ACCEPTANCE CRITERIA (7/7)
☑ All M3 accessibility patterns extracted from 28+ component accessibility pages
☑ Patterns organized into reusable checklist format (compatible with `*execute-checklist`)
☑ Checklist covers: keyboard nav, screen reader, touch targets (48dp minimum), color contrast (4.5:1), focus indicators, state announcements
☑ Generic "UI Accessibility Checklist" created for components not in M3
☑ @cyber-chief reviews and approves checklist coverage (WCAG AA + LGPD)
☑ Integration: @qa can run `*execute-checklist accessibility` during story review
☑ Test: checklist executes successfully against at least 1 real CRM component