🏭 TimberVale Works - 2D Production Line Flow Map, Bottlenecks and Queue Lab

2D companion of the TimberVale Works toy block factory: a top-down map of all 30 stations coloured by utilisation, queue bars, a throughput sweep, and a live discrete-event simulation whose queue maths is checked against Erlang C and Little's law, using the same engine as the 3D page.