Case C-633/24, Sovisso: Judgment of the Court (Sixth Chamber) of 22 January 2026 (request for a preliminary ruling from the Corte suprema di cassazione – Italy) – F.F. v Istituto nazionale della previdenza sociale (INPS) (Reference for a preliminary ruling – Social security – Migrant workers – Regulation (EC) No 883/2004 – Equal treatment – Aggregation of periods – Article 58 – Agreement between the European Community and its Member States, of the one part, and the Swiss Confederation, of the other, on the free movement of persons – Invalidity benefits – Supplement in order to guarantee receipt of the statutory minimum invalidity benefit – Stricter conditions relating to the contribution period for workers who have exercised their right to freedom of movement)