[Epic 7] UX: menu-bar & settings UI, onboarding & accessibility

[aquitaine]

Epic: User experience & accessibility

Build the designed screens natively; accessibility is a release gate, not post-1.0.

Milestone: M1 → M3 · PRD: UX-001…UX-010, §8

Scope

• Menu-bar popover (11 states) and settings window (display detail, arrange, scenes, automation, health & recovery, Labs) from the design kit (UX-001/002/003).
• Per-display cards, menu reordering, favorites/recent, risk labels (UX-003/004/005/006-equiv).
• Onboarding capability scan + contextual permission requests (UX-009).
• Undo + activity log; OSD feedback (UX-004/007).
• Accessibility: VoiceOver, full keyboard nav, reduced motion, contrast, no off-screen focus trap; recovery never depends on color/pointer/animation/the disconnected display (UX-005/006).
• Localization-ready strings; ≥40% expansion tolerance (UX-008).

Acceptance

• ≥95% of users find Reconnect All after onboarding; full keyboard/VoiceOver completion of disconnect/reconnect/recovery (T-027); pseudo-localization shows no clipping.