fix(notifications): Review link opens the Access requests tab, not the last-used one

The access-requests notice's Review link navigated to the Users page but the
persisted tab (often Demo) loaded instead. Pre-select the access tab before
navigating (focusAccessRequestsTab writes the persisted-tab key, which the page
reads on its fresh mount).

frontend/src/App.tsx

@@ -32,7 +32,7 @@ import Playlists from "./components/Playlists";
 import Stats from "./components/Stats";
 import Scheduler from "./components/Scheduler";
 import ConfigPanel from "./components/ConfigPanel";
-import AdminUsers from "./components/AdminUsers";
+import AdminUsers, { focusAccessRequestsTab } from "./components/AdminUsers";
 import SettingsPanel from "./components/SettingsPanel";
 import NotificationsPanel from "./components/NotificationsPanel";
 import Messages from "./components/Messages";
@@ -372,7 +372,13 @@ export default function App() {
           // Durable inbox link (survives reload, unlike a live action callback); the toast also
           // gets a click via the action.
           meta: { kind: "access-requests" },
-          action: { label: t("common.accessRequestsReview"), onClick: () => setPage("users") },
+          action: {
+            label: t("common.accessRequestsReview"),
+            onClick: () => {
+              focusAccessRequestsTab();
+              setPage("users");
+            },
+          },
         });
       }
     }

frontend/src/components/AdminUsers.tsx

@@ -11,9 +11,19 @@ import Tabs, { usePersistedTab } from "./Tabs";
 // Admin-only user & access management: roles, access requests (the Invite whitelist), and the
 // demo whitelist + reset. Each section is its own tab (persisted across reloads); the Access tab
 // carries a badge with the count of pending requests so it's visible without switching to it.
+// The persisted-tab storage key + the access-requests tab id, exported so a notification's
+// "Review" link can pre-select that tab before navigating here (usePersistedTab reads the key
+// on mount, and this page mounts fresh on navigation).
+export const ADMIN_USERS_TAB_KEY = "siftlode.adminUsersTab";
+export const ADMIN_USERS_ACCESS_TAB = "access";
+
+export function focusAccessRequestsTab(): void {
+  localStorage.setItem(ADMIN_USERS_TAB_KEY, ADMIN_USERS_ACCESS_TAB);
+}
+
 export default function AdminUsers({ me }: { me: Me }) {
   const { t } = useTranslation();
-  const [tab, setTab] = usePersistedTab("siftlode.adminUsersTab", "roles");
+  const [tab, setTab] = usePersistedTab(ADMIN_USERS_TAB_KEY, "roles");
   const tabs = [
     { id: "roles", label: t("users.tabs.roles") },
     { id: "access", label: t("users.tabs.access"), badge: me.pending_invites },

frontend/src/components/NotificationsPanel.tsx

@@ -4,6 +4,7 @@ import { useMutation, useQueryClient } from "@tanstack/react-query";
 import { Activity, Bell, Check, CheckCheck, ExternalLink, Eye, RotateCcw, Search, Trash2, Tv, UserPlus, X } from "lucide-react";
 import { api, type AppNotification, type FeedFilters } from "../lib/api";
 import { useLiveQuery } from "../lib/useLiveQuery";
+import { focusAccessRequestsTab } from "./AdminUsers";
 import {
   clearAll as clearClient,
   dismiss as dismissClient,
@@ -190,7 +191,10 @@ export default function NotificationsPanel({
                     onFind={locate}
                     onRevert={revertState}
                     onFocusChannel={onFocusChannel}
-                    onReviewAccess={() => setPage("users")}
+                    onReviewAccess={() => {
+                      focusAccessRequestsTab();
+                      setPage("users");
+                    }}
                     onRemove={() => removeClient(n.id)}
                   />
                 ))}