feat: ship jellyfin-web 12.3 and reproduce Jellyfin 12.3 - #561

Jellyfin 12.3 shipped on October 23, server and jellyfin-web both bugfix releases. Polyfin now ships jellyfin-web 12.3 and answers as Jellyfin 12.3 does.

Pins

• The Dockerfile takes jellyfin-web's built files from jellyfin/jellyfin:12.3@sha256:2038fe038ab3876a80f6e7b7e0aef6607b032c7dc0c9b3ad3296d0b2eba3bbb5 (the multi-platform index), and its source archive v12.3.tar.gz by its sha256. The same methods give the old 12.2 pins exactly.
• internal/jellyfin/jellyfin.go reports 12.3.0, as a real Jellyfin 12.3 does on /System/Info and /System/Info/Public. The admin app signs into jellyfin-web as 12.3.0.
• The notices, the docs and the admin app's copy that state the current version move to 12.3. Mentions of 12.2's own changes, and of the responses recorded from it, stay.

Each 12.3 change

Server:

• Do not store ratings or gains that are not finite numbers jellyfin/jellyfin#18267 (no ratings or gains that are not finite numbers): adjusted. An addon's imdbRating of Infinity, inf or 1e999 became +Inf, which the JSON encoder failed on: /Items answered 200 with an empty body. The metadata editor answered 500 to "NaN" or "Infinity". Such a rating now counts as none, from an addon, an IPTV provider or the editor, which answers 204 as Jellyfin 12.3 does. Gains were already finite.
• Treat a year off by one as a tie in TMDb result ranking jellyfin/jellyfin#18343 (a year off by one as a tie in TMDb ranking): reported for Looser matching of local files, and unmatched files listed as plain videos #546, not implemented here. Jellyfin scores an exact title 8, a whole-word prefix 4, and 2 more for a year within one either way, and keeps a strictly higher score, so ties keep TMDb's order. Polyfin's local file matching keeps a title only when exactly one has the year given.
• Fix crash when a subtitle charset has no .NET encoding jellyfin/jellyfin#18309 (a subtitle charset without an encoding): nothing needed. Polyfin reads anything other than UTF-8 and UTF-16 as Windows-1252, and has no path that fails on a charset.
• Fix crash probing streams without frame size jellyfin/jellyfin#18243 (streams without a frame size): nothing needed. Polyfin never read an absent size; it leaves out an unknown 0:1 aspect ratio, which 12.3 reports as it is, a difference older than 12.3, now documented and tested.
• Fix unbalanced parenthesis in the HalfTopAndBottom image extraction filter jellyfin/jellyfin#18325, Suppresses useless warnings jellyfin/jellyfin#18337 and Update Microsoft jellyfin/jellyfin#18418 do not apply.

Web:

• Show an error when library options cannot be saved jellyfin/jellyfin-web#8644 (library options save error) and Fix Delete All device deletion jellyfin/jellyfin-web#8347 ("Delete all" devices): nothing needed. Both pages are under the dashboard, which Polyfin's script sends to its admin app.
• Remove extra MediaSegmentManager jellyfin/jellyfin-web#8649: jellyfin-web asks /MediaSegments once per playback instead of twice.
• Fix hidden Audio Normalization on non-iOS jellyfin/jellyfin-web#8650 (Audio Normalization shown on every browser): Polyfin already gives songs' and albums' gains. On the same files, Jellyfin 12.3 gives 21.8 and 9.8 dB for the songs and 12.5 for the album after its normalization task; Polyfin gives 21.8, 9.8 and 12.54.
• Refresh library lists after played state changes jellyfin/jellyfin-web#8558 (lists refreshed after played state changes): works through the UserDataChanged messages Polyfin sends every socket of the user. jellyfin-web's query keys and cache settings are unchanged, so the answers kept for the last user are still dropped when another one signs in.
• Update @jellyfin/sdk to 1.0.1 jellyfin/jellyfin-web#8689 (@jellyfin/sdk 1.0.1) changes no request. Remove broken header links in suggestions view jellyfin/jellyfin-web#8684 and Show the library name as page title jellyfin/jellyfin-web#8537 need nothing.
• None of the 11 jellyfin-web files that changed holds a hook Polyfin's scripts use.

Against a real Jellyfin 12.3

scripts/jellyfin-fixtures.sh and its music part were run against Jellyfin 12.2 and 12.3, with the same setup, together with the administration requests the scripts do not make: 12.3 answers exactly as 12.2, apart from trace IDs, dates, segment names and encoder output sizes, which a fresh 12.2 recording also changes. The fixtures stay as recorded; docs/development.md says so.

Tests

• TestRatingsThatAreNotFiniteNumbersAreNone: a fake addon rates titles Infinity, NaN, 1e999 and -inf; the listing is readable JSON and only the title rated 7.5 has a rating; the editor answers 204 to those values and the field follows the addon again. It failed before: the listing had an empty body, and the editor answered 500.
• TestProviderRatingsAreNumbersOutOfTen gains NaN, which came back as "NaN" before.
• TestVideoWithoutFrameSize covers a video stream without a width or height.

Smoke

The image built from this branch serves jellyfin-web 12.3: its main.jellyfin.bundle.js is byte-identical to Jellyfin 12.3's. In Chrome, with fake addons, an IPTV source and a music folder, the following worked:

• sign-in, home, a library titled with its name, an item page;
• direct play with subtitles, and converted play;
• a title marked unplayed from another device, with the library page refreshing its marks;
• Remind me on a programme;
• the Audio Normalization setting;
• another user signing in after a session ended other than by Sign out, without the first user's kept answers;
• Sign out;
• the bundled theme, loaded from Polyfin alone.

No request answered 5xx; the four 401s came from the sessions ended on purpose. The full suite passes.