Compute scale-aware min/max orbit distance and fly speed by multiplying the
scene bounding-box diagonal by the per-parameter factors in
config.controls.scaleMultipliers. Pure math — the caller owns the field
writes, active-control mutation, and gating against stored auto-frame limits.
Compute scale-aware min/max orbit distance and fly speed by multiplying the scene bounding-box
diagonalby the per-parameter factors inconfig.controls.scaleMultipliers. Pure math — the caller owns the field writes, active-control mutation, and gating against stored auto-frame limits.