Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2025-12-04T18:44:12","request-id":"54828f05-a8aa-4e87-b5eb-29643efee49a","client-request-id":"54828f05-a8aa-4e87-b5eb-29643efee49a"}}}"