Ming Liu

# 🚀 Add video_contact_sheet: Generate contact sheets from videos using keyframes ## Summary This PR introduces a new advanced utility script video_contact_sheet which generates visual contact sheets from video files...

### Summary Proposal to add a new script **`advanced_tools/video_contact_sheet/`** that bulk-generates contact-sheet thumbnails for videos. It extracts scene-representative frames, composes them into a grid, and overlays basic metadata. ### Why...