Improve workspace sidebar and file panel

frontend/app/app/api/claw/files/route.ts

@@ -1,6 +1,11 @@
-import { readFile, stat } from "node:fs/promises";
+import { readdir, readFile, stat } from "node:fs/promises";
 import path from "node:path";
-import { accountBaseRoot, getCurrentAccount } from "@/lib/claw-auth";
+import {
+	accountBaseRoot,
+	accountSessionInputRoot,
+	accountSessionOutputRoot,
+	getCurrentAccount,
+} from "@/lib/claw-auth";
 
 export const runtime = "nodejs";
 
@@ -11,8 +16,15 @@ export async function GET(req: Request) {
 
 	const url = new URL(req.url);
 	const requestedPath = url.searchParams.get("path");
+	const sessionId = url.searchParams.get("session_id");
+	if (!requestedPath && sessionId) {
+		return Response.json({
+			input: await listSessionFiles(account.id, sessionId, "input"),
+			output: await listSessionFiles(account.id, sessionId, "output"),
+		});
+	}
 	if (!requestedPath) {
-		return Response.json({ error: "缺少文件路径" }, { status: 400 });
+		return Response.json({ error: "缺少文件路径或会话 ID" }, { status: 400 });
 	}
 
 	const accountRoot = path.resolve(accountBaseRoot(account.id));
@@ -38,6 +50,43 @@ export async function GET(req: Request) {
 	}
 }
 
+async function listSessionFiles(
+	accountId: string,
+	sessionId: string,
+	kind: "input" | "output",
+) {
+	const accountRoot = path.resolve(accountBaseRoot(accountId));
+	const dir =
+		kind === "input"
+			? accountSessionInputRoot(accountId, sessionId)
+			: accountSessionOutputRoot(accountId, sessionId);
+	const resolvedDir = path.resolve(dir);
+	if (!resolvedDir.startsWith(`${accountRoot}${path.sep}`)) return [];
+
+	try {
+		const entries = await readdir(resolvedDir, { withFileTypes: true });
+		const files = await Promise.all(
+			entries
+				.filter((entry) => entry.isFile())
+				.map(async (entry) => {
+					const filePath = path.join(resolvedDir, entry.name);
+					const fileStat = await stat(filePath);
+					return {
+						name: entry.name,
+						path: filePath,
+						kind,
+						size: fileStat.size,
+						modified_at: fileStat.mtime.toISOString(),
+						download_url: `/api/claw/files?path=${encodeURIComponent(filePath)}`,
+					};
+				}),
+		);
+		return files.sort((a, b) => b.modified_at.localeCompare(a.modified_at));
+	} catch {
+		return [];
+	}
+}
+
 function contentTypeFor(filePath: string) {
 	const ext = path.extname(filePath).toLowerCase();
 	if (ext === ".json") return "application/json; charset=utf-8";

frontend/app/app/assistant.tsx

@@ -14,16 +14,9 @@ import {
 } from "@/components/assistant-ui/activity-panel";
 import { Thread } from "@/components/assistant-ui/thread";
 import { ThreadListSidebar } from "@/components/assistant-ui/threadlist-sidebar";
-import { Separator } from "@/components/ui/separator";
+import { SidebarInset, SidebarProvider } from "@/components/ui/sidebar";
-import {
-	SidebarInset,
-	SidebarProvider,
-	SidebarTrigger,
-} from "@/components/ui/sidebar";
 import { ClawSessionReplayProvider } from "@/lib/claw-session-replay";
 import { ClawAccountGate, useClawAccount } from "./claw-account-gate";
-import { ClawLlmSettings } from "./claw-llm-settings";
-import { ClawThemeSwitcher } from "./claw-theme-switcher";
 
 export const Assistant = () => {
 	const { account, isLoading, setAccount } = useClawAccount();
@@ -83,24 +76,12 @@ export const Assistant = () => {
 			<ClawSessionReplayProvider value={{ replaySession }}>
 				<ActivityProvider>
 					<SidebarProvider>
-						<div className="flex h-dvh w-full pr-0.5">
+						<div className="flex h-dvh w-full">
 							<ThreadListSidebar
 								account={account}
 								onLogout={() => setAccount(null)}
 							/>
 							<SidebarInset>
-								<header className="flex h-16 shrink-0 items-center gap-2 border-b px-4">
-									<SidebarTrigger />
-									<Separator orientation="vertical" className="mr-2 h-4" />
-									<div className="min-w-0 flex-1">
-										<div className="truncate font-medium text-sm">新会话</div>
-										<div className="text-muted-foreground text-xs">
-											ZK Data Agent
-										</div>
-									</div>
-									<ClawThemeSwitcher />
-									<ClawLlmSettings />
-								</header>
 								<div className="flex min-h-0 flex-1 overflow-hidden">
 									<div className="min-w-0 flex-1 overflow-hidden">
 										<Thread />

