translate

name: translate description: Sync messages/en.json and messages/ja.json for this repository. Use when the user asks to update translations, fill missing Japanese strings, or remove stale i18n keys. Run bun run build before reading translations, then add missing Japanese entries, fill empty values, remove stale keys, preserve key order from en.json, and keep placeholders, ICU syntax, and brand names unchanged.

Sync translations between messages/en.json and messages/ja.json.

1. Run bun run build before reading the translation files so extracted messages are current.
2. Read messages/en.json and messages/ja.json.
3. Add any keys present in en.json but missing in ja.json.
4. Fill any ja.json values that are empty strings using natural Japanese.
5. Remove keys from ja.json that no longer exist in en.json.
6. Preserve the same key order as en.json.
7. Keep brand names untranslated.
8. Keep placeholders such as {count}, {name}, and {date} intact.
9. Keep ICU plural syntax intact.