CuasRTUtils.getNumVout()/getSubDim() expose the 5D render dimensions for the
full-velocity-hyperstack memory estimate. CuasDnnInfer adds an inferROI(...,
double[][] offOut) overload that also returns the two offset channels
{dx, dy, s} per pixel (the DNN's per-pixel sub-pixel position estimate); the
existing 6-arg call delegates with offOut=null, so the field output is
unchanged. Both are prerequisites used by the CUAS-RT overhaul that follows.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>