v0.0.2

Changed

• NumberRoll now renders only the digit cells it is actively rolling across: one cell per column at rest, expanding to the span of a roll while it animates and collapsing back once it settles. Previously every column kept a fixed 21-cell window mounted at all times. The animation looks identical, but the resting DOM shrinks dramatically (a 16-digit readout drops from 357 cells to 16, around 95% fewer nodes).