import type { ResolvedConfig } from './config.js';
export interface StoredFile {
    filename: string;
    path: string;
    sizeBytes: number;
}
/**
 * Sanitize a filename to alphanumeric, dots, and dashes only.
 */
export declare function sanitizeFilename(name: string): string;
/**
 * Derive the .beacon directory path from the database URL.
 * e.g. "file:.beacon/beacon.db" → ".beacon"
 */
export declare function extractDirFromDbUrl(url: string): string;
/**
 * Store a file to disk under .beacon/storage/{taskId}/{filename}.
 * Returns metadata about the stored file.
 * Throws if the file exceeds the 5MB size limit.
 */
export declare function storeFile(config: ResolvedConfig, taskId: string, file: {
    name: string;
    arrayBuffer(): Promise<ArrayBuffer>;
    size: number;
}): Promise<StoredFile>;
//# sourceMappingURL=storage.d.ts.map