docs(site): [SITE-04] document PiP and ASR contracts in both languages

refactor/site-content-review.md

@@ -10,6 +10,8 @@ tasks.json 维护。SITE-01 的 963 条核心声明成员包含继承、重载
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 | Chapter | [入口](../packages/artplayer-plugin-chapter/src/index.ts)、[区间处理](../packages/artplayer-plugin-chapter/src/chapters.ts)、progress.ts、stylesheet.ts、公开 types、README/ARCHITECTURE | [中文](../packages/artplayer-vitepress/docs/plugin/chapter.md) / [English](../packages/artplayer-vitepress/docs/en/plugin/chapter.md)：工厂可选参数；Chapters.start/end/title；Option.chapters；Result.name/update；命名类型与 legacy；初始化、原数组修改、同步错误及销毁 | 一次 metadata 初始化；切源需新数据；update 对象必填；没有额外 runtime/destroy 入口；WebKit 停顿和真机缺口未关闭 |
 | Ambilight | [入口](../packages/artplayer-plugin-ambilight/src/index.ts)、scheduler.ts、sampler.ts、view.ts、根/runtime/legacy 声明、README/ARCHITECTURE | [中文](../packages/artplayer-vitepress/docs/plugin/ambilight.md) / [English](../packages/artplayer-vitepress/docs/en/plugin/ambilight.md)：Option.blur/opacity/frequency/zIndex/duration；Result.name/start/stop；Callable/Factory/RuntimeFactory；默认导出、默认自引用及历史类型形状 | zIndex 参数忽略、实际层级9；stop保留颜色；仅播放时采样；ready后安装需手动start；无update/destroy；像素可读性、CORS与代理能力分别说明 |
+| Document PiP | [入口](../packages/artplayer-plugin-document-pip/src/index.ts)、window-session.ts、projection.ts、根/legacy 声明与 exports、README/ARCHITECTURE | [中文](../packages/artplayer-vitepress/docs/plugin/document-pip.md) / [English](../packages/artplayer-vitepress/docs/en/plugin/document-pip.md)：四个配置默认值；name/isSupported/isActive/open/close/toggle；document-pip 事件；Option/Result/AsyncResult/Factory/RuntimeFactory | 旧 void/可写类型与实际 Promise/只读 getter 分开；没有 runtime 子路径；用户激活、降级视频 PiP 不计会话、取消/迟到窗口/销毁、样式复制与真实设备限制 |
+| ASR | [入口](../packages/artplayer-plugin-asr/src/index.ts)、capture.ts、subtitles.ts、encoding.ts、根/runtime 声明、README/ARCHITECTURE | [中文](../packages/artplayer-vitepress/docs/plugin/asr.md) / [English](../packages/artplayer-vitepress/docs/en/plugin/asr.md)：六个配置；PCM/WAV；name/append/hide/stop；根与 runtime 命名类型、回调和模块入口 | 模拟示例不是识别；第一声道、串行回调/积压上限/陈旧结果；HTML 不自动转义；stop 可重启且保留直接播放图；捕获流/CORS/独立音轨/静音边界，不声称真机已验证 |
 
 上述说明与当前实现逐项对照，示例取自原 docs/assets/example 文件。Chapter 的空
 视图、非法值和破坏性数组更新不能描述成不可变操作；Ambilight 的采样调度不能