Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-23T13:35:35","request-id":"12792cfe-b127-4560-876c-94cfb6d185da","client-request-id":"12792cfe-b127-4560-876c-94cfb6d185da"}}}"