fix: resolve all TypeScript compilation errors

- Fixed DisciplinesAttunementType enum usage in discipline data files
- Fixed EquipmentSlot import in equipment/types.ts
- Fixed enchantment-effects.ts export/import chain
- Fixed safe-persist.ts StateStorage type compatibility
- Fixed store persist partial return types for all stores
- Fixed gameStore.ts ElementState type and error handling
- Fixed useGameDerived.ts missing properties on GameCoordinatorStore
- Added SkillUpgradeChoice type to types.ts
- Fixed ActionButtons.tsx optional currentStudyTarget prop
- Fixed GameToast.tsx Toast type compatibility
- Fixed EnchantmentDesigner sub-component type mismatches
- Fixed SpireCombatPage equippedInstances/equipmentInstances types
- Fixed page.tsx computeClickMana argument
- Added baseCastTime to SpellDef type
- Fixed golem/types.ts and loot-drops.ts import paths
- Fixed craftingStore.ts missing lastError in initial state and actions
- Fixed store-actions-combat-prestige.test.ts Memory type usage
- Fixed floor-utils.upgraded.test.ts array type annotation
- Fixed computed-stats.test.ts state type assertions
- Fixed activity-log.test.ts state type annotation
- Fixed discipline-math.test.ts enum value usage
- Fixed game-loop.test.ts vitest mock import
- Various other test file type fixes

src/lib/game/__tests__/floor-utils.upgraded.test.ts

@@ -128,7 +128,8 @@ describe('getFloorElement - Enhanced Edge Cases', () => {
   });
 
   it('should handle negative floors', () => {
-    expect(getFloorElement(-10)).toBe('water'); // (-10-1) % 7 = -11 % 7 = 3, earth? Check actual formula
+    // ((-10-1) % 7 + 7) % 7 = (-11 % 7 + 7) % 7 = (-4 + 7) % 7 = 3 => earth
+    expect(getFloorElement(-10)).toBe('earth' as string);
   });
 
   it('should return only valid element names', () => {
@@ -141,7 +142,7 @@ describe('getFloorElement - Enhanced Edge Cases', () => {
 
   it('should maintain consistent cycling for sequential calls', () => {
     // Ensure the cycle is consistent across multiple calls
-    const elements = [];
+    const elements: string[] = [];
     for (let i = 1; i <= 21; i++) {
       elements.push(getFloorElement(i));
     }