fix: 存档功能修理

Assets/Scripts/SaveSystem/README.md

@@ -49,6 +49,8 @@ tags: content save_on_exit
 
 - `interaction` / `save_on_exit` 进入时不存档；对应节点完成后若直接结束本轮 Dialogue，则自动保存 state-only 档。
 - 若执行路径继续 `jump` / `detour` 到其他 Yarn 节点，退出档会取消并记录告警。
+- run / flow / current-node 稳定性只约束 `DialogueExit`：任何后续 Yarn 节点（包括 `detour`、`no_save`）都会取消节点末尾存档。
+- 普通 `NodeEnter` 和兼容命令 `<<save>>` 不受后续节点流转影响；它们始终使用请求触发时冻结的 node / YarnProject / TalkScene 生成 anchor，并继续进入串行写盘队列。
 - 放在目标节点**末尾**：所有状态命令（`switch_fix_system_to`、`hide_dialog`、`play_timeline` 等）执行完毕之后，`<<jump>>` / `<<detour>>` 之前。
 - `anchor.nodeName` 始终保留来源节点；`anchor.startDialogueOnRestore=false`，读档时只加载 YarnProject，不启动节点。
 - 退出档在 `DialogEnd` 同步初始化后等待一帧捕获；这一帧由 scoped interaction lock 保持输入锁定，捕获进入写盘队列后再交出控制权。
@@ -153,6 +155,7 @@ Postflight 校验
 - **核心层**（`scene`、`anchor`、`yarnVariables`）由 `SnapshotRestore` 框架直管，不通过 Provider 注册。
 - **表现层**（`sections` 内各子系统）通过 `ISnapshotProvider` 扩展；`RestoreOrder` 表示同 Phase 内的建议顺序或软依赖。
 - **逐项还原（D1）**指各子系统各自写回状态，**不是** Provider 之间逐步 `yield return`。
+- Postflight 只核对 Scene、TalkSceneSO、YarnProject 与必要 Provider readiness；不要求 RestartNode 仍停在 anchor，也不校验 StateOnly 结束后的 DialogueRunner 状态。
 
 Provider 使用 `ISyncSnapshotProvider` 或 `IAsyncSnapshotProvider` 显式声明同步/异步恢复；异步 Provider 必须把等待过程返回给编排层，禁止内部 fire-and-forget。
 

Assets/Scripts/SaveSystem/SaveRestoreOrchestrator.cs

@@ -422,18 +422,6 @@ namespace AibisDream.SaveSystem
                 return false;
             }
 
-            if (dialog.DialogueRunId != request.DialogueRunId)
-            {
-                reason = $"dialogue run changed ({request.DialogueRunId} -> {dialog.DialogueRunId})";
-                return false;
-            }
-
-            if (dialog.DialogueFlowVersion != request.FlowRevision)
-            {
-                reason = $"flow revision changed ({request.FlowRevision} -> {dialog.DialogueFlowVersion})";
-                return false;
-            }
-
             if (!string.Equals(runner.YarnProject?.name, request.YarnProjectId, StringComparison.Ordinal))
             {
                 reason = $"YarnProject changed to {runner.YarnProject?.name ?? "(none)"}";
@@ -454,33 +442,51 @@ namespace AibisDream.SaveSystem
             }
 
             var (currentNodeName, _) = dialog.GetCurrentNodeContext();
-            if (request.Trigger == SaveTrigger.DialogueExit)
-            {
-                if (runner.IsDialogueRunning)
-                {
-                    reason = "DialogueRunner is still running";
-                    return false;
-                }
+            return ValidateDialogueTiming(
+                request,
+                dialog.DialogueRunId,
+                dialog.DialogueFlowVersion,
+                currentNodeName,
+                runner.IsDialogueRunning,
+                out reason);
+        }
 
-                if (!string.IsNullOrEmpty(currentNodeName))
-                {
-                    reason = $"a current Yarn node is still present: {currentNodeName}";
-                    return false;
-                }
+        internal static bool ValidateDialogueTiming(
+            SaveRequest request,
+            long currentDialogueRunId,
+            long currentFlowRevision,
+            string currentNodeName,
+            bool isDialogueRunning,
+            out string reason)
+        {
+            if (request.Trigger != SaveTrigger.DialogueExit)
+            {
+                reason = null;
+                return true;
             }
-            else
-            {
-                if (!runner.IsDialogueRunning)
-                {
-                    reason = "DialogueRunner stopped before capture";
-                    return false;
-                }
 
-                if (!string.Equals(currentNodeName, request.SourceNodeName, StringComparison.Ordinal))
-                {
-                    reason = $"current node changed to {currentNodeName ?? "(none)"}";
-                    return false;
-                }
+            if (currentDialogueRunId != request.DialogueRunId)
+            {
+                reason = $"dialogue run changed ({request.DialogueRunId} -> {currentDialogueRunId})";
+                return false;
+            }
+
+            if (currentFlowRevision != request.FlowRevision)
+            {
+                reason = $"flow revision changed ({request.FlowRevision} -> {currentFlowRevision})";
+                return false;
+            }
+
+            if (isDialogueRunning)
+            {
+                reason = "DialogueRunner is still running";
+                return false;
+            }
+
+            if (!string.IsNullOrEmpty(currentNodeName))
+            {
+                reason = $"a current Yarn node is still present: {currentNodeName}";
+                return false;
             }
 
             reason = null;
@@ -775,23 +781,6 @@ namespace AibisDream.SaveSystem
             var runner = DialogController.Instance?.DialogueRunner;
             if (!string.Equals(runner?.YarnProject?.name, snapshot.anchor.yarnProjectId, StringComparison.Ordinal))
                 context.Error($"YarnProject mismatch: {runner?.YarnProject?.name ?? "none"}.");
-            if (snapshot.anchor.startDialogueOnRestore)
-            {
-                var (currentNodeName, _) = DialogController.Instance != null
-                    ? DialogController.Instance.GetCurrentNodeContext()
-                    : (null, null);
-                if (runner == null || !runner.IsDialogueRunning)
-                    context.Error($"Yarn node did not start: {snapshot.anchor.nodeName}.");
-                else if (!string.Equals(currentNodeName, snapshot.anchor.nodeName, StringComparison.Ordinal))
-                    context.Error(
-                        $"Yarn node mismatch: expected {snapshot.anchor.nodeName}, " +
-                        $"actual {currentNodeName ?? "none"}.");
-            }
-            else if (runner != null && runner.IsDialogueRunning)
-            {
-                context.Error(
-                    $"StateOnly restore unexpectedly started Yarn node {snapshot.anchor.nodeName}.");
-            }
 
             if (snapshot.sections != null
                 && snapshot.sections.ContainsKey(SnapshotProviderIds.Fix)