European Cyrillic Extended installs the Russian locale together with a shared
Cyrillic external font pack so interface labels and Russian content can render
without inflating the firmware image.

This bundle is display-only today. It does not add a Russian IME, and the locale
remains in review status until native-language review is complete.

Credits: Russian translations were contributed by polarikus, based on the
polarikus/trail-mate Russian localization PR.
