K-Momentum Trend

Modify the longSignal condition from ta.crossover(rsi, 50) to ta.crossover(rsi, 40) and shortSignal from ta.crossunder(rsi, 50) to ta.crossunder(rsi, 60), while keeping the MA trend filter. This creates more asymmetric entry thresholds that require stronger momentum confirmation in the trend direction—buying only when RSI crosses above 40 in an uptrend (catching stronger oversold bounces) and selling when RSI crosses below 60 in a downtrend. This avoids weak signals near the 50 midpoint and should improve trade quality and Sharpe ratio.