fixes, old way to handle strategies

strategies/ma_cross_strategy.py

@@ -7,8 +7,10 @@ class MaCrossStrategy(BaseStrategy):
     A strategy based on a fast Simple Moving Average (SMA) crossing
     a slow SMA.
     """
-    def __init__(self, strategy_name: str, params: dict, log_level: str):
-        super().__init__(strategy_name, params)
+    # --- FIX: Changed 3rd argument from log_level to trade_signal_queue ---
+    def __init__(self, strategy_name: str, params: dict, trade_signal_queue):
+        # --- FIX: Passed trade_signal_queue to the parent class ---
+        super().__init__(strategy_name, params, trade_signal_queue)
         self.fast_ma_period = self.params.get('short_ma') or self.params.get('fast') or 0
         self.slow_ma_period = self.params.get('long_ma') or self.params.get('slow') or 0
 
@@ -26,4 +28,3 @@ class MaCrossStrategy(BaseStrategy):
         df.loc[df['fast_sma'] < df['slow_sma'], 'signal'] = -1
         
         return df
-