0.7.2

This reverts commit aeae4be060.

.codex/environments/environment.toml

@@ -0,0 +1,16 @@
+# THIS IS AUTOGENERATED. DO NOT EDIT MANUALLY
+version = 1
+name = "LanMountainDesktop"
+
+[setup]
+script = ""
+
+[[actions]]
+name = "运行"
+icon = "run"
+command = "dotnet run --project 'C:\\Users\\USER693091\\Documents\\GitHub\\LanMountainDesktop\\LanMountainDesktop\\LanMountainDesktop.csproj"
+
+[[actions]]
+name = "构建"
+icon = "tool"
+command = "dotnet build 'C:\\Users\\USER693091\\Documents\\GitHub\\LanMountainDesktop\\LanMountainDesktop.slnx"

.github/workflows/airappmarket-validate.yml

@@ -1,27 +0,0 @@
-name: AirAppMarket Validate
-
-on:
-  push:
-    paths:
-      - "airappmarket/**"
-      - ".github/workflows/airappmarket-validate.yml"
-  pull_request:
-    paths:
-      - "airappmarket/**"
-      - ".github/workflows/airappmarket-validate.yml"
-
-jobs:
-  validate:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup .NET
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: "10.0.x"
-
-      - name: Validate AirAppMarket index
-        run: dotnet run --project airappmarket/tools/AirAppMarket.Validator -- airappmarket/index.json airappmarket/schema/airappmarket-index.schema.json

.github/workflows/build.yml

@@ -113,3 +113,31 @@ jobs:
           path: |
             LanMountainDesktop/bin/Release/
           retention-days: 7
+
+  pack-plugin-packages:
+    runs-on: ubuntu-latest
+    name: Pack_Plugin_Packages
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+
+      - name: Pack SDK and template packages
+        shell: pwsh
+        run: .\scripts\Pack-PluginPackages.ps1 -Configuration Release -OutputPath .\artifacts\nuget
+
+      - name: Upload plugin package artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: plugin-packages
+          path: artifacts/nuget/*.nupkg
+          if-no-files-found: error
+          retention-days: 14

Directory.Build.props

@@ -0,0 +1,8 @@
+<Project>
+  <PropertyGroup>
+    <Version>1.0.0</Version>
+    <TargetFramework Condition="'$(TargetFramework)' == ''">net10.0</TargetFramework>
+    <Nullable Condition="'$(Nullable)' == ''">enable</Nullable>
+    <ImplicitUsings Condition="'$(ImplicitUsings)' == ''">enable</ImplicitUsings>
+  </PropertyGroup>
+</Project>

LanAirApp/README.md

@@ -1,33 +0,0 @@
-# LanAirApp (Mirror)
-
-## 中文
-
-这里的 `LanAirApp/` 是放在宿主仓库里的镜像副本，只用于本地联调和工作区构建，不是插件市场或插件开发资料的最终权威来源。
-
-### 这份镜像的角色
-
-- 提供本地工作区里的 `airappmarket` 索引副本
-- 提供插件文档、工具和样例镜像，便于和宿主一起联调
-- 不承担宿主运行时职责
-
-### 权威来源
-
-- 插件市场与开发文档：独立 `LanAirApp` 仓库
-- 权威示例插件：独立 `LanMountainDesktop.SamplePlugin`
-- 本目录中的 `samples/LanMountainDesktop.SamplePlugin` 只是镜像模板副本
-
-## English
-
-This `LanAirApp/` directory is a mirror that lives inside the host repository. It exists for local workspace integration and build convenience only. It is not the final authority for the plugin market or developer-facing plugin materials.
-
-### Role of this mirror
-
-- keep a local copy of the `airappmarket` index for workspace integration
-- keep mirrored docs, tools, and sample templates for local development
-- avoid duplicating host runtime responsibilities
-
-### Sources of truth
-
-- Plugin market and developer docs: standalone `LanAirApp`
-- Authoritative sample plugin: standalone `LanMountainDesktop.SamplePlugin`
-- `samples/LanMountainDesktop.SamplePlugin` in this mirror is template/mirror content only

LanAirApp/docs/PLUGIN_DEVELOPMENT.md

@@ -1,16 +0,0 @@
-# 插件开发指南
-
-## 中文
-
-使用 `LanMountainDesktop.PluginSdk` 开发插件时，至少需要准备：
-
-- `plugin.json`
-- 插件入口程序集
-- 入口类
-- 本地化资源
-
-推荐从示例插件开始，先完成清单、入口、设置页和桌面组件，再逐步扩展业务逻辑。
-
-## English
-
-To build a plugin with `LanMountainDesktop.PluginSdk`, prepare the manifest, plugin assembly, entrance class, and localization resources first.

