Four-cut cluster pulling the Smart-playlist machinery out of
Playlists.tsx. 763 → 480 LOC (−283).
runPlaylistsOpenSmartEditor — open-existing flow: tries
ndGetSmartPlaylist first (freshest rules), falls back to
ndListSmartPlaylists if that fails or doesn't return the playlist;
populates the editor with parsed filters or a name-only seed for
shared / migrated edge cases; degrades gracefully with a warning
toast if everything fails.
runPlaylistsSaveSmart — create / update flow: dedupes the base
name against existing playlists by appending `-2`, `-3` … on
creation (skipped on edit); builds rules via
buildSmartRulesPayload; calls ndCreate or ndUpdate; tracks the
result in pendingSmart so the polling hook can observe rules
processing on the server.
usePendingSmartPolling — every 10 s polls fetchPlaylists +
getPlaylist for each pending item; rehydrates the playlist store
when the detail endpoint reports fresh metadata before the list
endpoint catches up; stops polling an item when it has songs +
its cover changed (or after ~3 minutes hard timeout).
PlaylistsSmartEditor — the full smart-editor card (three
sections: Basic / Genres / Years + Filters). Owns no state of
its own; every input is a controlled component against
smartFilters via setSmartFilters. The cancel button still resets
through the page's setters.
Playlists drops the inline definitions plus its direct
'../api/navidromeSmart' import (now consumed inside the two
orchestrators). Pure code move otherwise.