/**
 * Configuration loader for BCKB MCP server
 * Supports multiple configuration sources with precedence order
 */
import { ConfigurationLoadResult } from '../types/config-types.js';
export declare class ConfigurationLoader {
    private readonly USER_CONFIG_PATHS;
    private readonly PROJECT_CONFIG_PATHS;
    loadConfiguration(workspaceRoot?: string): Promise<ConfigurationLoadResult>;
    /**
     * Load user-level configuration from home directory or system paths
     */
    private loadUserConfig;
    /**
     * Load project-level configuration from workspace root
     */
    private loadProjectConfig;
    private loadFromFile;
    private loadFromEnvironment;
    private parseEnvironmentValue;
    private setNestedValue;
    private mergeConfigurations;
    private applyEnvironmentOverrides;
    private validateConfiguration;
    private getFileFormat;
    private deepClone;
}
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