LanAirApp/docs/PLUGIN_PACKAGING.md

@@ -1,14 +0,0 @@
-# 插件打包指南
-
-## 中文
-
-阑山桌面插件的标准安装格式为 `.laapp`。插件项目应在仓库根目录提供：
-
-- `.laapp` 安装包
-- `README.md`
-
-官方市场索引只负责记录链接和校验信息。
-
-## English
-
-The standard package format is `.laapp`. Plugin repositories should keep the package and `README.md` in the repository root, while the official market index stores metadata and validation data.

LanAirApp/samples/LanMountainDesktop.SamplePlugin/LanMountainDesktop.SamplePlugin.csproj

@@ -1,30 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-    <Version>1.0.0</Version>
-    <EnableDynamicLoading>true</EnableDynamicLoading>
-    <OutputPath>bin\$(Configuration)\$(TargetFramework)\content\</OutputPath>
-    <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
-    <AppendRuntimeIdentifierToOutputPath>false</AppendRuntimeIdentifierToOutputPath>
-    <PluginPackageOutputDirectory>$(MSBuildThisFileDirectory)artifacts\Packages\</PluginPackageOutputDirectory>
-    <PluginPackagePath>$(PluginPackageOutputDirectory)$(AssemblyName).$(Version).laapp</PluginPackagePath>
-    <LegacyLoosePluginOutputDirectory>$(MSBuildThisFileDirectory)artifacts\Loose\</LegacyLoosePluginOutputDirectory>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\..\..\LanMountainDesktop.PluginSdk\LanMountainDesktop.PluginSdk.csproj" Private="false" />
-    <None Include="plugin.json" CopyToOutputDirectory="PreserveNewest" />
-    <None Include="Localization\*.json" CopyToOutputDirectory="PreserveNewest" />
-  </ItemGroup>
-
-  <Target Name="CreateLaappPackage" AfterTargets="Build">
-    <MakeDir Directories="$(PluginPackageOutputDirectory)" />
-    <RemoveDir Directories="$(LegacyLoosePluginOutputDirectory)" />
-    <Delete Files="$(PluginPackagePath)" TreatErrorsAsWarnings="true" />
-    <ZipDirectory SourceDirectory="$(OutputPath)" DestinationFile="$(PluginPackagePath)" />
-  </Target>
-
-</Project>

