Enhance user management and billing integration

- Updated the `UserSummaryDto` to include `BillingEnabled` and `BillingPaidUntil` properties, allowing for better tracking of user billing status.
- Refactored the `IdentityService` to populate the new billing fields when retrieving user summaries.
- Modified the dashboard and admin user management components to display billing information, including a link to the billing page and a badge for billing status.
- Added internationalization support for new billing-related labels in both English and Russian.
- Ensured frontend components reflect the updated user data structure, enhancing user experience with billing visibility.

frontend/src/shared/lib/i18n.ts

@@ -107,7 +107,11 @@ const resources = {
         status: 'Статус оплаты',
         suspended: 'Приостановлено',
         paidUntil: 'Оплачено до {{date}}',
+        paidUntilLabel: 'Оплата:',
         neverPaid: 'Оплата ещё не производилась.',
+        neverPaidShort: 'Не оплачено',
+        expiredShort: 'Истекло',
+        daysRemaining: '{{count}} дн.',
         newRequest: 'Оформить оплату',
         period: 'Период',
         periods: {
@@ -246,6 +250,7 @@ const resources = {
           userName: 'Имя пользователя',
           role: 'Роль',
           statusLabel: 'Статус',
+          billingLabel: 'Оплачено до',
           manage: 'Управление',
           empty: 'Пользователи не найдены.',
           total: 'Всего: {{count}}',
@@ -616,7 +621,11 @@ const resources = {
         status: 'Payment status',
         suspended: 'Suspended',
         paidUntil: 'Paid until {{date}}',
+        paidUntilLabel: 'Payment:',
         neverPaid: 'No payment has been made yet.',
+        neverPaidShort: 'Not paid',
+        expiredShort: 'Expired',
+        daysRemaining: '{{count}}d',
         newRequest: 'Set up payment',
         period: 'Period',
         periods: {
@@ -755,6 +764,7 @@ const resources = {
           userName: 'Username',
           role: 'Role',
           statusLabel: 'Status',
+          billingLabel: 'Paid until',
           manage: 'Manage',
           empty: 'No users found.',
           total: 'Total: {{count}}',