CuasDnnInfer auto-detects reg from the ONNX output channels (6 = reg head
{det,Vx,Vy,logvar,dx,dy}, else grid) via getOutCh()/isReg(), and adds
inferROIReg() returning {S,Vx,Vy,sigma,dx,dy} per ROI pixel (S=sigmoid(det),
Vx/Vy model-bounded, sigma=exp(logvar/2)). CuasDetectRT branches: reg saves an
S-first {S,Vx,Vy,sigma} hyperstack (-VXYS) + -OFFSET (showArraysHyperstack,
channel x time x ROI), metadata-tagged; ghostbuster/grid renders/recurrent
skipped (no grid corners, |v|<=vmax baked in). Set curt_dnn_patch=32 for the
reg model; curt_dnn_vmax unused in reg mode.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>