frontend/app/components/assistant-ui/activity-panel.tsx

@@ -12,7 +12,9 @@ import {
 	CheckCircle2Icon,
 	ChevronDownIcon,
 	ClockIcon,
+	DownloadIcon,
 	FileTextIcon,
+	MessageSquareTextIcon,
 	PanelRightCloseIcon,
 	WrenchIcon,
 	XCircleIcon,
@@ -37,8 +39,11 @@ import { cn } from "@/lib/utils";
 
 type ActivityContextValue = {
 	open: boolean;
+	mode: "activity" | "files";
 	selectedId: string | null;
+	sessionId: string | null;
 	openItem: (id: string) => void;
+	openFiles: (sessionId?: string | null) => void;
 	close: () => void;
 };
 
@@ -46,20 +51,36 @@ const ActivityContext = createContext<ActivityContextValue | null>(null);
 
 export function ActivityProvider({ children }: { children: ReactNode }) {
 	const [open, setOpen] = useState(false);
+	const [mode, setMode] = useState<"activity" | "files">("activity");
 	const [selectedId, setSelectedId] = useState<string | null>(null);
+	const [sessionId, setSessionId] = useState<string | null>(null);
 	const openItem = useCallback((id: string) => {
+		setMode("activity");
 		setSelectedId(id);
 		setOpen(true);
 	}, []);
+	const openFiles = useCallback((nextSessionId?: string | null) => {
+		setMode("files");
+		setSessionId(
+			nextSessionId ??
+				(typeof window !== "undefined"
+					? window.localStorage.getItem("claw.activeSessionId")
+					: null),
+		);
+		setOpen(true);
+	}, []);
 	const close = useCallback(() => setOpen(false), []);
 	const value = useMemo(
 		() => ({
 			open,
+			mode,
 			selectedId,
+			sessionId,
 			openItem,
+			openFiles,
 			close,
 		}),
-		[open, selectedId, openItem, close],
+		[open, mode, selectedId, sessionId, openItem, openFiles, close],
 	);
 
 	return (
@@ -91,7 +112,8 @@ type ActivityItem = {
 };
 
 export function ActivityPanel() {
-	const { open, selectedId, openItem, close } = useActivityPanel();
+	const { open, mode, selectedId, sessionId, openItem, close } =
+		useActivityPanel();
 	const messages = useAuiState((s) => s.thread.messages);
 	const items = useMemo(() => collectActivityItems(messages), [messages]);
 	const selectedMessageId = selectedId ? activityMessageId(selectedId) : null;
@@ -101,14 +123,18 @@ export function ActivityPanel() {
 	const prevCountRef = useRef(0);
 
 	useEffect(() => {
-		if (items.length > prevCountRef.current) {
+		if (mode === "activity" && items.length > prevCountRef.current) {
 			openItem(items.at(-1)?.id ?? items[0]?.id ?? "");
 		}
 		prevCountRef.current = items.length;
-	}, [items, openItem]);
+	}, [items, mode, openItem]);
 
 	if (!open) return null;
 
+	if (mode === "files") {
+		return <SessionFilesPanel sessionId={sessionId} onClose={close} />;
+	}
+
 	return (
 		<aside className="fixed inset-y-0 right-0 z-30 flex w-[min(23rem,calc(100vw-1rem))] flex-col border-l bg-background shadow-xl lg:static lg:z-auto lg:h-full lg:w-92 lg:shrink-0 lg:shadow-none">
 			<header className="flex h-16 shrink-0 items-center justify-between border-b px-4">
@@ -155,6 +181,195 @@ export function ActivityPanel() {
 	);
 }
 
