/**
 * DBCore Middleware for resolving BlobRefs on read
 *
 * This middleware intercepts read operations and resolves any BlobRefs
 * found in objects marked with _hasBlobRefs.
 *
 * Important: Avoids async/await to preserve Dexie's Promise.PSD context.
 * Uses Dexie.waitFor() only for explicit rw transactions to keep them alive.
 * For readonly or implicit transactions, resolves directly (no waitFor needed).
 *
 * Resolved blobs are persisted via db.blobDownloadTracker.enqueueSave(),
 * which internally uses a queue that runs in a fresh JS task to completely
 * isolate from Dexie's transaction context. Each blob is saved atomically
 * using Table.update() with its keyPath to avoid race conditions with other
 * property changes.
 *
 * Blob downloads use Authorization header (same as sync) via the server
 * proxy endpoint: GET /blob/{ref}
 */
import { DBCore, Middleware } from 'dexie';
import { DexieCloudDB } from '../db/DexieCloudDB';
export declare function createBlobResolveMiddleware(db: DexieCloudDB): Middleware<DBCore>;