fix(ui): 修复 Markdown 弹窗中超链接点击无反应

[Lokins577]

Markdig.Wpf 的超链接点击会发出 Markdig.Wpf.Commands.Hyperlink 路由命令，需由宿主绑定处理才会导航；MyMsgMarkdown 从未绑定该命令，导致更新日志等Markdown 弹窗中的蓝色链接渲染正常但点击无任何反应。

在 MyMsgMarkdown 构造中为该命令添加 CommandBinding，处理器取命令参数（URL）交由 ModBase.OpenWebsite 打开。一处修复覆盖所有 Markdown 弹窗（更新日志、反馈详情、设置-更新的更新日志详情）。

resolves #3419

本PR的提交信息生成由Claude Code Opus 4.8生成，由Opus 4.8对代码进行了审查。

Summary by Sourcery

Bug Fixes:

• 修复在更新日志和其他 Markdown 弹窗中，Markdown 对话框中的超链接虽然显示为蓝色链接但点击无响应的问题。

Original summary in English

Summary by Sourcery

Bug Fixes:

• Fix Markdown dialog hyperlinks that rendered as blue links but did not respond to clicks in update logs and other Markdown popups.

Original summary in English

Summary by Sourcery

Bug Fixes:

• 修复在更新日志和其他 Markdown 弹窗中，Markdown 对话框中的超链接虽然显示为蓝色链接但点击无响应的问题。

Original summary in English

Summary by Sourcery

Bug Fixes:

• Fix Markdown dialog hyperlinks that rendered as blue links but did not respond to clicks in update logs and other Markdown popups.

[sourcery-ai]

审阅者指南（在小型 PR 上默认折叠）

审阅者指南

在 Markdown 消息对话框中添加一个命令绑定，使 Markdig.Wpf 的超链接命令通过打开关联 URL 来处理，从而修复所有基于 Markdown 的弹窗中无响应的链接问题。

处理 Markdown 超链接点击的序列图

sequenceDiagram
    actor User
    participant MyMsgMarkdown
    participant MarkdigWpf
    participant ModBase

    User->>MarkdigWpf: Click hyperlink
    MarkdigWpf->>MyMsgMarkdown: Commands.Hyperlink (url)
    MyMsgMarkdown->>MyMsgMarkdown: _OpenHyperlink(e)
    MyMsgMarkdown->>ModBase: OpenWebsite(url)

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文件级变更

变更	详情	文件
在 Markdown 对话框中处理 Markdig.Wpf 的超链接命令，将其绑定到一个打开 URL 的处理程序。	在 MyMsgMarkdown 构造函数中为 Markdig.Wpf.Commands.Hyperlink 添加 CommandBinding，使超链接点击会调用处理程序。 实现一个静态的 _OpenHyperlink 命令处理程序，从命令参数中读取 URL，并将导航委托给 ModBase.OpenWebsite。 通过在此控件中集中设置绑定，确保修复应用于所有使用 MyMsgMarkdown 的对话框，例如更新日志和反馈详情。	Plain Craft Launcher 2/Controls/MyMsg/MyMsgMarkdown.xaml.cs

与关联 Issue 的对照评估

Issue	目标	是否解决	说明
#3419	确保 Markdown 驱动的更新日志弹窗（以及其他 Markdown 对话框）中的蓝色下划线超链接在点击时会触发导航并打开对应的 URL。	✅

可能关联的其他 Issue

• [C#]: 瞅眼服务器中玩家列表的tooltip触发位置不对 #3420：此 PR 将 Markdig 的超链接命令接线为打开 URL，修复了变更日志中不响应的 Markdown 链接。

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Original review guide in English

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Adds a command binding in the Markdown message dialog so that Markdig.Wpf hyperlink commands are handled by opening the associated URL, fixing non-responsive links in all Markdown-based popups.

Sequence diagram for handling Markdown hyperlink clicks

sequenceDiagram
    actor User
    participant MyMsgMarkdown
    participant MarkdigWpf
    participant ModBase

    User->>MarkdigWpf: Click hyperlink
    MarkdigWpf->>MyMsgMarkdown: Commands.Hyperlink (url)
    MyMsgMarkdown->>MyMsgMarkdown: _OpenHyperlink(e)
    MyMsgMarkdown->>ModBase: OpenWebsite(url)

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File-Level Changes

Change	Details	Files
Handle Markdig.Wpf hyperlink commands in the Markdown dialog by binding them to an URL-opening handler.	Add a CommandBinding for Markdig.Wpf.Commands.Hyperlink in the MyMsgMarkdown constructor so hyperlink clicks invoke a handler. Implement a static _OpenHyperlink command handler that reads the URL from the command parameter and delegates navigation to ModBase.OpenWebsite. Ensure the fix applies to all dialogs that use MyMsgMarkdown, such as update logs and feedback details, by centralizing the binding in this control.	Plain Craft Launcher 2/Controls/MyMsg/MyMsgMarkdown.xaml.cs

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#3419	Ensure that blue underlined hyperlinks in the Markdown-based update log popup (and other Markdown dialogs) trigger navigation and open the corresponding URL when clicked.	✅

Possibly linked issues

• [C#]: 瞅眼服务器中玩家列表的tooltip触发位置不对 #3420: PR wires Markdig hyperlink command to open URLs, fixing the changelog Markdown links that wouldn’t respond.

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[sourcery-ai]

嗨，我已经审查了你的修改，看起来很棒！

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Original comment in English

Hey - I've reviewed your changes and they look great!

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