feat(song-info): show absolute file path on Navidrome via native API (#504)

* feat(song-info): show absolute file path on Navidrome via native API

Subsonic's `getSong.view` returns at most a relative path (or none on
Navidrome), so the Path row in the Song Info modal stayed empty for
most users. Feishin and the Navidrome web client surface the full
server-side path by hitting Navidrome's native `/api/song/{id}` instead.

Added an `nd_get_song_path` Tauri command that logs in to the native
API with the active server's credentials, fetches the song, and returns
the `path` string. Wired it into `SongInfoModal`: the Subsonic
`getSong` call still drives the rest of the dialog, and the native call
runs in parallel only when the active server's identity is
"navidrome". When it returns a path, that absolute path replaces the
relative Subsonic value; native-API failures are silent and the modal
falls back to whatever Subsonic provided.

No token cache yet — the modal is opened occasionally enough that one
fresh login per call is fine.

Closes discussion #479.

* docs: changelog entry for PR #504

Logs the Navidrome native-API absolute file path support for the
Song Info dialog in v1.46.0 "## Added".

* docs: settings contributor entry for PR #504, drop competitor mention

Adds the song-info absolute path bullet to Psychotoxical's contributors
list in Settings, and rewords the existing CHANGELOG entry so neither
text references competing clients.

src/pages/Settings.tsx

@@ -371,6 +371,7 @@ const CONTRIBUTORS = [
       'Help page: full rewrite with 45 focused entries across 10 themed sections (Getting Started / Playback & Queue / Audio Tools / Library & Discovery / Lyrics / Sharing & Social / Personalization / Power User / Offline & Sync / Integrations & Troubleshooting), in-page live search with case-insensitive substring matching and auto-expand on hits, translated to all 8 locales (PR #485)',
       'Library: Browse by Composer — native-API role listing for classical libraries, library-scoped queries, composer as a first-class share entity (PR #487)',
       'Home: "Because you listened" recommendation rail — Last.fm-anchored similar-artist surfacing with round-robin anchor rotation per server (PR #489)',
+      'Song Info: absolute file path on Navidrome via native /api/song/{id} — Subsonic only ever returned a relative path (or none on Navidrome), the native endpoint surfaces the full server-side location (PR #504)',
     ],
   },
 ] as const;