Added an exposure multiplier in Settings
In Settings, the Exposure section replaces the risk slider with a multiplier: quick presets ×0.5, ×1, ×2, ×5 and ×10, or a precise value from ×0.1 to ×10, with ×1 recommended. At ×1 you follow the strategy as is; above it you amplify both potential and risk. A monthly and yearly projection updates live with your choice.