card: LeRobot sibling now drops the stale 0.9 s tail (17,088 frames)

card: document the recorder timestamp artefact (ur_joint_states +0.900 s, tcp_pose/wrench ~+0.41 s; per-take tau; fix rule); depth now opt-in in the recorder

card: fact-check fixes (7 numeric/wording corrections), redact robot LAN IP

carrot_in_pot raw release: 54 takes (2026-09-14), vectors.h5 + cam1/cam2 mp4 + depth.h5, card, data dictionary, stats, assets

initial commit