task;
+                coordinator.Dispose();
+                state.Dispose();
+                lifetime.Dispose();
+                lock (admission)
+                    closed = true;
+                completion.TrySetResult(true);
+            }
+            catch (Exception ex)
+            {
+                completion.TrySetException(ex);
+            }
+        }
+
+        private async Task<KvSessionOpenResult> FailCreate(KVSessionOpenError error)
+        {
+            await CloseAsync();
+            return new KvSessionOpenResult(error);
+        }
+
+        private bool IsCapturedOwnerCurrent()
+        {
+            if (lifetime.IsCancellationRequested || !isCurrent(Epoch) || state.AuthenticationInvalid)
+            {
+                return false;
+            }
+            return session.IsAuthenticated && ReferenceEquals(session.Cookies, cookies) &&
+                session.PlayerId == PlayerId && NormalizeApi(session.ApiBaseUri) == ApiBaseUri;
+        }
+
+        private static Uri NormalizeApi(Uri api)
+        {
+            if (api == null || !api.IsAbsoluteUri || (api.Scheme != "http" && api.Scheme != "https") ||
+                api.UserInfo.Length != 0 || api.Query.Length != 0 || api.Fragment.Length != 0)
+            {
+                throw new ArgumentException("Invalid API base URI.");
+            }
+            return new Uri(api.AbsoluteUri.TrimEnd('/') + "/");
+        }
+
+        private static KVSessionOpenError MapOpen(KVOpenError error)
+        {
+            if (error == KVOpenError.Busy)
+            {
+                return KVSessionOpenError.Busy;
+            }
+            if (error == KVOpenError.RecoveryRequired)
+            {
+                return KVSessionOpenError.RecoveryRequired;
+            }
+            if (error == KVOpenError.StorageError)
+            {
+                return KVSessionOpenError.StorageError;
+            }
+            return KVSessionOpenError.Validation;
+        }
+
+        private KvStateResult ClosedEdit()
+        {
+            return new KvStateResult(KVChangeError.Blocked);
+        }
+
+    }
+
+    public enum KVLocalReadError
+    {
+        None,
+        StaleOrClosing,
+        NotReady
+    }
+
+    /// <summary>A detached snapshot. Failed reads have no data, never a pretend empty save.</summary>
+    public sealed class KvLocalReadResult
+    {
+        public bool Success => Error == KVLocalReadError.None;
+        public KVLocalReadError Error
+        {
+            get;
+        }
+        public IReadOnlyDictionary<string, string> Data
+        {
+            get;
+        }
+
+        internal KvLocalReadResult(KVLocalReadError error, IReadOnlyDictionary<string, string> data = null)
+        {
+            Error = error;
+            if (error != KVLocalReadError.None)
+            {
+                return;
+            }
+            if (data == null)
+            {
+                throw new ArgumentNullException(nameof(data));
+            }
+            var copy = new Dictionary<string, string>(StringComparer.Ordinal);
+            foreach (var item in data)
+            {
+                copy.Add(item.Key, item.Value);
+            }
+            Data = new ReadOnlyDictionary<string, string>(copy);
+        }
+    }
+}

Client/Assets/Scripts/Core/KV/KvSyncCoordinator.cs

@@ -4,123 +4,128 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 
-namespace game.PlayerDataStorage
+namespace Core.KV
 {
-    public enum PlayerKVTicketStatus { Pending, Confirmed, Superseded, Blocked, Unknown, Cancelled }
+    public enum KVTicketStatus
-
-    public sealed class PlayerKVSyncTicket
     {
-        public string OwnerInstanceId { get; }
+        Pending,
-        public long Epoch { get; }
+        Confirmed,
-        public string Key { get; }
+        Superseded,
-        public long Sequence { get; }
+        Blocked,
-        internal PlayerKVSyncTicket(string ownerId, long epoch, string key, long sequence)
+        Unknown,
-        { OwnerInstanceId = ownerId; Epoch = epoch; Key = key; Sequence = sequence; }
+        Cancelled
     }
 
-    public sealed class PlayerKVTicketResult
+    public sealed class KvTicketResult
     {
-        public PlayerKVTicketStatus Status { get; }
+        public KVTicketStatus Status
-        public PlayerKVError TransportError { get; }
-        public PlayerKVSyncStatus CacheStatus { get; }
-        internal PlayerKVTicketResult(PlayerKVTicketStatus status, PlayerKVError transportError, PlayerKVSyncStatus cacheStatus)
-        { Status = status; TransportError = transportError; CacheStatus = cacheStatus; }
-    }
-
-    public sealed class PlayerKVEditResult
-    {
-        public bool Accepted => StateResult != null && StateResult.Success;
-        public PlayerKVStateResult StateResult { get; }
-        public PlayerKVSyncTicket Ticket { get; }
-        internal PlayerKVEditResult(PlayerKVStateResult result, PlayerKVSyncTicket ticket = null)
-        { StateResult = result; Ticket = ticket; }
-    }
-
-    public sealed class PlayerKVFlushResult
-    {
-        public int Confirmed { get; }
-        public int Superseded { get; }
-        public int Blocked { get; }
-        public int Unknown { get; }
-        public int Buffered
         {
             get;
         }
-        public PlayerKVError TransportError { get; }
+        public KVError TransportError
-        public PlayerKVSyncStatus CacheStatus { get; }
-        internal PlayerKVFlushResult(int confirmed, int superseded, int blocked, int unknown,
-            PlayerKVError transportError, PlayerKVSyncStatus cacheStatus, int buffered = 0)
         {
-            Buffered = buffered;
+            get;
-            Confirmed = confirmed; Superseded = superseded; Blocked = blocked; Unknown = unknown;
+        }
-            TransportError = transportError; CacheStatus = cacheStatus;
+        internal KvTicketResult(KVTicketStatus status, KVError transportError)
+        {
+            Status = status;
+            TransportError = transportError;
+        }
+    }
+
+    public sealed class KvFlushResult
+    {
+        public int Blocked
+        {
+            get;
+        }
+        public int Unknown
+        {
+            get;
+        }
+        public KVError TransportError
+        {
+            get;
+        }
+        internal KvFlushResult(int blocked, int unknown, KVError transportError)
+        {
+            Blocked = blocked;
+            Unknown = unknown;
+            TransportError = transportError;
         }
     }
 
     /// <summary>One fixed owner's serialized Get/Set/Delete channel. No timers or automatic retries.</summary>
-    public sealed class PlayerKVSyncCoordinator : IDisposable
+    public sealed class KvSyncCoordinator : IDisposable
     {
-        sealed class TicketRecord
+        private sealed class TicketRecord
         {
-            internal readonly PlayerKVSyncTicket Ticket;
+            internal KvTicketResult Result;
-            internal readonly TaskCompletionSource<PlayerKVTicketResult> Completion =
+            internal bool Dispatched;
-                new TaskCompletionSource<PlayerKVTicketResult>(TaskCreationOptions.RunContinuationsAsynchronously);
-            internal bool Dispatched, ClaimedByFlush;
-            internal TicketRecord(PlayerKVSyncTicket ticket) { Ticket = ticket; }
         }
 
-        readonly object ticketGate = new object();
+        private readonly object ticketGate = new object();
-        readonly Dictionary<long, TicketRecord> tickets = new Dictionary<long, TicketRecord>();
+        private readonly Dictionary<long, TicketRecord> tickets = new Dictionary<long, TicketRecord>();
-        readonly SemaphoreSlim dispatch = new SemaphoreSlim(1, 1);
+        private readonly SemaphoreSlim dispatch = new SemaphoreSlim(1, 1);
-        readonly PlayerKVSyncState state;
+        private readonly KvSyncState state;
-        readonly PlayerKVClient client;
+        private readonly KvClient client;
-        readonly System.Net.Http.HttpClient http;
+        private readonly System.Net.Http.HttpClient http;
-        readonly string ownerId;
+        private readonly Func<bool> isOwnerCurrent;
-        readonly long epoch;
+        private readonly CancellationToken ownerToken;
-        readonly Func<bool> isOwnerCurrent;
-        readonly CancellationToken ownerToken;
         private bool disposed;
         private bool ordinaryDraining;
-        private TaskCompletionSource<(PlayerKVError Error, Dictionary<long, PlayerKVTicketResult> Results)> ordinaryDrainCompletion;
+        private TaskCompletionSource<(KVError Error, Dictionary<long, KvTicketResult> Results)> ordinaryDrainCompletion;
 
-        internal PlayerKVSyncCoordinator(PlayerKVSyncState state, PlayerKVClient client,
+        internal KvSyncCoordinator(KvSyncState state, KvClient client,
-            System.Net.Http.HttpClient http, string ownerId, long epoch, Func<bool> isOwnerCurrent,
+            System.Net.Http.HttpClient http, Func<bool> isOwnerCurrent,
             CancellationToken ownerToken)
         {
-            this.state = state; this.client = client; this.http = http; this.ownerId = ownerId;
+            this.state = state;
-            this.epoch = epoch; this.isOwnerCurrent = isOwnerCurrent; this.ownerToken = ownerToken;
+            this.client = client;
+            this.http = http;
+            this.isOwnerCurrent = isOwnerCurrent;
+            this.ownerToken = ownerToken;
         }
 
-        internal async Task<PlayerKVResult> InitializeAsync(bool prepareOriginalComparison = false)
+        internal async Task<KvResult> InitializeAsync()
         {
             await dispatch.WaitAsync(ownerToken);
             try
             {
-                if (!Current()) return CancelledResult();
+                if (!Current())
+                {
+                    return CancelledResult();
+                }
                 if (state.HasPendingComparison)
                 {
-                    return new PlayerKVResult(PlayerKVError.Protocol);
+                    return new KvResult(KVError.Protocol);
+                }
+                var result = await client.GetAsync(ownerToken);
+                if (!Current())
+                {
+                    return CancelledResult();
                 }
-                var result = await client.GetAsync(null, ownerToken);
-                if (!Current()) return CancelledResult();
                 if (result.Success)
                 {
-                    var reconciled = state.Reconcile(result.Data, result.UpdatedAtUtc, prepareOriginalComparison);
+                    var reconciled = state.Reconcile(result.Data, result.UpdatedAtUtc);
-                    return reconciled.Success ? result : new PlayerKVResult(PlayerKVError.Protocol);
+                    return reconciled.Success ? result : new KvResult(KVError.Protocol);
                 }
-                state.RecordReadFailure(result.Error == PlayerKVError.Unauthorized);
+                state.RecordReadFailure(result.Error == KVError.Unauthorized);
                 return result;
             }
-            finally { dispatch.Release(); }
+            finally
+            {
+                dispatch.Release();
+            }
         }
 
-        internal PlayerKVStateResult CompareDatas(long nowTicks)
+        internal KvStateResult CompareDatas(long nowTicks)
         {
             lock (ticketGate)
             {
                 if (!Current())
                 {
-                    return new PlayerKVStateResult(PlayerKVChangeError.Blocked);
+                    return new KvStateResult(KVChangeError.Blocked);
                 }
                 var previous = Unsent(state.Inspect()).Select(item => item.Sequence).ToArray();
                 var result = state.CompareDatas(nowTicks);
@@ -132,7 +137,7 @@ namespace game.PlayerDataStorage
             }
         }
 
-        internal PlayerKVEditResult Update(string key, string value, bool remoteStore, long? updateTicks = null)
+        internal KvStateResult Update(string key, string value, bool remoteStore, long updateTicks)
         {
             lock (ticketGate)
             {
@@ -140,37 +145,19 @@ namespace game.PlayerDataStorage
                 var result = state.Update(key, value, remoteStore, updateTicks);
                 if (!result.Success)
                 {
-                    return new PlayerKVEditResult(result);
+                    return result;
                 }
                 CompleteRemovedSources(previous);
                 if (!remoteStore || !Unsent(state.Inspect()).Any(item => item.Sequence == result.AttemptSequence))
                 {
-                    return new PlayerKVEditResult(result);
+                    return result;
                 }
-                var ticket = new PlayerKVSyncTicket(ownerId, epoch, key, result.AttemptSequence);
+                tickets.Add(result.AttemptSequence, new TicketRecord());
-                tickets.Add(ticket.Sequence, new TicketRecord(ticket));
+                return result;
-                return new PlayerKVEditResult(result, ticket);
             }
         }
 
-        internal PlayerKVEditResult Delete(string key)
+        private static IEnumerable<KvChange> Unsent(KvDiagnosticSnapshot value)
-        {
-            lock (ticketGate)
-            {
-                var previous = Unsent(state.Inspect()).Select(item => item.Sequence).ToArray();
-                var result = state.Delete(key);
-                if (!result.Success)
-                {
-                    return new PlayerKVEditResult(result);
-                }
-                CompleteRemovedSources(previous);
-                var ticket = new PlayerKVSyncTicket(ownerId, epoch, key, result.AttemptSequence);
-                tickets.Add(ticket.Sequence, new TicketRecord(ticket));
-                return new PlayerKVEditResult(result, ticket);
-            }
-        }
-
-        private static IEnumerable<PlayerKVChange> Unsent(PlayerKVDiagnosticSnapshot value)
         {
             return value.OrdinaryBuffers.SelectMany(bucket => bucket.Values)
                 .Concat(value.LegacyPending.Values).Concat(value.ExplicitDeletes.Values);
@@ -182,16 +169,16 @@ namespace game.PlayerDataStorage
             foreach (var sequence in previous)
             {
                 if (!remaining.Contains(sequence) && tickets.TryGetValue(sequence, out var record) &&
-                    !record.Dispatched && !record.Completion.Task.IsCompleted)
+                    !record.Dispatched && record.Result == null)
                 {
-                    Complete(record, PlayerKVTicketStatus.Superseded, PlayerKVError.None);
+                    Complete(record, KVTicketStatus.Superseded, KVError.None);
                 }
             }
         }
 
         internal Task<bool> SyncDataImmidiate(string key, string value)
         {
-            if (!KVSnapshot.ValidKey(key) || value == null)
+            if (!KvSnapshot.ValidKey(key) || value == null)
             {
                 return Task.FromResult(false);
             }
@@ -205,7 +192,7 @@ namespace game.PlayerDataStorage
                 return false;
             }
             var data = values.ToDictionary(pair => pair.Key, pair => pair.Value, StringComparer.Ordinal);
-            IReadOnlyList<PlayerKVChange> operations;
+            IReadOnlyList<KvChange> operations;
             lock (ticketGate)
             {
                 var previous = Unsent(state.Inspect()).Select(item => item.Sequence).ToArray();
@@ -221,7 +208,7 @@ namespace game.PlayerDataStorage
             {
                 await dispatch.WaitAsync(ownerToken);
                 acquired = true;
-                if (!Current() || state.Status != PlayerKVSyncStatus.Ready)
+                if (!Current() || state.Status != KVSyncStatus.Ready)
                 {
                     return false;
                 }
@@ -235,7 +222,7 @@ namespace game.PlayerDataStorage
                 {
                     return state.CompleteImmediate(operations).Success;
                 }
-                if (result.Error == PlayerKVError.Unauthorized)
+                if (result.Error == KVError.Unauthorized)
                 {
                     state.RecordReadFailure(true);
                 }
@@ -258,53 +245,32 @@ namespace game.PlayerDataStorage
             }
         }
 
-        internal long CaptureWatermark(out long[] targetSequences)
+        private static IEnumerable<KvChange> Outstanding(KvDiagnosticSnapshot snapshot)
-        {
-            lock (ticketGate)
-            {
-                var snapshot = state.Inspect();
-                var watermark = snapshot.NextSequence <= 1 ? 0 : snapshot.NextSequence - 1;
-                var target = new HashSet<long>(Outstanding(snapshot).Where(item => item.Sequence <= watermark).Select(item => item.Sequence));
-                foreach (var record in tickets.Values)
-                {
-                    if (record.Ticket.Sequence <= watermark && !record.ClaimedByFlush)
-                    {
-                        record.ClaimedByFlush = true;
-                        target.Add(record.Ticket.Sequence);
-                    }
-                }
-                targetSequences = target.ToArray();
-                return watermark;
-            }
-        }
-
-        private static IEnumerable<PlayerKVChange> Outstanding(PlayerKVDiagnosticSnapshot snapshot)
         {
             return Unsent(snapshot).Concat(snapshot.PreparedOrdinaryBatches.SelectMany(batch => batch.Items))
                 .Concat(snapshot.OrdinaryUnknownBatches.SelectMany(batch => batch.Items))
-                .Concat(snapshot.ActiveBatch == null ? Enumerable.Empty<PlayerKVChange>() : snapshot.ActiveBatch.Items)
+                .Concat(snapshot.ActiveBatch == null ? Enumerable.Empty<KvChange>() : snapshot.ActiveBatch.Items)
-                .Concat(snapshot.UnknownBatch == null ? Enumerable.Empty<PlayerKVChange>() : snapshot.UnknownBatch.Items);
+                .Concat(snapshot.UnknownBatch == null ? Enumerable.Empty<KvChange>() : snapshot.UnknownBatch.Items);
         }
 
-        // This explicit channel only sends imported legacy intents and explicit deletes, never ordinary buckets.
+        // This channel sends one imported legacy batch, never ordinary buckets.
-        internal async Task<PlayerKVFlushResult> FlushThroughAsync(long watermark, long[] targetSequences,
+        internal async Task<KvFlushResult> FlushThroughAsync(long watermark, long[] targetSequences)
-            bool legacyOnly = false, int maximumBatches = int.MaxValue)
         {
-            var error = PlayerKVError.None;
+            var error = KVError.None;
-            var observed = new Dictionary<long, PlayerKVTicketStatus>();
+            var observed = new Dictionary<long, KVTicketStatus>();
             var acquired = false;
             try
             {
                 await dispatch.WaitAsync(ownerToken);
                 acquired = true;
                 var sent = 0;
-                while (Current() && sent < maximumBatches)
+                while (Current() && sent < 1)
                 {
-                    PlayerKVStateResult begin;
+                    KvStateResult begin;
-                    PlayerKVBatch batch;
+                    KvBatch batch;
                     lock (ticketGate)
                     {
-                        begin = state.BeginBatch(watermark, legacyOnly, out batch);
+                        begin = state.BeginBatch(watermark, out batch);
                         if (begin.Success && batch != null)
                         {
                             MarkDispatched(batch);
@@ -312,7 +278,7 @@ namespace game.PlayerDataStorage
                     }
                     if (!begin.Success)
                     {
-                        MarkExplicitBlocked(watermark, legacyOnly, PlayerKVError.None, observed);
+                        MarkExplicitBlocked(watermark, KVError.None, observed);
                         break;
                     }
                     if (batch == null)
@@ -323,13 +289,13 @@ namespace game.PlayerDataStorage
                     var result = await SendAsync(batch);
                     if (!Current() && result.Success)
                     {
-                        result = new PlayerKVResult(PlayerKVError.Cancelled, mayHaveCommitted: true);
+                        result = new KvResult(KVError.Cancelled, mayHaveCommitted: true);
                     }
                     if (result.Success)
                     {
                         var confirmed = state.ConfirmBatch(batch.Id);
-                        var outcome = confirmed.Success ? PlayerKVTicketStatus.Confirmed : PlayerKVTicketStatus.Unknown;
+                        var outcome = confirmed.Success ? KVTicketStatus.Confirmed : KVTicketStatus.Unknown;
-                        RecordBatch(batch, outcome, PlayerKVError.None, observed);
+                        RecordBatch(batch, outcome, KVError.None, observed);
                         if (!confirmed.Success)
                         {
                             break;
@@ -337,27 +303,27 @@ namespace game.PlayerDataStorage
                         continue;
                     }
                     error = result.Error;
-                    state.FailBatch(batch.Id, result.MayHaveCommitted, result.Error == PlayerKVError.Unauthorized);
+                    state.FailBatch(batch.Id, result.MayHaveCommitted, result.Error == KVError.Unauthorized);
-                    var failedStatus = result.MayHaveCommitted ? PlayerKVTicketStatus.Unknown :
+                    var failedStatus = result.MayHaveCommitted ? KVTicketStatus.Unknown :
-                        ownerToken.IsCancellationRequested ? PlayerKVTicketStatus.Cancelled : PlayerKVTicketStatus.Blocked;
+                        ownerToken.IsCancellationRequested ? KVTicketStatus.Cancelled : KVTicketStatus.Blocked;
                     RecordBatch(batch, failedStatus, result.Error, observed);
                     break;
                 }
                 if (!Current())
                 {
-                    error = PlayerKVError.Cancelled;
+                    error = KVError.Cancelled;
                     CloseTickets();
                 }
             }
             catch (OperationCanceledException)
             {
-                error = PlayerKVError.Cancelled;
+                error = KVError.Cancelled;
                 CloseTickets();
             }
             catch (Exception)
             {
-                error = PlayerKVError.Protocol;
+                error = KVError.Protocol;
-                MarkExplicitBlocked(watermark, legacyOnly, error, observed);
+                MarkExplicitBlocked(watermark, error, observed);
             }
             finally
             {
@@ -369,9 +335,9 @@ namespace game.PlayerDataStorage
             return Summary(targetSequences ?? Array.Empty<long>(), error, observed);
         }
 
-        internal Task<PlayerKVFlushResult> SyncDataAsync()
+        internal Task<KvFlushResult> SyncDataAsync()
         {
-            TaskCompletionSource<(PlayerKVError Error, Dictionary<long, PlayerKVTicketResult> Results)> completion;
+            TaskCompletionSource<(KVError Error, Dictionary<long, KvTicketResult> Results)> completion;
             bool start;
             long[] targets;
             lock (ticketGate)
@@ -379,12 +345,12 @@ namespace game.PlayerDataStorage
                 var snapshot = state.Inspect();
                 if (!Current())
                 {
-                    return Task.FromResult(new PlayerKVFlushResult(0, 0, 1, 0, PlayerKVError.Cancelled, state.Status));
+                    return Task.FromResult(new KvFlushResult(1, 0, KVError.Cancelled));
                 }
                 if (snapshot.LegacyPending.Count != 0)
                 {
                     var watermark = snapshot.NextSequence - 1;
-                    return FlushThroughAsync(watermark, snapshot.LegacyPending.Values.Select(item => item.Sequence).ToArray(), true, 1);
+                    return FlushThroughAsync(watermark, snapshot.LegacyPending.Values.Select(item => item.Sequence).ToArray());
                 }
                 var captured = state.CaptureOrdinaryBatch(out var batch);
                 if (!captured.Success)
@@ -393,28 +359,28 @@ namespace game.PlayerDataStorage
                     {
                         if (tickets.TryGetValue(item.Sequence, out var record))
                         {
-                            Complete(record, PlayerKVTicketStatus.Blocked, PlayerKVError.None);
+                            Complete(record, KVTicketStatus.Blocked, KVError.None);
                         }
                     }
-                    return Task.FromResult(new PlayerKVFlushResult(0, 0, 1, 0, PlayerKVError.None, state.Status));
+                    return Task.FromResult(new KvFlushResult(1, 0, KVError.None));
                 }
                 snapshot = state.Inspect();
                 if (batch == null && ordinaryDraining)
                 {
                     // The existing caller owns the queued work; an empty tick has no new result to observe.
-                    return Task.FromResult(Summary(Array.Empty<long>(), PlayerKVError.None));
+                    return Task.FromResult(Summary(Array.Empty<long>(), KVError.None));
                 }
                 targets = batch != null ? batch.Items.Select(item => item.Sequence).ToArray() :
                     snapshot.PreparedOrdinaryBatches.SelectMany(item => item.Items).Select(item => item.Sequence).ToArray();
                 if (snapshot.PreparedOrdinaryBatches.Count == 0)
                 {
-                    return Task.FromResult(Summary(targets, PlayerKVError.None));
+                    return Task.FromResult(Summary(targets, KVError.None));
                 }
                 start = !ordinaryDraining;
                 if (start)
                 {
                     ordinaryDraining = true;
-                    ordinaryDrainCompletion = new TaskCompletionSource<(PlayerKVError Error, Dictionary<long, PlayerKVTicketResult> Results)>(TaskCreationOptions.RunContinuationsAsynchronously);
+                    ordinaryDrainCompletion = new TaskCompletionSource<(KVError Error, Dictionary<long, KvTicketResult> Results)>(TaskCreationOptions.RunContinuationsAsynchronously);
                 }
                 completion = ordinaryDrainCompletion;
             }
@@ -426,31 +392,31 @@ namespace game.PlayerDataStorage
             return ObserveOrdinaryAsync(completion.Task, targets);
         }
 
