Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-03T19:02:59","request-id":"c582df3b-ad12-463f-acee-49095c09d0ce","client-request-id":"c582df3b-ad12-463f-acee-49095c09d0ce"}}}"