Phase 4: Mana Well effects (remaining 7)

src/lib/game/store/computed.ts

@@ -19,12 +19,13 @@ export function getEffectiveSkillLevel(
 }
 
 export function computeMaxMana(
-  state: Pick<GameState, 'skills' | 'prestigeUpgrades' | 'skillUpgrades' | 'skillTiers'>,
+  state: Pick<GameState, 'skills' | 'prestigeUpgrades' | 'skillUpgrades' | 'skillTiers' | 'manaHeartBonus'>,
   effects?: ReturnType<typeof computeEffects>
 ): number {
   const pu = state.prestigeUpgrades;
   const skillTiers = state.skillTiers || {};
   const skillUpgrades = state.skillUpgrades || {};
+  const manaHeartBonus = state.manaHeartBonus || 0;
 
   const manaWellLevel = getEffectiveSkillLevel(state.skills, 'manaWell', skillTiers);
 
@@ -34,7 +35,9 @@ export function computeMaxMana(
     (pu.manaWell || 0) * 500;
 
   const computedEffects = effects ?? computeEffects(skillUpgrades, skillTiers);
-  return Math.floor((base + computedEffects.maxManaBonus) * computedEffects.maxManaMultiplier);
+  // Apply MANA_HEART bonus (+10% per loop, compounds)
+  const heartMultiplier = 1 + manaHeartBonus;
+  return Math.floor((base + computedEffects.maxManaBonus) * computedEffects.maxManaMultiplier * heartMultiplier);
 }
 
 export function computeElementMax(