Undertow V0.46.1

Prevent duplicate Undertow titles when you already own them locally. Enable Skip titles already in the local library, save, and refresh. Matching uses IMDb, TMDB or TVDB IDs. The switch is off by default.

Series are all or nothing: any matching local series skips the entire Undertow series, even when you own only some episodes. This does not fill episode gaps. Turn the switch off, save, and refresh to restore retained Undertow entries. Physical files and distinct cuts are unchanged.

Built against pinned Emby 4.10.0.40 references; 57 contract checks passed. Verified on production Emby 4.10.1.0, including toggle restoration and full rebuild. Install Undertow.dll and preserve existing configuration/data.