+type SessionFile = {
+	name: string;
+	path: string;
+	kind: "input" | "output";
+	size: number;
+	modified_at: string;
+	download_url: string;
+};
+
+type SessionFilesPayload = {
+	input?: SessionFile[];
+	output?: SessionFile[];
+	error?: string;
+};
+
+function SessionFilesPanel({
+	sessionId,
+	onClose,
+}: {
+	sessionId: string | null;
+	onClose: () => void;
+}) {
+	const [payload, setPayload] = useState<SessionFilesPayload | null>(null);
+	const [status, setStatus] = useState("正在读取聊天中的文件...");
+
+	useEffect(() => {
+		let cancelled = false;
+		async function loadFiles() {
+			const activeSessionId =
+				sessionId ?? window.localStorage.getItem("claw.activeSessionId");
+			if (!activeSessionId) {
+				setPayload({ input: [], output: [] });
+				setStatus("当前还没有可用会话。");
+				return;
+			}
+			setStatus("正在读取聊天中的文件...");
+			try {
+				const url = new URL("/api/claw/files", window.location.origin);
+				url.searchParams.set("session_id", activeSessionId);
+				const response = await fetch(url, { cache: "no-store" });
+				const nextPayload = (await response.json()) as SessionFilesPayload;
+				if (cancelled) return;
+				if (!response.ok) {
+					setPayload({ input: [], output: [], error: nextPayload.error });
+					setStatus(nextPayload.error ?? "读取文件失败");
+					return;
+				}
+				setPayload(nextPayload);
+				setStatus("");
+			} catch (err) {
+				if (!cancelled) {
+					setPayload({ input: [], output: [] });
+					setStatus(err instanceof Error ? err.message : "读取文件失败");
+				}
+			}
+		}
+		loadFiles();
+		return () => {
+			cancelled = true;
+		};
+	}, [sessionId]);
+
+	const inputFiles = payload?.input ?? [];
+	const outputFiles = payload?.output ?? [];
+	const total = inputFiles.length + outputFiles.length;
+
+	return (
+		<aside className="fixed inset-y-0 right-0 z-30 flex w-[min(25rem,calc(100vw-1rem))] flex-col border-l bg-background shadow-xl lg:static lg:z-auto lg:h-full lg:w-96 lg:shrink-0 lg:shadow-none">
+			<header className="flex h-16 shrink-0 items-center justify-between border-b px-4">
+				<div className="min-w-0">
+					<h2 className="font-semibold text-base">聊天中的文件</h2>
+					<p className="text-muted-foreground text-xs">
+						{status || `${total} 个文件`}
+					</p>
+				</div>
+				<Button
+					type="button"
+					variant="ghost"
+					size="icon"
+					className="size-8"
+					onClick={onClose}
+					aria-label="关闭文件面板"
+				>
+					<PanelRightCloseIcon className="size-4" />
+				</Button>
+			</header>
+			<div className="min-h-0 flex-1 overflow-y-auto px-4 py-4">
+				{!status && total === 0 ? (
+					<p className="text-muted-foreground text-sm">
+						当前聊天还没有上传文件或输出文件。
+					</p>
+				) : null}
+				<FileSection title="输入" files={inputFiles} />
+				<FileSection title="输出" files={outputFiles} />
+			</div>
+		</aside>
+	);
+}
+
+function FileSection({
+	title,
+	files,
+}: {
+	title: string;
+	files: SessionFile[];
+}) {
+	return (
+		<section className="mb-5">
+			<div className="mb-2 flex items-center justify-between">
+				<h3 className="font-medium text-sm">{title}</h3>
+				<span className="text-muted-foreground text-xs">{files.length}</span>
+			</div>
+			{files.length ? (
+				<div className="flex flex-col gap-2">
+					{files.map((file) => (
+						<SessionFileRow key={`${file.kind}:${file.path}`} file={file} />
+					))}
+				</div>
+			) : (
+				<p className="rounded-lg border border-dashed px-3 py-4 text-center text-muted-foreground text-xs">
+					暂无{title}文件
+				</p>
+			)}
+		</section>
+	);
+}
+
+function SessionFileRow({ file }: { file: SessionFile }) {
+	return (
+		<div className="flex items-center gap-3 rounded-lg border px-3 py-2">
+			<div className="flex size-8 shrink-0 items-center justify-center rounded-md bg-muted text-muted-foreground">
+				<FileTextIcon className="size-4" />
+			</div>
+			<div className="min-w-0 flex-1">
+				<div className="truncate font-medium text-sm" title={file.name}>
+					{file.name}
+				</div>
+				<div className="text-muted-foreground text-xs">
+					{fileExtension(file.name).toUpperCase() || "FILE"} ·{" "}
+					{formatBytes(file.size)}
+				</div>
+			</div>
+			<a
+				href={file.download_url}
+				className="flex size-8 shrink-0 items-center justify-center rounded-md text-muted-foreground transition-colors hover:bg-muted hover:text-foreground"
+				aria-label={`下载 ${file.name}`}
+				title="下载"
+			>
+				<DownloadIcon className="size-4" />
+			</a>
+			<button
+				type="button"
+				className="flex size-8 shrink-0 items-center justify-center rounded-md text-muted-foreground transition-colors hover:bg-muted hover:text-foreground"
+				aria-label={`针对 ${file.name} 提问`}
+				title="针对文件提问"
+				onClick={() => askAboutFile(file)}
+			>
+				<MessageSquareTextIcon className="size-4" />
+			</button>
+		</div>
+	);
+}
+
+function askAboutFile(file: SessionFile) {
+	window.dispatchEvent(
+		new CustomEvent("claw-composer-insert", {
+			detail: {
+				text: [
+					`请针对这个${file.kind === "input" ? "输入" : "输出"}文件回答我的问题：`,
+					`- 文件名: ${file.name}`,
+					`- 本地路径: ${file.path}`,
+					"请先使用 read_file 工具读取文件内容。",
+				].join("\n"),
+			},
+		}),
+	);
+}
+
+function fileExtension(fileName: string) {
+	const ext = fileName.split(".").at(-1);
+	return ext && ext !== fileName ? ext : "";
+}
+
+function formatBytes(bytes: number) {
+	if (bytes >= 1024 * 1024) return `${(bytes / 1024 / 1024).toFixed(1)} MB`;
+	if (bytes >= 1024) return `${(bytes / 1024).toFixed(1)} KB`;
+	return `${bytes} B`;
+}
+
 function activityMessageId(activityId: string) {
 	return activityId.split(":", 1)[0] ?? activityId;
 }

