chore(release): 准备发布 v2.4.0，改进 CI 发布流程

- 更新 @esengine/ecs-framework 版本号到 2.4.0
- 更新中英文 changelog
- CI: 支持标签触发自动发布（v* 或 package-v* 格式）
- CI: 保留手动触发选项
- CI: 标签模式下自动创建 GitHub Release

docs/changelog.md

@@ -4,6 +4,54 @@
 
 ---
 
+## v2.4.0 (2025-12-15)
+
+### Features
+
+- **EntityHandle 实体句柄**: 轻量级实体引用抽象 (#304)
+  - 28位索引 + 20位代数（generation）设计，高效复用已销毁实体槽位
+  - `EntityHandleManager` 管理句柄生命周期和有效性验证
+  - 支持句柄转换为实体引用，检测悬空引用
+
+- **SystemScheduler 系统调度器**: 声明式系统调度 (#304)
+  - 新增 `@Stage(name)` 装饰器指定系统执行阶段
+  - 新增 `@Before(SystemClass)` / `@After(SystemClass)` 装饰器声明系统依赖
+  - 新增 `@InSet(setName)` 装饰器将系统归入逻辑分组
+  - 基于拓扑排序自动解析执行顺序，检测循环依赖
+
+- **EpochManager 变更检测**: 帧级变更追踪机制 (#304)
+  - 跟踪组件添加/修改时间戳（epoch）
+  - 支持查询"自上次检查以来变化的组件"
+  - 适用于脏检测、增量更新等优化场景
+
+- **CompiledQuery 编译查询**: 预编译类型安全查询 (#304)
+  - 编译时生成优化的查询逻辑，减少运行时开销
+  - 完整的 TypeScript 类型推断支持
+  - 支持 `With`、`Without`、`Changed` 等查询条件组合
+
+- **PluginServiceRegistry**: 类型安全的插件服务注册表 (#300)
+  - 通过 `Core.pluginServices` 访问
+  - 支持 `ServiceToken<T>` 模式获取服务
+
+- **组件自动注册**: `@ECSComponent` 装饰器增强 (#302)
+  - 装饰器现在自动注册到 `ComponentRegistry`
+  - 解决 `Decorators ↔ ComponentRegistry` 循环依赖
+  - 新建 `ComponentTypeUtils.ts` 作为底层无依赖模块
+
+### API Changes
+
+- `EntitySystem` 添加 `getBefore()` / `getAfter()` / `getSets()` getter 方法
+- `Entity` 添加 `markDirty()` 辅助方法用于手动触发变更检测
+- `IScene` 添加 `epochManager` 属性
+- `CommandBuffer.pendingCount` 修正为返回实际操作数（而非实体数）
+
+### Documentation
+
+- 更新系统调度文档，添加声明式依赖配置章节
+- 更新实体查询文档，添加编译查询使用说明
+
+---
+
 ## v2.3.2 (2025-12-08)
 
 ### Features

docs/en/changelog.md

@@ -4,6 +4,54 @@ This document records the version update history of the `@esengine/ecs-framework
 
 ---
 
+## v2.4.0 (2025-12-15)
+
+### Features
+
+- **EntityHandle**: Lightweight entity reference abstraction (#304)
+  - 28-bit index + 20-bit generation design for efficient reuse of destroyed entity slots
+  - `EntityHandleManager` manages handle lifecycle and validity verification
+  - Support handle-to-entity conversion with dangling reference detection
+
+- **SystemScheduler**: Declarative system scheduling (#304)
+  - New `@Stage(name)` decorator to specify system execution stage
+  - New `@Before(SystemClass)` / `@After(SystemClass)` decorators to declare dependencies
+  - New `@InSet(setName)` decorator to group systems logically
+  - Automatic execution order resolution via topological sort with cycle detection
+
+- **EpochManager**: Frame-level change detection mechanism (#304)
+  - Track component add/modify timestamps (epochs)
+  - Support querying "components changed since last check"
+  - Suitable for dirty checking, incremental updates, and other optimization scenarios
+
+- **CompiledQuery**: Pre-compiled type-safe queries (#304)
+  - Compile-time generated optimized query logic, reducing runtime overhead
+  - Full TypeScript type inference support
+  - Support `With`, `Without`, `Changed` and other query condition combinations
+
+- **PluginServiceRegistry**: Type-safe plugin service registry (#300)
+  - Accessible via `Core.pluginServices`
+  - Support `ServiceToken<T>` pattern for service retrieval
+
+- **Component Auto-Registration**: `@ECSComponent` decorator enhancement (#302)
+  - Decorator now automatically registers to `ComponentRegistry`
+  - Resolved `Decorators ↔ ComponentRegistry` circular dependency
+  - New `ComponentTypeUtils.ts` as low-level dependency-free module
+
+### API Changes
+
+- `EntitySystem` adds `getBefore()` / `getAfter()` / `getSets()` getter methods
+- `Entity` adds `markDirty()` helper method for manual change detection triggering
+- `IScene` adds `epochManager` property
+- `CommandBuffer.pendingCount` corrected to return actual operation count (not entity count)
+
+### Documentation
+
+- Updated system scheduling documentation with declarative dependency configuration
+- Updated entity query documentation with compiled query usage
+
+---
+
 ## v2.3.2 (2025-12-08)
 
 ### Features