fix: resolve priority 4 issues — discipline mutation, skill→discipline migration, uiStore persistence, game loop interval, toast listener leak, page re-renders

- Issue 70: Fix discipline-slice.ts nested element mutation (use immutable spread)
- Issue 71: Add persist middleware to uiStore for paused/gameOver/victory
- Issue 72: Wire discipline effects into calcDamage (spell-casting, void-manipulation)
- Issue 73: Fix useGameLoop interval recreation (use getState() + empty deps)
- Issue 74: Fix use-toast.ts listener leak (change [state] dep to [])
- Issue 75: Reduce page.tsx re-renders with useShallow for multi-field subscriptions
- Issue 76: Fix createGatherMana hardcoded click mana (use computeClickMana with discipline effects)
- Issue 77: Pass discipline effects to computeMaxMana/computeRegen/calcInsight in tick()
- Export DisciplineBonuses type and useDisciplineStore from barrel exports
- Update tests to match new function signatures

src/lib/game/stores/gameLoopActions.ts

@@ -5,19 +5,22 @@ import { useUIStore } from './uiStore';
 import { usePrestigeStore } from './prestigeStore';
 import { useManaStore } from './manaStore';
 import { useCombatStore } from './combatStore';
+import { computeDisciplineEffects } from '../effects/discipline-effects';
+import { useDisciplineStore } from './discipline-slice';
 
 export const createStartNewLoop = (set: (state: any) => void) => () => {
   const prestigeState = usePrestigeStore.getState();
   const combatState = useCombatStore.getState();
   const manaState = useManaStore.getState();
 
+  const disciplineEffects = computeDisciplineEffects(useDisciplineStore.getState() as any);
   const insightGained = prestigeState.loopInsight || calcInsight({
     maxFloorReached: combatState.maxFloorReached,
     totalManaGathered: manaState.totalManaGathered,
     signedPacts: prestigeState.signedPacts,
     prestigeUpgrades: prestigeState.prestigeUpgrades,
     skills: {},
-  });
+  }, disciplineEffects);
 
   const total = prestigeState.insight + insightGained;