Merge #487 — analyst execution planning and timing hooks

refactor(graph): add analyst execution planning and timing hooks

tradingagents/graph/trading_graph.py

@@ -114,6 +114,7 @@ class TradingAgentsGraph:
             self.deep_thinking_llm,
             self.tool_nodes,
             self.conditional_logic,
+            analyst_concurrency_limit=self.config.get("analyst_concurrency_limit", 1),
         )
 
         self.propagator = Propagator(