feat: add root path handler for health check

esm/mcp_output/mcp_plugin/mcp_service.py

@@ -260,4 +260,9 @@ def create_app():
     Returns:
         FastMCP: MCP service instance.
     """
+    # Add root path handler for health check
+    @mcp.app.get("/")
+    async def root():
+        return {"status": "ok", "service": "Code2MCP-esm", "transport": "http"}
+    
     return mcp