/**
 * Upload resolver for the Constructive upload plugin.
 *
 * Reads CDN/S3/MinIO configuration from environment variables (via getEnvOptions)
 * and streams uploaded files to the configured storage backend.
 *
 * Lazily initializes the S3 streamer on first upload to avoid requiring
 * env vars at module load time.
 *
 * ENV VARS:
 *   BUCKET_PROVIDER  - 'minio' | 's3' (default: 'minio')
 *   BUCKET_NAME      - bucket name (default: 'test-bucket')
 *   AWS_REGION       - AWS region (default: 'us-east-1')
 *   AWS_ACCESS_KEY   - access key (default: 'minioadmin')
 *   AWS_SECRET_KEY   - secret key (default: 'minioadmin')
 *   CDN_ENDPOINT     - S3-compatible endpoint (default: 'http://localhost:9000')
 */
import type { UploadFieldDefinition } from 'graphile-upload-plugin';
/**
 * Upload field definitions for Constructive's three upload domain types.
 *
 * These match columns whose PostgreSQL type is one of the domains defined
 * in constructive-db/pgpm-modules/types/:
 *
 * - `image`      (public schema) — jsonb domain for images with versions
 * - `upload`     (public schema) — jsonb domain for generic file uploads
 * - `attachment` (public schema) — text domain for simple URL attachments
 *
 * These domain types are part of the platform's core type system, deployed
 * to every application database. They rarely change, so this config is stable.
 */
export declare const constructiveUploadFieldDefinitions: UploadFieldDefinition[];