added the localisation alignment checklist md

[Jokasan]

Summary

Added localisation readme.md checklist

Type of change

• Bug fix
• Feature
• Documentation/localization
• Security or safety hardening
• Release/process update

Verification

List the exact commands or checks run, and include failures if any:

Documentation and localization

• Updated relevant docs, or explained why docs are not needed
• Checked whether README.md, README.en.md, and README.ja.md need matching updates
• Updated release notes or roadmap when appropriate

Safety checklist

• No real API keys, tokens, auth files, private prompts, logs, or runtime SQLite files are included
• Dashboard/API exposure, worker execution, and tool permission changes are documented if affected
• Sandbox changes keep mock/local-safe behavior as the default
• The PR is focused and avoids unrelated formatting churn

Linked issues

Closes #8