* feat(i18n): add Japanese (ja) locale
- Add packages/app/src/i18n/resources/ja.ts with 1287 keys matching en.ts
- Register ja in i18next.ts, locales.ts (SupportedLocale, LANGUAGE_OPTIONS,
SUPPORTED_LANGUAGES, LANGUAGE_NATIVE_NAMES, LANGUAGE_NAMES_BY_LOCALE,
resolveSupportedLocale)
- Add ja label key to all six existing locale files (ar, en, es, fr, ru, zh-CN)
- Update locales.test.ts to cover ja in all relevant assertions
Translation reviewed by Codex across four passes; terminology, placeholder
parity, and naturalness confirmed clean.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix(i18n): add ja to resources.test.ts and fix test descriptions
- Import ja and add to key-parity, fallback-ratio, interpolation, and
model-count assertions in resources.test.ts
- Update test descriptions to say "all supported language(s)" instead of
"UN official language(s)" (ja is not a UN official language)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* docs: add Japanese README (README.ja.md)
Add README.ja.md translated from the English source, reviewed by Codex
across two passes. Link it in the language navigation of README.md and
README.zh-CN.md.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: apply oxfmt formatting to locales.ts and ja.ts
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
