fix: defaut ui triage (#4802)

* fix: theme-aware payment paths, auto-group validation, route guards, perf group filtering

- Add common.ThemeAwarePath to generate correct redirect URLs based on
  active theme (default vs classic), replacing hardcoded /console/* paths
  in 7 controllers and service/quota.go (#4765)
- Validate auto-group availability against getUserGroups before defaulting
  form values; playground falls back to 'default' group when 'auto' is
  unavailable (#4796, #4799)
- Enforce HeaderNavModules settings in rankings route (frontend + backend
  API) and SidebarModulesAdmin in playground route to block direct URL
  access when features are disabled (#4704, #4512)
- Filter perf_metrics API response to only include currently configured
  groups, hiding stale data from deleted groups (#4790)
- Preserve query params (pay=success/fail) in /console/topup → /wallet
  frontend redirect

* fix: update hero section text and localization strings for clarity

web/default/src/i18n/locales/ru.json

@@ -2059,7 +2059,7 @@
     "IP Filter Mode": "Режим фильтрации IP",
     "IP Restriction": "Ограничение IP",
     "IP Whitelist (supports CIDR)": "Белый список IP (поддерживает CIDR)",
-    "is an open-source AI API gateway for self-hosted deployments. Connect multiple upstream services, manage models, keys, quotas, logs, and routing policies in one place.": "— это open-source API-шлюз для ИИ, предназначенный для самостоятельного размещения. Подключайте несколько вышестоящих сервисов и управляйте моделями, ключами, квотами, журналами и политиками маршрутизации в одном месте.",
+    "Power AI applications, manage digital assets, connect the Future": "Обеспечивайте AI-приложения, управляйте цифровыми активами, соединяйте Будущее",
     "is less than the configured maximum cache size": "меньше настроенного максимального размера кэша",
     "is the default price; ": "— цена по умолчанию; ",
     "It seems like the page you're looking for": "Похоже, страница, которую вы ищете",