Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-01T09:48:14","request-id":"6f541849-4efc-4267-9c65-e0162be8f273","client-request-id":"6f541849-4efc-4267-9c65-e0162be8f273"}}}"