swing-video-check

Use when the user shares a filmed golf swing — an *.mp4/*.mov clip dropped into the project (named like 2026-07-17_driver_grip-reset.mp4) — or says "check my swing", "here's my grip rep", "analyze this driver clip", "did I square it". One camera angle per clip. Extracts key frames with ffmpeg and returns a short drill-scoped checklist plus one swing thought, grounded in the current practice card. Qualitative visual…