Function POST

Returns Promise<
    | NextResponse<{ error: string }>
    | NextResponse<
        {
            client: | {
                code: string;
                email: string
                | null;
                id: string;
                name: string;
                phone: string | null;
                type: string;
            }
            | null;
            createdBy: { email: string; id: string; name: string | null }
            | null;
            currency:
                | { code: string; id: string; name: string; symbol: string }
                | null;
            files: {
                createdAt: Date;
                filename: string;
                id: string;
                key: string;
                mimetype: string;
                size: number;
                url: string;
            }[];
            lead: | {
                code: string;
                companyName: string
                | null;
                email: string | null;
                id: string;
                name: string;
                phone: string | null;
            }
            | null;
            lines: (
                {
                    finishedProduct: | {
                        code: string;
                        description: (...)
                        | (...);
                        id: string;
                        name: string;
                    }
                    | null;
                    tax: { code: string; id: string; name: string; rate: number }
                    | null;
                } & {}
            )[];
            opportunity: | {
                id: string;
                name: string;
                number: string;
                stage: BusinessOpportunityStage;
                status: OpportunityStatus;
            }
            | null;
            seriesPriceTiers: {}[];
        } & {},
    >,
>