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/pages/DeepLinkRedirect.tsx

@@ -311,7 +311,7 @@ export default function DeepLinkRedirect() {
 
               {/* Back to cabinet */}
               <button
-                onClick={() => navigate('/subscription')}
+                onClick={() => navigate('/subscriptions')}
                 className="w-full py-2 text-sm text-dark-500 transition-colors hover:text-dark-300"
               >
                 {t('deepLink.backToCabinet')}
@@ -353,7 +353,7 @@ export default function DeepLinkRedirect() {
             </div>
             <p className="mb-2 font-medium text-dark-200">{t('deepLink.errorTitle')}</p>
             <p className="mb-6 text-sm text-dark-400">{t('deepLink.errorDesc')}</p>
-            <button onClick={() => navigate('/subscription')} className="btn-primary w-full">
+            <button onClick={() => navigate('/subscriptions')} className="btn-primary w-full">
               {t('deepLink.goToSubscription')}
             </button>
           </div>