Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-05T04:32:02","request-id":"b14e623e-a38a-492b-b032-60e20d47c939","client-request-id":"b14e623e-a38a-492b-b032-60e20d47c939"}}}"