Replaces the 3-row media preview with one video-layout RGB/depth/mask still per MOS phase. Removes the old 3-file video preview folder to avoid confusion. Existing README teaser and jumbotron assets remain unchanged.
Add Data Studio preview configs and ESD split tables
Adds structured split CSVs plus small image/video preview configs for Hugging Face Data Studio. Keeps existing README teaser media and documents ESD split calculation.