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/moderation/facade/admin-moderation.facade.ts

@@ -28,7 +28,7 @@ export interface AdminModerationDashboardStats {
   reported: number;
   spam: number;
   averageRating: number | null;
-  recentActivity: { reviewId: string; productName: string; action: string; timestamp: string }[];
+  recentActivity: { reviewId: string; productName: string; eventKey: string; status?: AdminReviewStatus; timestamp: string }[];
   moderationHealthPercent: number;
 }
 
@@ -197,7 +197,7 @@ export class AdminModerationFacade {
     const averageRating = rated.length > 0 ? Math.round((rated.reduce((sum, review) => sum + review.rating, 0) / rated.length) * 10) / 10 : null;
 
     const recentActivity = reviews
-      .flatMap(review => review.timeline.map(entry => ({ reviewId: review.id, productName: review.productName, action: entry.action, timestamp: entry.timestamp })))
+      .flatMap(review => review.timeline.map(entry => ({ reviewId: review.id, productName: review.productName, eventKey: entry.eventKey, status: entry.status, timestamp: entry.timestamp })))
       .sort((a, b) => b.timestamp.localeCompare(a.timestamp))
       .slice(0, 8);