Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-09T08:46:33","request-id":"b658d988-15b7-4b7d-b680-34efa91ec54e","client-request-id":"b658d988-15b7-4b7d-b680-34efa91ec54e"}}}"