Fix Chromecast playback, add release workflow + install docs
Chromecast:
- Content-Type follows the URL that stream_url() built — new
content_type_for_url() sniffs the extension (m3u8, mp4, mp3, flac,
opus, mkv, webm, …). Fixes the "metadata shows then stops" pattern
where we were labeling .m3u8 URLs as video/mp4 and the receiver
refused to play them.
- Queue advance fixed: get_status() is now called without a media
session id (None). Chromecast invalidates the previous session id
the instant playback ends, so polling with Some(id) returned an
empty list and we never saw the FINISHED signal. Empty entries
after having been Playing is now treated as end-of-track too.
- Idle-with-error is also treated as end-of-track so a single bad
stream can't hang the whole queue.
Streams:
- No more forced mp3/mp4 URLs. BaseItem now carries `container`
(fetched via Fields=Container,MediaSources), and stream_url(Direct)
uses it: FLAC stays .flac, MKV stays .mkv, Opus stays .opus.
Static=true keeps Jellyfin from unnecessarily transcoding.
- Both mpv and Chromecast now default to Direct; Chromecast decodes
H.264/MP3/AAC/FLAC/Opus/Vorbis/WebM/WAV natively so this is faster
and more reliable than the old HLS pipeline. `--hls` still forces
transcoding for edge codecs.
Release / packaging:
- .github/workflows/release.yml — cross-arch matrix for
linux amd64/aarch64 and darwin amd64/aarch64. Builds tarballs
(with checksums), .deb for both Linux arches, and .rpm for x86_64.
Publishes a GitHub release on `v*` tags and pushes .deb/.rpm to
Gemfury when FURY_TOKEN + FURY_ACCOUNT secrets are set.
- dist/debian/{amd64,arm64}/DEBIAN/control and dist/rpm/amd64/fin.spec
declare `mpv` as a runtime dependency so `apt install fin` /
`dnf install fin` pull it in automatically.
Docs:
- README: brew tap, apt/dnf via GitHub release AND via Gemfury repo,
Arch source install, prebuilt tarballs.
- Preview screenshot reference at .github/assets/preview.png.
