fix xdfx task start context recovery

frontend-web/src/strategy-components/components/task-components/TaskFxWorkspace.tsx

@@ -37,6 +37,7 @@ import {
 } from "@/core/auth/task-purpose";
 import {
   fetchActionDetail,
+  readActionDetail,
   readCopTaskDetail,
   type ActionDetail,
 } from "@/core/auth/task-deeplink";
@@ -61,12 +62,22 @@ function useChatsBase(taskBase: string): {
   const agentId = agent_id ?? "";
   const ctx = readTaskContext();
   const detail = readCopTaskDetail();
+  const isXdfx = taskBase.includes("/plan-task-action");
+  const cachedAction = isXdfx ? readActionDetail() : null;
   const fallbackTaskId =
     detail?.id == null ? "" : String(detail.id).trim();
+  const fallbackActionId = cachedAction?.id ? String(cachedAction.id).trim() : "";
+  const fallbackActionTaskId = cachedAction?.taskId ? String(cachedAction.taskId).trim() : "";
+  const hasMatchingAction =
+    !!fallbackActionId && !!fallbackActionTaskId && fallbackActionTaskId === fallbackTaskId;
   // 3qfx 偶发会出现 task context 丢失，但任务详情仍在 sessionStorage 的情况。
   // 这里回退到任务详情里的 taskId，避免左侧对话列表直接失效成“空任务态”。
-  const taskId = ctx?.taskId ?? fallbackTaskId;
-  const actionId = ctx?.partitionByAction ? (ctx.actionId ?? "") : "";
+  const taskId = ctx?.taskId ?? (hasMatchingAction ? fallbackActionTaskId : fallbackTaskId);
+  const actionId = ctx?.partitionByAction
+    ? (ctx.actionId ?? "")
+    : hasMatchingAction
+      ? fallbackActionId
+      : "";
   return { taskId, agentId, actionId, chatsBase: `${taskBase}/agent/${agentId}/chats` };
 }