-        private async Task<PlayerKVFlushResult> ObserveOrdinaryAsync(Task<(PlayerKVError Error, Dictionary<long, PlayerKVTicketResult> Results)> worker, long[] targets)
+        private async Task<KvFlushResult> ObserveOrdinaryAsync(Task<(KVError Error, Dictionary<long, KvTicketResult> Results)> worker, long[] targets)
         {
             var completed = await worker;
             var error = targets.Where(completed.Results.ContainsKey).Select(sequence => completed.Results[sequence].TransportError)
-                .FirstOrDefault(value => value != PlayerKVError.None);
+                .FirstOrDefault(value => value != KVError.None);
-            if (error == PlayerKVError.None && targets.Any(sequence => !completed.Results.ContainsKey(sequence)))
+            if (error == KVError.None && targets.Any(sequence => !completed.Results.ContainsKey(sequence)))
             {
                 error = completed.Error;
             }
             return Summary(targets, error, completed.Results.ToDictionary(pair => pair.Key, pair => pair.Value.Status));
         }
 
-        private async Task DrainOrdinaryAsync(TaskCompletionSource<(PlayerKVError Error, Dictionary<long, PlayerKVTicketResult> Results)> completion)
+        private async Task DrainOrdinaryAsync(TaskCompletionSource<(KVError Error, Dictionary<long, KvTicketResult> Results)> completion)
         {
-            var error = PlayerKVError.None;
+            var error = KVError.None;
-            var observed = new Dictionary<long, PlayerKVTicketResult>();
+            var observed = new Dictionary<long, KvTicketResult>();
-            void RecordOrdinaryBatch(PlayerKVBatch batch, PlayerKVTicketStatus status, PlayerKVError transportError)
+            void RecordOrdinaryBatch(KvBatch batch, KVTicketStatus status, KVError transportError)
             {
                 CompleteBatch(batch, status, transportError);
                 foreach (var item in batch.Items)
                 {
-                    observed[item.Sequence] = new PlayerKVTicketResult(status, transportError, state.Status);
+                    observed[item.Sequence] = new KvTicketResult(status, transportError);
                 }
             }
-            PlayerKVBatch active = null;
+            KvBatch active = null;
             var acquired = false;
             var dispatched = false;
             try
@@ -459,7 +425,7 @@ namespace game.PlayerDataStorage
                 {
                     await dispatch.WaitAsync(ownerToken);
                     acquired = true;
-                    PlayerKVStateResult begin;
+                    KvStateResult begin;
                     lock (ticketGate)
                     {
                         begin = state.BeginOrdinaryBatch(out active);
@@ -473,7 +439,7 @@ namespace game.PlayerDataStorage
                                 {
                                     if (tickets.TryGetValue(item.Sequence, out var record))
                                     {
-                                        Complete(record, PlayerKVTicketStatus.Blocked, PlayerKVError.None);
+                                        Complete(record, KVTicketStatus.Blocked, KVError.None);
                                     }
                                 }
                             }
@@ -485,12 +451,12 @@ namespace game.PlayerDataStorage
                     var result = await SendAsync(active);
                     if (!Current() && result.Success)
                     {
-                        result = new PlayerKVResult(PlayerKVError.Cancelled, mayHaveCommitted: true);
+                        result = new KvResult(KVError.Cancelled, mayHaveCommitted: true);
                     }
                     if (result.Success)
                     {
                         var confirmed = state.ConfirmBatch(active.Id);
-                        RecordOrdinaryBatch(active, confirmed.Success ? PlayerKVTicketStatus.Confirmed : PlayerKVTicketStatus.Unknown, PlayerKVError.None);
+                        RecordOrdinaryBatch(active, confirmed.Success ? KVTicketStatus.Confirmed : KVTicketStatus.Unknown, KVError.None);
                         if (!confirmed.Success)
                         {
                             break;
@@ -499,10 +465,10 @@ namespace game.PlayerDataStorage
                     else
                     {
                         error = result.Error;
-                        var failed = state.FailBatch(active.Id, result.MayHaveCommitted, result.Error == PlayerKVError.Unauthorized);
+                        var failed = state.FailBatch(active.Id, result.MayHaveCommitted, result.Error == KVError.Unauthorized);
-                        RecordOrdinaryBatch(active, result.MayHaveCommitted ? PlayerKVTicketStatus.Unknown :
+                        RecordOrdinaryBatch(active, result.MayHaveCommitted ? KVTicketStatus.Unknown :
-                            ownerToken.IsCancellationRequested ? PlayerKVTicketStatus.Cancelled : PlayerKVTicketStatus.Blocked, result.Error);
+                            ownerToken.IsCancellationRequested ? KVTicketStatus.Cancelled : KVTicketStatus.Blocked, result.Error);
-                        if (!failed.Success || state.Status != PlayerKVSyncStatus.Ready)
+                        if (!failed.Success || state.Status != KVSyncStatus.Ready)
                         {
                             break;
                         }
@@ -515,20 +481,20 @@ namespace game.PlayerDataStorage
             }
             catch (OperationCanceledException)
             {
-                error = PlayerKVError.Cancelled;
+                error = KVError.Cancelled;
                 if (active != null)
                 {
                     state.FailBatch(active.Id, dispatched);
-                    RecordOrdinaryBatch(active, dispatched ? PlayerKVTicketStatus.Unknown : PlayerKVTicketStatus.Cancelled, error);
+                    RecordOrdinaryBatch(active, dispatched ? KVTicketStatus.Unknown : KVTicketStatus.Cancelled, error);
                 }
             }
             catch (Exception)
             {
-                error = PlayerKVError.Protocol;
+                error = KVError.Protocol;
                 if (active != null)
                 {
                     state.FailBatch(active.Id, dispatched);
-                    RecordOrdinaryBatch(active, dispatched ? PlayerKVTicketStatus.Unknown : PlayerKVTicketStatus.Blocked, error);
+                    RecordOrdinaryBatch(active, dispatched ? KVTicketStatus.Unknown : KVTicketStatus.Blocked, error);
                 }
             }
             finally
@@ -553,14 +519,14 @@ namespace game.PlayerDataStorage
                     }
                     catch (Exception)
                     {
-                        error = PlayerKVError.Protocol;
+                        error = KVError.Protocol;
                     }
                 }
                 completion.TrySetResult((error, observed));
             }
         }
 
-        private Task<PlayerKVResult> SendAsync(PlayerKVBatch batch)
+        private Task<KvResult> SendAsync(KvBatch batch)
         {
             if (batch.IsDelete)
             {
@@ -569,8 +535,8 @@ namespace game.PlayerDataStorage
             return client.SetAsync(batch.Items.ToDictionary(item => item.Key, item => item.Target.Value, StringComparer.Ordinal), ownerToken);
         }
 
-        private void RecordBatch(PlayerKVBatch batch, PlayerKVTicketStatus status, PlayerKVError error,
+        private void RecordBatch(KvBatch batch, KVTicketStatus status, KVError error,
-            Dictionary<long, PlayerKVTicketStatus> observed)
+            Dictionary<long, KVTicketStatus> observed)
         {
             CompleteBatch(batch, status, error);
             foreach (var item in batch.Items)
@@ -579,19 +545,19 @@ namespace game.PlayerDataStorage
             }
         }
 
-        private void MarkExplicitBlocked(long watermark, bool legacyOnly, PlayerKVError error,
+        private void MarkExplicitBlocked(long watermark, KVError error,
-            Dictionary<long, PlayerKVTicketStatus> observed)
+            Dictionary<long, KVTicketStatus> observed)
         {
             lock (ticketGate)
             {
                 var snapshot = state.Inspect();
-                var source = legacyOnly ? snapshot.LegacyPending.Values : snapshot.LegacyPending.Values.Concat(snapshot.ExplicitDeletes.Values);
+                var source = snapshot.LegacyPending.Values;
                 foreach (var item in source.Where(item => item.Sequence <= watermark))
                 {
-                    var outcome = PlayerKVTicketStatus.Blocked;
+                    var outcome = KVTicketStatus.Blocked;
                     if (tickets.TryGetValue(item.Sequence, out var record))
                     {
-                        outcome = record.Dispatched ? PlayerKVTicketStatus.Unknown : PlayerKVTicketStatus.Blocked;
+                        outcome = record.Dispatched ? KVTicketStatus.Unknown : KVTicketStatus.Blocked;
                         Complete(record, outcome, error);
                     }
                     observed[item.Sequence] = outcome;
@@ -599,58 +565,55 @@ namespace game.PlayerDataStorage
             }
         }
 
-        internal async Task<PlayerKVTicketResult> WaitForTicketAsync(PlayerKVSyncTicket ticket, CancellationToken token)
-        {
-            if (ticket == null || ticket.OwnerInstanceId != ownerId || ticket.Epoch != epoch)
-                return new PlayerKVTicketResult(PlayerKVTicketStatus.Blocked, PlayerKVError.Validation, state.Status);
-            TicketRecord record;
-            lock (ticketGate)
-                if (!tickets.TryGetValue(ticket.Sequence, out record) || record.Ticket.Key != ticket.Key)
-                    return new PlayerKVTicketResult(PlayerKVTicketStatus.Blocked, PlayerKVError.Validation, state.Status);
-            if (!token.CanBeCanceled) return await record.Completion.Task;
-            if (token.IsCancellationRequested)
-                return new PlayerKVTicketResult(PlayerKVTicketStatus.Cancelled, PlayerKVError.Cancelled, state.Status);
-            var cancelled = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
-            using (token.Register(() => cancelled.TrySetResult(true)))
-            {
-                if (await Task.WhenAny(record.Completion.Task, cancelled.Task) == record.Completion.Task)
-                    return await record.Completion.Task;
-            }
-            return new PlayerKVTicketResult(PlayerKVTicketStatus.Cancelled, PlayerKVError.Cancelled, state.Status);
-        }
-
         internal void CloseTickets()
         {
             lock (ticketGate)
+            {
                 foreach (var record in tickets.Values)
-                    if (!record.Completion.Task.IsCompleted)
+                {
-                        Complete(record, record.Dispatched ? PlayerKVTicketStatus.Unknown : PlayerKVTicketStatus.Cancelled,
+                    if (record.Result == null)
-                            PlayerKVError.Cancelled);
+                    {
+                        Complete(record, record.Dispatched ? KVTicketStatus.Unknown : KVTicketStatus.Cancelled,
+                            KVError.Cancelled);
+                    }
+                }
+            }
         }
 
-        void MarkDispatched(PlayerKVBatch batch)
+        private void MarkDispatched(KvBatch batch)
         {
             lock (ticketGate)
                 foreach (var item in batch.Items)
-                    if (tickets.TryGetValue(item.Sequence, out var record)) record.Dispatched = true;
+                    if (tickets.TryGetValue(item.Sequence, out var record))
+                    {
+                        record.Dispatched = true;
+                    }
         }
 
-        void CompleteBatch(PlayerKVBatch batch, PlayerKVTicketStatus status, PlayerKVError error)
+        private void CompleteBatch(KvBatch batch, KVTicketStatus status, KVError error)
         {
             lock (ticketGate)
                 foreach (var item in batch.Items)
-                    if (tickets.TryGetValue(item.Sequence, out var record)) Complete(record, status, error);
+                    if (tickets.TryGetValue(item.Sequence, out var record))
+                    {
+                        Complete(record, status, error);
+                    }
         }
 
-        void Complete(TicketRecord record, PlayerKVTicketStatus status, PlayerKVError error) =>
+        private void Complete(TicketRecord record, KVTicketStatus status, KVError error)
-            record.Completion.TrySetResult(new PlayerKVTicketResult(status, error, state.Status));
+        {
+            if (record.Result == null)
+            {
+                record.Result = new KvTicketResult(status, error);
+            }
+        }
 
-        private PlayerKVFlushResult Summary(IEnumerable<long> targetSequences, PlayerKVError error,
+        private KvFlushResult Summary(IEnumerable<long> targetSequences, KVError error,
-            Dictionary<long, PlayerKVTicketStatus> observed = null)
+            Dictionary<long, KVTicketStatus> observed = null)
         {
             lock (ticketGate)
             {
-                var counts = new Dictionary<PlayerKVTicketStatus, int>();
+                var counts = new Dictionary<KVTicketStatus, int>();
                 var snapshot = state.Inspect();
                 var unknown = new HashSet<long>(snapshot.OrdinaryUnknownBatches.SelectMany(batch => batch.Items).Select(item => item.Sequence));
                 if (snapshot.UnknownBatch != null)
@@ -660,10 +623,10 @@ namespace game.PlayerDataStorage
                 var outstanding = new HashSet<long>(Outstanding(snapshot).Select(item => item.Sequence));
                 foreach (var sequence in targetSequences.Distinct())
                 {
-                    PlayerKVTicketStatus outcome;
+                    KVTicketStatus outcome;
-                    if (tickets.TryGetValue(sequence, out var record) && record.Completion.Task.IsCompleted)
+                    if (tickets.TryGetValue(sequence, out var record) && record.Result != null)
                     {
-                        outcome = record.Completion.Task.GetAwaiter().GetResult().Status;
+                        outcome = record.Result.Status;
                     }
                     else if (observed != null && observed.TryGetValue(sequence, out var actual))
                     {
@@ -671,11 +634,11 @@ namespace game.PlayerDataStorage
                     }
                     else if (unknown.Contains(sequence))
                     {
-                        outcome = PlayerKVTicketStatus.Unknown;
+                        outcome = KVTicketStatus.Unknown;
                     }
                     else if (outstanding.Contains(sequence) || tickets.ContainsKey(sequence))
                     {
-                        outcome = PlayerKVTicketStatus.Pending;
+                        outcome = KVTicketStatus.Pending;
                     }
                     else
                     {
@@ -683,22 +646,23 @@ namespace game.PlayerDataStorage
                     }
                     counts[outcome] = counts.TryGetValue(outcome, out var count) ? count + 1 : 1;
                 }
-                int Count(PlayerKVTicketStatus status)
+                int Count(KVTicketStatus status)
                 {
                     return counts.TryGetValue(status, out var count) ? count : 0;
                 }
-                return new PlayerKVFlushResult(Count(PlayerKVTicketStatus.Confirmed), Count(PlayerKVTicketStatus.Superseded),
+                return new KvFlushResult(Count(KVTicketStatus.Blocked) + Count(KVTicketStatus.Cancelled), Count(KVTicketStatus.Unknown), error);
-                    Count(PlayerKVTicketStatus.Blocked) + Count(PlayerKVTicketStatus.Cancelled), Count(PlayerKVTicketStatus.Unknown),
-                    error, state.Status, Count(PlayerKVTicketStatus.Pending));
             }
         }
 
-        bool Current() => !ownerToken.IsCancellationRequested && isOwnerCurrent();
+        private bool Current() => !ownerToken.IsCancellationRequested && isOwnerCurrent();
-        static PlayerKVResult CancelledResult() => new PlayerKVResult(PlayerKVError.Cancelled);
+        private static KvResult CancelledResult() => new KvResult(KVError.Cancelled);
 
         public void Dispose()
         {
-            if (disposed) return;
+            if (disposed)
+            {
+                return;
+            }
             disposed = true;
             http.Dispose();
             dispatch.Dispose();

Client/Assets/Scripts/Core/KV/KvSyncModels.cs

@@ -9,67 +9,145 @@ using System.Text;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 
-namespace game.PlayerDataStorage
+namespace Core.KV
 {
-    public enum PlayerKVSyncStatus { NotLoaded, Ready, ReadFailed, Conflict, UnknownOutcome, Unauthorized, StorageError, Closed }
+    public enum KVSyncStatus
-    public enum PlayerKVOpenError { None, Validation, Busy, StorageError, RecoveryRequired }
-    public enum PlayerKVChangeError { None, Validation, Blocked, StorageError }
-
-    public sealed class PlayerKVStateResult
     {
-        public bool Success => Error == PlayerKVChangeError.None;
+        NotLoaded,
-        public PlayerKVChangeError Error { get; }
+        Ready,
-        public long AttemptSequence { get; }
+        ReadFailed,
-        public long Revision { get; }
+        Conflict,
-        public bool LocalCommitMayHaveSucceeded { get; }
+        UnknownOutcome,
-        internal PlayerKVStateResult(PlayerKVChangeError error, long sequence = 0, long revision = 0, bool uncertain = false)
+        Unauthorized,
-        { Error = error; AttemptSequence = sequence; Revision = revision; LocalCommitMayHaveSucceeded = uncertain; }
+        StorageError,
+        Closed
+    }
+    public enum KVOpenError
+    {
+        None,
+        Validation,
+        Busy,
+        StorageError,
+        RecoveryRequired
+    }
+    public enum KVChangeError
+    {
+        None,
+        Validation,
+        Blocked,
+        StorageError
     }
 
-    public sealed class PlayerKVOpenResult
+    public sealed class KvStateResult
     {
-        public bool Success => Error == PlayerKVOpenError.None;
+        public bool Success => Error == KVChangeError.None;
-        public PlayerKVOpenError Error { get; }
+        public KVChangeError Error
-        public PlayerKVSyncState State { get; }
+        {
-        internal PlayerKVOpenResult(PlayerKVOpenError error, PlayerKVSyncState state = null) { Error = error; State = state; }
+            get;
+        }
+        public long AttemptSequence
+        {
+            get;
+        }
+        public bool LocalCommitMayHaveSucceeded
+        {
+            get;
+        }
+        internal KvStateResult(KVChangeError error, long sequence = 0, bool uncertain = false)
+        {
+            Error = error;
+            AttemptSequence = sequence;
+            LocalCommitMayHaveSucceeded = uncertain;
+        }
+    }
+
+    public sealed class KvOpenResult
+    {
+        public bool Success => Error == KVOpenError.None;
+        public KVOpenError Error
+        {
+            get;
+        }
+        public KvSyncState State
+        {
+            get;
+        }
+        internal KvOpenResult(KVOpenError error, KvSyncState state = null)
+        {
+            Error = error;
+            State = state;
+        }
     }
 
     // Existence is separate from value: an empty string is not a deletion.
-    public sealed class PlayerKVValue : IEquatable<PlayerKVValue>
+    public sealed class KvValue : IEquatable<KvValue>
     {
-        public static readonly PlayerKVValue Missing = new PlayerKVValue(false, null);
+        public static readonly KvValue Missing = new KvValue(false, null);
-        public bool Exists { get; }
+        public bool Exists
-        public string Value { get; }
+        {
-        PlayerKVValue(bool exists, string value) { Exists = exists; Value = value; }
+            get;
-        public static PlayerKVValue Present(string value) => new PlayerKVValue(true, value ?? throw new ArgumentNullException(nameof(value)));
+        }
-        public bool Equals(PlayerKVValue other) => other != null && Exists == other.Exists && Value == other.Value;
+        public string Value
-        public override bool Equals(object obj) => Equals(obj as PlayerKVValue);
+        {
+            get;
+        }
+        private KvValue(bool exists, string value)
+        {
+            Exists = exists;
+            Value = value;
+        }
+        public static KvValue Present(string value) => new KvValue(true, value ?? throw new ArgumentNullException(nameof(value)));
+        public bool Equals(KvValue other) => other != null && Exists == other.Exists && Value == other.Value;
+        public override bool Equals(object obj) => Equals(obj as KvValue);
         public override int GetHashCode() => Exists ? (Value.GetHashCode() ^ 397) : 0;
-        internal static PlayerKVValue At(IReadOnlyDictionary<string, string> data, string key) =>
+        internal static KvValue At(IReadOnlyDictionary<string, string> data, string key) =>
             data.TryGetValue(key, out var value) ? Present(value) : Missing;
     }
 
-    public sealed class PlayerKVChange
+    public sealed class KvChange
     {
-        public string Key { get; }
+        public string Key
-        public long Sequence { get; }
+        {
-        public PlayerKVValue BaseValue { get; }
+            get;
-        public PlayerKVValue Target { get; }
+        }
-        internal PlayerKVChange(string key, long sequence, PlayerKVValue baseline, PlayerKVValue target)
+        public long Sequence
-        { Key = key; Sequence = sequence; BaseValue = baseline; Target = target; }
+        {
-        internal PlayerKVChange WithBase(PlayerKVValue baseline) => new PlayerKVChange(Key, Sequence, baseline, Target);
+            get;
+        }
+        public KvValue BaseValue
+        {
+            get;
+        }
+        public KvValue Target
+        {
+            get;
+        }
+        internal KvChange(string key, long sequence, KvValue baseline, KvValue target)
+        {
+            Key = key;
+            Sequence = sequence;
+            BaseValue = baseline;
+            Target = target;
+        }
+        internal KvChange WithBase(KvValue baseline) => new KvChange(Key, Sequence, baseline, Target);
     }
 
-    public sealed class PlayerKVBatch
+    public sealed class KvBatch
     {
-        public string Id { get; }
+        public string Id
-        public IReadOnlyList<PlayerKVChange> Items { get; }
+        {
+            get;
+        }
+        public IReadOnlyList<KvChange> Items
+        {
+            get;
+        }
         public bool IsDelete => !Items[0].Target.Exists;
         public bool IsOrdinary
         {
             get;
         }
-        internal PlayerKVBatch(string id, IEnumerable<PlayerKVChange> items, bool ordinary = false)
+        internal KvBatch(string id, IEnumerable<KvChange> items, bool ordinary = false)
         {
             Id = id;
             Items = Array.AsReadOnly(items.ToArray());
@@ -77,74 +155,66 @@ namespace game.PlayerDataStorage
         }
     }
 
