Case T-770/21: Judgment of the General Court of 5 July 2023 — OC v EEAS (Civil service — Officials — Staff of the EEAS — Psychological harassment — Article 12a of the Staff Regulations — Request for assistance — Refusal of the request — Article 24 of the Staff Regulations — Obligation to state reasons — Right to be heard — Concept of ‘psychological harassment’ — Manifest error of assessment — Duty to have regard for the welfare of staff)