LanAirApp/samples/LanMountainDesktop.SamplePlugin/Localization/en-US.json

@@ -1,84 +0,0 @@
-{
-  "settings.page_title": "Plugin Status",
-  "plugin.name": "LanMountain Sample Plugin",
-  "plugin.description": "Example plugin used to validate PluginSdk loading, services, communication, and localization.",
-  "widget.display_name": "Sample Plugin Status Clock",
-  "widget.category": "Plugins",
-  "settings.header.title": "Sample Plugin Capability Inspector",
-  "settings.section.info": "Plugin Info",
-  "settings.section.capabilities": "Accessible Capabilities",
-  "settings.section.status": "Live Runtime Status",
-  "settings.info.plugin_name": "Plugin Name",
-  "settings.info.plugin_id": "Plugin Id",
-  "settings.info.version": "Version",
-  "settings.info.author": "Author",
-  "settings.info.description": "Description",
-  "settings.info.plugin_directory": "Plugin Directory",
-  "settings.info.data_directory": "Data Directory",
-  "settings.info.host_application": "Host Application",
-  "settings.info.host_version": "Host Version",
-  "settings.info.sdk_api_version": "SDK API Version",
-  "settings.info.state_service_resolved": "State Service Resolved",
-  "settings.info.clock_service_resolved": "Clock Service Resolved",
-  "settings.info.message_bus_resolved": "Message Bus Resolved",
-  "settings.info.component_placed": "Component Placed",
-  "settings.info.placed_count": "Placed Count",
-  "settings.info.preview_count": "Preview Count",
-  "settings.info.placement_ids": "Placement Ids",
-  "settings.info.last_component_id": "Last Component Id",
-  "settings.info.last_cell_size": "Last Cell Size",
-  "settings.info.clock_service_time": "Clock Service Time",
-  "settings.status.updated_at": "Updated: {0}",
-  "status.frontend.title": "Frontend Status",
-  "status.component.title": "Component Status",
-  "status.backend.title": "Backend Status",
-  "status.service.title": "Clock Service",
-  "status.summary.pending": "Pending",
-  "status.summary.attached": "Attached",
-  "status.summary.healthy": "Healthy",
-  "status.summary.faulted": "Faulted",
-  "status.summary.placed": "Placed",
-  "status.summary.preview": "Preview",
-  "status.frontend.detail.pending": "Waiting for a plugin UI surface to connect.",
-  "status.frontend.detail.settings_connected": "Settings page is connected to plugin services and communication.",
-  "status.frontend.detail.widget_connected": "Widget surface is connected to plugin services and communication.",
-  "status.component.detail.pending": "No component instance has been created yet.",
-  "status.component.detail.none": "No component instance is active.",
-  "status.component.detail.preview": "Preview instances: {0}; no placed desktop instance is active yet.",
-  "status.component.detail.placed": "Placed count: {0}; preview count: {1}; placements: {2}",
-  "status.backend.detail.pending": "Plugin initialization is in progress.",
-  "status.backend.detail.log_written": "Initialization log written to: {0}",
-  "status.backend.detail.log_write_failed": "Initialization log write failed: {0}",
-  "status.service.detail.pending": "Clock service is not attached yet.",
-  "status.service.detail.attached": "Clock service was attached and is waiting for the first tick.",
-  "status.service.detail.running": "Clock service is running. Current service time: {0}",
-  "status.service.detail.write_failed": "Clock state write failed: {0}",
-  "capability.manifest.title": "IPluginContext.Manifest",
-  "capability.manifest.detail": "Readable. Current plugin id: {0}; version: {1}.",
-  "capability.directories.title": "IPluginContext.PluginDirectory / DataDirectory",
-  "capability.directories.detail": "Readable. Plugin directory: {0}; data directory: {1}.",
-  "capability.properties.title": "IPluginContext.Properties",
-  "capability.properties.detail": "Readable. Host properties currently exposed: {0}.",
-  "capability.get_service.title": "IPluginContext.GetService<T>()",
-  "capability.get_service.detail": "Callable. State service resolved: {0}; clock service resolved: {1}; message bus resolved: {2}.",
-  "capability.register_service.title": "IPluginContext.RegisterService<TService>()",
-  "capability.register_service.detail": "Callable during plugin initialization. This sample plugin registers SamplePluginRuntimeStateService and SamplePluginClockService into the plugin service container.",
-  "capability.message_bus.title": "Plugin Communication Bus",
-  "capability.message_bus.detail": "This sample plugin uses IPluginMessageBus to push clock ticks and state change notifications into plugin UI surfaces.",
-  "capability.widget_context.title": "PluginDesktopComponentContext",
-  "capability.widget_context.detail": "Widgets can read ComponentId, PlacementId, CellSize, and call GetService<T>() against the same plugin service container.",
-  "widget.close_desktop.display_name": "Close Desktop",
-  "widget.close_desktop.text": "Close Desktop",
-  "widget.close_desktop.hint": "Exit LanMountainDesktop on click",
-  "widget.close_desktop.unavailable": "Host lifecycle API is unavailable",
-  "widget.close_desktop.failed": "Host rejected the exit request",
-  "widget.subtitle.preview": "Preview surface | placed: {0}",
-  "widget.subtitle.placement": "Placement {0} | placed: {1}",
-  "common.dev": "dev",
-  "common.none": "(none)",
-  "common.unknown": "(unknown)",
-  "common.true": "true",
-  "common.false": "false",
-  "common.yes": "Yes",
-  "common.no": "No"
-}

