refactor: entity -> MutableSignal

tests/utils/mutable-signal.test.ts

@@ -1,5 +1,5 @@
 import { describe, it, expect } from 'vitest';
-import { createEntityCollection, Entity, entity } from '@/utils/entity';
+import { createEntityCollection, MutableSignal, mutableSignal } from '@/utils/mutable-signal';
 
 type TestEntity = {
     id: string;
@@ -82,16 +82,6 @@ describe('createEntityCollection', () => {
         expect(collection.get('nonexistent')).toBeUndefined();
     });
 
-    it('should have correct accessor id', () => {
-        const collection = createEntityCollection<TestEntity>();
-        const testEntity: TestEntity = { id: 'e1', name: 'Entity 1', value: 10 };
-
-        collection.add(testEntity);
-
-        const accessor = collection.get('e1');
-        expect(accessor.id).toBe('e1');
-    });
-
     it('should handle removing non-existent entity', () => {
         const collection = createEntityCollection<TestEntity>();
         const testEntity: TestEntity = { id: 'e1', name: 'Entity 1', value: 10 };
@@ -116,20 +106,19 @@ describe('createEntityCollection', () => {
     });
 });
 
-describe('Entity', () => {
-    it('should create entity with id and value', () => {
-        const e = entity('test', { count: 1 });
-        expect(e.id).toBe('test');
-        expect(e.value.count).toBe(1);
+describe('MutableSignal', () => {
+    it('should create signal with initial value', () => {
+        const s = mutableSignal({ count: 1 });
+        expect(s.value.count).toBe(1);
     });
 
     it('should produce immutable updates', () => {
-        const e = entity('test', { count: 1, items: [1, 2, 3] });
-        e.produce(draft => {
+        const s = mutableSignal({ count: 1, items: [1, 2, 3] });
+        s.produce(draft => {
             draft.count = 2;
             draft.items.push(4);
         });
-        expect(e.value.count).toBe(2);
-        expect(e.value.items).toEqual([1, 2, 3, 4]);
+        expect(s.value.count).toBe(2);
+        expect(s.value.items).toEqual([1, 2, 3, 4]);
     });
 });