Implement billing status notification and enhance user management integration

- Added `NotifyBillingStatusChangedAsync` method to `IRealtimeNotifier` for notifying clients about changes in billing status.
- Updated `BillingConfigResumer` to call the new notification method after modifying billing configurations, ensuring users receive real-time updates.
- Enhanced `ListUsersQueryHandler` to include a `BillingPendingReview` property in `UserSummaryDto`, indicating if a user has a pending payment request awaiting confirmation.
- Refactored various command handlers to utilize `AdvisoryLock` for managing concurrent requests, preventing race conditions in billing operations.
- Updated tests to cover new notification behaviors and ensure proper functionality in billing status management.

frontend/src/routes/admin/users.tsx

@@ -8,7 +8,6 @@ import { Badge } from '@/shared/ui/badge'
 import { PaidUntilBadge } from '@/features/billing/PaidUntilBadge'
 import { listUsers } from '@/features/admin/users/api'
 import { UserManageDialog } from '@/features/admin/users/UserManageDialog'
-import type { UserSummaryDto } from '@/shared/api/types'
 
 export const Route = createFileRoute('/admin/users')({ component: AdminUsersPage })
 
@@ -18,12 +17,17 @@ function AdminUsersPage() {
   const { t } = useTranslation()
   const [search, setSearch] = useState('')
   const [page, setPage] = useState(1)
-  const [managing, setManaging] = useState<UserSummaryDto | null>(null)
+  // Id, не сам объект — иначе диалог держит "замороженный" снимок пользователя и не видит
+  // изменения, сделанные им же самим (гифт/блок/смена роли инвалидируют этот запрос, но проп
+  // диалога от этого не обновится, если хранить готовый объект). Ищем свежую версию в live-данных
+  // запроса на каждый рендер.
+  const [managingId, setManagingId] = useState<string | null>(null)
 
   const { data, isLoading, isError, refetch } = useQuery({
     queryKey: ['admin-users', page, search],
     queryFn: () => listUsers(page, PAGE_SIZE, search || undefined),
   })
+  const managingUser = managingId ? (data?.items.find((u) => u.id === managingId) ?? null) : null
 
   return (
     <div className="flex flex-col gap-4">
@@ -77,13 +81,17 @@ function AdminUsersPage() {
                   </td>
                   <td className="py-2">
                     {user.billingEnabled ? (
-                      <PaidUntilBadge paidUntil={user.billingPaidUntil} showDate />
+                      <PaidUntilBadge
+                        paidUntil={user.billingPaidUntil}
+                        pendingReview={user.billingPendingReview}
+                        showDate
+                      />
                     ) : (
                       <span className="text-muted-foreground">—</span>
                     )}
                   </td>
                   <td className="py-2 text-right">
-                    <Button size="sm" variant="outline" onClick={() => setManaging(user)}>
+                    <Button size="sm" variant="outline" onClick={() => setManagingId(user.id)}>
                       {t('admin.users.manage')}
                     </Button>
                   </td>
@@ -109,7 +117,9 @@ function AdminUsersPage() {
         </>
       )}
 
-      {managing && <UserManageDialog user={managing} open={!!managing} onOpenChange={(open) => !open && setManaging(null)} />}
+      {managingUser && (
+        <UserManageDialog user={managingUser} open={!!managingUser} onOpenChange={(open) => !open && setManagingId(null)} />
+      )}
     </div>
   )
 }