feat(proportion): deltoid socket anti-Michelin axes + X-Z bury (0060) - #65
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August 9, 2026 21:15
Keep DELT scale 1.35; retune ry/rz 0.72/0.78 and outer 0.08; distal socket bury t=0.18 along UA X-Z only (0051 Y fence). Dedicated T0-T12 suite.
Skip non-finite/short UA endpoints without poisoning centers. Clamp bury X that would increase lateral float under arm splay so product medial socket overlap stays ~10 mm while distal Z bury remains.
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Summary
DELT_ARM_RADIUS_SCALE=1.35; retune axesry=0.72/rz=0.78and outer bias0.08(was near-sphere 0.90/0.85 + 0.25 float).t=0.18along upper-arm X–Z only (0051 deltoid Y co-read fence; AI2 P2-1).tests/test_proportion_deltoid_socket.pyT0–T12 + T6b/T7b/T3b.Product evidence (local
nofuse_0060)Test plan
uv run ruff check ./ruff format --check .uv run basedpyrightuv run pytest(pre-push + local full)test_arm_depth__t6_deltoid_matches_skeleton_shoulderTrack: 0060-DeltoidSocketShape