The composer collapses the model seat to its Models icon when the expanded
controls cannot share a row, but the seat's row-relative 45cqw cap made its
measured demand shrink with the row. The measured expanded state therefore
always fit and a narrow composer ellipsized the name instead of showing the
icon. Cap the seat at its 360px content width so the measurement sees the
demand, document the contract, and cover the collapse without the Plan chip.