Attach mcp stdio box to agent

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Signed-off-by: mudler <mudler@localai.io>

core/agent/agent.go

@@ -241,6 +241,7 @@ func (a *Agent) Stop() {
 	a.Lock()
 	defer a.Unlock()
 	xlog.Debug("Stopping agent", "agent", a.Character.Name)
+	a.closeMCPSTDIOServers()
 	a.context.Cancel()
 }