/**
 * Localhost callback server for OAuth flow
 *
 * Flow:
 * 1. CLI starts local HTTP server on random port
 * 2. Browser redirects to localhost with token
 * 3. Server captures token and shuts down
 */
interface CallbackResult {
    token: string;
    error?: string;
}
/**
 * Start a localhost server to receive OAuth callback
 */
export declare function startCallbackServer(timeout?: number): Promise<{
    port: number;
    waitForCallback: () => Promise<CallbackResult>;
    close: () => void;
}>;
export {};
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