Case T-218/24: Judgment of the General Court of 21 January 2026 – DT v Eulex Kosovo (Arbitration clause – Common foreign and security policy – International civilian staff of EU international missions – Consecutive fixed-term contracts – Termination of the applicant’s contract – Right to be heard – Obligation to state reasons – Principle of sound administration – Duty to have regard for the welfare of staff – Misuse of powers – Equal treatment