feat: tease enterprise multi-tenancy and API key controls in OSS

Add an Organizations menu entry (admin-only) that routes to an upsell
page explaining the multi-tenancy module, and surface disabled
IP Access Control / Quota Limit items in the API Key dropdown with a
tooltip pointing at the enterprise edition. Both placeholders are
shadowed by the enterprise plugin at build time: the route merger
removes the OSS Organizations entry by name, and the dropdown skips
each placeholder when the same key is contributed via configActions.

src/locales/tr-TR/menu.ts

@@ -29,6 +29,7 @@ export default {
   'menu.accessControl': 'Erişim Kontrolü',
   'menu.accessControl.apikeys': 'API Anahtarları',
   'menu.accessControl.users': 'Kullanıcılar',
+  'menu.accessControl.organizations': 'Organizasyonlar',
   'menu.profile': 'Preferences',
   'menu.login': 'Giriş',
   'menu.usage': 'Kullanım',