fix: multi-subscription UI audit fixes and cache invalidation improvements

- Fix AdminUserDetail multi-subscription display with useMemo optimization
- Update Dashboard subscription cards and purchase entry points
- Fix WebSocket notification handlers for multi-subscription context
- Update SubscriptionPurchase cache invalidation for multi-tariff mode
- Fix Subscriptions list page and navigation patterns
- Update App routing, DeepLinkRedirect, and CommandPalette for multi-sub
- Add SubscriptionListCard component
- Fix TopUpResult and PromoOffersSection navigation

src/providers/WebSocketContext.ts

@@ -16,6 +16,7 @@ export interface WSMessage {
   new_balance_rubles?: number;
   description?: string;
   // Subscription events
+  subscription_id?: number;
   expires_at?: string;
   new_expires_at?: string;
   tariff_name?: string;