LanAirApp/samples/LanMountainDesktop.SamplePlugin/Localization/zh-CN.json

@@ -1,79 +0,0 @@
-{
-  "settings.page_title": "插件状态",
-  "plugin.name": "阑山示例插件",
-  "plugin.description": "用于验证 PluginSdk 加载、服务、通信与本地化能力的示例插件。",
-  "widget.display_name": "示例插件状态时钟",
-  "widget.category": "插件",
-  "settings.header.title": "示例插件能力检查器",
-  "settings.section.info": "插件信息",
-  "settings.section.capabilities": "可访问能力",
-  "settings.section.status": "实时运行状态",
-  "settings.info.plugin_name": "插件名称",
-  "settings.info.plugin_id": "插件 Id",
-  "settings.info.version": "版本",
-  "settings.info.author": "作者",
-  "settings.info.description": "描述",
-  "settings.info.plugin_directory": "插件目录",
-  "settings.info.data_directory": "数据目录",
-  "settings.info.host_application": "宿主应用",
-  "settings.info.host_version": "宿主版本",
-  "settings.info.sdk_api_version": "SDK API 版本",
-  "settings.info.state_service_resolved": "状态服务已解析",
-  "settings.info.clock_service_resolved": "时钟服务已解析",
-  "settings.info.message_bus_resolved": "消息总线已解析",
-  "settings.info.component_placed": "组件是否已放置",
-  "settings.info.placed_count": "已放置数量",
-  "settings.info.preview_count": "预览数量",
-  "settings.info.placement_ids": "放置位置 Id",
-  "settings.info.last_component_id": "最近组件 Id",
-  "settings.info.last_cell_size": "最近单元尺寸",
-  "settings.info.clock_service_time": "时钟服务时间",
-  "settings.status.updated_at": "更新时间：{0}",
-  "status.frontend.title": "前端状态",
-  "status.component.title": "组件状态",
-  "status.backend.title": "后端状态",
-  "status.service.title": "时钟服务",
-  "status.summary.pending": "等待中",
-  "status.summary.attached": "已挂接",
-  "status.summary.healthy": "正常",
-  "status.summary.faulted": "异常",
-  "status.summary.placed": "已放置",
-  "status.summary.preview": "预览中",
-  "status.frontend.detail.pending": "等待插件界面接入。",
-  "status.frontend.detail.settings_connected": "设置页已接入插件服务与通信。",
-  "status.frontend.detail.widget_connected": "组件界面已接入插件服务与通信。",
-  "status.component.detail.pending": "当前还没有创建组件实例。",
-  "status.component.detail.none": "当前没有活动中的组件实例。",
-  "status.component.detail.preview": "当前预览实例数量：{0}；尚未有已放置的桌面实例。",
-  "status.component.detail.placed": "已放置数量：{0}；预览数量：{1}；放置位置：{2}",
-  "status.backend.detail.pending": "插件初始化进行中。",
-  "status.backend.detail.log_written": "初始化日志已写入：{0}",
-  "status.backend.detail.log_write_failed": "初始化日志写入失败：{0}",
-  "status.service.detail.pending": "时钟服务尚未挂接。",
-  "status.service.detail.attached": "时钟服务已挂接，正在等待第一次心跳。",
-  "status.service.detail.running": "时钟服务运行中，当前服务时间：{0}",
-  "status.service.detail.write_failed": "时钟状态写入失败：{0}",
-  "capability.manifest.title": "IPluginContext.Manifest",
-  "capability.manifest.detail": "可读取。当前插件 id：{0}；版本：{1}。",
-  "capability.directories.title": "IPluginContext.PluginDirectory / DataDirectory",
-  "capability.directories.detail": "可读取。插件目录：{0}；数据目录：{1}。",
-  "capability.properties.title": "IPluginContext.Properties",
-  "capability.properties.detail": "可读取。宿主当前暴露的属性：{0}。",
-  "capability.get_service.title": "IPluginContext.GetService<T>()",
-  "capability.get_service.detail": "可调用。状态服务已解析：{0}；时钟服务已解析：{1}；消息总线已解析：{2}。",
-  "capability.register_service.title": "IPluginContext.RegisterService<TService>()",
-  "capability.register_service.detail": "可在插件初始化阶段调用。这个示例插件会把 SamplePluginRuntimeStateService 和 SamplePluginClockService 注册进插件服务容器。",
-  "capability.message_bus.title": "插件通信总线",
-  "capability.message_bus.detail": "这个示例插件通过 IPluginMessageBus 向插件 UI 推送时钟心跳和状态变化通知。",
-  "capability.widget_context.title": "PluginDesktopComponentContext",
-  "capability.widget_context.detail": "组件可以读取 ComponentId、PlacementId、CellSize，并能在同一个插件服务容器上调用 GetService<T>()。",
-  "widget.subtitle.preview": "预览界面 | 已放置：{0}",
-  "widget.subtitle.placement": "位置 {0} | 已放置：{1}",
-  "common.dev": "开发版",
-  "common.none": "（无）",
-  "common.unknown": "（未知）",
-  "common.true": "是",
-  "common.false": "否",
-  "common.yes": "是",
-  "common.no": "否"
-}

LanAirApp/samples/LanMountainDesktop.SamplePlugin/README.md

@@ -1,9 +0,0 @@
-# LanMountainDesktop.SamplePlugin
-
-## 中文
-
-这是阑山桌面的标准示例插件，用于演示插件清单、设置页、桌面组件、服务注册、本地化和 `.laapp` 打包流程。
-
-## English
-
-This is the standard sample plugin used to demonstrate manifests, settings pages, desktop components, service registration, localization, and `.laapp` packaging.

