K-Volatility Breakout

Keep lookback at 1 but change the box range calculation from prevClose ± range*0.5 to prevClose ± range*0.4 (tighter box). The current 50% retracement of previous range may place breakout levels too far from close, missing momentum. A 40% box tightens entry criteria to capture stronger breakouts earlier, potentially improving entry quality and Sharpe by entering only on more decisive moves.