Case C-398/24, Pome: Judgment of the Court (Sixth Chamber) of 30 October 2025 (request for a preliminary ruling from the Riigikohus – Estonia) – A v B (Reference for a preliminary ruling – Judicial cooperation in civil and commercial matters – Jurisdiction and recognition and enforcement of judgments in civil and commercial matters – Regulation (EU) No 1215/2012 – Article 25(1) – Agreement conferring jurisdiction – Agreement null and void as to its substantive validity under the law of the Member State of the court seised of the case – Concept)