Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-10T06:03:35","request-id":"c9d94549-2a23-47dd-94bc-b27c2e5d70ef","client-request-id":"c9d94549-2a23-47dd-94bc-b27c2e5d70ef"}}}"