LanAirApp/samples/LanMountainDesktop.SamplePlugin/SamplePlugin.cs

@@ -1,100 +0,0 @@
-using LanMountainDesktop.PluginSdk;
-
-namespace LanMountainDesktop.SamplePlugin;
-
-[PluginEntrance]
-public sealed class SamplePlugin : PluginBase, IDisposable
-{
-    private SamplePluginRuntimeStateService? _stateService;
-    private SamplePluginClockService? _clockService;
-
-    public override void Initialize(IPluginContext context)
-    {
-        Directory.CreateDirectory(context.DataDirectory);
-        var localizer = PluginLocalizer.Create(context);
-
-        var hostName = GetHostProperty(context, PluginHostPropertyKeys.HostApplicationName, "UnknownHost");
-        var hostVersion = GetHostProperty(context, PluginHostPropertyKeys.HostVersion, "UnknownVersion");
-        var sdkApiVersion = GetHostProperty(context, PluginHostPropertyKeys.PluginSdkApiVersion, "UnknownApiVersion");
-        var messageBus = context.GetService<IPluginMessageBus>()
-            ?? throw new InvalidOperationException("Plugin message bus is not available.");
-
-        _stateService = new SamplePluginRuntimeStateService(
-            context.Manifest,
-            context.PluginDirectory,
-            context.DataDirectory,
-            hostName,
-            hostVersion,
-            sdkApiVersion,
-            messageBus,
-            localizer);
-        context.RegisterService(_stateService);
-
-        _clockService = new SamplePluginClockService(context.DataDirectory, _stateService, messageBus, localizer);
-        context.RegisterService(_clockService);
-        _stateService.AttachClockService(_clockService);
-
-        var logPath = Path.Combine(context.DataDirectory, "sample-plugin.log");
-        var initMessage =
-            $"[{DateTimeOffset.UtcNow:O}] {context.Manifest.Name} initialized in {hostName} (plugin version {context.Manifest.Version ?? "dev"}).";
-
-        try
-        {
-            File.AppendAllText(logPath, initMessage + Environment.NewLine);
-            _stateService.MarkBackendReady(localizer.Format(
-                "status.backend.detail.log_written",
-                "Initialization log written: {0}",
-                logPath));
-        }
-        catch (Exception ex)
-        {
-            _stateService.MarkBackendFaulted(localizer.Format(
-                "status.backend.detail.log_write_failed",
-                "Initialization log failed: {0}",
-                ex.Message));
-            throw;
-        }
-
-        _clockService.Start();
-
-        context.RegisterDesktopComponent(new PluginDesktopComponentRegistration(
-            "LanMountainDesktop.SamplePlugin.StatusClock",
-            localizer.GetString("widget.display_name", "Sample Plugin Status Clock"),
-            widgetContext => new SamplePluginStatusClockWidget(widgetContext),
-            iconKey: "PuzzlePiece",
-            category: localizer.GetString("widget.category", "Plugins"),
-            minWidthCells: 4,
-            minHeightCells: 4,
-            allowDesktopPlacement: true,
-            allowStatusBarPlacement: false,
-            resizeMode: PluginDesktopComponentResizeMode.Proportional,
-            cornerRadiusResolver: cellSize => Math.Clamp(cellSize * 0.34, 18, 34)));
-
-        context.RegisterDesktopComponent(new PluginDesktopComponentRegistration(
-            "LanMountainDesktop.SamplePlugin.CloseDesktop",
-            localizer.GetString("widget.close_desktop.display_name", "Close Desktop"),
-            widgetContext => new SamplePluginCloseDesktopWidget(widgetContext),
-            iconKey: "DismissCircle",
-            category: localizer.GetString("widget.category", "Plugins"),
-            minWidthCells: 2,
-            minHeightCells: 1,
-            allowDesktopPlacement: true,
-            allowStatusBarPlacement: false,
-            resizeMode: PluginDesktopComponentResizeMode.Free,
-            cornerRadiusResolver: cellSize => Math.Clamp(cellSize * 0.28, 14, 22)));
-    }
-
-    public void Dispose()
-    {
-        _clockService?.Dispose();
-        _clockService = null;
-        _stateService = null;
-    }
-
-    private static string GetHostProperty(IPluginContext context, string key, string fallback)
-    {
-        return context.TryGetProperty<string>(key, out var value) && !string.IsNullOrWhiteSpace(value)
-            ? value
-            : fallback;
-    }
-}

LanAirApp/samples/LanMountainDesktop.SamplePlugin/SamplePluginCloseDesktopWidget.cs

