* feat(collections): back collections with user-authored Trakt lists Collections could sync only Trakt's built-in trending/popular/recommended feeds; a server admin could not populate a collection from a specific user's Trakt list (e.g. a curated 'Saw in timeline order' list) (#214). - trakt.Client.GetUserList fetches /users/{user}/lists/{slug}/items in list order, mixing movies and shows and skipping non-title entries. - New 'trakt_list' collection source mode: catalog.ParseTraktListURL accepts a trakt.tv list URL (or bare user/slug), and syncTraktListCollection reuses the preset pipeline's matching/ordering via an extracted completeTraktEntrySync helper. Public lists need no access token. - Trakt import handler accepts list_url as an alternative to preset; the admin collection editor's Trakt form gains a Source toggle (discovery feed vs user list) with a list-URL input. Additive-only: new source mode + optional request field; preset path unchanged. Fixes #214 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(collections): round-trip trakt_list through the edit form, unlock mixed libraries, validate list host Three review fixes for user-list-backed collections: - The admin edit form now detects mode "trakt_list", shows an editable list URL (mirroring the create form) and saves the source back as trakt_list with list_url preserved — previously any edit silently rewrote the collection into a trakt_preset Trending Movies feed. - Library eligibility in list mode is mixed (movies + shows) instead of inheriting the hidden media-type default of movie, since Trakt lists mix both and entries match by their own type. - ParseTraktListURL only accepts trakt.tv / www.trakt.tv hosts, so a list-shaped URL on another domain fails fast with the format error instead of a confusing later sync failure. source_config now carries list_url alongside the legacy url key (additive); sync reads list_url, then url, then source_url. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com> Co-authored-by: Quick <31828688+Quick104@users.noreply.github.com>