frontend/app/components/assistant-ui/thread-list.tsx

@@ -331,7 +331,7 @@ function isClawSession(value: unknown): value is ClawSession {
 	);
 }
 
-function toReplayRepository(
+export function toReplayRepository(
 	session: ClawStoredSession,
 	fallbackSessionId: string,
 ): ExportedMessageRepository {

frontend/app/components/assistant-ui/thread.tsx

@@ -22,6 +22,7 @@ import {
 	ChevronRightIcon,
 	CopyIcon,
 	DownloadIcon,
+	FileTextIcon,
 	ListIcon,
 	MoreHorizontalIcon,
 	PencilIcon,
@@ -115,8 +116,9 @@ export const Thread: FC = () => {
 			<ThreadPrimitive.Viewport
 				turnAnchor="top"
 				data-slot="aui_thread-viewport"
-				className="relative flex flex-1 flex-col overflow-x-auto overflow-y-scroll scroll-smooth"
+				className="relative flex flex-1 flex-col overflow-x-auto overflow-y-auto scroll-smooth"
 			>
+				<ChatTopActions />
 				<div className="mx-auto flex w-full max-w-(--thread-max-width) flex-1 flex-col px-4 pt-4">
 					<AuiIf condition={(s) => s.thread.isEmpty}>
 						<ThreadWelcome />
@@ -141,6 +143,52 @@ export const Thread: FC = () => {
 	);
 };
 
+const ChatTopActions: FC = () => {
+	const { openFiles } = useActivityPanel();
+	const latestSessionId = useAuiState((s) =>
+		findLatestMessageMetadataValue(s.thread.messages, "sessionId"),
+	);
+
+	return (
+		<div className="pointer-events-none sticky top-3 z-20 mr-4 flex justify-end">
+			<PopoverPrimitive.Root>
+				<PopoverPrimitive.Trigger asChild>
+					<Button
+						type="button"
+						variant="ghost"
+						size="icon"
+						className="pointer-events-auto size-8 rounded-full bg-background/90 text-muted-foreground shadow-sm backdrop-blur hover:bg-muted hover:text-foreground"
+						aria-label="聊天选项"
+					>
+						<MoreHorizontalIcon className="size-4" />
+					</Button>
+				</PopoverPrimitive.Trigger>
+				<PopoverPrimitive.Portal>
+					<PopoverPrimitive.Content
+						side="bottom"
+						align="end"
+						sideOffset={8}
+						className="z-50 min-w-40 rounded-xl border bg-popover p-1 text-popover-foreground shadow-lg outline-none"
+					>
+						<button
+							type="button"
+							className="flex w-full items-center gap-2 rounded-lg px-3 py-2 text-left text-sm transition-colors hover:bg-muted"
+							onClick={() => {
+								openFiles(
+									typeof latestSessionId === "string" ? latestSessionId : null,
+								);
+							}}
+						>
+							<FileTextIcon className="size-4 text-muted-foreground" />
+							聊天中的文件
+						</button>
+					</PopoverPrimitive.Content>
+				</PopoverPrimitive.Portal>
+			</PopoverPrimitive.Root>
+		</div>
+	);
+};
+
 const ThreadMessage: FC = () => {
 	const role = useAuiState((s) => s.message.role);
 	const isEditing = useAuiState((s) => s.message.composer.isEditing);
@@ -168,7 +216,7 @@ const ThreadWelcome: FC = () => {
 	return (
 		<div className="aui-thread-welcome-root my-auto flex grow flex-col">
 			<div className="aui-thread-welcome-center flex w-full grow flex-col items-center justify-center">
-				<div className="aui-thread-welcome-message flex size-full flex-col justify-center px-4">
+				<div className="aui-thread-welcome-message flex size-full flex-col items-center justify-center px-4 text-center">
 					<h1 className="aui-thread-welcome-message-inner fade-in slide-in-from-bottom-1 animate-in fill-mode-both font-semibold text-2xl duration-200">
 						ZK Data Agent
 					</h1>

