sweepRwBookkeepingMass
Bookkeeping-mass sweep for scenarioCompareRwPanels.
MuJoCo requires every wheel body to carry a positive mass, while the BSM balanced-wheel effector is ideally massless; the scenario uses a 1e-6 kg bookkeeping mass. This sweep reruns the comparison with that mass reduced to confirm it is what sets the ~1e-10 rad cross-engine agreement floor.
Results are written to results/sweepRwBookkeepingMass.json.