if stop_date null in config it would use current date

configs/config_default.json

@@ -1,6 +1,6 @@
 {
     "start_date": "2025-03-01",
-    "stop_date": "2025-03-15",
+    "stop_date": null,
     "initial_usd": 10000,
     "timeframes": ["15min"],
     "strategies": [

main.py

@@ -10,10 +10,8 @@ import json
 from cycles.utils.storage import Storage
 from cycles.utils.system import SystemUtils
 from cycles.backtest import Backtest
-from cycles.Analysis.supertrend import Supertrends
 from cycles.charts import BacktestCharts
-from cycles.Analysis.strategies import Strategy
-from cycles.strategies import StrategyManager, create_strategy_manager
+from cycles.strategies import create_strategy_manager
 
 logging.basicConfig(
     level=logging.INFO,
@@ -274,7 +272,10 @@ if __name__ == "__main__":
         exit(1)
 
     start_date = config['start_date']
-    stop_date = config['stop_date']
+    if config['stop_date'] is None:
+        stop_date = datetime.datetime.now().strftime("%Y-%m-%d")
+    else:
+        stop_date = config['stop_date']
     initial_usd = config['initial_usd']
     timeframes = config['timeframes']