compare_laps
ChatGPTCompare usable saved lap IDs with revision-pinned sources. Returns route-aligned speed/throttle/brake traces, GPS-confidence-aware time deltas and saved analysis sectors when available. Delta is selected minus reference; positive means selected is slower. Cross-session comparisons require the same known trackLayoutId. Missing channels and unreliable GPS matches remain null. Uses Trackside's replay/live delta algorithm 3 and saved analysis; does not generate a coaching report.






