the project lead's /live screenshot: a fixed tall box with the lanes in its top third and dead space under them. The renderer now knows
the height it wants: top padding + axis padding + lanes shown (at most maxLanes 7, narrowLanes 4 on a phone, never under 2)
times laneHeight (46 px, 40 on a phone, 26 compact; the mount option laneHeight overrides). It reports it through
onSize(heightPx, {lanes, laneHeight, narrow, compact}) whenever it changes and through getWantedHeight(); stats() carries
laneHeight, padT, padB, capacity, wantedHeight and autoHeight, so a page that sizes its own box reads no constants. With
autoHeight (on by default when the host set no CSS height on the canvas, which is read before the first size(); forced either
way by the option; never in compact mode, the app's card keeps its own height) the renderer sets canvas.style.height itself
and lets every lane through instead of fitting the lanes to the box. Every current host sets a height (/live 420, the hero
500, the app's card 220 and its Inspect view 420), so the frames are unchanged: the parity test on build-2 stayed equal on
every comparison. The site lane switches /live and the home fold to the hook.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit 1546b61fa1)
945e6b2b6c