TotalSeg Muscles (Dataset294) — 24-class CT segmentation

TotalSegmentator v2 part-4 submodel. 23 fg classes: humerus L/R, scapula L/R, clavicula L/R, femur L/R, hip L/R, spinal_cord, gluteus max/med/min L/R, autochthon L/R (paraspinal), iliopsoas L/R, brain, skull. Apache-2.0 weights. Patch [128,128,128] @ [1.5, 1.5, 1.5] mm iso, cubic B-spline resample, NibabelIOWithReorient, CTNormalization. Same PlainConvUNet runtime as cardiac/organs/ribs — only weights, plan stats, and palette differ.