# Sanitized excerpt conceptually from quality.py evaluate_quality
# Verified by tests/test_quality_parity.py (2026-10-19)

# Reject examples (reason codes):
# FINGER_TOO_SMALL when fingerFraction < 0.15
# BLUR_DETECTED when blurScore > 0.45
# MOTION_DETECTED when motionScore > 0.5
# LOW_EXPOSURE / HIGH_EXPOSURE on exposureScore bounds
# NAIL_NOT_VISIBLE / PROXIMAL_NAIL_FOLD_HIDDEN / DIP_NOT_VISIBLE when anatomy flags false

# Pass returns status "pass" with empty reasonCodes when metrics align.
# payload marks researchOnly: True
# A pass is an engineering quality gate on reported metrics, not a clinical measurement.