Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-16T21:40:19","request-id":"2be291b9-6447-4183-b156-8a71b9b72bf2","client-request-id":"2be291b9-6447-4183-b156-8a71b9b72bf2"}}}"