Add concise family-level video-kinematic delay summaries to 162 existing dataset READMEs. Simulation families state that manual testing was not performed because synchronization is perfect by design. Create no files and skip all 10 absent README targets. Staging manifest SHA-256: 0caf9f17ca0403f75dab079d3f38a5284c0650b494cbd57cf431905d5ab3deb8.
