UX documentation (English)

English pages for international readers. Russian remains canonical for some linked ADRs and older concept notes.

Document	Purpose
cascade-ide-ui-layout-v1.md	Main window: PFD · Forward · MFD, menus, MCP control names
concept-to-implementation-map-v1.md	Flight layout vs legacy Focus/Balanced/Power concepts
../concept-overview.md	Five-minute product concept
Design handbook (RU)	Principles + map into ADRs and mockups

Russian originals: ../../ui-ux/.