Monte Carlo chart no longer renders as a flat line

The Monte Carlo chart was technically correct but visually useless: a couple of outlier paths dragged the Y-axis to such an extreme range that the interquartile band — the part that actually matters — was compressed into a flat horizontal smear.

The Y-axis is now clamped to the 5th–95th percentile of simulated paths. Outliers are still drawn (clipped to the chart edge with a subtle marker), but the IQR band, median path, and your realised equity curve are all clearly visible. The summary stats below the chart are unchanged — only the visualisation was off.

The bug had been there since we shipped the Monte Carlo panel. The summary numbers were always right, which is partly why nobody caught it sooner.