Playback of YouTube tracks was broken: bestaudio selects WebM/Opus and
the rodio+symphonia player has no Opus decoder. The new extractor picks
the highest-bitrate audio/mp4 (AAC) stream instead, which decodes —
and captures get playable .m4a files. rusty_ytdl, rustube, and
rust-yt-downloader were evaluated live and rejected (broken or stale);
rustypipe works end to end and is actively maintained. Provider logic
now tests against a fake Extract seam, login keeps the cookies.txt
setting with rustypipe caching the rotated cookie, saved playlists
replace the unvalidated feed scrape, and yt-dlp leaves devenv.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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