export declare class AppService {
    private readonly logger;
    private readonly startTime;
    private readonly congigService;
    constructor();
    private formatUptime;
    private checkDatabaseHealth;
    getSystemStatus(): Promise<{
        service: string;
        version: string;
        description: string;
        status: string;
        uptime: string;
        health: {
            database: string;
            server: string;
            load: number;
        };
        documentation: string;
        links: {
            self: string;
            privacyPolicy: string;
        };
        contact: {
            name: string;
            email: string;
            url: string;
        };
        environment: string;
    }>;
}