frontend/app/components/assistant-ui/threadlist-sidebar.tsx

@@ -1,16 +1,35 @@
+import type { ExportedMessageRepository } from "@assistant-ui/core";
+import { ThreadListPrimitive } from "@assistant-ui/react";
 import {
 	BarChart3Icon,
 	BotIcon,
 	ChevronDownIcon,
+	Clock3Icon,
 	LogOutIcon,
+	PanelLeftOpenIcon,
+	SearchIcon,
+	SquarePenIcon,
 	UserIcon,
 } from "lucide-react";
 import { Popover as PopoverPrimitive } from "radix-ui";
 import type * as React from "react";
 import { useEffect, useState } from "react";
 import type { ClawAccount } from "@/app/claw-account-gate";
-import { ThreadList } from "@/components/assistant-ui/thread-list";
+import { ClawLlmSettings } from "@/app/claw-llm-settings";
+import { ClawThemeSwitcher } from "@/app/claw-theme-switcher";
+import {
+	ThreadList,
+	toReplayRepository,
+} from "@/components/assistant-ui/thread-list";
 import { Button } from "@/components/ui/button";
+import {
+	Dialog,
+	DialogContent,
+	DialogDescription,
+	DialogHeader,
+	DialogTitle,
+} from "@/components/ui/dialog";
+import { Input } from "@/components/ui/input";
 import {
 	Sidebar,
 	SidebarContent,
@@ -20,7 +39,10 @@ import {
 	SidebarMenuButton,
 	SidebarMenuItem,
 	SidebarRail,
+	SidebarTrigger,
+	useSidebar,
 } from "@/components/ui/sidebar";
+import { useClawSessionReplay } from "@/lib/claw-session-replay";
 
 type ThreadListSidebarProps = React.ComponentProps<typeof Sidebar> & {
 	account: ClawAccount;
@@ -38,6 +60,7 @@ type ClawSessionSummary = {
 	turns: number;
 	tool_calls: number;
 	modified_at: number;
+	preview?: string;
 	model?: string;
 	usage?: UsageSummary;
 };
@@ -50,57 +73,337 @@ type UsageSummary = {
 
 type ClawStoredSession = {
 	session_id: string;
+	messages?: unknown[];
 	usage?: UsageSummary;
 	tool_calls?: number;
 	turns?: number;
 	model?: string;
 };
 
+type ReplaySessionPayload = Parameters<typeof toReplayRepository>[0];
+
+type SidebarSession = ClawSessionSummary & {
+	preview: string;
+};
+
 export function ThreadListSidebar({
 	account,
 	onLogout,
 	...props
 }: ThreadListSidebarProps) {
 	return (
-		<Sidebar {...props}>
+		<Sidebar collapsible="icon" {...props}>
-			<SidebarHeader className="aui-sidebar-header mb-2 border-b">
+			<div className="flex h-full flex-col group-data-[collapsible=icon]:hidden">
-				<div className="aui-sidebar-header-content flex items-center justify-between">
+				<SidebarHeader className="aui-sidebar-header mb-2 border-b">
-					<SidebarMenu>
+					<div className="aui-sidebar-header-content flex items-center justify-between gap-2">
-						<SidebarMenuItem>
+						<SidebarMenu>
-							<SidebarMenuButton size="lg">
+							<SidebarMenuItem>
-								<div className="aui-sidebar-header-icon-wrapper flex aspect-square size-8 items-center justify-center rounded-lg bg-sidebar-primary text-sidebar-primary-foreground">
+								<SidebarMenuButton size="lg">
-									<BotIcon className="aui-sidebar-header-icon size-4" />
+									<div className="aui-sidebar-header-icon-wrapper flex aspect-square size-8 items-center justify-center rounded-lg bg-sidebar-primary text-sidebar-primary-foreground">
-								</div>
+										<BotIcon className="aui-sidebar-header-icon size-4" />
-								<div className="aui-sidebar-header-heading mr-6 flex flex-col gap-0.5 leading-none">
+									</div>
-									<span className="aui-sidebar-header-title font-semibold">
+									<div className="aui-sidebar-header-heading mr-6 flex flex-col gap-0.5 leading-none">
-										ZK Data Agent
+										<span className="aui-sidebar-header-title font-semibold">
-									</span>
+											ZK Data Agent
-									<span className="text-muted-foreground text-xs">
+										</span>
-										中控数据开发平台
+										<span className="text-muted-foreground text-xs">
-									</span>
+											中控数据开发平台
-								</div>
+										</span>
-							</SidebarMenuButton>
+									</div>
-						</SidebarMenuItem>
+								</SidebarMenuButton>
-					</SidebarMenu>
+							</SidebarMenuItem>
-				</div>
+						</SidebarMenu>
-			</SidebarHeader>
+						<SidebarTrigger className="size-8 shrink-0" />
-			<SidebarContent className="aui-sidebar-content px-2">
+					</div>
-				<ThreadList />
+				</SidebarHeader>
-			</SidebarContent>
+				<SidebarContent className="aui-sidebar-content px-2">
-			<SidebarRail />
+					<ThreadList />
-			<SidebarFooter className="aui-sidebar-footer border-t">
+				</SidebarContent>
-				<AccountMenu account={account} onLogout={onLogout} />
+				<SidebarRail />
-			</SidebarFooter>
+				<SidebarFooter className="aui-sidebar-footer border-t">
+					<AccountMenu account={account} onLogout={onLogout} />
+				</SidebarFooter>
+			</div>
+			<div className="hidden h-full group-data-[collapsible=icon]:flex">
+				<CollapsedSidebarRail account={account} onLogout={onLogout} />
+			</div>
 		</Sidebar>
 	);
 }
 
