Fix active session replay state

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

@@ -37,6 +37,10 @@ import {
 	CollapsibleContent,
 	CollapsibleTrigger,
 } from "@/components/ui/collapsible";
+import {
+	readActiveSessionId,
+	writeActiveSessionId,
+} from "@/lib/claw-active-session";
 import { cn } from "@/lib/utils";
 
 type ActivityContextValue = {
@@ -71,12 +75,7 @@ export function ActivityProvider({ children }: { children: ReactNode }) {
 	}, []);
 	const openFiles = useCallback((nextSessionId?: string | null) => {
 		setMode("files");
-		setSessionId(
-			nextSessionId ??
-				(typeof window !== "undefined"
-					? window.localStorage.getItem("claw.activeSessionId")
-					: null),
-		);
+		setSessionId(nextSessionId ?? readActiveSessionId());
 		setFilesRefreshToken((value) => value + 1);
 		setOpen(true);
 	}, []);
@@ -257,7 +256,7 @@ function SessionFilesPanel({
 		let cancelled = false;
 		async function loadFiles() {
 			const activeSessionId = normalizeSessionId(
-				sessionId ?? window.localStorage.getItem("claw.activeSessionId"),
+				sessionId ?? readActiveSessionId(),
 			);
 			setStatus("正在读取聊天中的文件...");
 			try {
@@ -285,10 +284,7 @@ function SessionFilesPanel({
 					return;
 				}
 				if (nextPayload.session_id) {
-					window.localStorage.setItem(
-						"claw.activeSessionId",
-						nextPayload.session_id,
-					);
+					writeActiveSessionId(nextPayload.session_id);
 				}
 				setPayload(nextPayload);
 				setStatus("");