Step-by-step section in the English and Japanese guides: plugin refresh
and Codex login check, creating the project and starting Claude Code
there, running /ecc:astra-review, committing on PASS, and gating the push.
Notes that the project does not need to live under the ECC checkout and
gives the installed script path.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>