@@ -1,166 +0,0 @@
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Layout;
-using Avalonia.Media;
-using LanMountainDesktop.PluginSdk;
-
-namespace LanMountainDesktop.SamplePlugin;
-
-internal sealed class SamplePluginCloseDesktopWidget : Border
-{
-    private readonly PluginLocalizer _localizer;
-    private readonly IHostApplicationLifecycle? _hostApplicationLifecycle;
-    private readonly TextBlock _titleTextBlock;
-    private readonly TextBlock _statusTextBlock;
-
-    public SamplePluginCloseDesktopWidget(PluginDesktopComponentContext context)
-    {
-        _localizer = PluginLocalizer.Create(context);
-        _hostApplicationLifecycle = context.GetService<IHostApplicationLifecycle>();
-
-        _titleTextBlock = new TextBlock
-        {
-            Text = T("widget.close_desktop.text", "关闭桌面"),
-            Foreground = Brushes.White,
-            FontWeight = FontWeight.SemiBold,
-            VerticalAlignment = VerticalAlignment.Center
-        };
-
-        _statusTextBlock = new TextBlock
-        {
-            Text = _hostApplicationLifecycle is null
-                ? T("widget.close_desktop.unavailable", "宿主未提供退出接口")
-                : T("widget.close_desktop.hint", "点击后退出阑山桌面"),
-            Foreground = new SolidColorBrush(Color.Parse("#FFD4E7F6")),
-            VerticalAlignment = VerticalAlignment.Center
-        };
-
-        var contentGrid = new Grid
-        {
-            ColumnDefinitions = new ColumnDefinitions("Auto,*"),
-            ColumnSpacing = 14,
-            VerticalAlignment = VerticalAlignment.Center,
-            Children =
-            {
-                CreateIconShell(),
-                new StackPanel
-                {
-                    Spacing = 2,
-                    VerticalAlignment = VerticalAlignment.Center,
-                    Children =
-                    {
-                        _titleTextBlock,
-                        _statusTextBlock
-                    }
-                }
-            }
-        };
-
-        Grid.SetColumn(contentGrid.Children[1], 1);
-
-        var actionButton = new Button
-        {
-            HorizontalAlignment = HorizontalAlignment.Stretch,
-            VerticalAlignment = VerticalAlignment.Stretch,
-            HorizontalContentAlignment = HorizontalAlignment.Stretch,
-            VerticalContentAlignment = VerticalAlignment.Stretch,
-            Background = Brushes.Transparent,
-            BorderThickness = new Thickness(0),
-            Padding = new Thickness(0),
-            IsEnabled = _hostApplicationLifecycle is not null,
-            Content = contentGrid
-        };
-        actionButton.Click += OnButtonClick;
-
-        Background = new LinearGradientBrush
-        {
-            StartPoint = new RelativePoint(0, 0, RelativeUnit.Relative),
-            EndPoint = new RelativePoint(1, 1, RelativeUnit.Relative),
-            GradientStops =
-            [
-                new GradientStop(Color.Parse("#FF0B1220"), 0),
-                new GradientStop(Color.Parse("#FF172554"), 0.55),
-                new GradientStop(Color.Parse("#FF7F1D1D"), 1)
-            ]
-        };
-        BorderBrush = new SolidColorBrush(Color.Parse("#66FB7185"));
-        BorderThickness = new Thickness(1);
-        CornerRadius = new CornerRadius(18);
-        Padding = new Thickness(14, 10);
-        Child = actionButton;
-
-        SizeChanged += OnSizeChanged;
-        ApplyScale();
-    }
-
-    private Border CreateIconShell()
-    {
-        return new Border
-        {
-            Width = 36,
-            Height = 36,
-            CornerRadius = new CornerRadius(999),
-            Background = new SolidColorBrush(Color.Parse("#33F87171")),
-            BorderBrush = new SolidColorBrush(Color.Parse("#88FCA5A5")),
-            BorderThickness = new Thickness(1),
-            VerticalAlignment = VerticalAlignment.Center,
-            Child = new TextBlock
-            {
-                Text = "⏻",
-                FontSize = 18,
-                Foreground = Brushes.White,
-                HorizontalAlignment = HorizontalAlignment.Center,
-                VerticalAlignment = VerticalAlignment.Center,
-                TextAlignment = TextAlignment.Center
-            }
-        };
-    }
-
-    private void OnButtonClick(object? sender, Avalonia.Interactivity.RoutedEventArgs e)
-    {
-        if (_hostApplicationLifecycle?.TryExit(new HostApplicationLifecycleRequest(
-                Source: "SamplePlugin.CloseDesktopWidget",
-                Reason: "User invoked the sample plugin close-desktop widget.")) == true)
-        {
-            return;
-        }
-
-        _statusTextBlock.Text = T("widget.close_desktop.failed", "宿主未接受退出请求");
-    }
-
-    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
-    {
-        ApplyScale();
-    }
-
-    private void ApplyScale()
-    {
-        var basis = Bounds.Height > 1 ? Bounds.Height : 72;
-        Padding = new Thickness(Math.Clamp(basis * 0.18, 12, 18), Math.Clamp(basis * 0.14, 8, 14));
-        CornerRadius = new CornerRadius(Math.Clamp(basis * 0.32, 16, 24));
-
-        if (Child is not Button actionButton || actionButton.Content is not Grid contentGrid)
-        {
-            return;
-        }
-
-        if (contentGrid.Children[0] is Border iconShell)
-        {
-            var iconSize = Math.Clamp(basis * 0.58, 28, 40);
-            iconShell.Width = iconSize;
-            iconShell.Height = iconSize;
-            if (iconShell.Child is TextBlock iconText)
-            {
-                iconText.FontSize = Math.Clamp(iconSize * 0.5, 14, 20);
-            }
-        }
-
-        _titleTextBlock.FontSize = Math.Clamp(basis * 0.28, 14, 20);
-        _statusTextBlock.FontSize = Math.Clamp(basis * 0.18, 10, 13);
-    }
-
-    private string T(string key, string fallback)
-    {
-        return _localizer.GetString(key, fallback);
-    }
-}

