Root cause: Odesli's linksByPlatform frequently lacks youtube/youtubeMusic
(confirmed live for many Spotify tracks). resolve_link_hits only added a
YouTube hit when Odesli supplied one, so with no Lidarr match the hit list
was empty -> server 404 'No results found'.
Fix: always run a normal youtube_search (via build_combined_hits) for the
fallback; when Odesli DID return a link, insert its exact track as the first
YouTube hit. Lidarr-first ordering preserved.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Review finding: bare endswith routed look-alike hosts to the direct yt-dlp
path. Match on a domain-label boundary and drop the redundant _DIRECT_HOSTS.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