+function CollapsedSidebarRail({
+	account,
+	onLogout,
+}: {
+	account: ClawAccount;
+	onLogout: () => void;
+}) {
+	const { setOpen } = useSidebar();
+
+	return (
+		<div className="flex h-full w-full flex-col items-center border-r bg-sidebar py-3 text-sidebar-foreground">
+			<button
+				type="button"
+				className="group mb-5 flex size-9 items-center justify-center rounded-lg text-sidebar-foreground transition-colors hover:bg-sidebar-accent"
+				aria-label="展开侧栏"
+				title="展开侧栏"
+				onClick={() => setOpen(true)}
+			>
+				<BotIcon className="size-5 group-hover:hidden" />
+				<PanelLeftOpenIcon className="hidden size-5 group-hover:block" />
+			</button>
+
+			<div className="flex flex-col items-center gap-3">
+				<div
+					onClickCapture={() => {
+						window.localStorage.removeItem("claw.activeSessionId");
+						window.dispatchEvent(new Event("claw-active-session-cleared"));
+					}}
+				>
+					<ThreadListPrimitive.New asChild>
+						<CollapsedIconButton label="新任务">
+							<SquarePenIcon className="size-4" />
+						</CollapsedIconButton>
+					</ThreadListPrimitive.New>
+				</div>
+				<CollapsedSessionSearch />
+				<CollapsedRecentSessions />
+			</div>
+
+			<div className="mt-auto">
+				<AccountMenu account={account} onLogout={onLogout} compact />
+			</div>
+		</div>
+	);
+}
+
+function CollapsedIconButton({
+	label,
+	children,
+	onClick,
+}: {
+	label: string;
+	children: React.ReactNode;
+	onClick?: () => void;
+}) {
+	return (
+		<button
+			type="button"
+			className="flex size-8 items-center justify-center rounded-lg text-sidebar-foreground transition-colors hover:bg-sidebar-accent"
+			aria-label={label}
+			title={label}
+			onClick={onClick}
+		>
+			{children}
+		</button>
+	);
+}
+
+function CollapsedSessionSearch() {
+	const { replaySession } = useClawSessionReplay();
+	const [open, setOpen] = useState(false);
+	const [query, setQuery] = useState("");
+	const { sessions, loadingSessionId, openSession } = useSidebarSessions(open);
+	const filteredSessions = sessions.filter((session) => {
+		const keyword = query.trim().toLowerCase();
+		if (!keyword) return true;
+		return (
+			session.preview.toLowerCase().includes(keyword) ||
+			session.session_id.toLowerCase().includes(keyword)
+		);
+	});
+
+	return (
+		<>
+			<CollapsedIconButton label="搜索任务" onClick={() => setOpen(true)}>
+				<SearchIcon className="size-4" />
+			</CollapsedIconButton>
+			<Dialog open={open} onOpenChange={setOpen}>
+				<DialogContent className="top-[35%] max-w-lg translate-y-[-35%] gap-3 p-4">
+					<DialogHeader>
+						<DialogTitle>搜索任务</DialogTitle>
+						<DialogDescription>
+							按任务标题或会话 ID 搜索，点击后恢复会话。
+						</DialogDescription>
+					</DialogHeader>
+					<Input
+						autoFocus
+						value={query}
+						placeholder="输入关键词..."
+						onChange={(event) => setQuery(event.target.value)}
+					/>
+					<div className="max-h-80 overflow-y-auto">
+						{filteredSessions.length ? (
+							<div className="flex flex-col gap-1">
+								{filteredSessions.map((session) => (
+									<SessionResultButton
+										key={session.session_id}
+										session={session}
+										loading={loadingSessionId === session.session_id}
+										onClick={async () => {
+											await openSession(session.session_id, replaySession);
+											setOpen(false);
+										}}
+									/>
+								))}
+							</div>
+						) : (
+							<p className="py-8 text-center text-muted-foreground text-sm">
+								没有匹配的任务。
+							</p>
+						)}
+					</div>
+				</DialogContent>
+			</Dialog>
+		</>
+	);
+}
+
+function CollapsedRecentSessions() {
+	const { replaySession } = useClawSessionReplay();
+	const [open, setOpen] = useState(false);
+	const { sessions, loadingSessionId, openSession } = useSidebarSessions(open);
