refactor: standardize portfolio manager, five-tier rating scale, fix analyst status tracking

tradingagents/graph/conditional_logic.py

@@ -59,7 +59,7 @@ class ConditionalLogic:
         if (
             state["risk_debate_state"]["count"] >= 3 * self.max_risk_discuss_rounds
         ):  # 3 rounds of back-and-forth between 3 agents
-            return "Risk Judge"
+            return "Portfolio Manager"
         if state["risk_debate_state"]["latest_speaker"].startswith("Aggressive"):
             return "Conservative Analyst"
         if state["risk_debate_state"]["latest_speaker"].startswith("Conservative"):