Feature/runtime cdn and plugin loader (#240)

* feat(ui): 完善 UI 布局系统和编辑器可视化工具

* refactor: 移除 ModuleRegistry，统一使用 PluginManager 插件系统

* fix: 修复 CodeQL 警告并提升测试覆盖率

* refactor: 分离运行时入口点，解决 runtime bundle 包含 React 的问题

* fix(ci): 添加 editor-core 和 editor-runtime 到 CI 依赖构建步骤

* docs: 完善 ServiceContainer 文档，新增 Symbol.for 模式和 @InjectProperty 说明

* fix(ci): 修复 type-check 失败问题

* fix(ci): 修复类型检查失败问题

* fix(ci): 修复类型检查失败问题

* fix(ci): behavior-tree 构建添加 @tauri-apps 外部依赖

* fix(ci): behavior-tree 添加 @tauri-apps/plugin-fs 类型依赖

* fix(ci): platform-web 添加缺失的 behavior-tree 依赖

* fix(lint): 移除正则表达式中不必要的转义字符

packages/core/tests/ECS/Utils/Matcher.test.ts

@@ -485,6 +485,59 @@ describe('Matcher', () => {
         });
     });
     
+    describe('nothing() 匹配器', () => {
+        test('nothing() 应该创建不匹配任何实体的匹配器', () => {
+            const matcher = Matcher.nothing();
+            const condition = matcher.getCondition();
+
+            expect(condition.matchNothing).toBe(true);
+            expect(condition.all).toHaveLength(0);
+            expect(condition.any).toHaveLength(0);
+            expect(condition.none).toHaveLength(0);
+        });
+
+        test('isNothing() 应该正确判断 nothing 匹配器', () => {
+            const nothingMatcher = Matcher.nothing();
+            expect(nothingMatcher.isNothing()).toBe(true);
+
+            const normalMatcher = Matcher.all(Position);
+            expect(normalMatcher.isNothing()).toBe(false);
+
+            const emptyMatcher = Matcher.empty();
+            expect(emptyMatcher.isNothing()).toBe(false);
+        });
+
+        test('isEmpty() 不应该将 nothing 匹配器视为空', () => {
+            const nothingMatcher = Matcher.nothing();
+            // nothing 匹配器有明确的语义，不应该算作空
+            expect(nothingMatcher.isEmpty()).toBe(false);
+        });
+
+        test('toString() 应该正确处理 nothing 匹配器', () => {
+            const matcher = Matcher.nothing();
+            const str = matcher.toString();
+
+            expect(str).toBe('Matcher[nothing]');
+        });
+
+        test('clone() 应该正确复制 nothing 匹配器', () => {
+            const original = Matcher.nothing();
+            const cloned = original.clone();
+
+            expect(cloned.isNothing()).toBe(true);
+            expect(cloned.getCondition().matchNothing).toBe(true);
+        });
+
+        test('reset() 应该清除 matchNothing 标志', () => {
+            const matcher = Matcher.nothing();
+            expect(matcher.isNothing()).toBe(true);
+
+            matcher.reset();
+            expect(matcher.isNothing()).toBe(false);
+            expect(matcher.isEmpty()).toBe(true);
+        });
+    });
+
     describe('类型安全性', () => {
         test('ComponentType 应该正确工作', () => {
             // 这个测试主要是确保类型编译正确