fix(jellyfin): fix discovery loop, device identity, tray state, and Disc

- Derive device identity from OS hostname; remove legacy configurable client/device fields
- Prevent discovery playback from reloading active item, misreporting pause state, and duplicate overlay restores
- Restart stale tray discovery sessions without re-login when server drops SubMiner cast target
- Sync tray discovery checkbox state on Linux after CLI/startup/remote-session changes
- Stop Discord presence falling back to stream URLs; prime title before tokenized stream loads
- Fix picker library discovery when log level is above info
- Fix config.example.jsonc trailing commas and array formatting

src/main/runtime/jellyfin-client-info-main-deps.ts

@@ -23,6 +23,8 @@ export function createBuildGetJellyfinClientInfoMainDepsHandler(
 ) {
   return (): GetJellyfinClientInfoMainDeps => ({
     getResolvedJellyfinConfig: () => deps.getResolvedJellyfinConfig(),
-    getDefaultJellyfinConfig: () => deps.getDefaultJellyfinConfig(),
+    getHostName: deps.getHostName ? () => deps.getHostName?.() || '' : undefined,
+    defaultClientName: deps.defaultClientName,
+    defaultClientVersion: deps.defaultClientVersion,
   });
 }