Constant ENEMY_EARLY_BUMP

pub const ENEMY_EARLY_BUMP: f64 = 1.0;

Early-game stat-check bump strength. 1.0 = OFF, deliberately: the hand-made→formula transition already lands the early chapters taut on its own, and playtesting showed a bump here makes stages 1-3..1-5 feel punishing (“cleared by luck”) — so the geometric step runs cleanly through the early game instead. Tune via OVERLORD_BAL_ENEMY_EARLY_BUMP.