add analyst execution planning and timing hooks

tradingagents/graph/trading_graph.py

@@ -119,6 +119,7 @@ class TradingAgentsGraph:
             self.invest_judge_memory,
             self.risk_manager_memory,
             self.conditional_logic,
+            analyst_concurrency_limit=self.config.get("analyst_concurrency_limit", 1),
         )
 
         self.propagator = Propagator()