Fix NetworkOnMainThreadException when syncing library

CLAUDE.md

@@ -15,6 +15,24 @@ Jellyfin music and audiobook player for Android Automotive OS (AAOS) with offlin
 ./gradlew :automotive:installDebug
 ```
 
+## Releasing
+
+1. Bump `versionCode` (increment by 1) and `versionName` (semver) in `automotive/build.gradle.kts`
+2. Commit **only** `automotive/build.gradle.kts` with this exact message format:
+
+```
+Release v<versionName>(<versionCode>)
+
+<Short one-line description of the release>
+
+Full release notes:
+
+- <bullet 1>
+- <bullet 2>
+```
+
+Example: `Release v1.2.2(18)`
+
 - **Min SDK**: 28 (Android 9)
 - **Target SDK**: 36
 - **Compile SDK**: 36

automotive/build.gradle.kts

@@ -14,8 +14,8 @@ android {
         applicationId = "com.chamika.dashtune"
         minSdk = 28
         targetSdk = 36
-        versionCode = 17
-        versionName = "1.2.1"
+        versionCode = 18
+        versionName = "1.2.2"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }

automotive/src/main/java/com/chamika/dashtune/DashTuneSessionCallback.kt

@@ -37,8 +37,10 @@ import com.chamika.dashtune.signin.SignInActivity
 import com.google.common.collect.ImmutableList
 import com.google.common.util.concurrent.Futures
 import com.google.common.util.concurrent.ListenableFuture
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
 import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.withContext
 import kotlinx.coroutines.withTimeoutOrNull
 import org.jellyfin.sdk.api.client.ApiClient
 import org.jellyfin.sdk.api.client.extensions.itemsApi
@@ -416,7 +418,7 @@ class DashTuneSessionCallback(
 
             SYNC_COMMAND -> {
                 return SuspendToFutureAdapter.launchFuture {
-                    val success = repository.sync()
+                    val success = withContext(Dispatchers.IO) { repository.sync() }
                     if (success) {
                         PreferenceManager.getDefaultSharedPreferences(service).edit {
                             putLong("last_sync_timestamp", System.currentTimeMillis())