motherboard 2026-05-10/11/19 and pushT 2026-06-18 were recorded without wrist cameras, on an earlier calibration epoch, and are published uncut with their defects described in bad_frames.json rather than removed. data/ now holds only the 2026-09 sessions, which carry two wrist cameras and are cut to clean spans.
Server-side copy plus delete in one commit: no bytes re-uploaded, no half-moved state. The three indices are split rather than moved, so neither side is left unlisted.
