Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-09T00:27:03","request-id":"69a8f02c-11f3-441a-94bd-7ba07d00c40d","client-request-id":"69a8f02c-11f3-441a-94bd-7ba07d00c40d"}}}"