README: document the estimated contact-force columns (force_*_normal_n / penetration_mm / target_pose), the 1 N/mm stiffness assumption, and the limits — the data shipped without a word about it
previews [pushT]: re-rendered against the task's own calibration epoch and the current curation — FLAGGED frames are outlined and named, and the clip window starts at the episode's release trim offset rather than at H5 frame 0
previews [motherboard]: re-rendered against the task's own calibration epoch and the current curation — FLAGGED frames are outlined and named, and the clip window starts at the episode's release trim offset rather than at H5 frame 0
