Refactor code structure for improved readability and maintainability

src/app.py

@@ -1,13 +1,12 @@
 import atexit
 import configparser
-import json  # For handling potential error JSON in stream
+import json
 import logging
 
 import streamlit as st
 
-# Updated imports
 from llm_client import LLMClient
-from src.custom_mcp.manager import SyncMCPManager  # Updated import path
+from src.custom_mcp.manager import SyncMCPManager
 
 # Configure logging for the app
 logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(name)s - %(levelname)s - %(message)s")