-    public sealed class PlayerKVDiagnosticSnapshot
+    public sealed class KvDiagnosticSnapshot
     {
-        public long Revision { get; }
+        public long NextSequence
-        public long NextSequence { get; }
-        public bool HasBaseline { get; }
-        public bool AuthenticationInvalid { get; }
-        public IReadOnlyDictionary<string, string> Baseline { get; }
-        public IReadOnlyDictionary<string, string> LocalOnly { get; }
-        public IReadOnlyDictionary<string, PlayerKVChange> Pending { get; }
-        public IReadOnlyDictionary<string, PlayerKVValue> ConflictObservations { get; }
-        public PlayerKVBatch ActiveBatch { get; }
-        public PlayerKVBatch UnknownBatch { get; }
-        public IReadOnlyDictionary<string, string> LocalData
         {
             get;
         }
-        public IReadOnlyDictionary<string, long> LocalUpdateTicks
+        public KvBatch ActiveBatch
         {
             get;
         }
-        public IReadOnlyList<IReadOnlyDictionary<string, PlayerKVChange>> OrdinaryBuffers
+        public KvBatch UnknownBatch
         {
             get;
         }
-        public IReadOnlyList<PlayerKVBatch> PreparedOrdinaryBatches
+        public IReadOnlyList<IReadOnlyDictionary<string, KvChange>> OrdinaryBuffers
         {
             get;
         }
-        public IReadOnlyList<PlayerKVBatch> OrdinaryUnknownBatches
+        public IReadOnlyList<KvBatch> PreparedOrdinaryBatches
         {
             get;
         }
-        public IReadOnlyDictionary<string, PlayerKVChange> LegacyPending
+        public IReadOnlyList<KvBatch> OrdinaryUnknownBatches
         {
             get;
         }
-        public IReadOnlyDictionary<string, PlayerKVChange> ExplicitDeletes
+        public IReadOnlyDictionary<string, KvChange> LegacyPending
         {
             get;
         }
-        internal PlayerKVDiagnosticSnapshot(KVSnapshot source)
+        public IReadOnlyDictionary<string, KvChange> ExplicitDeletes
         {
-            Revision = source.Revision; NextSequence = source.NextSequence; HasBaseline = source.HasBaseline;
+            get;
-            AuthenticationInvalid = source.AuthenticationInvalid;
+        }
-            Baseline = ReadOnly(source.Baseline); LocalOnly = ReadOnly(source.LocalOnly);
+        internal KvDiagnosticSnapshot(KvSnapshot source)
-            Pending = ReadOnly(source.Pending); ConflictObservations = ReadOnly(source.Conflicts);
+        {
-            ActiveBatch = source.Active; UnknownBatch = source.Unknown;
+            NextSequence = source.NextSequence;
-            LocalData = ReadOnly(source.LocalData);
+            ActiveBatch = source.Active;
-            LocalUpdateTicks = ReadOnly(source.LocalUpdateTicks);
+            UnknownBatch = source.Unknown;
             OrdinaryBuffers = Array.AsReadOnly(source.OrdinaryBuffers.Select(bucket => ReadOnly(bucket)).ToArray());
             PreparedOrdinaryBatches = Array.AsReadOnly(source.PreparedOrdinaryBatches.ToArray());
             OrdinaryUnknownBatches = Array.AsReadOnly(source.OrdinaryUnknownBatches.ToArray());
             LegacyPending = ReadOnly(source.LegacyPending);
             ExplicitDeletes = ReadOnly(source.ExplicitDeletes);
         }
-        static IReadOnlyDictionary<string, T> ReadOnly<T>(Dictionary<string, T> source) =>
+        private static IReadOnlyDictionary<string, T> ReadOnly<T>(Dictionary<string, T> source) =>
             new ReadOnlyDictionary<string, T>(new Dictionary<string, T>(source, StringComparer.Ordinal));
     }
 
-    internal sealed class KVIdentity
+    internal sealed class KvIdentity
     {
         internal readonly string Api, PlayerId, DirectoryPath;
-        internal KVIdentity(string root, Uri api, string playerId)
+        internal KvIdentity(string root, Uri api, string playerId)
         {
             if (string.IsNullOrWhiteSpace(root) || !Path.IsPathFullyQualified(root) || api == null || !api.IsAbsoluteUri ||
                 (api.Scheme != "http" && api.Scheme != "https") || api.UserInfo.Length != 0 || api.Query.Length != 0 || api.Fragment.Length != 0 ||
                 !long.TryParse(playerId, NumberStyles.None, CultureInfo.InvariantCulture, out var id) || id <= 0)
+            {
                 throw new ArgumentException("Invalid KV cache identity.");
+            }
             Api = api.AbsoluteUri.TrimEnd('/') + "/";
             PlayerId = id.ToString(CultureInfo.InvariantCulture);
             using (var hash = SHA256.Create())
@@ -156,7 +226,7 @@ namespace game.PlayerDataStorage
         }
     }
 
-    internal sealed class KVSnapshot
+    internal sealed class KvSnapshot
     {
         internal long Revision, NextSequence = 1;
         internal bool HasBaseline, AuthenticationInvalid;
@@ -169,34 +239,23 @@ namespace game.PlayerDataStorage
         internal HashSet<string> ImmediatePreservedKeys = new HashSet<string>(StringComparer.Ordinal);
         // Only v1/v2 conversion can populate this lower layer; the first successful Get removes it.
         internal Dictionary<string, string> LegacyLocalOnlyUnderImmediate = new Dictionary<string, string>(StringComparer.Ordinal);
-        internal List<Dictionary<string, PlayerKVChange>> OrdinaryBuffers = Enumerable.Range(0, 5)
+        internal List<Dictionary<string, KvChange>> OrdinaryBuffers = Enumerable.Range(0, 5)
-            .Select(_ => new Dictionary<string, PlayerKVChange>(StringComparer.Ordinal)).ToList();
+            .Select(_ => new Dictionary<string, KvChange>(StringComparer.Ordinal)).ToList();
-        internal List<PlayerKVBatch> PreparedOrdinaryBatches = new List<PlayerKVBatch>();
+        internal List<KvBatch> PreparedOrdinaryBatches = new List<KvBatch>();
-        internal List<PlayerKVBatch> OrdinaryUnknownBatches = new List<PlayerKVBatch>();
+        internal List<KvBatch> OrdinaryUnknownBatches = new List<KvBatch>();
-        internal Dictionary<string, PlayerKVChange> LegacyPending = new Dictionary<string, PlayerKVChange>(StringComparer.Ordinal);
+        internal Dictionary<string, KvChange> LegacyPending = new Dictionary<string, KvChange>(StringComparer.Ordinal);
-        internal Dictionary<string, PlayerKVChange> ExplicitDeletes = new Dictionary<string, PlayerKVChange>(StringComparer.Ordinal);
+        internal Dictionary<string, KvChange> ExplicitDeletes = new Dictionary<string, KvChange>(StringComparer.Ordinal);
-        internal Dictionary<string, PlayerKVValue> Conflicts = new Dictionary<string, PlayerKVValue>(StringComparer.Ordinal);
+        internal Dictionary<string, KvValue> Conflicts = new Dictionary<string, KvValue>(StringComparer.Ordinal);
-        internal Dictionary<long, PlayerKVChange> RemoteOnlyWrites = new Dictionary<long, PlayerKVChange>();
+        internal Dictionary<long, KvChange> RemoteOnlyWrites = new Dictionary<long, KvChange>();
-        internal PlayerKVBatch Active, Unknown;
+        internal KvBatch Active, Unknown;
 
-        // Compatibility diagnostics only. A key projection loses cross-bucket sequence history.
+        internal IEnumerable<KvChange> Unsent()
-        internal Dictionary<string, PlayerKVChange> Pending => Unsent().GroupBy(item => item.Key, StringComparer.Ordinal)
-            .ToDictionary(group => group.Key, group => group.OrderBy(item => item.Sequence).Last(), StringComparer.Ordinal);
-        internal Dictionary<string, string> LocalOnly => LocalOrigins.Where(pair => pair.Value.LocalOnly && LocalData.ContainsKey(pair.Key))
-            .ToDictionary(pair => pair.Key, pair => LocalData[pair.Key], StringComparer.Ordinal);
-        internal IEnumerable<PlayerKVChange> Unsent()
         {
             return OrdinaryBuffers.SelectMany(bucket => bucket.Values).Concat(LegacyPending.Values).Concat(ExplicitDeletes.Values);
         }
-        internal IEnumerable<PlayerKVChange> OrdinaryOutstanding()
+        internal KvSnapshot Clone()
         {
-            return OrdinaryBuffers.SelectMany(bucket => bucket.Values)
+            return new KvSnapshot
-                .Concat(PreparedOrdinaryBatches.SelectMany(batch => batch.Items))
-                .Concat(Active != null && Active.IsOrdinary ? Active.Items : Enumerable.Empty<PlayerKVChange>());
-        }
-        internal KVSnapshot Clone()
-        {
-            return new KVSnapshot
             {
                 Revision = Revision, NextSequence = NextSequence, HasBaseline = HasBaseline, AuthenticationInvalid = AuthenticationInvalid,
                 Baseline = new Dictionary<string, string>(Baseline, StringComparer.Ordinal),
@@ -205,19 +264,19 @@ namespace game.PlayerDataStorage
                 LocalOrigins = new Dictionary<string, (bool LocalOnly, long Sequence)>(LocalOrigins, StringComparer.Ordinal),
                 ImmediatePreservedKeys = new HashSet<string>(ImmediatePreservedKeys, StringComparer.Ordinal),
                 LegacyLocalOnlyUnderImmediate = new Dictionary<string, string>(LegacyLocalOnlyUnderImmediate, StringComparer.Ordinal),
-                OrdinaryBuffers = OrdinaryBuffers.Select(bucket => new Dictionary<string, PlayerKVChange>(bucket, StringComparer.Ordinal)).ToList(),
+                OrdinaryBuffers = OrdinaryBuffers.Select(bucket => new Dictionary<string, KvChange>(bucket, StringComparer.Ordinal)).ToList(),
-                PreparedOrdinaryBatches = new List<PlayerKVBatch>(PreparedOrdinaryBatches),
+                PreparedOrdinaryBatches = new List<KvBatch>(PreparedOrdinaryBatches),
-                OrdinaryUnknownBatches = new List<PlayerKVBatch>(OrdinaryUnknownBatches),
+                OrdinaryUnknownBatches = new List<KvBatch>(OrdinaryUnknownBatches),
-                LegacyPending = new Dictionary<string, PlayerKVChange>(LegacyPending, StringComparer.Ordinal),
+                LegacyPending = new Dictionary<string, KvChange>(LegacyPending, StringComparer.Ordinal),
-                ExplicitDeletes = new Dictionary<string, PlayerKVChange>(ExplicitDeletes, StringComparer.Ordinal),
+                ExplicitDeletes = new Dictionary<string, KvChange>(ExplicitDeletes, StringComparer.Ordinal),
-                Conflicts = new Dictionary<string, PlayerKVValue>(Conflicts, StringComparer.Ordinal),
+                Conflicts = new Dictionary<string, KvValue>(Conflicts, StringComparer.Ordinal),
                 Active = Active, Unknown = Unknown,
-                RemoteOnlyWrites = new Dictionary<long, PlayerKVChange>(RemoteOnlyWrites)
+                RemoteOnlyWrites = new Dictionary<long, KvChange>(RemoteOnlyWrites)
             };
         }
         internal static bool ValidKey(string key) => !string.IsNullOrEmpty(key) && key.Length <= 128;
 
-        internal string Encode(KVIdentity identity)
+        internal string Encode(KvIdentity identity)
         {
             var conflicts = new JObject();
             foreach (var pair in Conflicts)
@@ -245,20 +304,20 @@ namespace game.PlayerDataStorage
                 ["remoteOnlyWrites"] = ChangesJson(RemoteOnlyWrites.Values)
             }.ToString(Formatting.None);
         }
-        private static JArray ChangesJson(IEnumerable<PlayerKVChange> values)
+        private static JArray ChangesJson(IEnumerable<KvChange> values)
         {
             return new JArray(values.OrderBy(item => item.Sequence).Select(ChangeJson));
         }
-        private static JObject ValueJson(PlayerKVValue value)
+        private static JObject ValueJson(KvValue value)
         {
             return new JObject { ["exists"] = value.Exists, ["value"] = value.Value };
         }
-        private static JObject ChangeJson(PlayerKVChange item)
+        private static JObject ChangeJson(KvChange item)
         {
             return new JObject { ["key"] = item.Key, ["sequence"] = item.Sequence,
                 ["base"] = ValueJson(item.BaseValue), ["target"] = ValueJson(item.Target) };
         }
-        private static JToken BatchJson(PlayerKVBatch batch)
+        private static JToken BatchJson(KvBatch batch)
         {
             if (batch == null)
             {
@@ -267,7 +326,7 @@ namespace game.PlayerDataStorage
             return new JObject { ["id"] = batch.Id, ["ordinary"] = batch.IsOrdinary, ["items"] = ChangesJson(batch.Items) };
         }
 
-        internal static KVSnapshot Decode(string text, KVIdentity identity)
+        internal static KvSnapshot Decode(string text, KvIdentity identity)
         {
             JObject root;
             using (var reader = new JsonTextReader(new StringReader(text)) { DateParseHandling = DateParseHandling.None })
@@ -283,7 +342,7 @@ namespace game.PlayerDataStorage
             {
                 throw Invalid();
             }
-            var result = new KVSnapshot
+            var result = new KvSnapshot
             {
                 Revision = Integer(root, "revision"), NextSequence = Integer(root, "nextSequence"),
                 HasBaseline = Boolean(root, "hasBaseline"), AuthenticationInvalid = Boolean(root, "authenticationInvalid"),
@@ -350,13 +409,13 @@ namespace game.PlayerDataStorage
             result.Validate();
             return result;
         }
-        private static Dictionary<string, PlayerKVChange> Changes(JToken array)
+        private static Dictionary<string, KvChange> Changes(JToken array)
         {
             if (array.Type != JTokenType.Array)
             {
                 throw Invalid();
             }
-            var values = new Dictionary<string, PlayerKVChange>(StringComparer.Ordinal);
+            var values = new Dictionary<string, KvChange>(StringComparer.Ordinal);
             foreach (var token in array)
             {
                 var item = Change(token);
@@ -368,9 +427,9 @@ namespace game.PlayerDataStorage
             }
             return values;
         }
-        private static List<PlayerKVBatch> ReadBatches(JToken root, string name)
+        private static List<KvBatch> ReadBatches(JToken root, string name)
         {
-            var result = new List<PlayerKVBatch>();
+            var result = new List<KvBatch>();
             foreach (var item in Field(root, name, JTokenType.Array))
             {
                 var wrapper = new JObject { ["batch"] = item.DeepClone() };
@@ -384,11 +443,11 @@ namespace game.PlayerDataStorage
             return result;
         }
 
-        private static void DecodeLegacy(JObject root, long version, KVSnapshot result)
+        private static void DecodeLegacy(JObject root, long version, KvSnapshot result)
         {
             var pending = Changes(Field(root, "pending", JTokenType.Array));
             var localOnly = Strings(Field(root, "localOnly", JTokenType.Object));
-            var overrides = new Dictionary<string, PlayerKVValue>(StringComparer.Ordinal);
+            var overrides = new Dictionary<string, KvValue>(StringComparer.Ordinal);
             if (version == 2)
             {
                 foreach (var property in ((JObject)Field(root, "remoteLocalOverrides", JTokenType.Object)).Properties())
@@ -459,7 +518,7 @@ namespace game.PlayerDataStorage
                 }
             }
         }
-        private static void ApplyValue(Dictionary<string, string> values, string key, PlayerKVValue value)
+        private static void ApplyValue(Dictionary<string, string> values, string key, KvValue value)
         {
             if (value.Exists)
             {
@@ -483,8 +542,8 @@ namespace game.PlayerDataStorage
             {
                 throw Invalid();
             }
-            var sequences = new Dictionary<long, PlayerKVChange>();
+            var sequences = new Dictionary<long, KvChange>();
-            void Add(PlayerKVChange item, bool sourceReference = false)
+            void Add(KvChange item, bool sourceReference = false)
             {
                 if (!ValidKey(item.Key) || item.Sequence < 1 || item.Sequence >= NextSequence)
                 {
@@ -537,49 +596,70 @@ namespace game.PlayerDataStorage
                 throw Invalid();
             }
         }
-        static Dictionary<string, string> Strings(JToken value)
+        private static Dictionary<string, string> Strings(JToken value)
         {
             var result = new Dictionary<string, string>(StringComparer.Ordinal);
             foreach (var property in ((JObject)value).Properties())
             {
-                if (!ValidKey(property.Name) || property.Value.Type != JTokenType.String) throw Invalid();
+                if (!ValidKey(property.Name) || property.Value.Type != JTokenType.String)
+                {
+                    throw Invalid();
+                }
                 result.Add(property.Name, (string)property.Value);
             }
             return result;
         }
-        static PlayerKVChange Change(JToken item)
+        private static KvChange Change(JToken item)
         {
             var key = String(item, "key");
-            if (!ValidKey(key)) throw Invalid();
+            if (!ValidKey(key))
-            return new PlayerKVChange(key, Integer(item, "sequence"), Value(Field(item, "base", JTokenType.Object)), Value(Field(item, "target", JTokenType.Object)));
+            {
+                throw Invalid();
+            }
+            return new KvChange(key, Integer(item, "sequence"), Value(Field(item, "base", JTokenType.Object)), Value(Field(item, "target", JTokenType.Object)));
         }
-        static PlayerKVValue Value(JToken item)
+        private static KvValue Value(JToken item)
         {
             var exists = Boolean(item, "exists");
             var value = Field(item, "value", exists ? JTokenType.String : JTokenType.Null);
-            return exists ? PlayerKVValue.Present((string)value) : PlayerKVValue.Missing;
+            return exists ? KvValue.Present((string)value) : KvValue.Missing;
         }
-        static PlayerKVBatch Batch(JToken parent, string name, bool withKind = false)
+        private static KvBatch Batch(JToken parent, string name, bool withKind = false)
         {
             var node = parent[name];
-            if (node == null) throw Invalid();
+            if (node == null)
-            if (node.Type == JTokenType.Null) return null;
+            {
+                throw Invalid();
+            }
+            if (node.Type == JTokenType.Null)
+            {
+                return null;
+            }
             var id = String(node, "id");
-            if (!Guid.TryParseExact(id, "N", out _)) throw Invalid();
+            if (!Guid.TryParseExact(id, "N", out _))
+            {
+                throw Invalid();
+            }
             var items = Field(node, "items", JTokenType.Array).Select(Change).ToArray();
             if (items.Length == 0 || items.Length > 10 || items.Select(i => i.Key).Distinct(StringComparer.Ordinal).Count() != items.Length ||
                 items.Select(i => i.Sequence).Distinct().Count() != items.Length || items.Any(i => i.Target.Exists != items[0].Target.Exists) ||
-                !items.Select(i => i.Sequence).SequenceEqual(items.Select(i => i.Sequence).OrderBy(s => s))) throw Invalid();
+                !items.Select(i => i.Sequence).SequenceEqual(items.Select(i => i.Sequence).OrderBy(s => s)))
-            return new PlayerKVBatch(id, items, withKind && Boolean(node, "ordinary"));
+            {
+                throw Invalid();
+            }
+            return new KvBatch(id, items, withKind && Boolean(node, "ordinary"));
         }
-        static JToken Field(JToken parent, string name, JTokenType type)
+        private static JToken Field(JToken parent, string name, JTokenType type)
         {
-            if (!(parent is JObject obj) || obj[name] == null || obj[name].Type != type) throw Invalid();
+            if (!(parent is JObject obj) || obj[name] == null || obj[name].Type != type)
+            {
+                throw Invalid();
+            }
             return obj[name];
         }
-        static string String(JToken parent, string name) => (string)Field(parent, name, JTokenType.String);
+        private static string String(JToken parent, string name) => (string)Field(parent, name, JTokenType.String);
-        static long Integer(JToken parent, string name) => (long)Field(parent, name, JTokenType.Integer);
+        private static long Integer(JToken parent, string name) => (long)Field(parent, name, JTokenType.Integer);
-        static bool Boolean(JToken parent, string name) => (bool)Field(parent, name, JTokenType.Boolean);
+        private static bool Boolean(JToken parent, string name) => (bool)Field(parent, name, JTokenType.Boolean);
         internal static JsonException Invalid() => new JsonException("Invalid KV cache snapshot.");
     }
 }

Client/Assets/Scripts/Core/KV/KvSyncState.cs

@@ -4,23 +4,23 @@ using System.Collections.ObjectModel;
 using System.IO;
 using System.Linq;
 
-namespace game.PlayerDataStorage
+namespace Core.KV
 {
     /// <summary>
     /// Synchronous, fixed-identity cache state. No HTTP, gameplay initialization or timers.
     /// All transitions and disk writes share a gate. The phase-3B owner must drain its
     /// admitted network operations before disposing this state and its filesystem lease.
     /// </summary>
-    public sealed class PlayerKVSyncState : IDisposable
+    public sealed class KvSyncState : IDisposable
     {
         private readonly object gate = new object();
-        private readonly PlayerKVCacheStore store;
+        private readonly KvCacheStore store;
-        private KVSnapshot snapshot;
+        private KvSnapshot snapshot;
-        private PlayerKVSyncStatus status;
+        private KVSyncStatus status;
         private readonly HashSet<long> recoveredImmediate;
         private bool recoverImmediateView = true;
         private bool recoveredOrdinaryUnknown;
-        private KVSnapshot comparisonLocal;
+        private KvSnapshot comparisonLocal;
         private Dictionary<string, string> comparisonRemote;
         private Dictionary<string, DateTime> comparisonTimes;
         private Dictionary<string, string> comparisonView;
@@ -45,13 +45,19 @@ namespace game.PlayerDataStorage
                 }
             }
         }
-        public PlayerKVSyncStatus Status { get { lock (gate) return status; } }
+        public KVSyncStatus Status
-        public string ApiBaseUri { get; }
-        public string PlayerId { get; }
-
-        PlayerKVSyncState(KVIdentity identity, PlayerKVCacheStore store, KVSnapshot snapshot)
         {
-            ApiBaseUri = identity.Api; PlayerId = identity.PlayerId; this.store = store; this.snapshot = snapshot;
+            get
+            {
+                lock (gate)
+                    return status;
+            }
+        }
+
+        private KvSyncState(KvCacheStore store, KvSnapshot snapshot)
+        {
+            this.store = store;
+            this.snapshot = snapshot;
             recoveredImmediate = new HashSet<long>(snapshot.RemoteOnlyWrites.Keys);
             // Authentication belongs to the old owner. A new owner must obtain a fresh
             // successful Get before Ready; this never clears a persisted unknown batch.
@@ -71,39 +77,46 @@ namespace game.PlayerDataStorage
             }
             recoveredOrdinaryUnknown = snapshot.OrdinaryUnknownBatches.Count != 0;
             status = snapshot.Unknown != null || recoveredOrdinaryUnknown
-                ? PlayerKVSyncStatus.UnknownOutcome : PlayerKVSyncStatus.NotLoaded;
+                ? KVSyncStatus.UnknownOutcome : KVSyncStatus.NotLoaded;
         }
 
-        public static PlayerKVOpenResult Open(string root, Uri api, string playerId) => Open(root, api, playerId, null);
+        public static KvOpenResult Open(string root, Uri api, string playerId)
-        internal static PlayerKVOpenResult Open(string root, Uri api, string playerId, Action<KVCacheWriteStage> fault)
         {
-            KVIdentity identity;
+            KvIdentity identity;
-            try { identity = new KVIdentity(root, api, playerId); }
+            try
+            {
+                identity = new KvIdentity(root, api, playerId);
+            }
             catch (Exception ex) when (ex is ArgumentException || ex is NotSupportedException || ex is PathTooLongException)
-            { return new PlayerKVOpenResult(PlayerKVOpenError.Validation); }
+            {
-            var error = PlayerKVCacheStore.Open(identity, fault, out var store, out var snapshot);
+                return new KvOpenResult(KVOpenError.Validation);
-            return error == PlayerKVOpenError.None ? new PlayerKVOpenResult(error, new PlayerKVSyncState(identity, store, snapshot)) : new PlayerKVOpenResult(error);
+            }
+            var error = KvCacheStore.Open(identity, out var store, out var snapshot);
+            return error == KVOpenError.None ? new KvOpenResult(error, new KvSyncState(store, snapshot)) : new KvOpenResult(error);
         }
 
-        public PlayerKVDiagnosticSnapshot Inspect() { lock (gate) return new PlayerKVDiagnosticSnapshot(snapshot); }
+        public KvDiagnosticSnapshot Inspect()
+        {
+            lock (gate)
+                return new KvDiagnosticSnapshot(snapshot);
+        }
 
         public IReadOnlyDictionary<string, string> ReadLocal()
         {
             lock (gate)
             {
-                if (status != PlayerKVSyncStatus.Ready) throw new InvalidOperationException("KV data is not ready.");
+                if (status != KVSyncStatus.Ready)
+                {
+                    throw new InvalidOperationException("KV data is not ready.");
+                }
                 return new ReadOnlyDictionary<string, string>(ReadView());
             }
         }
 