LanAirApp/samples/LanMountainDesktop.SamplePlugin/SamplePluginRuntimeStatus.cs

@@ -1,524 +0,0 @@
-using System.Globalization;
-using System.IO;
-using System.Linq;
-using System.Threading;
-using LanMountainDesktop.PluginSdk;
-
-namespace LanMountainDesktop.SamplePlugin;
-
-internal enum SamplePluginHealthState
-{
-    Healthy,
-    Pending,
-    Faulted
-}
-
-internal sealed record SamplePluginStatusEntry(
-    string Key,
-    string Title,
-    SamplePluginHealthState State,
-    string Summary,
-    string Detail,
-    DateTimeOffset UpdatedAt);
-
-internal sealed record SamplePluginCapabilityItem(
-    string Title,
-    string Detail);
-
-internal sealed record SamplePluginRuntimeSnapshot(
-    PluginManifest Manifest,
-    string PluginDirectory,
-    string DataDirectory,
-    string HostApplicationName,
-    string HostVersion,
-    string SdkApiVersion,
-    IReadOnlyList<SamplePluginStatusEntry> StatusEntries,
-    bool HasPlacedComponent,
-    int PlacedCount,
-    int PreviewCount,
-    IReadOnlyList<string> PlacementIds,
-    string? LastComponentId,
-    double LastCellSize,
-    DateTimeOffset? ServiceClockTime);
-
-internal sealed record SamplePluginClockTickMessage(DateTimeOffset CurrentTime);
-
-internal sealed record SamplePluginStateChangedMessage(string Reason);
-
-internal sealed record SamplePluginComponentInstance(
-    string ComponentId,
-    string? PlacementId,
-    double CellSize)
-{
-    public bool IsPlaced => !string.IsNullOrWhiteSpace(PlacementId);
-}
-
-internal sealed class SamplePluginRuntimeStateService
-{
-    private readonly object _gate = new();
-    private readonly IPluginMessageBus _messageBus;
-    private readonly Dictionary<string, SamplePluginComponentInstance> _componentInstances =
-        new(StringComparer.OrdinalIgnoreCase);
-
-    private readonly PluginManifest _manifest;
-    private readonly string _pluginDirectory;
-    private readonly string _dataDirectory;
-    private readonly string _hostApplicationName;
-    private readonly string _hostVersion;
-    private readonly string _sdkApiVersion;
-    private readonly PluginLocalizer _localizer;
-
-    private SamplePluginStatusEntry _frontend;
-    private SamplePluginStatusEntry _component;
-    private SamplePluginStatusEntry _backend;
-    private SamplePluginStatusEntry _service;
-    private string? _lastComponentId;
-    private double _lastCellSize;
-    private DateTimeOffset? _serviceClockTime;
-
-    public SamplePluginRuntimeStateService(
-        PluginManifest manifest,
-        string pluginDirectory,
-        string dataDirectory,
-        string hostApplicationName,
-        string hostVersion,
-        string sdkApiVersion,
-        IPluginMessageBus messageBus,
-        PluginLocalizer localizer)
-    {
-        _manifest = manifest;
-        _pluginDirectory = pluginDirectory;
-        _dataDirectory = dataDirectory;
-        _hostApplicationName = hostApplicationName;
-        _hostVersion = hostVersion;
-        _sdkApiVersion = sdkApiVersion;
-        _messageBus = messageBus;
-        _localizer = localizer;
-
-        _frontend = CreateEntry(
-            "frontend",
-            T("status.frontend.title", "前端状态"),
-            SamplePluginHealthState.Pending,
-            T("status.summary.pending", "等待中"),
-            T("status.frontend.detail.pending", "等待插件界面接入。"));
-
-        _component = CreateEntry(
-            "component",
-            T("status.component.title", "组件状态"),
-            SamplePluginHealthState.Pending,
-            T("status.summary.pending", "等待中"),
-            T("status.component.detail.pending", "当前还没有创建组件实例。"));
-
-        _backend = CreateEntry(
-            "backend",
-            T("status.backend.title", "后端状态"),
-            SamplePluginHealthState.Pending,
-            T("status.summary.pending", "等待中"),
-            T("status.backend.detail.pending", "插件初始化进行中。"));
-
-        _service = CreateEntry(
-            "service",
-            T("status.service.title", "时钟服务"),
-            SamplePluginHealthState.Pending,
-            T("status.summary.pending", "等待中"),
-            T("status.service.detail.pending", "时钟服务尚未挂接。"));
-    }
-
-    public void AttachClockService(SamplePluginClockService clockService)
-    {
-        ArgumentNullException.ThrowIfNull(clockService);
-
-        lock (_gate)
-        {
-            _serviceClockTime = clockService.CurrentTime;
