Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-24T23:43:34","request-id":"0b0b02e0-5856-4b98-8986-c4eb69aa5c67","client-request-id":"0b0b02e0-5856-4b98-8986-c4eb69aa5c67"}}}"