Update chat_app.py

Please allow small for fixing mcp run up

chat_app.py

@@ -1,6 +1,12 @@
 import gradio as gr
 from Client.mcp_client import MCPClientExcelRAG
 from test import run_agent  # ← import agent entry point
+import subprocess
+import sys
+import time 
+
+subprocess.Popen([sys.executable, "-m", "Server.mcp_server"])
+time.sleep(5)
 
 # Initialize MCP client
 client = MCPClientExcelRAG()