fix(prompts): put the current date at the top of analyst prompts

The date hint sat at the end of each analyst's system prompt, after a long
indicator block, so weaker models anchored to their training cutoff when
generating tool-call date ranges. Lead each prompt with it instead.

tradingagents/agents/analysts/news_analyst.py

@@ -40,8 +40,9 @@ def create_news_analyst(llm):
                     " will help where you left off. Execute what you can to make progress."
                     " If you or any other assistant has the FINAL TRANSACTION PROPOSAL: **BUY/HOLD/SELL** or deliverable,"
                     " prefix your response with FINAL TRANSACTION PROPOSAL: **BUY/HOLD/SELL** so the team knows to stop."
-                    " You have access to the following tools: {tool_names}.\n{system_message}"
-                    "For your reference, the current date is {current_date}. {instrument_context}",
+                    " You have access to the following tools: {tool_names}."
+                    " Today's date is {current_date}; treat it as 'now' for all analysis and tool-call date ranges. {instrument_context}\n"
+                    "{system_message}",
                 ),
                 MessagesPlaceholder(variable_name="messages"),
             ]