/**
 * Settings Manager - Persist and load scheduler configuration
 * Supports JSON config files and DXT extension configs
 */
import { SchedulerConfig } from '../../types/scheduler.js';
export declare class SettingsManager {
    private configFile;
    private config;
    private initialized;
    private static readonly DEFAULTS;
    constructor();
    /**
     * Initialize paths and configuration on first use
     */
    private ensureInitialized;
    /**
     * Load configuration from file, or create default if missing
     */
    private loadConfig;
    /**
     * Save configuration to file
     */
    private saveConfig;
    /**
     * Get current configuration
     */
    getConfig(): SchedulerConfig;
    /**
     * Update configuration (partial update)
     */
    updateConfig(updates: Partial<SchedulerConfig>): void;
    /**
     * Reset to default configuration
     */
    resetToDefaults(): void;
    /**
     * Load configuration from DXT extension config (for Claude Desktop)
     * This allows .dxt extensions to specify scheduler retention policies
     */
    static loadFromDXTConfig(dxtConfig: any): Partial<SchedulerConfig>;
}
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