- SWProcessHeader appearance="multi": the process base and both end
covers meet the file name and the window area with right angles
(border-radius 0, multi block only). default keeps the Strana top
corners 6 / covers 5; step tabs, arrows, colors and sizes unchanged
- DESIGN_RULES §14 and Step Header spec §9.2 record the multi-only rule
- process-header-states.check.mjs: default 6 / 5 kept, multi 0 (17/17);
build:sw and check:ai-docs pass, Storybook zoom shows square multi ends