Case C-820/24, Strominator Elektro: Judgment of the Court (Fifth Chamber) of 4 June 2026 (request for a preliminary ruling from the Bundesverwaltungsgericht – Austria) – Strominator Elektro GmbH v Bundesimmobiliengesellschaft mbH (Reference for a preliminary ruling – Award of public works, public supply and public service contracts – Principles of equal treatment and transparency – Directive 2014/24/EU – Article 72 – Modification of contracts during their term – Concept of contracts during their term – Receipt of the works carried out – Submission of the final invoice – No payment made by the contracting authority)