Rebuilds the jumbotron from raw phase data so every cell starts at source frame 0 together. Camera pose now reveals only the trajectory up to the current frame rather than showing future motion at the start.
Switches the dataset card video to browser-compatible MP4/H.264 and removes maintainer-only ego_release/rerun_check helper folders from the official dataset repo. Preview files remain because they back Dataset Viewer/Data Studio configs.
