feat: auto-redirect to Pro shell when proInterface is on

app/(main)/[locale]/layout.tsx

@@ -6,6 +6,7 @@ import { EmbeddedBridgeProvider } from "@/components/providers/embedded-bridge-p
 import { RateLimitToastProvider } from "@/components/providers/rate-limit-toast-provider";
 import { TourProvider } from "@/components/tour/tour-provider";
 import { ProtocolLaunchHandlerProvider } from "@/components/protocol/protocol-launch-handler-provider";
+import { ProInterfaceRedirect } from "@/components/pro/pro-interface-redirect";
 import { PluginDialogHost } from "@/components/plugins/plugin-dialog-host";
 import { PluginConsentDialog } from "@/components/plugins/plugin-consent-dialog";
 import { locales } from "@/i18n/routing";
@@ -36,6 +37,7 @@ export default async function LocaleLayout({
             <EmbeddedBridgeProvider>
               <TourProvider>
                 <ProtocolLaunchHandlerProvider>
+                  <ProInterfaceRedirect />
                   {children}
                   <PluginDialogHost />
                   <PluginConsentDialog />

app/(main)/[locale]/pro/page.tsx

@@ -9,6 +9,7 @@ import { InlineAppView } from "@/components/layout/inline-app-view";
 import { useSidebarApps } from "@/hooks/use-sidebar-apps";
 import { useAuthStore, redirectToLogin } from "@/stores/auth-store";
 import { useEmailStore } from "@/stores/email-store";
+import { useSettingsStore } from "@/stores/settings-store";
 import { useDeviceDetection } from "@/hooks/use-media-query";
 import { EmbeddedContext } from "@/hooks/use-is-embedded";
 import { PaneSizeContext } from "@/hooks/use-pane-size";
@@ -128,6 +129,7 @@ export default function ProHome() {
   const authLoading = useAuthStore((s) => s.isLoading);
   const quota = useEmailStore((s) => s.quota);
   const isPushConnected = useEmailStore((s) => s.isPushConnected);
+  const proInterface = useSettingsStore((s) => s.proInterface);
 
   const tabs = useProTabStore((s) => s.tabs);
   const activeMainTabId = useProTabStore((s) => s.activeTabId);
@@ -165,10 +167,14 @@ export default function ProHome() {
   }, [initialCheckDone, isAuthenticated, authLoading]);
 
   useEffect(() => {
-    if (initialCheckDone && (isMobile || isTablet) && typeof window !== "undefined") {
+    if (!initialCheckDone || typeof window === "undefined") return;
+    // Pro is desktop-only, and only used when the user has explicitly
+    // enabled it. If either precondition stops holding, hand the user back
+    // to the standard shell.
+    if (isMobile || isTablet || !proInterface) {
       window.location.replace("/");
     }
-  }, [initialCheckDone, isMobile, isTablet]);
+  }, [initialCheckDone, isMobile, isTablet, proInterface]);
 
   const mainTabs = useMemo(() => tabs.filter((t) => t.paneId === 'main'), [tabs]);
   const splitTabs = useMemo(() => tabs.filter((t) => t.paneId === 'split'), [tabs]);

components/pro/pro-interface-redirect.tsx

@@ -0,0 +1,38 @@
+"use client";
+
+import { useEffect } from "react";
+import { usePathname, useRouter } from "@/i18n/navigation";
+import { useSettingsStore } from "@/stores/settings-store";
+import { useIsDesktop } from "@/hooks/use-media-query";
+import { useProTabStore, type ProTabKind } from "@/stores/pro-tab-store";
+
+const STANDARD_PATH_TO_TAB: Record<string, Exclude<ProTabKind, 'compose' | 'email'>> = {
+  '/': 'mail',
+  '/calendar': 'calendar',
+  '/contacts': 'contacts',
+  '/files': 'files',
+  '/settings': 'settings',
+};
+
+/**
+ * When the Pro interface is enabled, the standard mail/calendar/contacts/
+ * files/settings routes are taken over by the Pro shell — the user shouldn't
+ * have to click "Open" in settings to land there. Mobile/tablet keeps the
+ * standard layout because Pro is desktop-only (see pro/page.tsx).
+ */
+export function ProInterfaceRedirect() {
+  const router = useRouter();
+  const pathname = usePathname();
+  const proInterface = useSettingsStore((s) => s.proInterface);
+  const isDesktop = useIsDesktop();
+
+  useEffect(() => {
+    if (!proInterface || !isDesktop) return;
+    const tabKind = STANDARD_PATH_TO_TAB[pathname];
+    if (!tabKind) return;
+    useProTabStore.getState().openTab(tabKind);
+    router.replace('/pro');
+  }, [proInterface, isDesktop, pathname, router]);
+
+  return null;
+}

components/settings/layout-settings.tsx

@@ -1,13 +1,11 @@
 "use client";
 
 import { useTranslations } from 'next-intl';
-import { Link } from '@/i18n/navigation';
 import { useSettingsStore, type ToolbarPosition, type MailLayout } from '@/stores/settings-store';
 import { SettingsSection, SettingItem, RadioGroup, ToggleSwitch } from './settings-section';
 import { cn } from '@/lib/utils';
 import { usePolicyStore } from '@/stores/policy-store';
 import { useAccountStore } from '@/stores/account-store';
-import { useMediaQuery } from '@/hooks/use-media-query';
 
 const MAIL_LAYOUT_PREVIEW_ROWS = [
   { sender: 'Alice', subject: 'Quarterly roadmap', preview: 'The draft is ready for review.', selected: false },
@@ -120,7 +118,6 @@ export function LayoutSettings() {
   const { toolbarPosition, showToolbarLabels, hideAccountSwitcher, showRailAccountList, enableUnifiedMailbox, colorfulSidebarIcons, mailLayout, proInterface, updateSetting } = useSettingsStore();
   const { isSettingLocked, isSettingHidden } = usePolicyStore();
   const accounts = useAccountStore(s => s.accounts);
-  const isDesktop = useMediaQuery('(min-width: 1024px)');
 
   return (
     <SettingsSection title={t('title')} description={t('description')}>
@@ -193,20 +190,10 @@ export function LayoutSettings() {
       )}
 
       <SettingItem label={t('pro_interface.label')} description={t('pro_interface.description')}>
-        <div className="flex items-center gap-3">
+        <ToggleSwitch
-          {proInterface && isDesktop && (
+          checked={proInterface}
-            <Link
+          onChange={(v) => updateSetting('proInterface', v)}
-              href="/pro"
+        />
-              className="text-sm font-medium text-primary hover:underline"
-            >
-              {t('pro_interface.open_label')}
-            </Link>
-          )}
-          <ToggleSwitch
-            checked={proInterface}
-            onChange={(v) => updateSetting('proInterface', v)}
-          />
-        </div>
       </SettingItem>
     </SettingsSection>
   );