feat(ui): relocate plugin web pages from sidebar to dedicated dashboard panel

[XTsat]

让插件UI页面更符合面板使用 #9816

Modifications / 改动点

将 Astrbot 的插件 Web 面板从侧边栏中独立出来，新建一个“插件页面”页面

• This is NOT a breaking change. / 这不是一个破坏性变更。

Screenshots or Test Results / 运行截图或测试结果

PixPin_2026-08-26_18-52-30.mp4

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Checklist / 检查清单

• 😊 If there are new features added in the PR, I have discussed it with the authors through issues/emails, etc.
  / 如果 PR 中有新加入的功能，已经通过 Issue / 邮件等方式和作者讨论过。

• 👀 My changes have been well-tested, and "Verification Steps" and "Screenshots" have been provided above.
  / 我的更改经过了良好的测试，并已在上方提供了“验证步骤”和“运行截图”。

• 🤓 I have ensured that no new dependencies are introduced, OR if new dependencies are introduced, they have been added to the appropriate locations in requirements.txt and pyproject.toml.
  / 我确保没有引入新依赖库，或者引入了新依赖库的同时将其添加到 requirements.txt 和 pyproject.toml 文件相应位置。

• 😮 My changes do not introduce malicious code.
  / 我的更改没有引入恶意代码。

Summary by Sourcery

Move plugin web interfaces into a dedicated, integrated dashboard page with improved navigation and plugin management.

New Features:

• Add a dedicated plugin pages workspace tab with searchable plugin cards and inline page viewing.
• Provide navigation between active plugins with web pages, including active-state highlighting, expansion, horizontal scrolling, and browser-tab opening behavior.
• Support pinning plugin page entries and preserve existing plugin management actions within the new view.

Bug Fixes:

• Keep plugin web pages within the dashboard workspace instead of opening them through a standalone full-screen route.

Enhancements:

• Remove dynamic plugin entries from the sidebar and integrate plugin page navigation into the extension workspace.
• Update extension routing and localized labels for the dedicated plugin pages experience.
• Adjust workspace layout to support full-height inline plugin pages while retaining dashboard chrome.

Chores:

• Remove the obsolete plugin sidebar composable and standalone plugin-page route.

[sourcery-ai]

Hey - I've found 2 issues

Prompt for AI Agents

Please address the comments from this code review:

## Individual Comments

### Comment 1
<location path="dashboard/src/router/MainRoutes.ts" line_range="93-97" />
<code_context>
           props: { initialTab: 'market' },
           meta: { extensionTab: 'installed', pluginView: 'market' }
         },
+        {
+          name: 'ExtensionPluginPages',
+          path: 'pages/:pluginName?/:pageName?',
+          component: () => import('@/views/ExtensionPage.vue'),
+          props: { initialTab: 'installed' },
+          meta: { extensionTab: 'pluginPages', pluginView: 'pluginPages' }
+        },
         {
           name: 'ExtensionMcp',
</code_context>
<issue_to_address>
**issue (broader_impact):** Existing bookmarks, external links, or plugin-generated links to `/plugin-page/:pluginName/:pageName` now resolve to a 404 because the old route is deleted and no redirect to `ExtensionPluginPages` is registered.

**Triggers:** When a user opens a previously generated or bookmarked standalone plugin-page URL.

**Suggested fix:** Keep a compatibility redirect for `/plugin-page/:pluginName/:pageName` to `ExtensionPluginPages` with the corresponding parameters.
</issue_to_address>

### Comment 2
<location path="dashboard/src/views/ExtensionPage.vue" line_range="192-194" />
<code_context>

+// All installed plugins that ship web pages, listed in the page switcher row.
+const pluginsWithPages = computed(() =>
+  filteredExtensions.value.filter(
+    (plugin) => Array.isArray(plugin?.pages) && plugin.pages.length > 0,
+  ),
+);
+
+const openPluginPage = (plugin) => {
</code_context>
<issue_to_address>
**issue (bug_risk):** The plugin-page switcher includes installed plugins with pages regardless of `plugin.activated`; selecting a disabled plugin navigates to its page and `PluginPagePage` then displays a disabled-plugin error instead of excluding it from the switcher.

**Triggers:** When an installed plugin exposes pages but is disabled.

**Suggested fix:** Filter the switcher list to activated plugins, or disable the corresponding switcher buttons and prevent navigation.

```suggestion
  filteredExtensions.value.filter(
    (plugin) =>
      plugin?.activated &&
      Array.isArray(plugin?.pages) &&
      plugin.pages.length > 0,
  ),
```
</issue_to_address>

Sourcery assessment

Approval pending. 2 findings to address first.

Blocking findings: dashboard/src/router/MainRoutes.ts:97, dashboard/src/views/ExtensionPage.vue:194

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[XTsat]

针对插件页面的修改已经完成了，可以审阅了