+
+	return (
+		<PopoverPrimitive.Root open={open} onOpenChange={setOpen}>
+			<PopoverPrimitive.Trigger asChild>
+				<CollapsedIconButton label="最近任务">
+					<Clock3Icon className="size-4" />
+				</CollapsedIconButton>
+			</PopoverPrimitive.Trigger>
+			<PopoverPrimitive.Portal>
+				<PopoverPrimitive.Content
+					side="right"
+					align="start"
+					sideOffset={10}
+					className="z-50 w-72 rounded-xl border bg-popover p-2 text-popover-foreground shadow-lg outline-none"
+				>
+					<div className="px-2 py-1.5 font-medium text-sm">最近任务</div>
+					{sessions.length ? (
+						<div className="flex max-h-96 flex-col gap-1 overflow-y-auto">
+							{sessions.map((session) => (
+								<SessionResultButton
+									key={session.session_id}
+									session={session}
+									loading={loadingSessionId === session.session_id}
+									onClick={async () => {
+										await openSession(session.session_id, replaySession);
+										setOpen(false);
+									}}
+								/>
+							))}
+						</div>
+					) : (
+						<p className="px-2 py-6 text-center text-muted-foreground text-sm">
+							暂无最近任务。
+						</p>
+					)}
+				</PopoverPrimitive.Content>
+			</PopoverPrimitive.Portal>
+		</PopoverPrimitive.Root>
+	);
+}
+
+function SessionResultButton({
+	session,
+	loading,
+	onClick,
+}: {
+	session: SidebarSession;
+	loading: boolean;
+	onClick: () => void;
+}) {
+	return (
+		<button
+			type="button"
+			className="flex w-full flex-col rounded-lg px-2 py-2 text-left transition-colors hover:bg-muted"
+			onClick={onClick}
+		>
+			<span className="truncate font-medium text-sm">
+				{loading ? "回放中..." : session.preview || session.session_id}
+			</span>
+			<span className="mt-0.5 text-muted-foreground text-xs">
+				{session.turns ?? 0} 轮 · {session.tool_calls ?? 0} 次工具
+			</span>
+		</button>
+	);
+}
+
+function useSidebarSessions(open: boolean) {
+	const [sessions, setSessions] = useState<SidebarSession[]>([]);
+	const [loadingSessionId, setLoadingSessionId] = useState<string | null>(null);
+
+	useEffect(() => {
+		if (!open) return;
+		let cancelled = false;
+		fetch("/api/claw/sessions", { cache: "no-store" })
+			.then((res) => (res.ok ? res.json() : []))
+			.then((payload) => {
+				if (cancelled || !Array.isArray(payload)) return;
+				setSessions(dedupeSidebarSessions(payload).slice(0, 12));
+			})
+			.catch(() => {
+				if (!cancelled) setSessions([]);
+			});
+		return () => {
+			cancelled = true;
+		};
+	}, [open]);
+
+	async function openSession(
+		sessionId: string,
+		replaySession: (
+			sessionId: string,
+			repository: ExportedMessageRepository,
+		) => void,
+	) {
+		window.localStorage.setItem("claw.activeSessionId", sessionId);
+		setLoadingSessionId(sessionId);
+		try {
+			const response = await fetch(`/api/claw/sessions/${sessionId}`, {
+				cache: "no-store",
+			});
+			if (!response.ok) return;
+			const payload = (await response.json()) as ReplaySessionPayload;
+			replaySession(sessionId, toReplayRepository(payload, sessionId));
+		} finally {
+			setLoadingSessionId(null);
+		}
+	}
+
+	return { sessions, loadingSessionId, openSession };
+}
+
+function dedupeSidebarSessions(payload: unknown[]) {
+	const byId = new Map<string, SidebarSession>();
+	for (const item of payload) {
+		if (!isSidebarSession(item)) continue;
+		const previous = byId.get(item.session_id);
+		if (!previous || item.modified_at >= previous.modified_at) {
+			byId.set(item.session_id, item);
+		}
+	}
+	return [...byId.values()].sort((a, b) => b.modified_at - a.modified_at);
+}
+
+function isSidebarSession(value: unknown): value is SidebarSession {
+	if (!value || typeof value !== "object") return false;
+	const item = value as Partial<SidebarSession>;
+	return (
+		typeof item.session_id === "string" &&
