Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-04-23T18:47:37","request-id":"a24c9d26-3bb8-4785-8a54-376381ead767","client-request-id":"a24c9d26-3bb8-4785-8a54-376381ead767"}}}"