/**
 * A2 — in-memory scanner_id → (runtime, scanner) registry.
 *
 * A5 (supervisor) populates this at launch; until then it is empty and every
 * POST is rejected as unknown scanner_id.
 *
 * Default implementation: Map-backed. A6 will not replace this interface;
 * it will only add durable persistence behind it.
 */
import type { ExternalFieldDefinition } from "../../scanners/scanner-definition.js";
export interface ScannerRegistryEntry {
    scannerId: string;
    runtimeId: string;
    scannerName: string;
    wallet: string;
    fields: Record<string, ExternalFieldDefinition>;
}
export interface ScannerRegistry {
    resolve(scannerId: string): ScannerRegistryEntry | undefined;
    register(entry: ScannerRegistryEntry): void;
    unregister(scannerId: string): void;
    /** All live entries — lets a reader resolve scannerName → current (ephemeral) scanner_id. */
    entries(): ScannerRegistryEntry[];
}
/**
 * Default Map-backed implementation of ScannerRegistry.
 *
 * Zombie fence: resolve(unknown or unregistered) returns undefined.
 * When A5 relaunches a scanner, it unregisters the old id, so leftover
 * processes carrying the old id are refused.
 */
export declare class MapScannerRegistry implements ScannerRegistry {
    private store;
    resolve(scannerId: string): ScannerRegistryEntry | undefined;
    register(entry: ScannerRegistryEntry): void;
    unregister(scannerId: string): void;
    entries(): ScannerRegistryEntry[];
}
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