Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-05-06T04:31:35","request-id":"869fba3a-6309-49af-b127-38b9eda0c850","client-request-id":"869fba3a-6309-49af-b127-38b9eda0c850"}}}"