         // The caller must supply a successful complete Get. Failed reads must use RecordReadFailure.
-        public PlayerKVStateResult Reconcile(IReadOnlyDictionary<string, string> remote)
-        {
-            return Reconcile(remote, null, false);
-        }
 
-        internal PlayerKVStateResult Reconcile(IReadOnlyDictionary<string, string> remote,
+        internal KvStateResult Reconcile(IReadOnlyDictionary<string, string> remote,
-            IReadOnlyDictionary<string, DateTime> updatedAtUtc, bool prepareOriginalComparison)
+            IReadOnlyDictionary<string, DateTime> updatedAtUtc)
         {
             lock (gate)
             {
@@ -111,55 +124,42 @@ namespace game.PlayerDataStorage
                 {
                     return Blocked();
                 }
-                if (remote == null || remote.Any(pair => !KVSnapshot.ValidKey(pair.Key) || pair.Value == null))
+                if (remote == null || remote.Any(pair => !KvSnapshot.ValidKey(pair.Key) || pair.Value == null))
                 {
                     return Invalid();
                 }
-                if (prepareOriginalComparison && (!recoverImmediateView || updatedAtUtc == null ||
+                if (!recoverImmediateView || updatedAtUtc == null ||
                     updatedAtUtc.Count != remote.Count || remote.Keys.Any(key => !updatedAtUtc.ContainsKey(key)) ||
-                    updatedAtUtc.Values.Any(time => time.Kind != DateTimeKind.Utc)))
+                    updatedAtUtc.Values.Any(time => time.Kind != DateTimeKind.Utc))
                 {
                     return Invalid();
                 }
                 var original = snapshot;
                 var copy = snapshot.Clone();
                 copy.Conflicts.Clear();
-                if (copy.Unknown != null || (recoveredOrdinaryUnknown && !prepareOriginalComparison))
+                if (copy.Unknown != null)
                 {
                     foreach (var item in copy.Unsent())
                     {
-                        copy.Conflicts[item.Key] = PlayerKVValue.At(remote, item.Key);
+                        copy.Conflicts[item.Key] = KvValue.At(remote, item.Key);
                     }
-                    return Commit(copy, PlayerKVSyncStatus.UnknownOutcome);
+                    return Commit(copy, KVSyncStatus.UnknownOutcome);
                 }
-                var recoveringKeys = recoverImmediateView
+                var recoveringKeys = new HashSet<string>(copy.ImmediatePreservedKeys, StringComparer.Ordinal);
-                    ? new HashSet<string>(copy.ImmediatePreservedKeys, StringComparer.Ordinal)
+                foreach (var sequence in recoveredImmediate)
-                    : new HashSet<string>(StringComparer.Ordinal);
-                if (recoverImmediateView)
                 {
-                    foreach (var sequence in recoveredImmediate)
+                    var source = copy.RemoteOnlyWrites[sequence];
-                    {
+                    Rebase(copy, source.Key, KvValue.At(remote, source.Key));
-                        var source = copy.RemoteOnlyWrites[sequence];
-                        Rebase(copy, source.Key, PlayerKVValue.At(remote, source.Key));
-                        if (!prepareOriginalComparison)
-                        {
-                            copy.RemoteOnlyWrites.Remove(sequence);
-                        }
-                    }
-                    if (!prepareOriginalComparison)
-                    {
-                        copy.ImmediatePreservedKeys.Clear();
-                    }
                 }
                 foreach (var source in Sources(copy))
                 {
-                    if (prepareOriginalComparison && copy.OrdinaryBuffers.Contains(source))
+                    if (copy.OrdinaryBuffers.Contains(source))
                     {
                         continue;
                     }
                     foreach (var item in source.Values.ToArray())
                     {
-                        var observed = PlayerKVValue.At(remote, item.Key);
+                        var observed = KvValue.At(remote, item.Key);
                         if (observed.Equals(item.Target))
                         {
                             source.Remove(item.Key);
@@ -172,7 +172,7 @@ namespace game.PlayerDataStorage
                 }
                 foreach (var item in copy.PreparedOrdinaryBatches.SelectMany(batch => batch.Items))
                 {
-                    var observed = PlayerKVValue.At(remote, item.Key);
+                    var observed = KvValue.At(remote, item.Key);
                     if (!observed.Equals(item.Target) && !observed.Equals(item.BaseValue))
                     {
                         copy.Conflicts[item.Key] = observed;
@@ -183,13 +183,13 @@ namespace game.PlayerDataStorage
                 {
                     if (pair.Value.LocalOnly)
                     {
-                        if (recoverImmediateView && copy.LegacyLocalOnlyUnderImmediate.TryGetValue(pair.Key, out var lower))
+                        if (copy.LegacyLocalOnlyUnderImmediate.TryGetValue(pair.Key, out var lower))
                         {
                             visible[pair.Key] = lower;
                         }
                         else
                         {
-                            Apply(visible, pair.Key, PlayerKVValue.At(copy.LocalData, pair.Key));
+                            Apply(visible, pair.Key, KvValue.At(copy.LocalData, pair.Key));
                         }
                     }
                     else
@@ -197,14 +197,10 @@ namespace game.PlayerDataStorage
                         var source = copy.Unsent().Concat(copy.PreparedOrdinaryBatches.SelectMany(batch => batch.Items))
                             .Concat(copy.OrdinaryUnknownBatches.SelectMany(batch => batch.Items))
                             .FirstOrDefault(item => item.Sequence == pair.Value.Sequence);
-                        if (!recoverImmediateView)
+                        if (source != null)
-                        {
-                            Apply(visible, pair.Key, PlayerKVValue.At(copy.LocalData, pair.Key));
-                        }
-                        else if (source != null)
                         {
                             Apply(visible, pair.Key, recoveringKeys.Contains(pair.Key)
-                                ? source.Target : PlayerKVValue.At(copy.LocalData, pair.Key));
+                                ? source.Target : KvValue.At(copy.LocalData, pair.Key));
                         }
                         else
                         {
@@ -212,41 +208,17 @@ namespace game.PlayerDataStorage
                         }
                     }
                 }
-                // An immediate write preserves its view until a new owner performs its initial Get.
-                foreach (var key in copy.ImmediatePreservedKeys)
-                {
-                    if (prepareOriginalComparison && recoveringKeys.Contains(key))
-                    {
-                        continue;
-                    }
-                    Apply(visible, key, PlayerKVValue.At(copy.LocalData, key));
-                }
-                if (recoverImmediateView && !prepareOriginalComparison)
-                {
-                    copy.LegacyLocalOnlyUnderImmediate.Clear();
-                }
-                if (!prepareOriginalComparison)
-                {
-                    copy.LocalData = visible;
-                }
                 copy.Baseline = remote.ToDictionary(pair => pair.Key, pair => pair.Value, StringComparer.Ordinal);
                 copy.HasBaseline = true;
-                var reconciled = Commit(copy, copy.Conflicts.Count == 0 ? PlayerKVSyncStatus.Ready : PlayerKVSyncStatus.Conflict);
+                var reconciled = Commit(copy, copy.Conflicts.Count == 0 ? KVSyncStatus.Ready : KVSyncStatus.Conflict);
                 if (reconciled.Success)
                 {
                     recoverImmediateView = false;
-                    if (prepareOriginalComparison)
+                    comparisonLocal = original;
-                    {
+                    comparisonRemote = remote.ToDictionary(pair => pair.Key, pair => pair.Value, StringComparer.Ordinal);
-                        comparisonLocal = original;
+                    comparisonTimes = updatedAtUtc.ToDictionary(pair => pair.Key, pair => pair.Value, StringComparer.Ordinal);
-                        comparisonRemote = remote.ToDictionary(pair => pair.Key, pair => pair.Value, StringComparer.Ordinal);
+                    comparisonView = visible;
-                        comparisonTimes = updatedAtUtc.ToDictionary(pair => pair.Key, pair => pair.Value, StringComparer.Ordinal);
+                    comparisonImmediateKeys = new HashSet<string>(StringComparer.Ordinal);
-                        comparisonView = visible;
-                        comparisonImmediateKeys = new HashSet<string>(StringComparer.Ordinal);
-                    }
-                    else
-                    {
-                        recoveredImmediate.Clear();
-                    }
                 }
                 return reconciled;
             }
@@ -263,17 +235,17 @@ namespace game.PlayerDataStorage
             {
                 if (pair.Value.Sequence >= comparisonLocal.NextSequence)
                 {
-                    Apply(view, pair.Key, PlayerKVValue.At(snapshot.LocalData, pair.Key));
+                    Apply(view, pair.Key, KvValue.At(snapshot.LocalData, pair.Key));
                 }
             }
             return view;
         }
 
-        internal PlayerKVStateResult CompareDatas(long nowTicks)
+        internal KvStateResult CompareDatas(long nowTicks)
         {
             lock (gate)
             {
-                if (status != PlayerKVSyncStatus.Ready || snapshot.AuthenticationInvalid || snapshot.Active != null ||
+                if (status != KVSyncStatus.Ready || snapshot.AuthenticationInvalid || snapshot.Active != null ||
                     snapshot.Unknown != null || comparisonLocal == null)
                 {
                     return Blocked();
@@ -314,7 +286,7 @@ namespace game.PlayerDataStorage
                 var visible = ReadView();
                 foreach (var key in protectedKeys)
                 {
-                    Apply(copy.LocalData, key, PlayerKVValue.At(visible, key));
+                    Apply(copy.LocalData, key, KvValue.At(visible, key));
                 }
                 foreach (var key in comparisonLocal.LocalData.Keys.Concat(comparisonRemote.Keys).Distinct(StringComparer.Ordinal))
                 {
@@ -373,7 +345,7 @@ namespace game.PlayerDataStorage
                         copy.ImmediatePreservedKeys.Remove(key);
                     }
                 }
-                var result = Commit(copy, PlayerKVSyncStatus.Ready);
+                var result = Commit(copy, KVSyncStatus.Ready);
                 if (result.Success)
                 {
                     recoveredOrdinaryUnknown = false;
@@ -393,59 +365,51 @@ namespace game.PlayerDataStorage
             comparisonImmediateKeys = null;
         }
 
-        public PlayerKVStateResult RecordReadFailure(bool unauthorized = false)
+        public KvStateResult RecordReadFailure(bool unauthorized = false)
         {
             lock (gate)
             {
-                if (Terminal || snapshot.Active != null) return Blocked();
+                if (Terminal || snapshot.Active != null)
-                if (unauthorized)
-                {
-                    var copy = snapshot.Clone(); copy.AuthenticationInvalid = true;
-                    return Commit(copy, copy.Unknown == null ? PlayerKVSyncStatus.Unauthorized : PlayerKVSyncStatus.UnknownOutcome);
-                }
-                status = snapshot.Unknown != null ? PlayerKVSyncStatus.UnknownOutcome : PlayerKVSyncStatus.ReadFailed;
-                return new PlayerKVStateResult(PlayerKVChangeError.None, revision: snapshot.Revision);
-            }
-        }
-
-        public PlayerKVStateResult Update(string key, string value, bool remoteStore = true)
-        {
-            return Update(key, value, remoteStore, null);
-        }
-
-        internal PlayerKVStateResult Update(string key, string value, bool remoteStore, long? updateTicks)
-        {
-            lock (gate)
-            {
-                if (status != PlayerKVSyncStatus.Ready || snapshot.AuthenticationInvalid)
                 {
                     return Blocked();
                 }
-                if (!KVSnapshot.ValidKey(key) || value == null || snapshot.NextSequence == long.MaxValue ||
+                if (unauthorized)
-                    (updateTicks.HasValue && (updateTicks.Value < 0 || updateTicks.Value > DateTime.MaxValue.Ticks)))
+                {
+                    var copy = snapshot.Clone();
+                    copy.AuthenticationInvalid = true;
+                    return Commit(copy, copy.Unknown == null ? KVSyncStatus.Unauthorized : KVSyncStatus.UnknownOutcome);
+                }
+                status = snapshot.Unknown != null ? KVSyncStatus.UnknownOutcome : KVSyncStatus.ReadFailed;
+                return new KvStateResult(KVChangeError.None);
+            }
+        }
+
+        internal KvStateResult Update(string key, string value, bool remoteStore, long updateTicks)
+        {
+            lock (gate)
+            {
+                if (status != KVSyncStatus.Ready || snapshot.AuthenticationInvalid)
+                {
+                    return Blocked();
+                }
+                if (!KvSnapshot.ValidKey(key) || value == null || snapshot.NextSequence == long.MaxValue ||
+                    (updateTicks < 0 || updateTicks > DateTime.MaxValue.Ticks))
                 {
                     return Invalid();
                 }
                 var copy = snapshot.Clone();
                 var sequence = ApplyUpdate(copy, key, value, remoteStore, updateTicks);
-                return Commit(copy, PlayerKVSyncStatus.Ready, sequence);
+                return Commit(copy, KVSyncStatus.Ready, sequence);
             }
         }
 
-        private static long ApplyUpdate(KVSnapshot copy, string key, string value, bool remoteStore, long? updateTicks)
+        private static long ApplyUpdate(KvSnapshot copy, string key, string value, bool remoteStore, long updateTicks)
         {
             var sequence = copy.NextSequence++;
             copy.LocalData[key] = value;
             copy.ImmediatePreservedKeys.Remove(key);
             copy.LegacyLocalOnlyUnderImmediate.Remove(key);
-            if (updateTicks.HasValue)
+            copy.LocalUpdateTicks[key] = updateTicks;
-            {
-                copy.LocalUpdateTicks[key] = updateTicks.Value;
-            }
-            else
-            {
-                copy.LocalUpdateTicks.Remove(key);
-            }
             var acceptedRemote = false;
             if (remoteStore)
             {
@@ -456,8 +420,8 @@ namespace game.PlayerDataStorage
                         continue;
                     }
                     var baseline = bucket.TryGetValue(key, out var previous)
-                        ? previous.BaseValue : PlayerKVValue.At(copy.Baseline, key);
+                        ? previous.BaseValue : KvValue.At(copy.Baseline, key);
-                    bucket[key] = new PlayerKVChange(key, sequence, baseline, PlayerKVValue.Present(value));
+                    bucket[key] = new KvChange(key, sequence, baseline, KvValue.Present(value));
                     copy.LegacyPending.Remove(key);
                     copy.ExplicitDeletes.Remove(key);
                     acceptedRemote = true;
@@ -468,52 +432,26 @@ namespace game.PlayerDataStorage
             return sequence;
         }
 
-        public PlayerKVStateResult Delete(string key)
+        internal KvStateResult CaptureOrdinaryBatch(out KvBatch batch)
-        {
-            lock (gate)
-            {
-                if (status != PlayerKVSyncStatus.Ready || snapshot.AuthenticationInvalid)
-                {
-                    return Blocked();
-                }
-                if (!KVSnapshot.ValidKey(key) || snapshot.NextSequence == long.MaxValue)
-                {
-                    return Invalid();
-                }
-                var copy = snapshot.Clone();
-                var sequence = copy.NextSequence++;
-                var prior = copy.ExplicitDeletes.TryGetValue(key, out var previous) ? previous.BaseValue : PlayerKVValue.At(copy.Baseline, key);
-                RemoveSources(copy, key);
-                copy.ExplicitDeletes[key] = new PlayerKVChange(key, sequence, prior, PlayerKVValue.Missing);
-                copy.LocalData.Remove(key);
-                copy.LocalUpdateTicks.Remove(key);
-                copy.LocalOrigins[key] = (false, sequence);
-                copy.ImmediatePreservedKeys.Remove(key);
-                copy.LegacyLocalOnlyUnderImmediate.Remove(key);
-                return Commit(copy, PlayerKVSyncStatus.Ready, sequence);
-            }
-        }
-
-        internal PlayerKVStateResult CaptureOrdinaryBatch(out PlayerKVBatch batch)
         {
             lock (gate)
             {
                 batch = null;
-                if (status != PlayerKVSyncStatus.Ready || snapshot.AuthenticationInvalid)
+                if (status != KVSyncStatus.Ready || snapshot.AuthenticationInvalid)
                 {
                     return Blocked();
                 }
                 if (snapshot.OrdinaryBuffers[0].Count == 0)
                 {
-                    return new PlayerKVStateResult(PlayerKVChangeError.None, revision: snapshot.Revision);
+                    return new KvStateResult(KVChangeError.None);
                 }
                 var copy = snapshot.Clone();
                 var first = copy.OrdinaryBuffers[0];
-                var captured = new PlayerKVBatch(Guid.NewGuid().ToString("N"), first.Values.OrderBy(item => item.Sequence), true);
+                var captured = new KvBatch(Guid.NewGuid().ToString("N"), first.Values.OrderBy(item => item.Sequence), true);
                 copy.PreparedOrdinaryBatches.Add(captured);
                 copy.OrdinaryBuffers.RemoveAt(0);
-                copy.OrdinaryBuffers.Add(new Dictionary<string, PlayerKVChange>(StringComparer.Ordinal));
+                copy.OrdinaryBuffers.Add(new Dictionary<string, KvChange>(StringComparer.Ordinal));
-                var result = Commit(copy, PlayerKVSyncStatus.Ready);
+                var result = Commit(copy, KVSyncStatus.Ready);
                 if (result.Success)
                 {
                     batch = captured;
@@ -522,23 +460,23 @@ namespace game.PlayerDataStorage
             }
         }
 
-        internal PlayerKVStateResult BeginOrdinaryBatch(out PlayerKVBatch batch)
+        internal KvStateResult BeginOrdinaryBatch(out KvBatch batch)
         {
             lock (gate)
             {
                 batch = null;
-                if (status != PlayerKVSyncStatus.Ready || snapshot.Active != null || snapshot.Unknown != null || snapshot.AuthenticationInvalid)
+                if (status != KVSyncStatus.Ready || snapshot.Active != null || snapshot.Unknown != null || snapshot.AuthenticationInvalid)
                 {
                     return Blocked();
                 }
                 if (snapshot.PreparedOrdinaryBatches.Count == 0)
                 {
-                    return new PlayerKVStateResult(PlayerKVChangeError.None, revision: snapshot.Revision);
+                    return new KvStateResult(KVChangeError.None);
                 }
                 var copy = snapshot.Clone();
                 copy.Active = copy.PreparedOrdinaryBatches[0];
                 copy.PreparedOrdinaryBatches.RemoveAt(0);
-                var result = Commit(copy, PlayerKVSyncStatus.Ready);
+                var result = Commit(copy, KVSyncStatus.Ready);
                 if (result.Success)
                 {
                     batch = snapshot.Active;
@@ -548,17 +486,13 @@ namespace game.PlayerDataStorage
         }
 
         // Explicit requests retain their original source until the outcome is known. Ordinary buckets are never selected here.
-        public PlayerKVStateResult BeginBatch(long throughSequence, out PlayerKVBatch batch)
-        {
-            return BeginBatch(throughSequence, false, out batch);
-        }
 
-        internal PlayerKVStateResult BeginBatch(long throughSequence, bool legacyOnly, out PlayerKVBatch batch)
+        internal KvStateResult BeginBatch(long throughSequence, out KvBatch batch)
         {
             lock (gate)
             {
                 batch = null;
-                if (status != PlayerKVSyncStatus.Ready || snapshot.Active != null || snapshot.Unknown != null || snapshot.AuthenticationInvalid)
+                if (status != KVSyncStatus.Ready || snapshot.Active != null || snapshot.Unknown != null || snapshot.AuthenticationInvalid)
                 {
                     return Blocked();
                 }
@@ -566,15 +500,15 @@ namespace game.PlayerDataStorage
                 {
                     return Invalid();
                 }
-                var source = legacyOnly ? snapshot.LegacyPending.Values : snapshot.LegacyPending.Values.Concat(snapshot.ExplicitDeletes.Values);
+                var source = snapshot.LegacyPending.Values;
                 var ordered = source.Where(item => item.Sequence <= throughSequence).OrderBy(item => item.Sequence).ToArray();
                 if (ordered.Length == 0)
                 {
-                    return new PlayerKVStateResult(PlayerKVChangeError.None, revision: snapshot.Revision);
+                    return new KvStateResult(KVChangeError.None);
                 }
                 var copy = snapshot.Clone();
-                copy.Active = new PlayerKVBatch(Guid.NewGuid().ToString("N"), ordered.TakeWhile(item => item.Target.Exists == ordered[0].Target.Exists).Take(10));
+                copy.Active = new KvBatch(Guid.NewGuid().ToString("N"), ordered.TakeWhile(item => item.Target.Exists == ordered[0].Target.Exists).Take(10));
-                var result = Commit(copy, PlayerKVSyncStatus.Ready);
+                var result = Commit(copy, KVSyncStatus.Ready);
                 if (result.Success)
                 {
                     batch = snapshot.Active;
@@ -583,11 +517,11 @@ namespace game.PlayerDataStorage
             }
         }
 
-        public PlayerKVStateResult ConfirmBatch(string batchId)
+        public KvStateResult ConfirmBatch(string batchId)
         {
             lock (gate)
             {
-                if (status != PlayerKVSyncStatus.Ready || snapshot.Active == null || snapshot.Active.Id != batchId)
+                if (status != KVSyncStatus.Ready || snapshot.Active == null || snapshot.Active.Id != batchId)
                 {
                     return Blocked();
                 }
@@ -608,12 +542,12 @@ namespace game.PlayerDataStorage
                     Rebase(copy, item.Key, item.Target);
                 }
                 copy.Active = null;
-                return Commit(copy, PlayerKVSyncStatus.Ready);
+                return Commit(copy, KVSyncStatus.Ready);
             }
         }
 
         // A definitely undispatched ordinary batch retires, as the original SDK call did; explicit source references stay.
-        public PlayerKVStateResult FailBatch(string batchId, bool mayHaveCommitted, bool unauthorized = false)
+        public KvStateResult FailBatch(string batchId, bool mayHaveCommitted, bool unauthorized = false)
         {
             lock (gate)
             {
@@ -636,27 +570,27 @@ namespace game.PlayerDataStorage
                     }
                 }
                 copy.Active = null;
-                var next = copy.AuthenticationInvalid ? PlayerKVSyncStatus.Unauthorized : ordinary ? PlayerKVSyncStatus.Ready : PlayerKVSyncStatus.ReadFailed;
+                var next = copy.AuthenticationInvalid ? KVSyncStatus.Unauthorized : ordinary ? KVSyncStatus.Ready : KVSyncStatus.ReadFailed;
                 if (copy.Unknown != null)
                 {
-                    next = PlayerKVSyncStatus.UnknownOutcome;
+                    next = KVSyncStatus.UnknownOutcome;
                 }
                 return Commit(copy, next);
             }
         }
 
-        private static IEnumerable<Dictionary<string, PlayerKVChange>> Sources(KVSnapshot value)
+        private static IEnumerable<Dictionary<string, KvChange>> Sources(KvSnapshot value)
         {
             return value.OrdinaryBuffers.Concat(new[] { value.LegacyPending, value.ExplicitDeletes });
         }
-        private static void RemoveSources(KVSnapshot value, string key)
+        private static void RemoveSources(KvSnapshot value, string key)
         {
             foreach (var source in Sources(value))
             {
                 source.Remove(key);
             }
         }
-        private static void Rebase(KVSnapshot value, string key, PlayerKVValue baseline)
+        private static void Rebase(KvSnapshot value, string key, KvValue baseline)
         {
             foreach (var source in Sources(value))
             {
@@ -667,52 +601,33 @@ namespace game.PlayerDataStorage
             }
         }
 
