video-repurposer 是做什么的？
Turn a long recording (Zoom masterclass, webinar, cohort session, screen-share teaching video) into standalone LinkedIn clips - transcribe with Deepgram, choose the cuts, QC and score them, show a review table for approval, then render finished captioned MP4s with ffmpeg and emit tracker-sheet rows. Use this whenever the user drops a video file or recording and wants clips, or says any of "clip this", "repurpose this recording", "cut this into clips", "make LinkedIn videos from this", "which par