Claude Code Studio v7.12.1

English UI no longer shows Ukrainian (#75)

• The static markup was the untranslated default. The SPA shipped Ukrainian as
  the literal content of its HTML, with data-i18n attributes meant to replace it,
  and setLang() runs at the very end of the file. Anything that stopped the script
  before that — an error above it, a slow load — left every static string in
  Ukrainian while the parts rendered through t() were already English. That is the
  mixed-language UI in the report. 145 text nodes and 77 attributes now ship English.
• Ten inline fallbacks read t('key') || '<Ukrainian>' — a fallback that fires
  exactly when the key is missing, which is when the user is least likely to read
  that language.
• Fallback is now English-first, per key. t() resolved per LANGUAGE: a key
  missing from a known language rendered the raw key (proj.empty) into the UI.
  Both t() and setLang() now go language → English → key.
• i18n-completeness gains the check that would have caught this — no Cyrillic text
  nodes, UI attributes or inline fallbacks outside the dictionaries. No dictionary
  check could see it: every key was present in all five languages.