Update app.py

web_search_preview --> web_search

app.py

@@ -816,7 +816,7 @@ If a MCP server requires a password input you will use {pwdList[0]}.
 
     response = Client().responses.create(
         model= "gpt-5-mini",      #"gpt-5-mini", "o4-mini",
-        tools=[{ "type": "web_search_preview" },
+        tools=[{ "type": "web_search" },
                 { "type": "code_interpreter", "container": container_id},    #{'type': 'auto'}},
                 { "type": "image_generation", "quality": "medium", "size": "1024x1024"},
             # {"type": "function", "name": "get_distance",