feat: make the pipeline work with Program and AgentSpeak

ref: N25B-429

src/control_backend/agents/bdi/belief_collector_agent.py

@@ -101,7 +101,7 @@ class BDIBeliefCollectorAgent(BaseAgent):
             :return: A Belief object if the input is valid or None.
             """
             try:
-                return Belief(name=name, arguments=arguments)
+                return Belief(name=name, arguments=arguments, replace=name == "user_said")
             except ValidationError:
                 return None