The strip's standard-width division read the drop registry's strip
frame during body evaluation, but the registry is deliberately
unobserved (it exists for event-time reads): the first body ran
against a zero frame, every lane collapsed to the 1pt floor, and
nothing invalidated the view when the real measurement landed — the
board stayed corrupted until an unrelated re-render. The layout now
reads the GeometryReader's live proposal (reactive by construction);
the drop delegates keep reading the registry at event time.
Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY
rzen
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