Remove Temporal Memory skill, fix unimplemented crafting effects

- Remove Temporal Memory skill from SKILLS_DEF (functionality should only be purchased with insight)
- Remove temporalMemory references from all store files (timeSlice, prestigeSlice, store, gameStore)
- Update tests to remove Temporal Memory test cases
- Fix TODO items in craftingSlice.ts:
  - Add skill caching for calculateApplicationTime
  - Use getEnchantEfficiencyBonus for efficiency calculation
- Transference mana type verified and working correctly

src/lib/game/store.test.ts

@@ -1018,15 +1018,7 @@ describe('Individual Skill Tests', () => {
       expect(insight3).toBe(Math.floor(insight0 * 1.3));
     });
   });
-  
-  describe('temporalMemory', () => {
-    it('should keep 1 spell learned across loops per level', () => {
-      expect(SKILLS_DEF.temporalMemory).toBeDefined();
-      expect(SKILLS_DEF.temporalMemory.max).toBe(3);
-      expect(SKILLS_DEF.temporalMemory.desc).toContain('Keep 1 spell learned');
-    });
-  });
-  
+
   describe('guardianBane', () => {
     it('should add +20% damage vs guardians per level', () => {
       expect(SKILLS_DEF.guardianBane).toBeDefined();