"""Video analysis reusable tooling for the video_analysis_campaign_20260621 campaign.

Scripts in this namespace:
- download_video.py: yt-dlp wrapper (subprocess)
- extract_transcript.py: youtube-transcript-api wrapper
- extract_keyframes.py: ffmpeg scene detect + cv2 + imagehash dedup
- ocr_frames.py: winsdk (or tesseract) OCR
- synthesize_report.py: orchestrator

Per AGENTS.md, scripts are namespace-isolated by directory.
Per conductor/code_styleguides/python.md, 1-space indent + type hints + no comments (in implementation code).
Per conductor/code_styleguides/error_handling.md, all scripts return Result[T, ErrorInfo].
"""