/**
 * Configuration management
 * Externalizes configuration from environment variables and config files
 */
export interface AppConfig {
    appName: string;
    appVersion: string;
    environment: 'development' | 'staging' | 'production';
    port?: number;
    institutionBIC: string;
    institutionName: string;
    institutionCountry: string;
    reportingThresholdUSD: number;
    amlStructuringThresholdUSD: number;
    amlStructuringWindowDays: number;
    iofRateInbound: number;
    iofRateOutbound: number;
    fxRateProvider: 'hardcoded' | 'central-bank' | 'bloomberg' | 'reuters' | 'xe';
    fxRateCacheTTL: number;
    databaseUrl?: string;
    databasePoolSize?: number;
    logLevel: 'debug' | 'info' | 'warn' | 'error' | 'fatal';
    logFormat: 'json' | 'text';
    enableAuth: boolean;
    sessionSecret?: string;
    jwtSecret?: string;
    bcbReportingEnabled: boolean;
    bcbReportingApiUrl?: string;
    bcbReportingApiKey?: string;
    auditRetentionDays: number;
    auditAutoDelete: boolean;
}
/**
 * Load configuration from environment variables
 */
export declare function loadConfig(): AppConfig;
/**
 * Validate configuration
 */
export declare function validateConfig(config: AppConfig): {
    valid: boolean;
    errors: string[];
};
/**
 * Get default configuration (for development)
 */
export declare function getDefaultConfig(): AppConfig;
/**
 * Get configuration singleton
 */
export declare function getConfig(): AppConfig;
/**
 * Reset configuration (useful for testing)
 */
export declare function resetConfig(): void;
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