Around July 3 plex.tv started returning the profile language-list fields
(defaultAudioLanguages, defaultSubtitleLanguages, mediaReviewsLanguages)
as comma-separated strings instead of arrays. The generated cast threw on
the successful 201 /switch response, dropping the freshly minted Home
user token: every rebind failed, the binder retried a /switch mint every
1-2s, and the app sat permanently in offline mode even after re-signing
in. Accounts without language prefs set were unaffected, which is why
the breakage looked sporadic.
Parse the language lists with a CSV-aware coercion, and make
UserSwitchResponse.fromJson strict only about authToken: decorative
fields now coerce tolerantly and a broken profile blob falls back to
defaults, so account-API drift can never brick token minting again.
close#1488
Resolve platform, hardware model, and friendly device name once via a
shared DeviceIdentityService and send them to both backends: Plex gets
a real X-Plex-Platform plus X-Plex-Device/X-Plex-Device-Name (shown as
Player in dashboards/Tautulli), Jellyfin gets the device name in the
MediaBrowser auth header. Transcode and live-TV decision requests keep
their pinned platform names, which Plex validates server-side.
close#1270
edde746