test(mcp): improve Replit config and add workflow for interactive MCP integration test

.replit

@@ -24,23 +24,6 @@ mode = "sequential"
 task = "shell.exec"
 args = "python -m pytest tests/tools/test_mcp_integration.py::test_interactive_multi_agent_mcp -s"
 
-[[workflows.workflow]]
-name = "Test MCP Integration"
-author = 13983571
-mode = "sequential"
-
-[[workflows.workflow.tasks]]
-task = "shell.exec"
-args = "python examples/mcp_example/math_server.py & "
-
-[[workflows.workflow.tasks]]
-task = "shell.exec"
-args = "sleep 2"
-
-[[workflows.workflow.tasks]]
-task = "shell.exec"
-args = "python examples/mcp_example/test_integration.py"
-
 [[workflows.workflow]]
 name = "Run MCP Test"
 author = 13983571