-        internal PlayerKVStateResult PrepareImmediate(string key, string value, out PlayerKVChange operation)
+        internal KvStateResult PrepareImmediate(IReadOnlyDictionary<string, string> data,
-        {
+            out IReadOnlyList<KvChange> operations)
-            operation = null;
-            if (!KVSnapshot.ValidKey(key) || value == null)
-            {
-                // Preserve the single-key state admission order and validation result.
-                lock (gate)
-                {
-                    return status != PlayerKVSyncStatus.Ready || snapshot.AuthenticationInvalid ? Blocked() : Invalid();
-                }
-            }
-            var result = PrepareImmediate(new Dictionary<string, string> { [key] = value }, out var operations);
-            if (result.Success)
-            {
-                operation = operations[0];
-            }
-            return result;
-        }
-
-        internal PlayerKVStateResult PrepareImmediate(IReadOnlyDictionary<string, string> data,
-            out IReadOnlyList<PlayerKVChange> operations)
         {
             lock (gate)
             {
                 operations = null;
-                if (status != PlayerKVSyncStatus.Ready || snapshot.AuthenticationInvalid)
+                if (status != KVSyncStatus.Ready || snapshot.AuthenticationInvalid)
                 {
                     return Blocked();
                 }
                 if (data == null || data.Count == 0 || data.Count > long.MaxValue - snapshot.NextSequence ||
-                    data.Any(pair => !KVSnapshot.ValidKey(pair.Key) || pair.Value == null))
+                    data.Any(pair => !KvSnapshot.ValidKey(pair.Key) || pair.Value == null))
                 {
                     return Invalid();
                 }
                 var copy = snapshot.Clone();
-                var prepared = new List<PlayerKVChange>();
+                var prepared = new List<KvChange>();
                 foreach (var pair in data)
                 {
                     copy.ImmediatePreservedKeys.Add(pair.Key);
-                    var operation = new PlayerKVChange(pair.Key, copy.NextSequence++,
+                    var operation = new KvChange(pair.Key, copy.NextSequence++,
-                        PlayerKVValue.At(copy.Baseline, pair.Key), PlayerKVValue.Present(pair.Value));
+                        KvValue.At(copy.Baseline, pair.Key), KvValue.Present(pair.Value));
                     copy.RemoteOnlyWrites.Add(operation.Sequence, operation);
                     RemoveSources(copy, pair.Key);
                     prepared.Add(operation);
                 }
-                var result = Commit(copy, PlayerKVSyncStatus.Ready, prepared[0].Sequence);
+                var result = Commit(copy, KVSyncStatus.Ready, prepared[0].Sequence);
                 if (result.Success)
                 {
                     operations = prepared.AsReadOnly();
@@ -725,16 +640,11 @@ namespace game.PlayerDataStorage
             }
         }
 
-        internal PlayerKVStateResult CompleteImmediate(PlayerKVChange operation)
+        internal KvStateResult CompleteImmediate(IReadOnlyList<KvChange> operations)
-        {
-            return CompleteImmediate(new[] { operation });
-        }
-
-        internal PlayerKVStateResult CompleteImmediate(IReadOnlyList<PlayerKVChange> operations)
         {
             lock (gate)
             {
-                if (status != PlayerKVSyncStatus.Ready || snapshot.AuthenticationInvalid || snapshot.Active != null ||
+                if (status != KVSyncStatus.Ready || snapshot.AuthenticationInvalid || snapshot.Active != null ||
                     snapshot.Unknown != null || operations.Any(operation => !snapshot.RemoteOnlyWrites.ContainsKey(operation.Sequence)))
                 {
                     return Blocked();
@@ -747,16 +657,11 @@ namespace game.PlayerDataStorage
                     copy.RemoteOnlyWrites.Remove(operation.Sequence);
                     copy.ImmediatePreservedKeys.Add(operation.Key);
                 }
-                return Commit(copy, PlayerKVSyncStatus.Ready);
+                return Commit(copy, KVSyncStatus.Ready);
             }
         }
 
-        internal void CancelUndispatchedImmediate(PlayerKVChange operation)
+        internal void CancelUndispatchedImmediate(IReadOnlyList<KvChange> operations)
-        {
-            CancelUndispatchedImmediate(new[] { operation });
-        }
-
-        internal void CancelUndispatchedImmediate(IReadOnlyList<PlayerKVChange> operations)
         {
             lock (gate)
             {
@@ -780,36 +685,52 @@ namespace game.PlayerDataStorage
             }
         }
 
-        private static Dictionary<string, string> LocalView(KVSnapshot source)
+        private static Dictionary<string, string> LocalView(KvSnapshot source)
         {
             return new Dictionary<string, string>(source.LocalData, StringComparer.Ordinal);
         }
 
-        bool Terminal => status == PlayerKVSyncStatus.Closed || status == PlayerKVSyncStatus.StorageError;
+        private bool Terminal => status == KVSyncStatus.Closed || status == KVSyncStatus.StorageError;
-        PlayerKVStateResult Commit(KVSnapshot copy, PlayerKVSyncStatus nextStatus, long sequence = 0)
+        private KvStateResult Commit(KvSnapshot copy, KVSyncStatus nextStatus, long sequence = 0)
         {
             if (snapshot.Revision == long.MaxValue)
-            { status = PlayerKVSyncStatus.StorageError; return new PlayerKVStateResult(PlayerKVChangeError.StorageError, sequence, snapshot.Revision); }
+            {
+                status = KVSyncStatus.StorageError;
+                return new KvStateResult(KVChangeError.StorageError, sequence);
+            }
             copy.Revision = snapshot.Revision + 1;
             if (!store.Save(copy, out var uncertain))
             {
-                status = PlayerKVSyncStatus.StorageError;
+                status = KVSyncStatus.StorageError;
-                return new PlayerKVStateResult(PlayerKVChangeError.StorageError, sequence, copy.Revision, uncertain);
+                return new KvStateResult(KVChangeError.StorageError, sequence, uncertain);
             }
-            snapshot = copy; status = nextStatus;
+            snapshot = copy;
-            return new PlayerKVStateResult(PlayerKVChangeError.None, sequence, copy.Revision);
+            status = nextStatus;
+            return new KvStateResult(KVChangeError.None, sequence);
         }
-        static void Apply(Dictionary<string, string> data, string key, PlayerKVValue value)
+        private static void Apply(Dictionary<string, string> data, string key, KvValue value)
-        { if (value.Exists) data[key] = value.Value; else data.Remove(key); }
+        {
-        PlayerKVStateResult Blocked() => new PlayerKVStateResult(PlayerKVChangeError.Blocked, revision: snapshot.Revision);
+            if (value.Exists)
-        PlayerKVStateResult Invalid() => new PlayerKVStateResult(PlayerKVChangeError.Validation, revision: snapshot.Revision);
+            {
+                data[key] = value.Value;
+            }
+            else
+            {
+                data.Remove(key);
+            }
+        }
+        private KvStateResult Blocked() => new KvStateResult(KVChangeError.Blocked);
+        private KvStateResult Invalid() => new KvStateResult(KVChangeError.Validation);
 
         public void Dispose()
         {
             lock (gate)
             {
-                if (status == PlayerKVSyncStatus.Closed) return;
+                if (status == KVSyncStatus.Closed)
-                status = PlayerKVSyncStatus.Closed;
+                {
+                    return;
+                }
+                status = KVSyncStatus.Closed;
                 ClearComparison();
                 store.Dispose();
             }

Client/Assets/Scripts/Core/KVMgr.cs

@@ -1,231 +0,0 @@
-using System;
-using UnityEngine;
-using System.Collections.Generic;
-using System.Threading;
-using System.Threading.Tasks;
-using game.PlayerDataStorage;
-
-internal class KVMgr : MonoBehaviour
-{
-    private static KVMgr instance;
-    private KVPlayerSaveStore store;
-    private CancellationTokenSource tokenSource;
-
-    private void Awake()
-    {
-        instance = this;
-        tokenSource = new CancellationTokenSource();
-        UpdateUserDataValue(tokenSource.Token);
-    }
-
-    internal static void Bind(KVPlayerSaveStore original)
-    {
-        if (instance != null)
-        {
-            instance.store = original;
-        }
-    }
-
-    internal static void Unbind(KVPlayerSaveStore original)
-    {
-        if (instance != null && ReferenceEquals(instance.store, original))
-        {
-            instance.store = null;
-        }
-    }
-
-    internal static void Stop(KVPlayerSaveStore original)
-    {
-        if (instance != null && ReferenceEquals(instance.store, original))
-        {
-            instance.Stop();
-        }
-    }
-
-    private void Stop()
-    {
-        tokenSource?.Cancel();
-        tokenSource?.Dispose();
-        tokenSource = null;
-    }
-
-    private async void UpdateUserDataValue(CancellationToken token)
-    {
-        try
-        {
-            while (!token.IsCancellationRequested)
-            {
-                SyncData();
-                await Task.Delay(40000);
-            }
-        }
-        catch (Exception ex)
-        {
-            Debug.LogError("KV save schedule failed: " + ex.GetType().Name);
-        }
-    }
-
-    private void SyncData()
-    {
-        var original = store;
-        if (original != null && original.IsCurrent)
-        {
-            ObserveSync(original.SyncDataAsync());
-        }
-    }
-
-    private static async void ObserveSync(Task<PlayerKVFlushResult> task)
-    {
-        try
-        {
-            var result = await task;
-            if (result.TransportError != PlayerKVError.None || result.Blocked != 0 || result.Unknown != 0)
-            {
-                Debug.LogError("KV ordinary save failed: " + result.TransportError);
-            }
-        }
-        catch (Exception ex)
-        {
-            Debug.LogError("KV ordinary save failed: " + ex.GetType().Name);
-        }
-    }
-
-    private void OnApplicationPause(bool paused)
-    {
-        if (paused)
-        {
-            Stop();
-            SyncData();
-        }
-        else
-        {
-            tokenSource = new CancellationTokenSource();
-            UpdateUserDataValue(tokenSource.Token);
-        }
-    }
-
-    private void OnApplicationQuit()
-    {
-        Stop();
-    }
-
-    private void OnDestroy()
-    {
-        Stop();
-        SyncData();
-        store = null;
-        if (ReferenceEquals(instance, this))
-        {
-            instance = null;
-        }
-    }
-
-    internal static Task<PlayerKVFlushResult> SyncKVAsync(PlayerKVGameSessionHandle handle,
-        CancellationToken waitToken = default)
-    {
-        if (PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Sync))
-        {
-            return Task.FromResult(new PlayerKVFlushResult(0, 0, 1, 0, PlayerKVError.Cancelled,
-                handle == null ? PlayerKVSyncStatus.NotLoaded : handle.Status));
-        }
-        if (handle == null)
-        {
-            return Task.FromResult(new PlayerKVFlushResult(0, 0, 1, 0, PlayerKVError.Validation, PlayerKVSyncStatus.NotLoaded));
-        }
-        return handle.SyncDataAsync(waitToken);
-    }
-
-    internal static PlayerKVKeyReadResult ReadKV(PlayerKVGameSessionHandle handle, string key)
-    {
-        if (PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.ReadLocal))
-        {
-                return new PlayerKVKeyReadResult(PlayerKVKeyReadError.LoadGuardActive, handle);
-        }
-        if (handle == null || !KVSnapshot.ValidKey(key))
-        {
-                return new PlayerKVKeyReadResult(PlayerKVKeyReadError.InvalidInput, handle);
-        }
-        var read = handle.ReadLocalSnapshot();
-        if (!read.Success)
-        {
-                return new PlayerKVKeyReadResult(read.Error == PlayerKVLocalReadError.StaleOrClosing
-                    ? PlayerKVKeyReadError.StaleOrClosing : PlayerKVKeyReadError.NotReady, handle);
-        }
-        var found = read.Data.TryGetValue(key, out var value);
-        return new PlayerKVKeyReadResult(PlayerKVKeyReadError.None, handle, found, value);
-    }
-
-    internal static PlayerKVEditResult WriteKV(PlayerKVGameSessionHandle handle,
-        string key, string value, bool remoteStore = true)
-    {
-        if (PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Update))
-        {
-                return new PlayerKVEditResult(new PlayerKVStateResult(PlayerKVChangeError.Blocked));
-        }
-        if (handle == null)
-        {
-                return new PlayerKVEditResult(new PlayerKVStateResult(PlayerKVChangeError.Validation));
-        }
-        return handle.Update(key, value, remoteStore, ZZTimeHelper.UtcNow().Ticks);
-    }
-
-    internal static async Task<bool> SyncDataImmidiate(PlayerKVGameSessionHandle handle, string key, string value)
-    {
-        var success = false;
-        if (!PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Immediate) && handle != null &&
-            KVSnapshot.ValidKey(key) && value != null)
-        {
-            success = await handle.SyncDataImmidiate(key, value);
-        }
-        if (!success)
-        {
-            UnityEngine.Debug.LogError("[KVMgr::SyncDataImmidiate] Save failed.");
-        }
-        return success;
-    }
-
-    internal static async Task<bool> SyncDataImmidiate(PlayerKVGameSessionHandle handle,
-        IReadOnlyDictionary<string, string> values)
-    {
-        var success = false;
-        if (!PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Immediate) && handle != null && values != null && values.Count > 0)
-        {
-            success = await handle.SyncDataImmidiate(values);
-        }
-        if (!success)
-        {
-            UnityEngine.Debug.LogError("[KVMgr::SyncDataImmidiate] Save failed.");
-        }
-        return success;
-    }
-
-    internal static Task<PlayerKVFlushResult> FlushKVAsync(PlayerKVGameSessionHandle handle,
-        CancellationToken waitToken = default)
-    {
-        if (PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Sync))
-        {
-                return Task.FromResult(new PlayerKVFlushResult(0, 0, 1, 0, PlayerKVError.Cancelled,
-                    handle == null ? PlayerKVSyncStatus.NotLoaded : handle.Status));
-        }
-        if (handle == null)
-        {
-                return Task.FromResult(new PlayerKVFlushResult(0, 0, 1, 0, PlayerKVError.Validation, PlayerKVSyncStatus.NotLoaded));
-        }
-        return handle.FlushAsync(waitToken);
-    }
-
-    internal static Task<PlayerKVTicketResult> WaitForKVTicketAsync(PlayerKVGameSessionHandle handle,
-        PlayerKVSyncTicket ticket, CancellationToken waitToken = default)
-    {
-        if (PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Sync))
-        {
-                return Task.FromResult(new PlayerKVTicketResult(PlayerKVTicketStatus.Blocked, PlayerKVError.Cancelled,
-                    handle == null ? PlayerKVSyncStatus.NotLoaded : handle.Status));
-        }
-        if (handle == null)
-        {
-                return Task.FromResult(new PlayerKVTicketResult(PlayerKVTicketStatus.Blocked, PlayerKVError.Validation, PlayerKVSyncStatus.NotLoaded));
-        }
-        return handle.WaitForTicketAsync(ticket, waitToken);
-    }
-}

Client/Assets/Scripts/Core/KvMgr.cs

@@ -0,0 +1,329 @@
+using Core.KV;
+using game.KV;
+using System;
+using System.Linq;
+using UnityEngine;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+
+internal class KvMgr : MonoBehaviour
+{
+    private static KvMgr instance;
+    private KvSaveStore store;
+    private CancellationTokenSource tokenSource;
+
+    private void Awake()
+    {
+        instance = this;
+        tokenSource = new CancellationTokenSource();
+        UpdateUserDataValue(tokenSource.Token);
+    }
+
+    internal static void Bind(KvSaveStore original)
+    {
+        if (instance != null)
+        {
+            instance.store = original;
+        }
+    }
+
+    internal static void Unbind(KvSaveStore original)
+    {
+        if (instance != null && ReferenceEquals(instance.store, original))
+        {
+            instance.store = null;
+        }
+    }
+
+    internal static void Stop(KvSaveStore original)
+    {
+        if (instance != null && ReferenceEquals(instance.store, original))
+        {
+            instance.Stop();
+        }
+    }
+
+    private void Stop()
+    {
+        tokenSource?.Cancel();
+        tokenSource?.Dispose();
+        tokenSource = null;
+    }
+
+    private async void UpdateUserDataValue(CancellationToken token)
+    {
+        try
+        {
+            while (!token.IsCancellationRequested)
+            {
+                SyncData();
+                await Task.Delay(40000);
+            }
+        }
+        catch (Exception ex)
+        {
+            Debug.LogError("KV save schedule failed: " + ex.GetType().Name);
+        }
+    }
+
+    private void SyncData()
+    {
+        var original = store;
+        if (original != null && original.IsCurrent)
+        {
+            ObserveSync(original.SyncDataAsync());
+        }
+    }
+
+    private static async void ObserveSync(Task<KvFlushResult> task)
+    {
+        try
+        {
+            var result = await task;
+            if (result.TransportError != KVError.None || result.Blocked != 0 || result.Unknown != 0)
+            {
+                Debug.LogError("KV ordinary save failed: " + result.TransportError);
+            }
+        }
+        catch (Exception ex)
+        {
+            Debug.LogError("KV ordinary save failed: " + ex.GetType().Name);
+        }
+    }
+
+    private void OnApplicationPause(bool paused)
+    {
+        if (paused)
+        {
+            Stop();
+            SyncData();
+        }
+        else
+        {
+            tokenSource = new CancellationTokenSource();
+            UpdateUserDataValue(tokenSource.Token);
+        }
+    }
+
+    private void OnApplicationQuit()
+    {
+        Stop();
+    }
+
+    private void OnDestroy()
+    {
+        Stop();
+        SyncData();
+        store = null;
+        if (ReferenceEquals(instance, this))
+        {
+            instance = null;
+        }
+    }
+
+}
+
+namespace game.KV
+{
+    public sealed class KvSaveStore : IPlayerSaveStore, IDisposable
+    {
+        private KvSessionOwner handle;
+        private CancellationToken lifetime;
+        private bool bound, disposed;
+        private readonly object receiptsGate = new object();
+        public bool IsCurrent => bound && !disposed && !lifetime.IsCancellationRequested && handle.Status != KVSyncStatus.Closed;
+
+        internal void Bind(KvSessionOwner original, CancellationToken loginLifetime)
+        {
+            if (bound || disposed || original == null || loginLifetime.IsCancellationRequested)
+            {
+                throw new InvalidOperationException("Player save store cannot be rebound.");
+            }
+            if (!ReadKV(original, "LastLoginTimeUtc").Success)
+            {
+                throw new InvalidOperationException("Player save handle is not ready.");
+            }
+            handle = original;
+            lifetime = loginLifetime;
+            bound = true;
+        }
+
+        internal void ReleaseFailedBinding(KvSessionOwner original)
+        {
+            lock (receiptsGate)
+            {
+                if (!bound)
+                {
+                    return;
+                }
+                if (disposed || !ReferenceEquals(handle, original) || original.Status != KVSyncStatus.Closed)
+                {
+                    throw new InvalidOperationException("Failed save binding has not closed.");
+                }
+                handle = null;
+                bound = false;
+            }
+        }
+
+        public PlayerSaveReadResult Read(string key)
+        {
+            if (!IsCurrent)
+            {
+                return new PlayerSaveReadResult("StaleOrNotReady");
+            }
+            return ReadKV(handle, key);
+        }
+
+        public PlayerSaveWriteResult Write(string key, string value, bool remoteStore = true)
+        {
+            lock (receiptsGate)
+            {
+                if (!IsCurrent)
+                {
+                    var rejected = new PlayerSaveWriteResult("StaleOrNotReady");
+                    return rejected;
+                }
+                var result = WriteKV(handle, key, value, remoteStore);
+                var write = result.Success ? new PlayerSaveWriteResult() :
+                    new PlayerSaveWriteResult(result.Error.ToString());
+                return write;
+            }
+        }
+
+        public async Task<bool> SyncDataImmidiate(string key, string value)
+        {
+            KvSessionOwner original;
+            CancellationToken originalLifetime;
+            Task<bool> save;
+            lock (receiptsGate)
+            {
+                if (!IsCurrent)
+                {
+                    return false;
+                }
+                // Preserve the former current-store dictionary lookup's null-key behavior.
+                if (key == null)
+                {
+                    throw new ArgumentNullException(nameof(key));
+                }
+                original = handle;
+                originalLifetime = lifetime;
+                save = SyncDataImmidiate(original, key, value);
+            }
+            var success = await save;
+            lock (receiptsGate)
+            {
+                return success && IsCurrent && !originalLifetime.IsCancellationRequested && ReferenceEquals(handle, original);
+            }
+        }
+
+        internal async Task<bool> SyncDataImmidiate(IReadOnlyDictionary<string, string> values)
+        {
+            KvSessionOwner original;
+            CancellationToken originalLifetime;
+            Task<bool> save;
+            lock (receiptsGate)
+            {
+                if (!IsCurrent || values == null || values.Count == 0)
+                {
+                    return false;
+                }
+                var data = values.ToDictionary(pair => pair.Key, pair => pair.Value, StringComparer.Ordinal);
+                original = handle;
+                originalLifetime = lifetime;
+                save = SyncDataImmidiate(original, data);
+            }
+            var success = await save;
+            lock (receiptsGate)
+            {
+                return success && IsCurrent && !originalLifetime.IsCancellationRequested && ReferenceEquals(handle, original);
+            }
+        }
+
+        internal Task<KvFlushResult> SyncDataAsync()
+        {
+            lock (receiptsGate)
+            {
+                var original = handle;
+                if (!IsCurrent)
+                {
+                    return Task.FromResult(new KvFlushResult(1, 0, KVError.Cancelled));
+                }
+                if (original == null)
+                {
+                    return Task.FromResult(new KvFlushResult(1, 0, KVError.Validation));
+                }
+                return original.SyncDataAsync();
+            }
+        }
+
+        public void Dispose()
+        {
+            lock (receiptsGate)
+            {
+                disposed = true;
+            }
+        }
+
+        internal static PlayerSaveReadResult ReadKV(KvSessionOwner handle, string key)
+        {
+            if (handle == null || !KvSnapshot.ValidKey(key))
+            {
+                return new PlayerSaveReadResult("InvalidInput");
+            }
+            var read = handle.ReadLocalSnapshot();
+            if (!read.Success)
+            {
+                return new PlayerSaveReadResult(read.Error == KVLocalReadError.StaleOrClosing
+                    ? "StaleOrClosing" : "NotReady");
+            }
+            var found = read.Data.TryGetValue(key, out var value);
+            if (found && value == null)
+            {
+                throw new ArgumentException("A successful key observation requires an existence verdict.");
+            }
+            return new PlayerSaveReadResult(found, found ? value : null);
+        }
+
+        internal static KvStateResult WriteKV(KvSessionOwner handle,
+            string key, string value, bool remoteStore = true)
+        {
+            if (handle == null)
+            {
+                return new KvStateResult(KVChangeError.Validation);
+            }
+            return handle.Update(key, value, remoteStore, ZZTimeHelper.UtcNow().Ticks);
+        }
+
+        internal static async Task<bool> SyncDataImmidiate(KvSessionOwner handle, string key, string value)
+        {
+            var success = false;
+            if (handle != null &&
+                KvSnapshot.ValidKey(key) && value != null)
+            {
+                success = await handle.SyncDataImmidiate(key, value);
+            }
+            if (!success)
+            {
+                UnityEngine.Debug.LogError("[KVMgr::SyncDataImmidiate] Save failed.");
+            }
+            return success;
+        }
+
+        internal static async Task<bool> SyncDataImmidiate(KvSessionOwner handle,
+            IReadOnlyDictionary<string, string> values)
+        {
+            var success = false;
+            if (handle != null && values != null && values.Count > 0)
+            {
+                success = await handle.SyncDataImmidiate(values);
+            }
+            if (!success)
+            {
+                UnityEngine.Debug.LogError("[KVMgr::SyncDataImmidiate] Save failed.");
+            }
+            return success;
+        }
+    }
+}

