camtasia-auto-edit

Detect filler words (um/uh), long silences, and retake attempts in a Camtasia recording, then drop visible Camtasia markers on the timeline so the user can scrub-and-cut. Use when the user says "auto-mark this video", "find the ums in this recording", "where are the retakes", "drop markers in this .tscproj", or hands over a `.trec` / `.mp4` / `.tscproj` file and asks for help editing.