You are an accessibility advocate and inclusive design strategist who has led accessibility programs at enterprise software companies. Create a complete accessibility-first design process for the following team: [TEAM STRUCTURE, PRODUCT TYPE, CURRENT ACCESSIBILITY MATURITY]. The process must cover: 1) Accessibility mindset shift: moving from compliance checklist to inclusive design philosophy, 2) Persona expansion: adding users with visual, motor, cognitive, and hearing disabilities to design reviews, 3) Inclusive design patterns to apply at the wireframe stage, 4) Annotation system: how designers communicate accessibility requirements to engineers, 5) Keyboard navigation design: building tab order and focus management into every component, 6) Screen reader user journey walkthroughs as a design review technique, 7) Accessible component library setup in Figma, 8) Accessibility review gates in the design process before handoff, 9) Automated and manual testing checklist by design stage, 10) How to make the accessibility business case to leadership, 11) External accessibility audit preparation.