/**
 * NIP-46 bunker sign-in flows for dashboard auth.
 *
 * Two entry points are exposed:
 *   - startNostrConnect():   generates an ephemeral keypair + nostrconnect://
 *                            URI, listens on the configured relays for an
 *                            Amber/bunker connect response, then requests a
 *                            signed NIP-98 event. Progress is polled over
 *                            HTTP via the session id (ephemeral pubkey).
 *   - signWithBunkerUrl():   takes a bunker:// URI and runs the connect +
 *                            sign_event flow synchronously with a 30s cap.
 *
 * In both cases the remote signer returns a kind-27235 event whose pubkey
 * must match the configured station owner npub — verifyNip98() enforces
 * that in the verify endpoint.
 */
export type BunkerStatus = 'waiting' | 'ok' | 'timeout' | 'error';
export interface BunkerSession {
    ephemeralPubkey: string;
    nostrconnectUri: string;
    relays: string[];
    createdAt: number;
    expiresAt: number;
    status: BunkerStatus;
    error?: string;
    signedEvent?: any;
    challenge?: string;
}
export declare function getBunkerSession(eph: string): BunkerSession | null;
export declare function consumeBunkerSession(eph: string): BunkerSession | null;
export interface NostrConnectStart {
    ephemeralPubkey: string;
    nostrconnectUri: string;
    qrSvg: string;
    relays: string[];
    expiresAt: number;
}
export declare function startNostrConnect(challenge: string, dashboardUrl: string): Promise<NostrConnectStart>;
export interface BunkerUrlResult {
    ok: boolean;
    signedEvent?: any;
    error?: string;
}
export declare function signWithBunkerUrl(bunkerUrl: string, challenge: string, dashboardUrl: string): Promise<BunkerUrlResult>;