PPA Minimal Render — Claude v2

STEP-derived Psi=I surrogate · nicht gemessener g-Faktor · kein EM-Modell · relativer Layout-Indikator

Transversal R-L — XY-Ebene (b0_y_transverse_xz)

Sagittal H-F — ZY-Ebene (b0_x_sagittal_yz, true YZ)