Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-04-27T19:47:23","request-id":"7b0672a8-2546-4a80-81dc-ddc149515c73","client-request-id":"7b0672a8-2546-4a80-81dc-ddc149515c73"}}}"