Case C-643/23, Agenciart – Management Artístico: Judgment of the Court (Sixth Chamber) of 14 November 2024 (request for a preliminary ruling from the Tribunal da Relação de Lisboa – Portugal) – Agenciart – Management Artístico Lda v CT (Reference for a preliminary ruling – Directive 2011/7/EU – Combating late payment in commercial transactions – Article 2(3) – Concept of an undertaking – Exercise of an independent professional activity – Actor – Agency contract – Order for payment procedure)