Add Japanese (and multilingual) translations to permission/approval dialogs

Summary

Permission and approval dialogs in Claude Code are displayed in English only. For non-English speakers, especially Japanese users, it is difficult to make informed decisions when these prompts appear.

Examples of affected dialogs

• Can Anthropic look at your session transcript to help us improve Claude Code?
• Tool execution approval prompts (Bash, file read/write, WebSearch, etc.)
• Any dialog that presents options beyond simple Yes/No

Request

Please display a Japanese translation (or the user's locale language) below the English text in all permission and approval dialogs.

Example (current):

Can Anthropic look at your session transcript to help us improve Claude Code?
> Yes / No

Example (proposed):

Can Anthropic look at your session transcript to help us improve Claude Code?
Anthropicがサービス改善のためにあなたの会話ログを確認することを許可しますか？
> Yes / No

Why this matters

• Users who are not fluent in English cannot fully understand what they are consenting to
• This is especially important for permission prompts, where users need to make trust decisions
• Japanese is one of the most active Claude Code user communities

Suggested approach

• Detect the system locale or allow users to set a preferred language in settings
• Display translated text below the English original (bilingual, not replacing English)
• Apply to all user-facing approval/consent dialogs