/**
 * Login Command
 *
 * Authenticates users with their SpecForge API key.
 * Supports both interactive (masked input) and non-interactive (--api-key flag) modes.
 */
import { Command } from 'commander';
/**
 * Login command options
 */
export interface LoginOptions {
    /** API key provided via --api-key flag */
    apiKey?: string;
    /** Force re-authentication even if already logged in */
    force?: boolean;
}
/**
 * User information returned from API validation
 */
export interface UserInfo {
    /** User's email address */
    email: string;
    /** User's display name */
    name?: string;
    /** User ID */
    userId?: string;
}
/**
 * Login command implementation
 *
 * @param options - Command options
 */
export declare function loginAction(options: LoginOptions): Promise<void>;
/**
 * Register login command with Commander
 *
 * @param program - Commander program instance
 */
export declare function registerLoginCommand(program: Command): void;
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