Wire up playback reporting, fix duration flash, hide video from audio mini player

Playback reporting (position sync / resume-on-another-device):
- player_configure_jellyfin now builds a PlaybackReporter sharing the player
  controller's Arc, so Start/Progress/Stopped actually reach Jellyfin on every
  auth path (login/restore/reauth); previously they never did.
- The PlaybackReporterWrapper now shares the same Arc the controller and MPV
  progress loop report through, instead of a dead parallel Option.
- Android position callbacks now emit throttled progress reports (30s/item),
  mirroring the MPV backend.

Duration flash on pause:
- resolveDuration() prefers the live store duration for the already-loaded
  track over the runTimeTicks estimate, so pausing no longer clobbers the
  slider's max to 0 when runTimeTicks is missing.

Video leaking into audio mini player:
- isVideoItem() also checks the backend PlayerMediaItem mediaType
  discriminator, so a video started via player_play_item (no Jellyfin `type`,
  mediaType "video") no longer surfaces in the audio mini player.

Middle-truncation of long media names:
- New truncateMiddle util applied to track/episode/card/mini-player titles so
  distinguishing tails (episode numbers, suffixes) stay visible.

Adds regression tests for the duration and mini-player fixes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src-tauri/src/commands/player/mod.rs

@@ -1826,9 +1826,10 @@ pub async fn player_get_cache_config(
 #[specta::specta]
 pub async fn player_configure_jellyfin(
     player: State<'_, PlayerStateWrapper>,
+    db: State<'_, DatabaseWrapper>,
     server_url: String,
     access_token: String,
-    _user_id: String,
+    user_id: String,
     device_id: String,
 ) -> Result<(), String> {
     log::info!("[PlayerCommand] Configuring Jellyfin client for playback reporting");
@@ -1839,12 +1840,31 @@ pub async fn player_configure_jellyfin(
         device_id,
     };
 
-    let client = JellyfinClient::new(config)?;
+    // Legacy client (used for remote session control / casting).
+    let client = JellyfinClient::new(config.clone())?;
+
+    // Build the PlaybackReporter the player and backends (MPV + ExoPlayer)
+    // actually report through. Without this, Start/Progress/Stopped never reach
+    // Jellyfin, so playback position never syncs and you can't resume on another
+    // device. The reporter shares the player controller's Arc, so populating it
+    // here lights up reporting on both desktop and Android, on every auth path
+    // that configures the player (login / restore / reauth).
+    let db_service = {
+        let database = db.0.lock().map_err(|e| e.to_string())?;
+        Arc::new(database.service())
+    };
+    let reporter_client = JellyfinClient::new(config)?;
+    let reporter = crate::playback_reporting::PlaybackReporter::new(
+        db_service,
+        Arc::new(TokioMutex::new(Some(reporter_client))),
+        user_id,
+    );
 
     let controller = player.0.lock().await;
     controller.set_jellyfin_client(Some(client));
+    controller.set_playback_reporter(Some(reporter)).await;
 
-    log::info!("[PlayerCommand] Jellyfin client configured successfully");
+    log::info!("[PlayerCommand] Jellyfin client and playback reporter configured successfully");
     Ok(())
 }
 
@@ -1858,8 +1878,9 @@ pub async fn player_disable_jellyfin(
 
     let controller = player.0.lock().await;
     controller.set_jellyfin_client(None);
+    controller.set_playback_reporter(None).await;
 
-    log::info!("[PlayerCommand] Jellyfin client disabled");
+    log::info!("[PlayerCommand] Jellyfin client and playback reporter disabled");
     Ok(())
 }