Client/Assets/Scripts/Core/PlayFabMgr.cs

@@ -7,7 +7,6 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using UnityEngine;
-using game.PlayerDataStorage;
 
 public class PlayFabMgr : MonoBehaviour
 {
@@ -43,7 +42,6 @@ public class PlayFabMgr : MonoBehaviour
 
     public Dictionary<string, string> CompareDatas(Dictionary<string, UserDataRecord> remoteDatas, string userId)
     {
-        PlayerKVGameLoadGuard.RequireLegacyAllowed(PlayerKVGuardPoint.Compare);
         Last_Update_Time_Key = $"{Last_Update_Time_Key_Prefix}_{userId}";
         Local_Data_Key = $"{Local_Data_Key_prefix}_{userId}";
         var lastUpdateTimeStr = PlayerPrefs.GetString(Last_Update_Time_Key, string.Empty);
@@ -117,7 +115,6 @@ public class PlayFabMgr : MonoBehaviour
 
     void Awake()
     {
-        if(PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Lifecycle)) return;
         _instance = this;
         InitBuffer();
         tokenSource = new CancellationTokenSource();
@@ -136,7 +133,6 @@ public class PlayFabMgr : MonoBehaviour
 
     void OnApplicationPause(bool is_pause)
     {
-        if(PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Lifecycle)) return;
         if (is_pause)
         {
             tokenSource.Cancel();
@@ -152,7 +148,6 @@ public class PlayFabMgr : MonoBehaviour
 
     void OnApplicationQuit()
     {
-        if(PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Lifecycle)) return;
         tokenSource.Cancel();
         tokenSource = null;
         SyncData();
@@ -160,16 +155,14 @@ public class PlayFabMgr : MonoBehaviour
 
     void OnDestroy()
     {
-        if(PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Lifecycle)) return;
         tokenSource?.Cancel();
         tokenSource = null;
-        if(!PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.PrefsSave)) PlayerPrefs.Save();
+        PlayerPrefs.Save();
         SyncData();
     }
 
     private async void UpdateUserDataValue(CancellationToken token)
     {
-        if(PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Lifecycle)) return;
         try
         {
             while (!token.IsCancellationRequested)
@@ -183,7 +176,6 @@ public class PlayFabMgr : MonoBehaviour
 
     public void UpdateUserDataValue(string key, string data, bool remoteStore = true)
     {
-        PlayerKVGameLoadGuard.RequireLegacyAllowed(PlayerKVGuardPoint.Update);
         if (remoteStore)
         {
             var cbuff = dataBuffer.First;
@@ -213,7 +205,6 @@ public class PlayFabMgr : MonoBehaviour
     /// <returns></returns>
     public string GetLocalData(string key)
     {
-        PlayerKVGameLoadGuard.RequireLegacyAllowed(PlayerKVGuardPoint.ReadLocal);
         if (localData.ContainsKey(key))
         {
             return localData[key];
@@ -226,7 +217,6 @@ public class PlayFabMgr : MonoBehaviour
 
     private void SyncData()
     {
-        if(PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Sync)) return;
         // Logout clears credentials before RootCtx is destroyed. Keep pending data local.
         if (!PlayFabClientAPI.IsClientLoggedIn()) return;
         var buf = dataBuffer.First;
@@ -282,7 +272,6 @@ public class PlayFabMgr : MonoBehaviour
 
     public async Task<bool> SyncDataImmidiate(string key, string data)
     {
-        if(PlayerKVGameLoadGuard.Reject(PlayerKVGuardPoint.Immediate)) return false;
         foreach (var buff in dataBuffer)
         {
             if (buff.ContainsKey(key))

Client/Assets/Scripts/DataCenter/BargainPackData.cs

@@ -8,7 +8,7 @@ using System.Collections.Generic;
 
 public class BargainPackData
 {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
 
     private readonly Tables _tables = GContext.container.Resolve<Tables>();
     private readonly TbEventPackManager _epm = GContext.container.Resolve<Tables>().TbEventPackManager;

Client/Assets/Scripts/DataCenter/BattlePassData.cs

@@ -33,7 +33,7 @@ public struct BpVipUnlock
 
 public class BattlePassData
 {
-    [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+    [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
     public BattlePassRecord BattlePassRecord;
     public BattleTask BattleTask;
 

Client/Assets/Scripts/DataCenter/BuffDataCenter.cs

@@ -6,7 +6,7 @@ using System.Collections.Generic;
 
 public class BuffDataCenter
 {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
 
     private cfg.Tables _tables;
     public BuffDataCenter(cfg.Tables tables)

Client/Assets/Scripts/DataCenter/DataCenter.FishingEventData.cs

@@ -56,8 +56,8 @@ namespace GameCore
 {
     public partial class FishingEventData : IDisposable
     {
-        game.PlayerDataStorage.IPlayerSaveStore boundSaveStore;
+        Core.KV.IPlayerSaveStore boundSaveStore;
-        [Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore
+        [Inject] public Core.KV.IPlayerSaveStore playerSaveStore
         {
             get => boundSaveStore;
             set

Client/Assets/Scripts/DataCenter/DataCenter.GuideData.cs

@@ -41,7 +41,7 @@ namespace GameCore
     }
     public class GuideDataCenter : IDisposable
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
         Tables _tables;
         PlayerData playerData;
         public GuideDataCenter(cfg.Tables tables, PlayerData playerData)

Client/Assets/Scripts/DataCenter/DataCenter.LeadboardData.cs

@@ -1,8 +1,9 @@
+using Core.KV;
 using asap.core;
 using asap.playfab.async;
 using cfg;
 using game;
-using game.PlayerDataStorage;
+using game.KV;
 using PlayFab.ClientModels;
 using System;
 using System.Collections.Generic;
@@ -164,9 +165,9 @@ namespace GameCore
             {
                 Statistics.Add(new StatisticUpdate() { StatisticName = names[i], Value = value[i] });
             }
-            if (userService is KVUserService kvUser)
+            if (userService is KvUserService kvUser)
             {
-                var store = kvUser.SaveStore as KVPlayerSaveStore;
+                var store = kvUser.SaveStore as KvSaveStore;
                 var writtenNames = new HashSet<string>(StringComparer.Ordinal);
                 var data = new Dictionary<string, string>(StringComparer.Ordinal);
                 foreach (var statistic in Statistics)
@@ -175,7 +176,7 @@ namespace GameCore
                     {
                         continue;
                     }
-                    if (!KVSnapshot.ValidKey(statistic.StatisticName))
+                    if (!KvSnapshot.ValidKey(statistic.StatisticName))
                     {
                         Debug.LogError("KV statistic write failed: " + statistic.StatisticName + ": Validation");
                         continue;
@@ -199,7 +200,7 @@ namespace GameCore
         }
         public async Task<GetLeaderboardResult> GetLeadboardData(string leaderboardNaem, int maxCount = 50)
         {
-            if (userService is KVUserService)
+            if (userService is KvUserService)
             {
                 var json = await customServerMgr.CustomServerPost("leaderboard/GetLeaderboard",
                     Newtonsoft.Json.JsonConvert.SerializeObject(new
@@ -214,7 +215,7 @@ namespace GameCore
                 }
                 try
                 {
-                    var response = Newtonsoft.Json.JsonConvert.DeserializeObject<KVLeaderboardResponse>(json);
+                    var response = Newtonsoft.Json.JsonConvert.DeserializeObject<KvLeaderboardResponse>(json);
                     if (response == null || response.Code != 1 || response.Leaderboard == null ||
                         response.Leaderboard.Any(entry => entry == null || entry.Profile == null))
                     {
@@ -244,7 +245,7 @@ namespace GameCore
             return await PlayFabClientAsyncAPI.GetLeaderboardAsync(reques);
         }
 
-        private sealed class KVLeaderboardResponse
+        private sealed class KvLeaderboardResponse
         {
             public int Code
             {

Client/Assets/Scripts/DataCenter/DataCenter.PlayerData.cs

@@ -17,7 +17,7 @@ namespace GameCore
 {
     public class PlayerData
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
         private cfg.Tables _tables;
         MMTService _MMService;
         public PlayerData(cfg.Tables tables, MMTService mmService)

Client/Assets/Scripts/DataCenter/DataCenter.PlayerFishData.cs

@@ -52,7 +52,7 @@ namespace GameCore
     }
     public partial class PlayerFishData
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
         private cfg.Tables _tables;
         private ICustomServerMgr customServerMgr;
         public PlayerFishData(cfg.Tables tables, ICustomServerMgr customServerMgr)

Client/Assets/Scripts/DataCenter/DataCenter.PlayerShopData.cs

@@ -73,8 +73,8 @@ namespace GameCore
     }
     public partial class PlayerShopData : IDisposable
     {
-        game.PlayerDataStorage.IPlayerSaveStore boundSaveStore;
+        Core.KV.IPlayerSaveStore boundSaveStore;
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore
         {
             get => boundSaveStore;
             set { CouponData.BindSaveStore(value); boundSaveStore = value; }

Client/Assets/Scripts/DataCenter/DataCenter.SignupData.cs

@@ -29,7 +29,7 @@ namespace GameCore
     }
     public class SigninData
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
 
         private cfg.Tables _tables;
         public SigninData(cfg.Tables tables)

Client/Assets/Scripts/DataCenter/DataCenter.SmallGame.cs

@@ -20,7 +20,7 @@ namespace GameCore
     }
     public class SmallGameData
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
         private cfg.Tables _tables;
         IUserService userService;
         ICustomServerMgr customServerMgr;

Client/Assets/Scripts/DataCenter/DataCenter.TriggerPackData.cs

@@ -38,7 +38,7 @@ namespace GameCore
     }
     public class TriggerPackData
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
 
         Tables _tables;
         PlayerShopData playerShopData;

Client/Assets/Scripts/DataCenter/EventPackData.cs

@@ -3,7 +3,7 @@ using GameCore;
 using cfg;
 public class EventPackData
 {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
     private Tables _tables = GContext.container.Resolve<Tables>();
     private struct Data
     {

Client/Assets/Scripts/DataCenter/EventPartnerGatherManager.cs

@@ -100,7 +100,7 @@ namespace DataCenter
     // EventPartnerGather 管理器
     public class EventPartnerGatherManager : IAutoMatchManagerContext
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
 
         private const bool EnableTraceLogs = false;
         public const string SaveKey = "EventPartnerGatherData";

Client/Assets/Scripts/DataCenter/EventPinballDataManager.cs

@@ -11,7 +11,7 @@ namespace game
 {
     public class EventPinballDataManager
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
 
 #if UNITY_EDITOR
         private bool m_IsCheckCondition = true;

Client/Assets/Scripts/DataCenter/EventPotionDataManager.cs

@@ -13,7 +13,7 @@ namespace game
 {
     public class EventPotionDataManager
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
 #if UNITY_EDITOR
         private bool m_IsCheckCondition = true;
         private bool m_IsSyncData = true;

Client/Assets/Scripts/DataCenter/EventScratchTicketDataManager.cs

@@ -14,7 +14,7 @@ namespace game
 {
     public class EventScratchTicketDataManager
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
 #if UNITY_EDITOR
         private bool m_IsCheckCondition = true;
         private bool m_IsSyncData = true;

Client/Assets/Scripts/DataCenter/FishingChallengeManager.cs

@@ -40,7 +40,7 @@ public class FishingChallengeData
 
 public class FishingChallengeManager
 {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
 
     //
     private const string SaveKey = "FishingChallengeData";

Client/Assets/Scripts/DataCenter/OfferChainsChestManager.cs

@@ -41,7 +41,7 @@ namespace DataCenter
 
     public class OfferChainsChestManager
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
 
         public const string SaveKey = "OfferChainsChestData";
         [Inject] public Tables _tables { get; set; }

Client/Assets/Scripts/DataCenter/OfferDiscoPartyManager.cs

@@ -44,7 +44,7 @@ namespace DataCenter
     // Disco Manager
     public class OfferDiscoPartyManager
     {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
         public const string SaveKey = "OfferDiscoPartyManager";
 
         // 免费抽奖次数

Client/Assets/Scripts/DataCenter/PiggyBankPackData.cs

@@ -8,7 +8,7 @@ using game;
 using System.Linq;
 public class PiggyBankPackData
 {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore playerSaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore playerSaveStore { get; set; }
     private readonly Tables _tables = GContext.container.Resolve<Tables>();
     private readonly TbEventPackManager _epm
         = GContext.container.Resolve<Tables>().TbEventPackManager;

Client/Assets/Scripts/DataCenter/TotalRechargeManager.cs

@@ -17,7 +17,7 @@ namespace GameCore
     }
     public class TotalRechargeManager
     {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
         public const string TotalRechargeDataKey = "EventTotalRecharge";
         public TotalRechargeData GetEventData()

Client/Assets/Scripts/DebugFunc.cs

@@ -474,15 +474,15 @@ public class DebugFunc
     private static void LoginTime(int hours)
     {
         var userService = GContext.container.Resolve<game.IUserService>();
-        if (userService is not game.PlayFabUserService && userService is not game.KVUserService)
+        if (userService is not game.PlayFabUserService && userService is not game.KvUserService)
         {
             return;
         }
 
         var loginTime = userService.LoginTime;
         var newLoginTime = loginTime.AddHours(hours);
-        var prop = userService is game.KVUserService
+        var prop = userService is game.KvUserService
-            ? typeof(game.KVUserService).GetProperty("LoginTime")
+            ? typeof(game.KvUserService).GetProperty("LoginTime")
             : userService.GetType().GetProperty("LoginTime");
         prop.SetValue(userService, newLoginTime);
         Debug.Log($"loginTime: {loginTime} newLoginTime: {newLoginTime}  prop: {userService.LoginTime}");
@@ -491,7 +491,7 @@ public class DebugFunc
     private static void AccoutInfo()
     {
         var userService = GContext.container.Resolve<game.IUserService>();
-        if (userService is not game.PlayFabUserService && userService is not game.KVUserService)
+        if (userService is not game.PlayFabUserService && userService is not game.KvUserService)
         {
             return;
         }
@@ -728,7 +728,7 @@ public class DebugFunc
     }
     static void ClearLastPaymentTime()
     {
-        GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>().Write("LastPaymentTime", "").RequireAccepted();
+        GContext.container.Resolve<Core.KV.IPlayerSaveStore>().Write("LastPaymentTime", "").RequireAccepted();
     }
     static void HookWheelForecActive()
     {

Client/Assets/Scripts/Duel/UI/EventFishingDuelPanel.cs

@@ -608,7 +608,7 @@ public class EventFishingDuelPanel : BasePanel
     void CreateMatchmakingTicket()
     {
         if (GContext.container.Resolve<IUserService>() is not PlayFabUserService &&
-            GContext.container.Resolve<IUserService>() is not KVUserService)
+            GContext.container.Resolve<IUserService>() is not KvUserService)
         {
             Debug.LogWarning("KV matchmaking service is not connected.");
             FDM.MachingEnd(null);
@@ -654,7 +654,7 @@ public class EventFishingDuelPanel : BasePanel
             Debug.LogError("创建匹配请求失败: " + error);
             FDM.MachingEnd(null);
         };
-        if (userService is KVUserService)
+        if (userService is KvUserService)
         {
             RequestKVMatch("CreateMatchmakingTicket", new
             {
@@ -733,7 +733,7 @@ public class EventFishingDuelPanel : BasePanel
                 Debug.LogError("检查匹配状态失败: " + error);
                 MachingEnd();
             };
-            if (GContext.container.Resolve<IUserService>() is KVUserService)
+            if (GContext.container.Resolve<IUserService>() is KvUserService)
             {
                 RequestKVMatch("GetMatchmakingTicket", new
                 {
@@ -750,7 +750,7 @@ public class EventFishingDuelPanel : BasePanel
     void GetMatchDetails(string matchId)
     {
         if (GContext.container.Resolve<IUserService>() is not PlayFabUserService &&
-            GContext.container.Resolve<IUserService>() is not KVUserService)
+            GContext.container.Resolve<IUserService>() is not KvUserService)
         {
             Debug.LogWarning("KV matchmaking service is not connected.");
             FDM.MachingEnd(null);
@@ -783,7 +783,7 @@ public class EventFishingDuelPanel : BasePanel
                     for (int i = 0; i < result.Members.Count; i++)
                     {
                         MatchmakingPlayerWithTeamAssignment member = result.Members[i];
-                        if (member.Entity.Id != (userService is KVUserService ? userService.UserId : ((PlayFabUserService)userService).entityKey.Id))
+                        if (member.Entity.Id != (userService is KvUserService ? userService.UserId : ((PlayFabUserService)userService).entityKey.Id))
                         {
                             JObject dataObject = JObject.FromObject(result.Members[i].Attributes.DataObject);
                             string[] tierArray = dataObject["Tier"].ToObject<string[]>();
@@ -809,7 +809,7 @@ public class EventFishingDuelPanel : BasePanel
             Debug.LogError("获取匹配详情失败: " + error);
             MachingEnd();
         };
-        if (GContext.container.Resolve<IUserService>() is KVUserService)
+        if (GContext.container.Resolve<IUserService>() is KvUserService)
         {
             RequestKVMatch("GetMatch", new
             {
@@ -862,7 +862,7 @@ public class EventFishingDuelPanel : BasePanel
         {
             Debug.LogError("取消匹配失败: " + error);
         };
-        if (GContext.container.Resolve<IUserService>() is KVUserService)
+        if (GContext.container.Resolve<IUserService>() is KvUserService)
         {
             RequestKVMatch("CancelMatchmakingTicket", new
             {

Client/Assets/Scripts/Event/AEventDataManager.cs

@@ -16,7 +16,7 @@ namespace game
             GContext.OnEvent<TargetEvent>().Subscribe(OnEvent_TargetEvent).AddTo(Disposables);
         }
         private Tables _tables;
-        [Inject] public PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
         bool disposed;
 
         [Inject]

Client/Assets/Scripts/EventBingo/EventBingoData.cs

@@ -410,7 +410,7 @@ public class EventBingoStepState
 
 public class EventBingoPlayfabData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public int EventId, TicketCount, RoundCount, StepInRound, Seed, ChainProgress, ChainTaskTokenProgress;
     public float InflationRate;
@@ -480,7 +480,7 @@ public class EventBingoPlayfabData
 
     public static EventBingoPlayfabData Load()
     {
-        var s = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>().Read(Key).ValueOrThrow();
+        var s = GContext.container.Resolve<Core.KV.IPlayerSaveStore>().Read(Key).ValueOrThrow();
         return Deserialize(s);
     }
 }

Client/Assets/Scripts/EventBreak/EventBreakData.cs

@@ -152,7 +152,7 @@ public class DrillModel : IHasChainPack
 
 public class EventBreakPfData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public int EventId { get; set; }
     public int TicketCount { get; set; }

Client/Assets/Scripts/EventCan/EventCanData.cs

@@ -350,7 +350,7 @@ public class EventCanProgressTaskInfo
 
 public class EventCanPlayfabData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public const string PlayFabKey = "EventCan";
     private const char Splitter = '|', Comma = ',';

Client/Assets/Scripts/EventCubeMelt/Data/EventCubeMeltManager.cs

@@ -22,7 +22,7 @@ using Random = UnityEngine.Random;
 
 public class EventCubeMeltManager
 {
-        [asap.core.Inject] public game.PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [asap.core.Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
 
     //
     public const string SaveKey = "EventCubeMeltData";

Client/Assets/Scripts/EventGatherCore/EventGatherCoreData.cs

@@ -265,7 +265,7 @@ public class EventGatherCoreRewardInfo
 
 public class EventGatherCorePlayfabData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public int EventId { get; set; }
     public int TicketCount { get; set; }
@@ -319,7 +319,7 @@ public class EventGatherCorePlayfabData
 
     public static EventGatherCorePlayfabData Load()
     {
-        var s = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>().Read(Key).ValueOrThrow();
+        var s = GContext.container.Resolve<Core.KV.IPlayerSaveStore>().Read(Key).ValueOrThrow();
         var res = new EventGatherCorePlayfabData();
         try
         {

Client/Assets/Scripts/EventLuckGame/EventLuckyGameModel.cs

@@ -11,7 +11,7 @@ using UnityEngine;
 /// </summary>
 public class EventLuckyGameModel : ILuckyTaskGetData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public static EventLuckyGameModel Get()
     {

Client/Assets/Scripts/EventOfferJourney/EventOfferJourneyData.cs

@@ -261,7 +261,7 @@ public class EventOfferJourneyBlockData
 
 public class EventOfferJourneyPlayfabData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public int EventId, Progress, TicketCount, VipLvlOnTrigger, RoundCount;
     public float InflationRate;
@@ -321,7 +321,7 @@ public class EventOfferJourneyPlayfabData
 
     public static EventOfferJourneyPlayfabData Load()
     {
-        var s = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>().Read(Key).ValueOrThrow();
+        var s = GContext.container.Resolve<Core.KV.IPlayerSaveStore>().Read(Key).ValueOrThrow();
         return Deserialize(s);
     }
 

Client/Assets/Scripts/EventOfferJourney/EventOfferJourneyLvlTriggerData.cs

@@ -156,7 +156,7 @@ public class EventOfferJourneyLvlTriggerData : AEventOfferJourneyData
 
 public class EventOfferJourneyLvlTriggerPlayfabData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public int Progress, TicketCount, RoundCount;
     private const string Key = "EventOfferJourneyLvlTriggerData";
@@ -197,7 +197,7 @@ public class EventOfferJourneyLvlTriggerPlayfabData
 
     public static EventOfferJourneyLvlTriggerPlayfabData Load()
     {
-        var s = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>().Read(Key).ValueOrThrow();
+        var s = GContext.container.Resolve<Core.KV.IPlayerSaveStore>().Read(Key).ValueOrThrow();
         return Deserialize(s);
     }
 

Client/Assets/Scripts/EventPartnerGather/PartnerInfoManager.cs

@@ -49,7 +49,6 @@ namespace EventPartnerGather
         {
             BuildPartners = new BuildPartner[_tables.TbEventPartnerConfig.InvitationCount[1]];
         }
-        internal bool HasSubscriptionsForKVLoad => disposables != null;
         //
         public bool IsFullyMatched => BuildPartners.All(b => b != null && b.IsValid());
 

Client/Assets/Scripts/EventStrikeLucky/EventLuckMagicData.cs

@@ -564,7 +564,7 @@ public class RewardItemNewFlyToStashRequest
 
 public class EventLuckMagicPlayfabData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public int EventId;
     public int TicketCount;

Client/Assets/Scripts/EventWelcomeBack/EventWelcomeBackManager.cs

@@ -15,7 +15,7 @@ public class WelcomeBackData
 }
 public class EventWelcomeBackManager
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     string DataKey_WelcomeBack = "WelcomeBack";
     Tables tables;

Client/Assets/Scripts/GampPlay/FishingB/FishingBehaviorB.cs

@@ -1,4 +1,4 @@
-using game.PlayerDataStorage;
+using Core.KV;
 using asap.core;
 using cfg;
 using DG.Tweening;

Client/Assets/Scripts/InfiniteBuilding/InfiniteBuildingData.cs

@@ -6,7 +6,7 @@ using UnityEngine;
 
 public class InfiniteBuildingData
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public int Lvl, Step, StepLvl = 1, LastHangingBlock = -1;
     public List<BlockRecord> Record = new List<BlockRecord>();

Client/Assets/Scripts/LuckyTask/UI/LuckyADTaskPopupPanel.cs

@@ -9,7 +9,7 @@ using UnityEngine;
 
 public class LuckyADTaskPopupPanel : LuckyTaskPanelBase
 {
-    game.PlayerDataStorage.IPlayerSaveStore saveStore;
+    Core.KV.IPlayerSaveStore saveStore;
 
