A2 ONLY. Built from current good 2B-compatible base: 02_same_plus_reference_header_safety.
Goal: match head/face color to the now-correct body/torso without touching A2 body texture 350d703c or any 2B files.
No IDs changed, no WMB changes, no material refs changed, no container/table redesign.
Test: 01_HEAD_PL0000_SKIN_ALBEDO_from_reference
Most likely face/head albedo only. Should shift head toward the body without touching torso.
2430b7de: base_size=244224 base_sha=9cb9f2f1 -> ref_size=131072 ref_sha=8917b5fd
