Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-16T19:04:03","request-id":"3194f089-98df-4564-b168-23e927444d27","client-request-id":"3194f089-98df-4564-b168-23e927444d27"}}}"