Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-13T04:44:32","request-id":"c3113633-c2e3-476f-9333-b40a770bbb00","client-request-id":"c3113633-c2e3-476f-9333-b40a770bbb00"}}}"