ROOM CAPACITY (size-only evidence): the scenario evidences {count}
distinct interior spaces inside this structure. The committed
footprint and massing MUST plausibly hold all {count} of them at
real-world room sizes. This count is SIZE EVIDENCE ONLY — never
visualize, label or hint at the individual rooms in the image, and
never invent window or opening counts from it; size is verified
through human-scale fixed anchors (door heights, storey heights,
massing) only.