youtube.com/watch?v=...&list=... and music.youtube.com/watch are single
videos in the backend (Source::YouTubeVideo / YouTubeMusicTrack) regardless
of the list param. Previously isPlaylistSource returned true for these,
which would have triggered the playlist probe path while the video probe
was already running, and the render would attempt to show playlist UI on
an item whose playlistProbeState stays idle.
Guard: if pathname === '/watch', return false before the list-param check.
routes.rs:
- CaptureBody gains per_item_quality (HashMap<String,String>, serde(default))
and sync (bool, serde(default)); both validated before use
- per_item_quality values validated against same quality predicate as top-level
quality field ("best"|"audio"|"NNNp") so bad per-video values are rejected
at the API boundary rather than silently falling through to quality_format
- capture_handler threads body.per_item_quality + body.sync into CaptureConfig
(replaces hardcoded empty stubs); rearchive_handler keeps empty defaults
- New POST /api/archives/:id/captures/probe-playlist: calls
probe_playlist_qualities via spawn_blocking; 400 for non-playlist locator,
502 on yt-dlp failure, returns PlaylistProbeResult as JSON
api.js:
- probePlaylist(archiveId, locator): POST probe-playlist endpoint
- submitCapture: forwards per_item_quality (non-empty) and sync:true from
extraExtensions param added to submitBgJob
CaptureDialog.jsx:
- isPlaylistSource(): detects yt:/youtube: playlist/@/channel, ytm:playlist/,
YouTube/YTM HTTP(S) URLs with list= param or channel pathnames
- makeItem(): 6 new playlist state fields
- applyPlaylistQuality(): conflict logic — videos that can reach selected
quality get it set; videos that can't and have no prior selection are left
null (conflict); videos with a prior selection keep it when quality is raised
- hasConflict(): any playlistItems entry with quality===null
- updateLocator(): isPlaylistSource branch with 800ms debounce→probePlaylist;
existing isVideoSource path unchanged
- Archive button disabled when anyConflict or any probe in flight
- Per-video expand list with individual quality selects, conflict badges,
sync toggle (appears after probe completes)
styles.css: playlist expansion, conflict, sync toggle CSS