     List<LuckyTaskItemData> taskList;
     List<LuckyADTaskItem> taskItems = new List<LuckyADTaskItem>();
@@ -20,7 +20,7 @@ public class LuckyADTaskPopupPanel : LuckyTaskPanelBase
     System.DateTime refreshTime;
     protected override void Awake()
     {
-        saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+        saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
         base.Awake();
         luckyTaskItem = transform.Find("root/hook_missions_object").GetComponent<LuckyADTask>();
         text_time = transform.Find("root/text_time").GetComponent<TMP_Text>();

Client/Assets/Scripts/LuckyTask/UI/LuckyTaskBtn.cs

@@ -7,7 +7,7 @@ using UnityEngine.UI;
 
 public class LuckyTaskBtn : MonoBehaviour, IUIRedPoint
 {
-    game.PlayerDataStorage.IPlayerSaveStore saveStore;
+    Core.KV.IPlayerSaveStore saveStore;
 
     Button btn;
     ILuckyTaskGetData model;
@@ -18,7 +18,7 @@ public class LuckyTaskBtn : MonoBehaviour, IUIRedPoint
     public TMP_Text text_redpoint_big;
     void Awake()
     {
-        saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+        saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
         btn = GetComponent<Button>();
         btn.onClick.AddListener(OnClick);
     }

Client/Assets/Scripts/LuckyTask/UI/LuckyTaskPanel.cs

@@ -9,11 +9,11 @@ public class LuckyTaskPanel : LuckyTaskPanelBase
 {
     protected override void Awake()
     {
-        saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+        saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
         base.Awake();
     }
 
-    game.PlayerDataStorage.IPlayerSaveStore saveStore;
+    Core.KV.IPlayerSaveStore saveStore;
 
     /// <summary>
     /// luckyModel 也作为是否自动全部领奖的标志

Client/Assets/Scripts/MatchGame/MatchGameManager.cs

@@ -36,7 +36,7 @@ public enum FlipResult
 
 public class EventMatchGameManager
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     public string EventMatchGameDataKey => "EventMatchGameDataKey";
     public int ItemSubType => 3;

Client/Assets/Scripts/MiniBP/MiniBattlePassDataProvider.cs

@@ -53,7 +53,7 @@ public interface IMiniBattlePassDataProvider
 
 public class MiniBattlePassDataProvider : IMiniBattlePassDataProvider
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     private Tables _tables;
     PlayerItemData _playerItemData;

Client/Assets/Scripts/SandDig/model/DiggingGameModel.cs

@@ -15,7 +15,7 @@ using UnityEngine.ResourceManagement.AsyncOperations;
 
 public class DiggingGameModel
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     #region 协议Const区域
 

Client/Assets/Scripts/Services/Account/S101AccountSession.cs.meta

@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: 748d56d3a1b2489d85e081bfed580314
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Client/Assets/Scripts/Services/AggKvUserService.cs

@@ -8,7 +8,7 @@ using game.PlayerDataStorage;
 
 namespace game
 {
-    public class AggKVUserService : KVUserService
+    public class AggKvUserService : KvUserService
     {
         private bool channelLoginRunning;
 
@@ -262,6 +262,10 @@ namespace game
                 }
             }
 
+            if (data.TryGetValue("EAccoutUrl", out var data_value))
+            {
+                EAccoutUrl = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(data_value);
+            }
         }
     }
 }

Client/Assets/Scripts/Services/AggUserService.cs

@@ -87,7 +87,7 @@ namespace game
 
             if (!loginInfo.isSuccess) return ELoginStep.Sdk;
 
-            progress?.Invoke(1);
+            progress.Invoke(1);
 
             CustomId = loginInfo.StrUserId;
 

Client/Assets/Scripts/Services/ClubService.cs

@@ -32,54 +32,52 @@ namespace game
     }
     public class ClubService //: IClubService
     {
-        [Inject] public PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
         // BEGIN B01 fixed prompt owner
-        readonly bool requiresFormalKV;
+        private readonly bool requiresFormalKV;
-        PlayerDataStorage.PlayerKVGameSessionHandle promptOwner;
+        private Core.KV.KvSessionOwner promptOwner;
-        internal PlayerDataStorage.PlayerKVEditResult LastPromptEdit { get; private set; }
         public ClubService() : this(RequireFrozenSelection()) { }
-        static bool RequireFrozenSelection()
+        private static bool RequireFrozenSelection()
         {
-            var selection = GContext.container.Resolve<PlayerDataStorage.PlayerKVRuntimeSelection>();
+            var selection = GContext.container.Resolve<game.KV.KvRuntimeSelection>();
             if (selection == null) throw DefaultSettingService.PromptFailure("IsOpenClubRed: startup selection missing.");
             return selection.IsKV;
         }
         internal ClubService(bool formalKV) { requiresFormalKV = formalKV; }
-        internal ClubService(PlayerDataStorage.PlayerKVGameSessionHandle owner) : this(true)
-        {
-            promptOwner = owner ?? throw new ArgumentNullException(nameof(owner));
-            RequirePromptOwner();
-        }
         // The constructor captures the registered startup selection, never a later mutable config value.
-        internal void PreflightFormalPromptOwner(PlayerDataStorage.PlayerKVGameSessionHandle owner)
+        internal void PreflightFormalPromptOwner(Core.KV.KvSessionOwner owner)
         {
             if (!requiresFormalKV || owner == null || (promptOwner != null && !ReferenceEquals(promptOwner, owner)))
+            {
                 throw DefaultSettingService.PromptFailure("IsOpenClubRed: formal owner mismatch.");
-            var read = KVMgr.ReadKV(owner, "IsOpenClubRed");
+            }
+            var read = game.KV.KvSaveStore.ReadKV(owner, "IsOpenClubRed");
             if (!read.Success)
+            {
                 throw DefaultSettingService.PromptFailure($"IsOpenClubRed owner={owner.OwnerInstanceId}: {read.Error}");
+            }
         }
-        internal void BindFormalPromptOwner(PlayerDataStorage.PlayerKVGameSessionHandle owner)
+        internal void BindFormalPromptOwner(Core.KV.KvSessionOwner owner)
         {
             PreflightFormalPromptOwner(owner);
-            if (promptOwner == null) promptOwner = owner;
+            if (promptOwner == null)
+            {
+                promptOwner = owner;
+            }
             RequirePromptOwner();
         }
-        internal bool HasFormalPromptOwner(PlayerDataStorage.PlayerKVGameSessionHandle owner) =>
-            requiresFormalKV && ReferenceEquals(promptOwner, owner);
 
-        internal void ReleaseFailedPromptOwner(PlayerDataStorage.PlayerKVGameSessionHandle owner)
+        internal void ReleaseFailedPromptOwner(Core.KV.KvSessionOwner owner)
         {
             if (promptOwner == null)
             {
                 return;
             }
-            if (!ReferenceEquals(promptOwner, owner) || owner.Status != PlayerDataStorage.PlayerKVSyncStatus.Closed)
+            if (!ReferenceEquals(promptOwner, owner) || owner.Status != Core.KV.KVSyncStatus.Closed)
             {
                 throw DefaultSettingService.PromptFailure("IsOpenClubRed: failed owner has not closed.");
             }
             promptOwner = null;
-            LastPromptEdit = null;
         }
         internal void RequirePromptOwner()
         {
@@ -87,9 +85,9 @@ namespace game
             else if (requiresFormalKV)
                 throw DefaultSettingService.PromptFailure("IsOpenClubRed: formal owner not handed off.");
         }
-        private PlayerDataStorage.PlayerKVKeyReadResult ReadPrompt()
+        private Core.KV.PlayerSaveReadResult ReadPrompt()
         {
-            var read = KVMgr.ReadKV(promptOwner, "IsOpenClubRed");
+            var read = game.KV.KvSaveStore.ReadKV(promptOwner, "IsOpenClubRed");
             if (!read.Success)
             {
                 throw DefaultSettingService.PromptFailure($"IsOpenClubRed owner={promptOwner.OwnerInstanceId}: {read.Error}");
@@ -213,10 +211,10 @@ namespace game
                 {
                     IsOpenClubRed = false;
                     SetClubRed();
-                    LastPromptEdit = KVMgr.WriteKV(promptOwner, "IsOpenClubRed", "1");
+                    var promptEdit = game.KV.KvSaveStore.WriteKV(promptOwner, "IsOpenClubRed", "1");
-                    if (!LastPromptEdit.Accepted)
+                    if (!promptEdit.Success)
                     {
-                        throw DefaultSettingService.PromptFailure($"IsOpenClubRed owner={promptOwner.OwnerInstanceId}: {LastPromptEdit.StateResult.Error}; uncertain={LastPromptEdit.StateResult.LocalCommitMayHaveSucceeded}");
+                        throw DefaultSettingService.PromptFailure($"IsOpenClubRed owner={promptOwner.OwnerInstanceId}: {promptEdit.Error}; uncertain={promptEdit.LocalCommitMayHaveSucceeded}");
                     }
                 }
                 RequirePromptOwner();

Client/Assets/Scripts/Services/DeferredRewardStashService.cs

@@ -20,7 +20,7 @@ public interface IDeferredRewardStashService
 
 public class DeferredRewardStashService : IDeferredRewardStashService
 {
-    readonly game.PlayerDataStorage.IPlayerSaveStore saveStore = GContext.container.Resolve<game.PlayerDataStorage.IPlayerSaveStore>();
+    readonly Core.KV.IPlayerSaveStore saveStore = GContext.container.Resolve<Core.KV.IPlayerSaveStore>();
 
     private readonly TbItem _itemTable = GContext.container.Resolve<Tables>().TbItem;
     private readonly PlayerItemData _playerItemData = GContext.container.Resolve<PlayerItemData>();

Client/Assets/Scripts/Services/DevKVUserService.cs

@@ -1,6 +0,0 @@
-namespace game
-{
-    public sealed class DevKVUserService : KVUserService
-    {
-    }
-}

Client/Assets/Scripts/Services/DevKvUserService.cs

@@ -0,0 +1,6 @@
+namespace game
+{
+    public sealed class DevKvUserService : KvUserService
+    {
+    }
+}

Client/Assets/Scripts/Services/FootPrintService.cs

@@ -12,7 +12,7 @@ public interface IFootPrintService
 public class FootPrintService : IFootPrintService
 {
     [asap.core.Inject]
-    public game.PlayerDataStorage.IPlayerSaveStore SaveStore
+    public Core.KV.IPlayerSaveStore SaveStore
     {
         get;
         set;

Client/Assets/Scripts/Services/FriendService.cs

@@ -14,7 +14,7 @@ namespace game
 {
     public class FriendService
     {
-        [Inject] public PlayerDataStorage.IPlayerSaveStore SaveStore { get; set; }
+        [Inject] public Core.KV.IPlayerSaveStore SaveStore { get; set; }
         [Inject]
         public IUserService userService { get; set; }
 
@@ -142,7 +142,7 @@ namespace game
                 }
             };
 
-            var result = userService is KVUserService
+            var result = userService is KvUserService
                 ? await GetKVFriendsListAsync()
                 : await PlayFabClientAsyncAPI.GetFriendsListAsync(getFriendsListRequest);
             var list = result?.Friends;

Client/Assets/Scripts/Services/ILocalNotificationService.cs

@@ -37,28 +37,14 @@ public class LocalNotificationService : ILocalNotificationService
 #endif
     bool isInit = false;
     bool initing = false;
-    DefaultSettingService promptSettings;
+    private DefaultSettingService promptSettings;
-    Task initialization;
+    private Task initialization;
-    Task opening;
+    private Task opening;
     public LocalNotificationService()
     {
         _notificationList = GContext.container.Resolve<cfg.Tables>().TbNotification.DataList;
     }
 
-    internal LocalNotificationService(cfg.Tables tables)
-    {
-        _notificationList = (tables ?? throw new ArgumentNullException(nameof(tables))).TbNotification.DataList;
-    }
-
-    internal LocalNotificationService(DefaultSettingService settings, cfg.Tables tables)
-    {
-        if (settings == null || !settings.HasKVPromptOwner)
-            throw new ArgumentException("Fixed KV settings required.", nameof(settings));
-        promptSettings = settings;
-        _notificationList = (tables ?? throw new ArgumentNullException(nameof(tables))).TbNotification.DataList;
-        RequirePromptOwner();
-    }
-
     internal void RequirePromptOwner(ISettingService expected = null)
     {
         if (expected != null && (promptSettings != null || expected is DefaultSettingService setting && setting.HasKVPromptOwner)
@@ -84,8 +70,6 @@ public class LocalNotificationService : ILocalNotificationService
         if (promptSettings == null) promptSettings = settings;
         RequirePromptOwner(settings);
     }
-    internal bool HasFormalPromptSettings(DefaultSettingService settings) =>
-        ReferenceEquals(promptSettings, settings);
 
     public Task Init()
     {
@@ -95,7 +79,7 @@ public class LocalNotificationService : ILocalNotificationService
         return initialization = InitCoreAsync();
     }
 
-    async Task InitCoreAsync()
+    private async Task InitCoreAsync()
     {
         RequirePromptOwner();
 #if UNITY_EDITOR
@@ -156,7 +140,7 @@ public class LocalNotificationService : ILocalNotificationService
         return opening = OpenSettingsCoreAsync();
     }
 
-    async Task OpenSettingsCoreAsync()
+    private async Task OpenSettingsCoreAsync()
     {
         ISettingService settings = promptSettings ?? GContext.container.Resolve<ISettingService>();
         RequirePromptOwner(settings);

Client/Assets/Scripts/Services/KvUserService.cs

@@ -1,13 +1,12 @@
+using Core.KV;
+using game.KV;
 using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
-using System.Net;
-using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
 using asap.core;
-using game.PlayerDataStorage;
 using GameCore;
 using tysdk;
 using UnityEngine;
@@ -20,62 +19,101 @@ using TapjoyUnity.Internal;
 namespace game
 {
     // Failed login attempts may retry; explicit logout ends this service lifetime.
-    public class KVUserService : IUserService, IKVUserLifecycle
+    public class KvUserService : IUserService
     {
         [Inject]
-        public IConfig config { get; set; }
+        public IConfig config
+        {
+            get;
+            set;
+        }
 
-        [Inject] 
+        [Inject]
-        public ICustomServerMgr customServerMgr { get; set; }
+        public ICustomServerMgr customServerMgr
-        [Inject] 
+        {
-        public IPlayerSaveStore SaveStore { get; set; }
+            get;
+            set;
+        }
+        [Inject]
+        public IPlayerSaveStore SaveStore
+        {
+            get;
+            set;
+        }
         
         //
-        private readonly PlayerKVRuntimeSelection selection;
+        private readonly KvRuntimeSelection selection;
-        //
-        private readonly Func<CookieContainer, HttpMessageHandler> handlerFactory;
         
         private readonly CancellationTokenSource lifetime = new();
         private readonly Dictionary<string, PlayInfo> profiles = new();
         private readonly Dictionary<string, int> levels = new();
         
-        private PlayerKVGameLoadCoordinator coordinator;
+        private KvGameLoadCoordinator coordinator;
-        private PlayerKVGameSessionHandle handle;
+        private KvSessionOwner handle;
-        private bool loading, closing, published, promptsBound;
+        private bool loading, closing, published;
-        private PlayerKVGameSessionHandle failedHandle;
+        private KvSessionOwner failedHandle;
         private int mmTestValue;
         private Task closeTask;
         private long epoch;
         private string playerId;
         private uint internalId;
-        public string CustomId { get; set; }
+        public string CustomId
+        {
+            get;
+            set;
+        }
         public string UserId => KVHandoffReady ? playerId : null;
         public string ApiPlayerId => UserId;
         public uint InternalId => KVHandoffReady ? internalId : 0;
         public bool IsLogin => KVHandoffReady && playerId != null;
         public bool IsAuthorized => published && InternalId != 0 && KVHandoffReady;
         public CancellationToken LoginLifetime => lifetime.Token;
-        public DateTime LastLoginTime { get; private set; }
+        public DateTime LastLoginTime
-        public DateTime LoginTime { get; private set; }
+        {
-        public DateTime CreateTime { get; private set; }
+            get;
-        public string DisplayName { get; private set; }
+            private set;
-        public string AvatarUrl { get; private set; }
+        }
-        public string Language { get; private set; }
+        public DateTime LoginTime
-        public string ContinentCode { get; private set; }
+        {
-        public Dictionary<string, string> EAccoutUrl { get; private set; } = new Dictionary<string, string>();
+            get;
-        internal PlayerKVGameLoadError KVLastError { get; private set; }
+            private set;
+        }
+        public DateTime CreateTime
+        {
+            get;
+            private set;
+        }
+        public string DisplayName
+        {
+            get;
+            private set;
+        }
+        public string AvatarUrl
+        {
+            get;
+            private set;
+        }
+        public string Language
+        {
+            get;
+            private set;
+        }
+        public string ContinentCode
+        {
+            get;
+            private set;
+        }
+        public Dictionary<string, string> EAccoutUrl
+        {
+            get;
+            protected set;
+        } = new Dictionary<string, string>();
         internal bool KVHandoffReady => !closing && handle != null && coordinator != null &&
             coordinator.TryGetCurrentGameHandle(epoch, out var current) && ReferenceEquals(current, handle);
-        bool IKVUserLifecycle.KVHandoffReady => KVHandoffReady;
-        PlayerKVGameLoadError IKVUserLifecycle.KVLastError => KVLastError;
 
-        public KVUserService() : this(SubBoostrap.RuntimeSelection, jar => new HttpClientHandler
+        public KvUserService()
-            { CookieContainer = jar, UseCookies = true, AllowAutoRedirect = false }) { }
-
-        private KVUserService(PlayerKVRuntimeSelection selection, Func<CookieContainer, HttpMessageHandler> handlerFactory)
         {
-            this.selection = selection;
+            selection = SubBoostrap.RuntimeSelection;
-            this.handlerFactory = handlerFactory ?? throw new ArgumentNullException(nameof(handlerFactory));
             Application.quitting += OnApplicationQuitting;
         }
 
@@ -99,7 +137,6 @@ namespace game
             }
             if (selection == null || !selection.IsKV || !selection.TryAdmitPlayer(CustomId, out var canonicalId))
             {
-                KVLastError = PlayerKVGameLoadError.Input;
                 return ELoginStep.Api;
             }
 
@@ -110,9 +147,9 @@ namespace game
             try
             {
                 CustomServerMgr server;
-                KVPlayerSaveStore store;
+                KvSaveStore store;
-                PlayerKVGameLoadResult result;
+                KvGameLoadResult result;
-                PlayerKVGameSessionHandle original;
+                KvSessionOwner original;
                 try
                 {
                     if (!await ReleaseFailedLoginAsync() || closing)
@@ -120,20 +157,29 @@ namespace game
                         return ELoginStep.Api;
                     }
                     server = customServerMgr as CustomServerMgr;
-                    if (server == null || server.ApiBaseUri.AbsoluteUri != PlayerKVRuntimeSelection.FormalApiUrl)
+                    if (server == null || server.ApiBaseUri.AbsoluteUri != selection.Api.AbsoluteUri)
                     {
                         throw new InvalidOperationException("Formal KV transport required.");
                     }
-                    coordinator = new PlayerKVGameLoadCoordinator(
+                    coordinator = new KvGameLoadCoordinator(
                         () => loading && !closing && !published && handle == null,
                         server.BindKVForGame, server.ClearKVForGame);
                     server.KVUnauthorized += OnUnauthorized;
-                    var capability = PlayerKVGameLoadCapability.CreateForGame(selection.Api,
+                    var api = selection.Api;
-                        Application.persistentDataPath, handlerFactory, handlerFactory, handlerFactory, prepareOriginalComparison: true);
+                    var cacheRoot = Application.persistentDataPath;
-                    result = await coordinator.LoadForGameAsync(canonicalId, capability, LoginLifetime,
+                    if (api == null || !api.IsAbsoluteUri || (api.Scheme != "http" && api.Scheme != "https") ||
+                        !string.IsNullOrEmpty(api.UserInfo) || !string.IsNullOrEmpty(api.Query) || !string.IsNullOrEmpty(api.Fragment))
+                    {
+                        throw new ArgumentException("Formal KV endpoint mismatch.", nameof(api));
+                    }
+                    if (string.IsNullOrEmpty(cacheRoot))
+                    {
+                        throw new ArgumentException("Controlled load configuration invalid.");
+                    }
+                    api = new Uri(api.AbsoluteUri.TrimEnd('/') + "/");
+                    result = await coordinator.LoadForGameAsync(canonicalId, api, cacheRoot, LoginLifetime,
                         () => !closing && CustomId == requestedId);
-                    KVLastError = result.Error;
+                    if (result.Error != KVGameLoadError.None ||
-                    if (result.State != PlayerKVGameLoadState.PreparedForGame || result.Data == null ||
                         closing || CustomId != requestedId || result.Account == null ||
                         result.Account.PlayerId != canonicalId || result.Account.Epoch != result.Epoch ||
                         !coordinator.TryGetCurrentGameHandle(result.Epoch, out original))
@@ -143,7 +189,7 @@ namespace game
                     }
                     epoch = result.Epoch;
                     handle = original;
-                    store = SaveStore as KVPlayerSaveStore;
+                    store = SaveStore as KvSaveStore;
                     if (store == null)
                     {
                         throw new InvalidOperationException("KV save store required.");
@@ -152,7 +198,6 @@ namespace game
                 }
                 catch (Exception ex)
                 {
-                    KVLastError = PlayerKVGameLoadError.Apply;
                     Debug.LogError("KV preparation failed: " + ex.GetType().Name);
                     await FailLoginAsync();
                     return ELoginStep.Api;
@@ -169,18 +214,16 @@ namespace game
                 ZZTimeHelper.WathForcusChange();
                 if (!original.CompareDatas(ZZTimeHelper.UtcNow().Ticks).Success)
                 {
-                    KVLastError = PlayerKVGameLoadError.Apply;
                     await FailLoginAsync();
                     return ELoginStep.Api;
                 }
                 var merged = original.ReadLocalSnapshot();
                 if (!merged.Success)
                 {
-                    KVLastError = PlayerKVGameLoadError.Apply;
                     await FailLoginAsync();
                     return ELoginStep.Api;
                 }
-                KVMgr.Bind(store);
+                KvMgr.Bind(store);
                 InitializePlayerData(merged.Data.ToDictionary(pair => pair.Key, pair => pair.Value, StringComparer.Ordinal));
                 if (!KVHandoffReady || CustomId != requestedId)
                 {
@@ -194,7 +237,6 @@ namespace game
                 }
                 catch (Exception ex)
                 {
-                    KVLastError = PlayerKVGameLoadError.Apply;
                     Debug.LogError("KV prompt binding failed: " + ex.GetType().Name);
                     await FailLoginAsync();
                     return ELoginStep.Api;
@@ -236,7 +278,6 @@ namespace game
                 {
                     throw;
                 }
-                KVLastError = PlayerKVGameLoadError.Apply;
                 Debug.LogError("KV login failed: " + ex.GetType().Name);
                 try
                 {
@@ -294,7 +335,7 @@ namespace game
             InitData(data);
         }
 
