refactor: Simplify trading_plans table structure with TinyLog engine

src/trading/trading_plan.py

@@ -111,9 +111,9 @@ def create_trading_plan_table():
             max_portfolio_risk Float64,
             adjustments_for_drawdown String,
             risk_controls String,
-            win_rate Float64 DEFAULT 0,
-            average_return_per_trade Float64 DEFAULT 0,
-            profit_factor Float64 DEFAULT 0,
+            win_rate Float64,
+            average_return_per_trade Float64,
+            profit_factor Float64,
             historical_backtest_results String,
             real_trade_performance String,
             improvements_needed String,
@@ -125,8 +125,7 @@ def create_trading_plan_table():
             fundamental_criteria String,
             options_strategy_details String
         ) 
-        ENGINE = MergeTree
-        PRIMARY KEY (id)
+        ENGINE = TinyLog
         """
         client.execute(query)