Follow-up to the #39 fix in d274275, which mara reports still doesn't
scroll in practice.
The bug: overflow-y: auto and justify-content: flex-end on the *same* flex
column is a known WebKit/Safari interop gap — the flex-end-justified
overflow gets clipped at the container bounds instead of becoming a
scrollable region, so nothing actually changed from the user's side despite
the CSS being 'correct' per spec. This app targets iOS Safari 12+
(vite.config.ts legacy targets), squarely in the affected range.
Fix: split the concerns onto two elements. .cart-items is now a plain
overflow-y: auto scroll container with no alignment property. The new
inner .cart-items-inner wrapper carries display:flex/flex-direction:column/
justify-content:flex-end, with min-height: 100% (a floor, not a fixed
height) so it still bottom-anchors a short list but grows past 100% and
scrolls normally in the outer container once content overflows it.
Build clean.
cb316d16d1