The trashed-side gesture surface was sized to the rows' fitted height, so
blank column space below the last row couldn't arm a marquee — a dead
zone the board side doesn't have (DESIGN/04 > The trash: the column's
gesture surface is full height). The rows content now takes
maxHeight: .infinity like LaneView's scrollableCards, the identical
structure in the identical position, so the band arms from anywhere in
the column.
Claude-Session: https://claude.ai/code/session_01SR4XGjmBE16ZUYWpfFHXwY