之前是会话tab激活的会话不被空闲回收，现在改为会话tab所有的会话都不被空闲回收

src/app/folder/layout.tsx

@@ -1,6 +1,13 @@
 "use client"
 
-import { Suspense, useCallback, useEffect, useRef, useState } from "react"
+import {
+  Suspense,
+  useMemo,
+  useCallback,
+  useEffect,
+  useRef,
+  useState,
+} from "react"
 import { useSearchParams } from "next/navigation"
 import type { ImperativePanelGroupHandle } from "react-resizable-panels"
 import { FolderTitleBar } from "@/components/layout/folder-title-bar"
@@ -9,9 +16,12 @@ import { StatusBar } from "@/components/layout/status-bar"
 import { FolderProvider } from "@/contexts/folder-context"
 import { TaskProvider } from "@/contexts/task-context"
 import { AlertProvider } from "@/contexts/alert-context"
-import { AcpConnectionsProvider } from "@/contexts/acp-connections-context"
+import {
+  AcpConnectionsProvider,
+  useAcpActions,
+} from "@/contexts/acp-connections-context"
 import { ConversationRuntimeProvider } from "@/contexts/conversation-runtime-context"
-import { TabProvider } from "@/contexts/tab-context"
+import { TabProvider, useTabContext } from "@/contexts/tab-context"
 import { SessionStatsProvider } from "@/contexts/session-stats-context"
 import { SidebarProvider, useSidebarContext } from "@/contexts/sidebar-context"
 import {
@@ -58,6 +68,17 @@ const MIN_CENTER_WIDTH_PX = 420
 const MIN_WORKSPACE_HEIGHT_PX = 220
 const LAYOUT_EPSILON = 0.25
 
+/** Syncs open tab keys from TabProvider to AcpConnectionsProvider */
+function TabKeysSync() {
+  const { tabs } = useTabContext()
+  const { registerOpenTabKeys } = useAcpActions()
+  const keys = useMemo(() => new Set(tabs.map((t) => t.id)), [tabs])
+  useEffect(() => {
+    registerOpenTabKeys(keys)
+  }, [keys, registerOpenTabKeys])
+  return null
+}
+
 function isSameLayout(a: number[], b: number[]): boolean {
   if (a.length !== b.length) return false
   return a.every((value, index) => Math.abs(value - b[index]) <= LAYOUT_EPSILON)
@@ -649,6 +670,7 @@ function FolderLayoutInner({ children }: { children: React.ReactNode }) {
               <ConversationRuntimeProvider>
                 <WorkspaceProvider key={`workspace-${normalizedFolderId}`}>
                   <TabProvider>
+                    <TabKeysSync />
                     <SessionStatsProvider>
                       <SidebarProvider
                         key={`left-sidebar-${normalizedFolderId}`}