-        private async Task PrepareProfileAsync(PlayerKVAccountDescriptor account)
+        private async Task PrepareProfileAsync(KvAccountDescriptor account)
         {
             if (account.InternalId == 0 || account.CreateTimeUtc == DateTime.MinValue || account.ServerTimeUtc == DateTime.MinValue)
             {
@@ -361,21 +402,18 @@ namespace game
             {
                 return true;
             }
-            var status = await (coordinator?.ObserveQuitAsync() ?? Task.FromResult(PlayerKVShutdownStatus.Ready));
+            var status = await (coordinator?.ObserveQuitAsync() ?? Task.FromResult(KVShutdownStatus.Ready));
-            if (closing || status != PlayerKVShutdownStatus.Ready || closeTask.Status != TaskStatus.RanToCompletion)
+            if (closing || status != KVShutdownStatus.Ready || closeTask.Status != TaskStatus.RanToCompletion)
             {
-                KVLastError = status == PlayerKVShutdownStatus.Failed || closeTask.IsFaulted ?
-                    PlayerKVGameLoadError.PreviousCloseFailed : PlayerKVGameLoadError.PreviousClosePending;
                 return false;
             }
             if (failedHandle != null)
             {
-                KVMgr.Unbind(SaveStore as KVPlayerSaveStore);
+                KvMgr.Unbind(SaveStore as KvSaveStore);
-                (SaveStore as KVPlayerSaveStore)?.ReleaseFailedBinding(failedHandle);
+                (SaveStore as KvSaveStore)?.ReleaseFailedBinding(failedHandle);
                 (GContext.container.Resolve<ISettingService>() as DefaultSettingService)?.ReleaseFailedPromptOwner(failedHandle);
                 GContext.container.Resolve<ClubService>().ReleaseFailedPromptOwner(failedHandle);
             }
-            promptsBound = false;
             failedHandle = null;
             closeTask = null;
             coordinator = null;
@@ -385,54 +423,67 @@ namespace game
 
         internal static DateTime ParseLastLoginTime(string value, bool found)
         {
-            if (!found) return DateTime.MinValue;
+            if (!found)
+            {
+                return DateTime.MinValue;
+            }
             if (!DateTime.TryParseExact(value, "O", CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind, out var time) ||
                 time == DateTime.MinValue || time.Kind == DateTimeKind.Unspecified)
+            {
                 throw new FormatException("Invalid LastLoginTimeUtc.");
+            }
             return time.ToUniversalTime();
         }
 
-        PlayerSaveReadResult Read(string key)
+        private PlayerSaveReadResult Read(string key)
         {
             var result = SaveStore.Read(key);
-            if (!result.Success) throw new InvalidOperationException("KV profile read failed: " + result.Error);
+            if (!result.Success)
+            {
+                throw new InvalidOperationException("KV profile read failed: " + result.Error);
+            }
             return result;
         }
 
-        void BindPromptServices(PlayerKVGameSessionHandle original)
+        private void BindPromptServices(KvSessionOwner original)
         {
-            if (promptsBound || !KVHandoffReady) throw new InvalidOperationException("Prompt binding is stale.");
+            if (!KVHandoffReady)
+            {
+                throw new InvalidOperationException("Prompt binding is stale.");
+            }
             var settings = GContext.container.Resolve<ISettingService>() as DefaultSettingService;
             var notifications = GContext.container.Resolve<ILocalNotificationService>() as LocalNotificationService;
             var club = GContext.container.Resolve<ClubService>();
-            if (settings == null || notifications == null || club == null ||
+            if (settings == null || notifications == null || club == null)
-                !ReferenceEquals(settings, GContext.container.Resolve<ISettingService>()) ||
+            {
-                !ReferenceEquals(notifications, GContext.container.Resolve<ILocalNotificationService>()) ||
-                !ReferenceEquals(club, GContext.container.Resolve<ClubService>()))
                 throw new InvalidOperationException("Formal prompt services required.");
+            }
             settings.PreflightFormalPromptOwner(original);
             club.PreflightFormalPromptOwner(original);
             notifications.PreflightFormalPromptSettings(settings);
-            promptsBound = true;
             settings.BindFormalPromptOwner(original);
             club.BindFormalPromptOwner(original);
             notifications.BindFormalPromptSettings(settings);
-            if (!settings.HasFormalPromptOwner(original) || !club.HasFormalPromptOwner(original) ||
+            if (!KVHandoffReady)
-                !notifications.HasFormalPromptSettings(settings) || !KVHandoffReady)
+            {
                 throw new InvalidOperationException("Formal prompt binding changed.");
+            }
         }
 
-        void OnUnauthorized(int version)
+        private void OnUnauthorized(int version)
         {
-            if (version == customServerMgr.SessionVersion) Logout();
+            if (version == customServerMgr.SessionVersion)
+            {
+                Logout();
+            }
         }
 
         private void OnApplicationQuitting()
         {
-            var original = SaveStore as KVPlayerSaveStore;
+            var original = SaveStore as KvSaveStore;
             try
             {
-                KVMgr.Stop(original);
+                KvMgr.Stop(original);
                 if (original != null && original.IsCurrent)
                 {
                     _ = original.SyncDataAsync();
@@ -452,10 +503,16 @@ namespace game
         {
             ObserveClose(CloseKVForValidationAsync());
         }
-        async void ObserveClose(Task task)
+        private async void ObserveClose(Task task)
         {
-            try { await task; }
+            try
-            catch (Exception ex) { Debug.LogError("KV close failed: " + ex.GetType().Name); }
+            {
+                await task;
+            }
+            catch (Exception ex)
+            {
+                Debug.LogError("KV close failed: " + ex.GetType().Name);
+            }
         }
         internal Task CloseKVForValidationAsync()
         {
@@ -465,8 +522,8 @@ namespace game
             }
             closing = true;
             published = false;
-            KVMgr.Unbind(SaveStore as KVPlayerSaveStore);
+            KvMgr.Unbind(SaveStore as KvSaveStore);
-            (SaveStore as KVPlayerSaveStore)?.Dispose();
+            (SaveStore as KvSaveStore)?.Dispose();
             playerId = null;
             internalId = 0;
             handle = null;
@@ -484,10 +541,8 @@ namespace game
             lifetime.Cancel();
             return closeTask;
         }
-        Task IKVUserLifecycle.CloseKVForValidationAsync() => CloseKVForValidationAsync();
+        internal Task<KVShutdownStatus> ObserveKVQuitAsync() =>
-        internal Task<PlayerKVShutdownStatus> ObserveKVQuitAsync() =>
+            coordinator?.ObserveQuitAsync() ?? Task.FromResult(KVShutdownStatus.Ready);
-            coordinator?.ObserveQuitAsync() ?? Task.FromResult(PlayerKVShutdownStatus.Ready);
-        Task<PlayerKVShutdownStatus> IKVUserLifecycle.ObserveKVQuitAsync() => ObserveKVQuitAsync();
 
         private async Task<bool> SaveProfile(string key, string value)
         {
@@ -667,18 +722,105 @@ namespace game
             };
             Debug.Log($"JsonUtility.ToJson(versionData) => {JsonConvert.SerializeObject(versionData)}");
 
+#if (UNITY_ANDROID || UNITY_IOS || UNITY_IPHONE) && !UNITY_EDITOR
             var businessId = GConstant.Yidun_AndroidBusinessId;
 #if UNITY_IOS
             businessId = GConstant.Yidun_IOSBusinessId;
 #endif
 
-#if (UNITY_ANDROID || UNITY_IOS || UNITY_IPHONE) && !UNITY_EDITOR
             yiDunManager.SetRoleInfo(businessId, roleId, roleName, roleAccount, null, -1, JsonConvert.SerializeObject(versionData));
             yiDunManager.PostRiskCheck();
 #endif
         }
 
         public double CreateTotalSeconds() => (ZZTimeHelper.UtcNow() - CreateTime).TotalSeconds;
+
+        private sealed class BindConflictPreviewResponse
+        {
+            public int Code
+            {
+                get;
+                set;
+            }
+            public bool Exists
+            {
+                get;
+                set;
+            }
+            public bool HasArchive
+            {
+                get;
+                set;
+            }
+            public string DisplayName
+            {
+                get;
+                set;
+            }
+            public string AvatarUrl
+            {
+                get;
+                set;
+            }
+            public int Level
+            {
+                get;
+                set;
+            }
+        }
+
+        public async Task<PlayFabTools.PFPlayerInfo> GetBindConflictPreview(int sdkId)
+        {
+            try
+            {
+                string json = null;
+                for (var attempt = 0; attempt < 4; attempt++)
+                {
+                    json = await customServerMgr.AccountRequest("GetBindConflictPreview",
+                        new { targetUserId = sdkId.ToString() });
+                    if (json != null)
+                    {
+                        break;
+                    }
+                    if (attempt < 3)
+                    {
+                        await Task.Delay(TimeSpan.FromSeconds(1 << attempt));
+                    }
+                }
+                if (string.IsNullOrEmpty(json))
+                {
+                    return PlayFabTools.PFPlayerInfo.Empty(sdkId);
+                }
+
+                var response = JsonConvert.DeserializeObject<BindConflictPreviewResponse>(json);
+                if (response == null || response.Code <= 0 || !response.Exists)
+                {
+                    return PlayFabTools.PFPlayerInfo.Empty(sdkId);
+                }
+                if (!response.HasArchive)
+                {
+                    return new PlayFabTools.PFPlayerInfo
+                    {
+                        SdkId = sdkId,
+                        PlayFabId = sdkId.ToString()
+                    };
+                }
+                return new PlayFabTools.PFPlayerInfo
+                {
+                    SdkId = sdkId,
+                    PlayFabId = sdkId.ToString(),
+                    DisplayName = response.DisplayName,
+                    Avatar = response.AvatarUrl,
+                    Level = response.Level
+                };
+            }
+            catch (Exception e)
+            {
+                Debug.LogWarning(e.Message);
+                return PlayFabTools.PFPlayerInfo.Empty(sdkId);
+            }
+        }
+
         // The non-AGG channel has no account-link operation; never manufacture a successful binding.
         public virtual async Task<(int code, int userid)> LinkAccount(EAccoutType type)
         {
@@ -730,7 +872,10 @@ namespace game
         }
         public PlayInfo GetPlayInfo(string id)
         {
-            if (string.IsNullOrEmpty(id)) return null;
+            if (string.IsNullOrEmpty(id))
+            {
+                return null;
+            }
             if (!profiles.TryGetValue(id, out var profile))
             {
                 profile = new PlayInfo { name = GetDefaultName(id) };
@@ -781,7 +926,11 @@ namespace game
                 avatarUrl = avatarUrl
             };
         }
-        public void ClearPlayInfos() { profiles.Clear(); levels.Clear(); }
+        public void ClearPlayInfos()
+        {
+            profiles.Clear();
+            levels.Clear();
+        }
         private void UpdateProfileName()
         {
             if (!IsAuthorized)
@@ -808,13 +957,25 @@ namespace game
         }
         public void UpdateProfile()
         {
-            if (IsAuthorized) customServerMgr.AccountRequest("UpdateProfile", new LoginRequest { playerId = ApiPlayerId,
+            if (IsAuthorized)
-                playerProfile = new PlayerProfile { Level = GContext.container.Resolve<PlayerData>().lv, Avatar = AvatarUrl, DisplayName = DisplayName } });
+            {
+                customServerMgr.AccountRequest("UpdateProfile", new LoginRequest
+                {
+                    playerId = ApiPlayerId,
+                    playerProfile = new PlayerProfile { Level = GContext.container.Resolve<PlayerData>().lv, Avatar = AvatarUrl, DisplayName = DisplayName }
+                });
+            }
         }
         public void UpdateProfileLv()
         {
-            if (IsAuthorized) customServerMgr.AccountRequest("UpdateProfile", new LoginRequest { playerId = ApiPlayerId,
+            if (IsAuthorized)
-                playerProfile = new PlayerProfile { Level = GContext.container.Resolve<PlayerData>().lv } });
+            {
+                customServerMgr.AccountRequest("UpdateProfile", new LoginRequest
+                {
+                    playerId = ApiPlayerId,
+                    playerProfile = new PlayerProfile { Level = GContext.container.Resolve<PlayerData>().lv }
+                });
+            }
         }
     }
 }

Client/Assets/Scripts/Services/PlayerData/IKVUserLifecycle.cs

@@ -1,12 +0,0 @@
-using System.Threading.Tasks;
-
-namespace game.PlayerDataStorage
-{
-    internal interface IKVUserLifecycle
-    {
-        bool KVHandoffReady { get; }
-        PlayerKVGameLoadError KVLastError { get; }
-        Task CloseKVForValidationAsync();
-        Task<PlayerKVShutdownStatus> ObserveKVQuitAsync();
-    }
-}

Client/Assets/Scripts/Services/PlayerData/IKVUserLifecycle.cs.meta

@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: 12a766df765ed0d4981d8da38eead5e3
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Client/Assets/Scripts/Services/PlayerData/IPlayerSaveStore.cs

@@ -1,51 +0,0 @@
-using System;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace game.PlayerDataStorage
-{
-    // A store belongs to one login. Callers retain this instance across awaits.
-    public interface IPlayerSaveStore
-    {
-        bool IsCurrent { get; }
-        PlayerSaveReadResult Read(string key);
-        PlayerSaveWriteResult Write(string key, string value, bool remoteStore = true);
-        Task<bool> SyncDataImmidiate(string key, string value);
-    }
-
-    public sealed class PlayerSaveReadResult
-    {
-        public bool Success => Error == null;
-        public bool? Found { get; }
-        public string Value { get; }
-        public string Error { get; }
-        internal PlayerSaveReadResult(bool found, string value) { Found = found; Value = value; }
-        internal PlayerSaveReadResult(string error) { Error = error ?? "ReadFailed"; }
-        public string ValueOrThrow()
-        {
-            if (!Success) throw new InvalidOperationException("Player save read failed: " + Error);
-            return Value;
-        }
-    }
-
-    public sealed class PlayerSaveReceipt
-    {
-        internal readonly IPlayerSaveStore Store;
-        internal readonly object Ticket;
-        internal PlayerSaveReceipt(IPlayerSaveStore store, object ticket) { Store = store; Ticket = ticket; }
-    }
-
-    public sealed class PlayerSaveWriteResult
-    {
-        public bool Accepted => Error == null;
-        public string Error { get; }
-        public PlayerSaveReceipt Receipt { get; }
-        internal PlayerSaveWriteResult(PlayerSaveReceipt receipt) { Receipt = receipt; }
-        internal PlayerSaveWriteResult(string error) { Error = error ?? "WriteRejected"; }
-        public void RequireAccepted()
-        {
-            if (!Accepted) throw new InvalidOperationException("Player save write rejected: " + Error);
-        }
-    }
-
-}

Client/Assets/Scripts/Services/PlayerData/KvAccountLease.cs

@@ -0,0 +1,285 @@
+using System;
+using System.Diagnostics;
+using System.Globalization;
+using System.IO;
+using System.Net;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using game.Account;
+
+namespace game.KV
+{
+    public enum KVLoginPrepareError
+    {
+        None,
+        Validation,
+        Cancelled,
+        Stale,
+        AuthenticationFailed,
+        OwnerRejected,
+        NotReady,
+        Unexpected,
+        CloseFailed
+    }
+
+    internal sealed class KvAccountDescriptor
+    {
+        internal string PlayerId
+        {
+            get;
+        }
+        internal long Epoch
+        {
+            get;
+        }
+        internal uint InternalId
+        {
+            get;
+        }
+        internal bool NewlyCreated
+        {
+            get;
+        }
+        internal DateTime CreateTimeUtc
+        {
+            get;
+        }
+        internal DateTime ServerTimeUtc
+        {
+            get;
+        }
+        internal KvAccountDescriptor(string playerId, long epoch, uint internalId,
+            bool newlyCreated, DateTime createTimeUtc, DateTime serverTimeUtc)
+        {
+            PlayerId = playerId;
+            Epoch = epoch;
+            InternalId = internalId;
+            NewlyCreated = newlyCreated;
+            CreateTimeUtc = createTimeUtc;
+            ServerTimeUtc = serverTimeUtc;
+        }
+    }
+
+
+    internal sealed class KvAccountResponse
+    {
+        internal bool IsCurrent
+        {
+            get;
+        }
+        internal int? StatusCode
+        {
+            get;
+        }
+        internal string Body
+        {
+            get;
+        }
+        internal KvAccountResponse(bool isCurrent, int? statusCode = null, string body = null)
+        {
+            IsCurrent = isCurrent;
+            StatusCode = isCurrent ? statusCode : null;
+            Body = isCurrent ? body : null;
+        }
+    }
+
+    /// <summary>A context-owned account transport. Close drains before disposing its client.</summary>
+    internal sealed class KvAccountLease
+    {
+        private readonly object gate = new object();
+        private readonly HttpClient client;
+        private readonly CookieContainer cookies;
+        private readonly Func<bool> current;
+        private readonly Func<bool> admission;
+        private readonly CancellationTokenSource lifetime = new CancellationTokenSource();
+        private TaskCompletionSource<bool> drained;
+        private TaskCompletionSource<bool> closing;
+        private int active;
+        internal Uri ApiBaseUri
+        {
+            get;
+        }
+        internal long Epoch
+        {
+            get;
+        }
+        internal CookieContainer FormalCookies => IsCurrent ? cookies : null;
+        internal bool IsCurrent
+        {
+            get
+            {
+                lock (gate)
+                    if (closing != null)
+                    {
+                        return false;
+                    }
+                return current();
+            }
+        }
+
+        internal KvAccountLease(Uri api, long epoch, CookieContainer cookies,
+            Func<CookieContainer, HttpMessageHandler> capability, Func<bool> current, Func<bool> admission)
+        {
+            if (capability == null)
+            {
+                throw new ArgumentNullException(nameof(capability));
+            }
+            ApiBaseUri = api;
+            Epoch = epoch;
+            this.cookies = cookies;
+            this.current = current;
+            this.admission = admission;
+            client = new HttpClient(capability(cookies)) { BaseAddress = api };
+            client.Timeout = TimeSpan.FromSeconds(15);
+        }
+
+        internal async Task<KvAccountResponse> SendAsync(HttpMethod method, string route,
+            string body = null, string contentType = "application/json", CancellationToken token = default)
+        {
+            if (!IsCanonicalBusinessRoute(route))
+            {
+                throw new ArgumentException("Only canonical relative business routes are allowed.", nameof(route));
+            }
+            if (method != HttpMethod.Get && method != HttpMethod.Post)
+            {
+                throw new ArgumentException("Unsupported lease method.", nameof(method));
+            }
+            if (!IsCurrent)
+            {
+                return new KvAccountResponse(false);
+            }
+            lock (gate)
+            {
+                if (closing != null || !admission())
+                {
+                    return new KvAccountResponse(false);
+                }
+                active++;
+            }
+            try
+            {
+                using (var linked = CancellationTokenSource.CreateLinkedTokenSource(token, lifetime.Token))
+                using (var request = new HttpRequestMessage(method, route))
+                {
+                    if (body != null)
+                    {
+                        request.Content = new StringContent(body, System.Text.Encoding.UTF8, contentType);
+                    }
+                    using (var response = await client.SendAsync(request, linked.Token).ConfigureAwait(false))
+                    {
+                        if (!IsCurrent || linked.IsCancellationRequested)
+                        {
+                            return new KvAccountResponse(false);
+                        }
+                        var text = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
+                        // Do not follow redirects from the authenticated business endpoint.
+                        if ((int)response.StatusCode >= 300 && (int)response.StatusCode < 400)
+                        {
+                            throw new InvalidOperationException("Redirects are not accepted.");
+                        }
+                        return IsCurrent && !linked.IsCancellationRequested
+                            ? new KvAccountResponse(true, (int)response.StatusCode, text)
+                            : new KvAccountResponse(false);
+                    }
+                }
+            }
+            catch (OperationCanceledException) when (!IsCurrent || token.IsCancellationRequested || lifetime.IsCancellationRequested)
+            {
+                return new KvAccountResponse(false);
+            }
+            finally
+            {
+                lock (gate)
+                {
+                    active--;
+                    if (active == 0)
+                    {
+                        drained?.TrySetResult(true);
+                    }
+                }
+            }
+        }
+
+        private static bool IsCanonicalBusinessRoute(string route)
+        {
+            if (string.IsNullOrEmpty(route) || route[0] == '/' || route[0] == '\\' ||
+                Uri.TryCreate(route, UriKind.Absolute, out _) ||
+                route.IndexOf("//", StringComparison.Ordinal) >= 0 ||
+                route.IndexOfAny(new[] { '?', '#', '%', '\\' }) >= 0)
+            {
+                return false;
+            }
+            var segments = route.Split('/');
+            foreach (var segment in segments)
+            {
+                if (segment.Length == 0 || segment == "." || segment == "..")
+                {
+                    return false;
+                }
+                foreach (var character in segment)
+                    if (char.IsControl(character))
+                    {
+                        return false;
+                    }
+            }
+            return !route.Equals("account/Login", StringComparison.OrdinalIgnoreCase) &&
+                !route.Equals("playerdata", StringComparison.OrdinalIgnoreCase) &&
+                !route.StartsWith("playerdata/", StringComparison.OrdinalIgnoreCase);
+        }
+
+        internal Task CloseAsync()
+        {
+            TaskCompletionSource<bool> completion;
+            lock (gate)
+            {
+                if (closing != null)
+                {
+                    return closing.Task;
+                }
+                completion = closing = Signal();
+                drained = Signal();
+                if (active == 0)
+                {
+                    drained.TrySetResult(true);
+                }
+            }
+            _ = completion.Task.ContinueWith(t =>
+            {
+                _ = t.Exception;
+            }, CancellationToken.None,
+                TaskContinuationOptions.OnlyOnFaulted | TaskContinuationOptions.ExecuteSynchronously, TaskScheduler.Default);
+            _ = Task.Run(async () =>
+            {
+                try
+                {
+                    Exception cancellationFailure = null;
+                    try
+                    {
+                        lifetime.Cancel();
+                    }
+                    catch (Exception ex)
+                    {
+                        cancellationFailure = ex;
+                    }
+                    await drained.Task.ConfigureAwait(false);
+                    client.Dispose();
+                    lifetime.Dispose();
+                    if (cancellationFailure != null)
+                    {
+                        throw cancellationFailure;
+                    }
+                    completion.TrySetResult(true);
+                }
+                catch (Exception ex)
+                {
+                    completion.TrySetException(ex);
+                }
+            });
+            return completion.Task;
+        }
+
+        private static TaskCompletionSource<bool> Signal() =>
+            new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
+    }
+}

Client/Assets/Scripts/Services/PlayerData/KvRuntimeSelection.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Globalization;
+
+namespace game.KV
+{
+    /// <summary>
+    /// Immutable process-start selection with canonical positive numeric player identities.
+    /// </summary>
+    internal sealed class KvRuntimeSelection
+    {
+        internal bool IsKV
+        {
+            get;
+        }
+        internal Uri Api
+        {
+            get;
+        }
+
+        private KvRuntimeSelection(bool isKV, Uri api)
+        {
+            IsKV = isKV;
+            Api = api;
+        }
+
+        internal static string CompiledBackend
+        {
+            get
+            {
+#if USE_KV
+                return "kv";
+#else
+                return "playfab";
+#endif
+            }
+        }
+
+        internal static KvRuntimeSelection CaptureForBuild(string api)
+        {
+            var backend = CompiledBackend;
+            if (backend == "playfab")
+            {
+                return new KvRuntimeSelection(false, null);
+            }
+            if (!Uri.TryCreate(api, UriKind.Absolute, out var address) ||
+                (address.Scheme != "http" && address.Scheme != "https") ||
+                !string.IsNullOrEmpty(address.UserInfo) || !string.IsNullOrEmpty(address.Query) ||
+                !string.IsNullOrEmpty(address.Fragment))
+            {
+                throw new ArgumentException("KV API address is invalid.", nameof(api));
+            }
+            return new KvRuntimeSelection(true, new Uri(address.AbsoluteUri.TrimEnd('/') + "/"));
+        }
+
+        internal bool TryAdmitPlayer(string requestedId, out string canonicalId)
+        {
+            canonicalId = null;
+            if (!IsKV || !long.TryParse(requestedId, NumberStyles.None, CultureInfo.InvariantCulture, out var id) ||
+                id <= 0)
+            {
+                return false;
+            }
+            canonicalId = id.ToString(CultureInfo.InvariantCulture);
+            return true;
+        }
+    }
+}