Function GET

Returns Promise<
    | NextResponse<{ error: string }>
    | NextResponse<
        {
            overview: {
                total: number;
                active: number;
                inactive: number;
                customers: number;
                prospects: number;
                withEmail: number;
                withPhone: number;
                recent: number;
            };
            distribution: {
                byType: { customers: number; prospects: number };
                byStatus: { active: number; inactive: number };
                byCurrency: { currencyId: string | null; count: number }[];
            };
            trends: { monthly: { month: string; count: number }[] };
            topClients: {
                id: string;
                name: string;
                code: string;
                offersCount: number;
            }[];
        },
    >,
>