Adds the second half of the live-archive flow. AUTO catches a stream
as it happens; VOD catches the recently published archive. Both
together close the gap a Twitch viewer-side archivist cares about.
Streamer list grows a third per-streamer toggle (blue "VOD") next
to AUTO and REC. When enabled, the main-process auto-VOD poller
periodically scans that streamer's VOD list and queues anything
that is (a) within the rolling age window, (b) not already in
downloaded_vod_ids, and (c) not already in the active queue. The
age window keeps freshly-enabled streamers from suddenly dumping
their entire historical backlog into the queue — when a user flips
VOD on, only VODs published in the last N hours (default 24, capped
at 720) get auto-pulled.
Polling cadence is in minutes, not seconds — VOD-listing scans are
heavier than live-status checks and new VODs only appear after a
stream ends, so minute-level lag is fine. Default 15 min, clamped
[5, 360]. Independent timer from the auto-record poller because
their cadences shouldn't be coupled.
UI:
- Streamer item: blue "VOD" pill next to AUTO/REC, identical interaction.
- Settings card "Auto-VOD download": poll interval + max age fields.
- Discord card: optional "Notify when a VOD gets auto-queued" checkbox.
Wires through save-config so toggling triggers restartAutoVodPoller
without a full app restart, and through shutdownCleanup so the
timer is killed on quit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>