Addresses review of the ad/subtitle work (the ad-skip.mjs -> broadcast-helper.mjs
rename's other half; the prior commit only recorded the deletion):
- ad mute leak: the ad-skipper muted during an ad but never un-muted, so the
main video stayed silent after the first ad. Save the pre-ad muted/playbackRate
and restore them when the ad ends (verified: muted false -> true -> false).
- captions were only applied once when scenario.mjs ran, not for the whole
broadcast. The persistent helper now applies the rule (OFF by default, Korean
ON if offered) per video and ENFORCES it every tick - one-shot did not hold
because YouTube silently re-enabled captions (verified it stays off across 8s).
- ad-skip + captions merged into broadcast-helper.mjs (one CDP process).
- the 60fps MV test now lives in the repo: scenario.mjs gains MV_QUERY (search +
auto-pick the first >=60fps result) and WATCH_SECONDS, plus the
fullscreen-toolbar-hide fix. The broadcast runs via the committed
stream-hold.ts (audio + keepalive), not an out-of-repo copy.
- document the test env vars (CDP_PORT, HOLD_MS, TEST_*, MV_QUERY, WATCH_SECONDS).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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