/**
 * Eager Blob Downloader
 *
 * Downloads unresolved blobs in the background when blobMode='eager'.
 * Called after sync completes to prefetch blobs for offline access.
 *
 * Progress is tracked automatically via liveQuery in blobProgress.ts —
 * no manual progress reporting needed here.
 */
import { BehaviorSubject } from 'rxjs';
import { DexieCloudDB } from '../db/DexieCloudDB';
/**
 * Download all unresolved blobs in the background.
 *
 * This is called when blobMode='eager' (default) after sync completes.
 * BlobRef URLs are signed (SAS tokens) so no auth header needed.
 *
 * Each blob is saved atomically using Table.update() to avoid race conditions.
 */
export declare function downloadUnresolvedBlobs(db: DexieCloudDB, downloading$: BehaviorSubject<boolean>, signal?: AbortSignal): Promise<void>;