Update app.py

app.py

@@ -2,13 +2,12 @@ import streamlit as st
 from search_utils import OptimizedSemanticSearch
 import logging
 import time
-import os
-import sys
 import psutil
 from urllib.parse import quote
 import threading
 import re
 from pathlib import Path
+from urllib.parse import urlparse
 
 # Configure logging
 logging.basicConfig(
@@ -188,7 +187,7 @@ def main():
 
         if st.button("🔄 Refresh System"):
             st.cache_resource.clear()
-            st.rerun()
+            st.experimental_rerun()
 
 if __name__ == "__main__":
-    main()
+    main()