feat(core): add an entry for admin panel (#10813)

![CleanShot 2025-03-13 at 13 02 25@2x](https://github.com/user-attachments/assets/82f50a5b-f079-4c64-a3fa-6554735bea82)

packages/frontend/core/src/components/root-app-sidebar/user-info.tsx

@@ -14,7 +14,7 @@ import {
 } from '@affine/core/modules/dialogs';
 import { useI18n } from '@affine/i18n';
 import { track } from '@affine/track';
-import { AccountIcon, SignOutIcon } from '@blocksuite/icons/rc';
+import { AccountIcon, AdminIcon, SignOutIcon } from '@blocksuite/icons/rc';
 import { useLiveData, useService } from '@toeverything/infra';
 import { cssVar } from '@toeverything/theme';
 import { assignInlineVars } from '@vanilla-extract/dynamic';
@@ -27,6 +27,7 @@ import {
   ServerService,
   SubscriptionService,
   UserCopilotQuotaService,
+  UserFeatureService,
   UserQuotaService,
 } from '../../modules/cloud';
 import { UserPlanButton } from '../affine/auth/user-plan-button';
@@ -80,6 +81,9 @@ const UnauthorizedUserInfo = () => {
 const AccountMenu = () => {
   const workspaceDialogService = useService(WorkspaceDialogService);
   const openSignOutModal = useSignOut();
+  const serverService = useService(ServerService);
+  const userFeatureService = useService(UserFeatureService);
+  const isAdmin = useLiveData(userFeatureService.userFeature.isAdmin$);
 
   const onOpenAccountSetting = useCallback(() => {
     track.$.navigationPanel.profileAndBadge.openSettings({ to: 'account' });
@@ -88,8 +92,16 @@ const AccountMenu = () => {
     });
   }, [workspaceDialogService]);
 
+  const onOpenAdminPanel = useCallback(() => {
+    window.open(`${serverService.server.baseUrl}/admin`, '_blank');
+  }, [serverService.server.baseUrl]);
+
   const t = useI18n();
 
+  useEffect(() => {
+    userFeatureService.userFeature.revalidate();
+  }, [userFeatureService]);
+
   return (
     <>
       <MenuItem
@@ -99,6 +111,15 @@ const AccountMenu = () => {
       >
         {t['com.affine.workspace.cloud.account.settings']()}
       </MenuItem>
+      {isAdmin ? (
+        <MenuItem
+          prefixIcon={<AdminIcon />}
+          data-testid="workspace-modal-account-admin-option"
+          onClick={onOpenAdminPanel}
+        >
+          {t['com.affine.workspace.cloud.account.admin']()}
+        </MenuItem>
+      ) : null}
       <MenuItem
         prefixIcon={<SignOutIcon />}
         data-testid="workspace-modal-sign-out-option"