백그라운드 비동기 추론 & WorkManager 배터리 최적화

class GalleryAiTaggingWorker(
    appContext: Context,
    params: WorkerParameters
) : CoroutineWorker(appContext, params) {

    override suspend fun doWork(): Result = withContext(Dispatchers.Default) {
        try {
            val unclassifiedPhotos = fetchUnclassifiedPhotos()
            for (photo in unclassifiedPhotos) {
                if (isStopped) return@withContext Result.retry()
                classifyPhoto(photo)
            }
            Result.success()
        } catch (e: Exception) {
            Result.retry()
        }
    }
}