docs: add Bilibili demo videos to cookbook pages

- GeneralUpdate.Tools Mobile: Android packaging demo (BV1ctJF6XEJs)
- Avalonia Android cookbook: upgrade demo (BV1HtJF6XET3)
- MAUI Android cookbook: upgrade demo (BV1ntJF6XEvG)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: JusterZhu

website/docs/quickstart/Avalonia Android cookbook.md

@@ -7,6 +7,15 @@ title: Avalonia Android 实战手册
 
 这篇手册面向需要在 Avalonia 应用中集成 Android APK 自动更新的开发者。目标是用最少的代码跑通"检查更新 → 下载 APK → 校验 SHA256 → 启动安装器"的完整流程。
 
+<iframe
+  src="//player.bilibili.com/player.html?bvid=BV1HtJF6XET3&page=1"
+  width="100%"
+  height="480"
+  style={{ borderRadius: '8px', border: 'none' }}
+  allowFullScreen
+  scrolling="no"
+/>
+
 :::info 前置知识
 这篇手册假设你已经有一个 Avalonia 项目并配置好了 Android 目标框架。如果你还没有 Avalonia Android 项目，请先参考 [Avalonia 官方文档](https://docs.avaloniaui.net/) 创建。
 :::

website/docs/quickstart/GeneralUpdate.PacketTool.md

@@ -332,6 +332,15 @@ Generate Sample 额外输出：
 
 如果你使用 `GeneralUpdate.Avalonia.Android` 或 `GeneralUpdate.Maui.Android` 组件为 Android 应用提供自动更新能力，每次发布新版本时都需要获取 APK/AAB 文件的元数据（包名、版本号、SHA256 哈希、文件大小），并将其上传到服务端进行版本管理。Mobile 模块把"解析 → 打包 → 上传 → 生成版本记录"这四步收敛到一个界面中。
 
+<iframe
+  src="//player.bilibili.com/player.html?bvid=BV1ctJF6XEJs&page=1"
+  width="100%"
+  height="480"
+  style={{ borderRadius: '8px', border: 'none' }}
+  allowFullScreen
+  scrolling="no"
+/>
+
 支持两种工作模式：
 
 - **文件模式**：直接选择 APK 或 AAB 文件，自动解析 AndroidManifest.xml 提取元数据

website/docs/quickstart/Maui Android cookbook.md

@@ -7,6 +7,15 @@ title: MAUI Android 实战手册
 
 这篇手册面向需要在 MAUI 应用中集成 Android APK 自动更新的开发者。目标是用最少的代码跑通"检查更新 → 下载 APK → 校验 SHA256 → 启动安装器"的完整流程。
 
+<iframe
+  src="//player.bilibili.com/player.html?bvid=BV1ntJF6XEvG&page=1"
+  width="100%"
+  height="480"
+  style={{ borderRadius: '8px', border: 'none' }}
+  allowFullScreen
+  scrolling="no"
+/>
+
 :::info 前置知识
 这篇手册假设你已经有一个 .NET MAUI 项目并配置好了 Android 目标框架。如果你还没有 MAUI Android 项目，请先参考 [.NET MAUI 官方文档](https://learn.microsoft.com/dotnet/maui/) 创建。
 :::

website/i18n/en/docusaurus-plugin-content-docs/current/quickstart/Avalonia Android cookbook.md

@@ -7,6 +7,15 @@ title: Avalonia Android Cookbook
 
 This guide is for developers who need to integrate Android APK auto-update into their Avalonia applications. The goal is to complete the "check update → download APK → verify SHA256 → launch installer" workflow with minimal code.
 
+<iframe
+  src="//player.bilibili.com/player.html?bvid=BV1HtJF6XET3&page=1"
+  width="100%"
+  height="480"
+  style={{ borderRadius: '8px', border: 'none' }}
+  allowFullScreen
+  scrolling="no"
+/>
+
 :::info Prerequisites
 This guide assumes you already have an Avalonia project configured for Android target framework. If not, please refer to the [Avalonia documentation](https://docs.avaloniaui.net/) first.
 :::

website/i18n/en/docusaurus-plugin-content-docs/current/quickstart/GeneralUpdate.PacketTool.md

@@ -312,6 +312,15 @@ In the **OSS Config** module, click **ComputeHash**, select a local ZIP file, an
 
 If you use `GeneralUpdate.Avalonia.Android` or `GeneralUpdate.Maui.Android` to provide auto-update for your Android apps, each release requires extracting APK/AAB metadata (package name, version, SHA256 hash, file size) and uploading it to the server for version management. The Mobile module consolidates "parse → package → upload → generate version record" into a single interface.
 
+<iframe
+  src="//player.bilibili.com/player.html?bvid=BV1ctJF6XEJs&page=1"
+  width="100%"
+  height="480"
+  style={{ borderRadius: '8px', border: 'none' }}
+  allowFullScreen
+  scrolling="no"
+/>
+
 Supports two modes:
 
 - **File mode**: Select an APK or AAB file directly; the tool automatically parses AndroidManifest.xml to extract metadata.

website/i18n/en/docusaurus-plugin-content-docs/current/quickstart/Maui Android cookbook.md

@@ -7,6 +7,15 @@ title: MAUI Android Cookbook
 
 This guide is for developers who need to integrate Android APK auto-update into their .NET MAUI applications. The goal is to complete the "check update → download APK → verify SHA256 → launch installer" workflow with minimal code.
 
+<iframe
+  src="//player.bilibili.com/player.html?bvid=BV1ntJF6XEvG&page=1"
+  width="100%"
+  height="480"
+  style={{ borderRadius: '8px', border: 'none' }}
+  allowFullScreen
+  scrolling="no"
+/>
+
 :::info Prerequisites
 This guide assumes you already have a .NET MAUI project configured for Android target framework. If not, please refer to the [.NET MAUI documentation](https://learn.microsoft.com/dotnet/maui/) first.
 :::