fix: add config parameter to PortfolioAnalyzer constructor

Required by the configurable log directory and config passthrough
from TradingAgentsGraph that were applied via GitHub suggestions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tradingagents/graph/portfolio_analysis.py

@@ -16,13 +16,15 @@ class PortfolioAnalyzer:
     owns the portfolio-level prompt, comparison logic, and logging.
     """
 
-    def __init__(self, deep_thinking_llm: BaseChatModel):
+    def __init__(self, deep_thinking_llm: BaseChatModel, config: Dict[str, Any]):
         """Initialize with the deep thinking LLM for comparative analysis.
 
         Args:
             deep_thinking_llm: The LLM instance used for the portfolio summary.
+            config: The configuration dictionary for the application.
         """
         self.deep_thinking_llm = deep_thinking_llm
+        self.config = config
 
     def analyze(
         self,