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Comments: switch from CLI --write-comments to yt-dlp Python API with getcomments=True — more reliable, proper extractor_args dict format Dislikes: add dislike_count column, fetch from returnyoutubedislike.com after each video metadata upsert (5s timeout, non-fatal) UI: replace emoji like count with a like/dislike ratio bar — blue fill showing like proportion, labels on each end; views stay in meta row Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>