kpms-zoomcheck

Diagnostics and normalization helpers for zoom mismatches in DLC/SLEAP keypoints used with keypoint-MoSeq (KPMS).

Current results (before normalization)

Video	Median bodylen (px)	CV
bma5_oft_dlc_results.h5	74.8	0.120
bma6_oft_dlc_results.h5	44.7	0.122

• KS(body length) = 0.931 (p~0) -> large difference
• Zoom-classifier acc = 0.592 (chance ~ 0.50)
• ROC AUC = 0.561

These confirm zoom differences are detectable and need correction.