Added parameter sweep tool that tested 320 combinations across SMA periods,
trade sizes, and RSI filters. Best result: SMA 50/100 on M15 with RSI 80/20
(Sharpe 5.69, 49% win rate). Updated backtester with RSI overbought/oversold
signal filtering and config to match optimal parameters.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>