Run compose api as HOST_UID/GID with cache under /tmp, poll slice files for
ready_event when ffmpeg stderr is silent, invoke batch via venv python, exclude
logs from build context, and document Docker cache/VLC troubleshooting.
Co-authored-by: Cursor <cursoragent@cursor.com>
Run visualization from pipeline/result paths without vis_pending copies, publish labeled MP4 for browser only after visualize_result_video completes, and purge batch cache after the background labeling task finishes.
Co-authored-by: Cursor <cursoragent@cursor.com>
