Sync session URL when opening chats

frontend/app/app/assistant.tsx

@@ -28,6 +28,7 @@ import {
 	readPendingWorkspaceSessionId,
 	writeActiveSessionId,
 } from "@/lib/claw-active-session";
+import { pushSessionUrl } from "@/lib/claw-session-url";
 import { ClawSessionReplayProvider } from "@/lib/claw-session-replay";
 import { ClawAccountGate, useClawAccount } from "./claw-account-gate";
 
@@ -112,6 +113,7 @@ export const Assistant = ({ initialSessionId }: AssistantProps = {}) => {
 					targetSessionId,
 					toReplayRepository(payload, targetSessionId, runStatus),
 				);
+				pushSessionUrl(targetSessionId);
 			} catch {
 				if (!cancelled) {
 					loadedInitialSessionRef.current = null;

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

@@ -24,6 +24,7 @@ import {
 	readActiveSessionId,
 	writeActiveSessionId,
 } from "@/lib/claw-active-session";
+import { pushHomeUrl, pushSessionUrl } from "@/lib/claw-session-url";
 import { useClawSessionReplay } from "@/lib/claw-session-replay";
 
 type ClawSession = {
@@ -121,6 +122,7 @@ const ThreadListNew: FC = () => {
 		<div
 			onClickCapture={() => {
 				clearActiveSessionId();
+				pushHomeUrl();
 				window.dispatchEvent(new Event("claw-active-session-cleared"));
 			}}
 		>
@@ -262,6 +264,7 @@ const ClawSessionList: FC = () => {
 									onClick={async () => {
 										setOpenMenuSessionId(null);
 										writeActiveSessionId(session.session_id);
+										pushSessionUrl(session.session_id);
 										setActiveSessionId(session.session_id);
 										setLoadingSessionId(session.session_id);
 										try {

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

@@ -51,6 +51,7 @@ import {
 	writeActiveSessionId,
 } from "@/lib/claw-active-session";
 import { useClawSessionReplay } from "@/lib/claw-session-replay";
+import { pushHomeUrl, pushSessionUrl } from "@/lib/claw-session-url";
 
 type ThreadListSidebarProps = React.ComponentProps<typeof Sidebar> & {
 	account: ClawAccount;
@@ -201,6 +202,7 @@ function CollapsedSidebarRail({
 				<div
 					onClickCapture={() => {
 						clearActiveSessionId();
+						pushHomeUrl();
 						window.dispatchEvent(new Event("claw-active-session-cleared"));
 					}}
 				>
@@ -404,6 +406,7 @@ function useSidebarSessions(open: boolean) {
 		const cleanSessionId = normalizeSessionId(sessionId);
 		if (!cleanSessionId) return;
 		writeActiveSessionId(cleanSessionId);
+		pushSessionUrl(cleanSessionId);
 		setLoadingSessionId(sessionId);
 		try {
 			const response = await fetch(`/api/claw/sessions/${cleanSessionId}`, {

frontend/app/lib/claw-session-url.ts

@@ -0,0 +1,14 @@
+"use client";
+
+export function pushSessionUrl(sessionId: string) {
+	if (typeof window === "undefined") return;
+	const target = `/session/${encodeURIComponent(sessionId)}`;
+	if (window.location.pathname === target) return;
+	window.history.pushState(null, "", target);
+}
+
+export function pushHomeUrl() {
+	if (typeof window === "undefined") return;
+	if (window.location.pathname === "/") return;
+	window.history.pushState(null, "", "/");
+}