A small polish release for onboarding and the best-practices guide.

The final onboarding step for Claude Code now says "Check my Claude Code setup", the same wording as the Settings row that runs the same review session. One action, one name.
The best-practices guide the review session follows now actually teaches the execution model: when to orchestrate agents and how many (the scaling ladder), the maker and checker loop rules, and which model tier to route to which kind of work. Existing installs benefit immediately, since the guide is fetched fresh from the site on every run.