The composer seat lives in a fixed-height conversation column with
overflow hidden, so a long question batch pushed the footer actions out
of reach (review r3635427112). The card now flexes with a viewport-
relative max-height, the option list is the scrollable region (ChatView
list pattern: min-height 0 + overflow-y auto), and header/footer are
flex-shrink 0 so progress, navigation, skip, submit, and cancel stay
reachable.
Verified in headless chromium against this sheet (900x600 viewport,
30-option batch): card capped at 360px (60vh), the option list scrolls
(scrollHeight > clientHeight), and the footer submit/skip buttons stay
inside the viewport. jsdom cannot assert layout; the playwright smoke
follow-up tracks composer scrolling with the existing debt.
imccyu
850cbe912d