Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-04-11T06:33:32","request-id":"b896b56e-bda5-4f6a-a09b-152da422d7da","client-request-id":"b896b56e-bda5-4f6a-a09b-152da422d7da"}}}"