docs: clarify Active Crew absence wording in 1.4.0 beta guide Keep removal-confirmation language and avoid wording that looks like an instructional Active Crew step. Co-authored-by: Cursor <cursoragent@cursor.com>
docs: replace 1.3.9 beta guide with 1.4.0 checklist Publish Beta-Test-Guide-v1.4.0 as the active prerelease checklist, supersede the v1.3.9 page with a short notice, and point Home/Sidebar at the new guide. Co-authored-by: Cursor <cursoragent@cursor.com>