/**
 * Auto-Execution Engine
 *
 * Automatically executes Steps sequentially.
 *
 * Key features:
 * 1. Sequential execution: Executes Steps in number order
 * 2. Context sharing: All steps share the same context object
 * 3. Error handling: Stops immediately when error occurs during Step execution
 * 4. Transaction integration: Integrates with Transaction Manager for transaction management
 * 5. Execution logging: Records logs before and after each step execution
 */
import { Context, AutoExecutionOptions } from './types';
/**
 * Auto-Execution Engine class
 */
export declare class AutoExecutor {
    private readonly options;
    private readonly stats;
    private readonly totalStartTime;
    /**
     * Debug mode caching (performance optimization)
     * Check environment variable only once at class load instead of every step
     *
     * Logging policy (simple rules):
     *
     * 1. Test environment: Always OFF (for clean test output)
     *    - NODE_ENV=test → No logs
     *
     * 2. Explicit control (highest priority):
     *    - FEATURE_LOGS=true → Force ON (any environment except test)
     *    - FEATURE_LOGS=false → Force OFF (any environment)
     *
     * 3. Default behavior (when FEATURE_LOGS not set):
     *    - development → ON (helpful for debugging)
     *    - production → OFF (clean production logs)
     *
     * Examples:
     * - Local dev: (no env vars) → Logs ON
     * - Local dev (quiet): FEATURE_LOGS=false → Logs OFF
     * - Production debug: FEATURE_LOGS=true → Logs ON
     * - Production normal: (no env vars) → Logs OFF
     */
    private static readonly isDebugMode;
    constructor(options: AutoExecutionOptions);
    /**
     * Execute all Steps sequentially
     *
     * @returns Completed Context (pure business data only)
     * @throws {FeatureError} When error occurs during Step execution
     */
    execute(): Promise<Context>;
    /**
     * Output Feature start header
     */
    private logHeader;
    /**
     * Output Step detail log
     */
    private logStep;
    /**
     * Output overall Summary
     */
    private logSummary;
    /**
     * Clone Context (deep copy)
     */
    private cloneContext;
    /**
     * Format Context changes (before → after)
     */
    private formatContextDiff;
    /**
     * Format Context for display
     */
    private formatContextForDisplay;
    /**
     * Format object to string (with length limit)
     */
    private formatObject;
}
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