fix: improve maintenance and synchronize live conversations

backend/tests/knowledge/test_enhanced_website_reader.py

@@ -14,10 +14,9 @@ See the License for the specific language governing permissions and
 limitations under the License.
 """
 
-import os
 import socket
 import unittest
-from unittest.mock import patch, MagicMock, Mock
+from unittest.mock import patch
 from bs4 import BeautifulSoup
 import httpx