+		typeof item.modified_at === "number" &&
+		typeof item.preview === "string"
+	);
+}
+
 function AccountMenu({
 	account,
 	onLogout,
+	compact = false,
 }: {
 	account: ClawAccount;
 	onLogout: () => void;
+	compact?: boolean;
 }) {
 	const [open, setOpen] = useState(false);
 	const [state, setState] = useState<ClawState | null>(null);
@@ -165,20 +468,33 @@ function AccountMenu({
 	return (
 		<PopoverPrimitive.Root open={open} onOpenChange={setOpen}>
 			<PopoverPrimitive.Trigger asChild>
-				<button
+				{compact ? (
-					type="button"
+					<button
-					className="flex w-full items-center gap-2 rounded-lg px-2 py-2 text-left transition-colors hover:bg-sidebar-accent"
+						type="button"
-				>
+						className="flex size-8 items-center justify-center rounded-full bg-sidebar-primary text-sidebar-primary-foreground transition-colors hover:bg-sidebar-accent hover:text-sidebar-accent-foreground"
-					<div className="flex size-8 shrink-0 items-center justify-center rounded-lg bg-sidebar-primary text-sidebar-primary-foreground">
+						aria-label="账号与统计"
-						<UserIcon className="size-4" />
+						title={account.username}
-					</div>
+					>
-					<div className="min-w-0 flex-1">
+						<span className="font-medium text-xs">
-						<div className="truncate font-medium text-sm">
+							{account.username.slice(0, 2).toUpperCase()}
-							{account.username}
+						</span>
+					</button>
+				) : (
+					<button
+						type="button"
+						className="flex w-full items-center gap-2 rounded-lg px-2 py-2 text-left transition-colors hover:bg-sidebar-accent"
+					>
+						<div className="flex size-8 shrink-0 items-center justify-center rounded-lg bg-sidebar-primary text-sidebar-primary-foreground">
+							<UserIcon className="size-4" />
 						</div>
-						<div className="text-muted-foreground text-xs">账号与统计</div>
+						<div className="min-w-0 flex-1">
-					</div>
+							<div className="truncate font-medium text-sm">
-				</button>
+								{account.username}
+							</div>
+							<div className="text-muted-foreground text-xs">账号与统计</div>
+						</div>
+					</button>
+				)}
 			</PopoverPrimitive.Trigger>
 			<PopoverPrimitive.Portal>
 				<PopoverPrimitive.Content
@@ -191,12 +507,21 @@ function AccountMenu({
 						<div className="flex size-9 items-center justify-center rounded-lg bg-primary text-primary-foreground">
 							<UserIcon className="size-4" />
 						</div>
-						<div className="min-w-0">
+						<div className="min-w-0 flex-1">
 							<div className="truncate font-medium">{account.username}</div>
 							<div className="truncate text-muted-foreground text-xs">
 								{state?.model ?? "模型配置读取中"}
 							</div>
 						</div>
+						<Button
+							variant="ghost"
+							size="sm"
+							className="h-8 shrink-0 gap-1.5 px-2 text-muted-foreground"
+							onClick={logout}
+						>
+							<LogOutIcon className="size-3.5" />
+							退出
+						</Button>
 					</div>
 					<div className="grid grid-cols-3 gap-2">
 						<AccountStat label="会话" value={sessions.length} />
@@ -270,14 +595,15 @@ function AccountMenu({
 							<div className="text-muted-foreground">暂无可统计会话</div>
 						) : null}
 					</div>
-					<Button
+					<div className="mt-3 flex items-center justify-between gap-2 border-t pt-3">
-						variant="ghost"
+						<span className="text-muted-foreground text-xs">
-						className="mt-3 w-full justify-start gap-2 text-muted-foreground"
+							界面与模型配置
-						onClick={logout}
+						</span>
-					>
+						<div className="flex items-center gap-1">
-						<LogOutIcon className="size-4" />
+							<ClawThemeSwitcher />
-						退出登录
+							<ClawLlmSettings />
-					</Button>
+						</div>
+					</div>
 				</PopoverPrimitive.Content>
 			</PopoverPrimitive.Portal>
 		</PopoverPrimitive.Root>