Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-11T02:36:51","request-id":"d1e00958-c38d-4bff-800d-f935c1f59eb7","client-request-id":"d1e00958-c38d-4bff-800d-f935c1f59eb7"}}}"