feat: default locale Russian, geo determines language for other countries

- localization-svc: defaultLocale ru, resolveLocale only by geo
- web-svc: DEFAULT_LOCALE ru, layout lang=ru, embeddedTranslations fallback ru
- countryToLocale: default ru when no country or unknown country

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitignore

@@ -40,4 +40,8 @@ apps/frontend/data/*
 !apps/frontend/data/.gitignore
 /searxng
 
-certificates
+certificates
+
+# SSL backup (приватные ключи не в репо)
+deploy/k3s/ssl/backup/*
+!deploy/k3s/ssl/backup/.gitkeep