0bd4f8cb3b
dd81a7ef set CanDownload=false to stop Wholphin's screensaver from
404ing on the nonexistent /Items/{id}/Download route — but the flag is
load-bearing for Infuse, which refuses Direct Play (Static=true
streaming) of items it believes it cannot download. With omitempty the
field vanished from the JSON entirely and Infuse playback broke, while
PlaybackInfo-negotiating clients were unaffected.
Resolve the underlying inconsistency instead of trading one client for
the other: implement GET/HEAD /Items/{id}/Download serving the original
file (range support, Content-Disposition, optional mediaSourceId for
multi-version items) under stream-group auth, and restore
CanDownload=true now that the route exists. Fixes Infuse playback and
keeps Wholphin's download callers working.
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>