Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-27T10:06:07","request-id":"89973c57-1827-4b5b-a412-596e3578b294","client-request-id":"89973c57-1827-4b5b-a412-596e3578b294"}}}"