fix(backoffice): wording quality pass across orders, moderation, transactions, users, customers

- Replaced hardcoded English audit/timeline text (order status changes,
  review moderation events, user role/status changes) with proper
  adminXxx.timelineEvent.*/adminUsers.audit.* i18n keys, so Recent
  Activity/Timeline/Audit panels no longer mix English into ru/hy UI.
- Translated raw internal codes rendered directly to users: transaction
  payment method ('card'/'qr'/'cash_on_delivery' -> adminTransactions.methodValue.*)
  and user roles/permissions ('products.manage' etc -> adminUsers.roleValue.*/
  adminUsers.permission.*), replacing developer-facing enum leakage with
  real copy.
- Fixed wrong-noun list-footer counts: Orders/Transactions/Moderation
  list pages all reused adminProducts.items ("N товаров"/"N products")
  regardless of what was actually listed; each now has its own itemsCount
  key ("N заказов", "N транзакций", "N отзывов").
- Fixed customer detail page's "Back" button reusing adminOrders.back
  ("Back to orders") instead of a customers-specific label.
- Added translation keys to en/ru/hy + translations.ts interface for all
  of the above.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/features/admin/users/pages/admin-users-page.component.ts

@@ -45,4 +45,31 @@ export class AdminUsersPageComponent {
     }
     this.facade.setStatus(userId, next);
   }
+
+  private static readonly PERMISSION_KEYS: Record<string, string> = {
+    '*': 'all',
+    'products.manage': 'productsManage',
+    'products.view': 'productsView',
+    'categories.manage': 'categoriesManage',
+    'orders.manage': 'ordersManage',
+    'orders.view': 'ordersView',
+    'media.manage': 'mediaManage',
+  };
+
+  readonly roleLabel = (roleId: string): string => this.translate.t('adminUsers.roleValue.' + roleId);
+
+  readonly permissionLabel = (code: string): string => {
+    const key = AdminUsersPageComponent.PERMISSION_KEYS[code];
+    return key ? this.translate.t('adminUsers.permission.' + key) : code;
+  };
+
+  auditText(entry: { eventKey: 'roleChanged' | 'statusChanged'; roleId?: string; status?: AdminUserStatus }): string {
+    if (entry.eventKey === 'roleChanged' && entry.roleId) {
+      return this.translate.t('adminUsers.audit.roleChanged', { role: this.roleLabel(entry.roleId) });
+    }
+    if (entry.eventKey === 'statusChanged' && entry.status) {
+      return this.translate.t('adminUsers.audit.statusChanged', { status: this.translate.t('adminUsers.statusValue.' + entry.status) });
+    }
+    return '';
+  }
 }