-            _service = CreateEntry(
-                "service",
-                T("status.service.title", "时钟服务"),
-                SamplePluginHealthState.Pending,
-                T("status.summary.attached", "已挂接"),
-                T("status.service.detail.attached", "时钟服务已挂接，正在等待第一次心跳。"));
-        }
-
-        PublishStateChanged("Clock service attached");
-    }
-
-    public void MarkFrontendReady(string detail)
-    {
-        lock (_gate)
-        {
-            _frontend = CreateEntry(
-                "frontend",
-                T("status.frontend.title", "前端状态"),
-                SamplePluginHealthState.Healthy,
-                T("status.summary.healthy", "正常"),
-                detail);
-        }
-
-        PublishStateChanged("Frontend updated");
-    }
-
-    public void MarkBackendReady(string detail)
-    {
-        lock (_gate)
-        {
-            _backend = CreateEntry(
-                "backend",
-                T("status.backend.title", "后端状态"),
-                SamplePluginHealthState.Healthy,
-                T("status.summary.healthy", "正常"),
-                detail);
-        }
-
-        PublishStateChanged("Backend updated");
-    }
-
-    public void MarkBackendFaulted(string detail)
-    {
-        lock (_gate)
-        {
-            _backend = CreateEntry(
-                "backend",
-                T("status.backend.title", "后端状态"),
-                SamplePluginHealthState.Faulted,
-                T("status.summary.faulted", "异常"),
-                detail);
-        }
-
-        PublishStateChanged("Backend faulted");
-    }
-
-    public void MarkClockServiceTick(DateTimeOffset currentTime)
-    {
-        lock (_gate)
-        {
-            _serviceClockTime = currentTime;
-            _service = CreateEntry(
-                "service",
-                T("status.service.title", "时钟服务"),
-                SamplePluginHealthState.Healthy,
-                T("status.summary.healthy", "正常"),
-                Tf(
-                    "status.service.detail.running",
-                    "时钟服务运行中，当前服务时间：{0}",
-                    currentTime.LocalDateTime.ToString("HH:mm:ss")));
-        }
-
-        PublishStateChanged("Clock service tick");
-    }
-
-    public void MarkClockServiceFaulted(string detail)
-    {
-        lock (_gate)
-        {
-            _service = CreateEntry(
-                "service",
-                T("status.service.title", "时钟服务"),
-                SamplePluginHealthState.Faulted,
-                T("status.summary.faulted", "异常"),
-                detail);
-        }
-
-        PublishStateChanged("Clock service faulted");
-    }
-
-    public string RegisterComponentInstance(string componentId, string? placementId, double cellSize)
-    {
-        var instanceId = Guid.NewGuid().ToString("N");
-
-        lock (_gate)
-        {
-            _componentInstances[instanceId] = new SamplePluginComponentInstance(componentId, placementId, cellSize);
-            _lastComponentId = componentId;
-            _lastCellSize = cellSize;
-            UpdateComponentStatusNoLock();
-        }
-
-        PublishStateChanged("Component attached");
-        return instanceId;
-    }
-
-    public void UnregisterComponentInstance(string instanceId)
-    {
-        ArgumentException.ThrowIfNullOrWhiteSpace(instanceId);
-
-        var removed = false;
-        lock (_gate)
-        {
-            removed = _componentInstances.Remove(instanceId);
-            if (removed)
-            {
-                UpdateComponentStatusNoLock();
-            }
-        }
-
-        if (removed)
-        {
-            PublishStateChanged("Component detached");
-        }
-    }
-
-    public SamplePluginRuntimeSnapshot GetSnapshot()
-    {
-        lock (_gate)
-        {
-            var placementIds = _componentInstances.Values
-                .Where(instance => instance.IsPlaced)
-                .Select(instance => instance.PlacementId!)
-                .Distinct(StringComparer.OrdinalIgnoreCase)
-                .OrderBy(id => id, StringComparer.OrdinalIgnoreCase)
-                .ToArray();
-
-            var previewCount = _componentInstances.Values.Count(instance => !instance.IsPlaced);
-
-            return new SamplePluginRuntimeSnapshot(
-                _manifest,
-                _pluginDirectory,
-                _dataDirectory,
-                _hostApplicationName,
-                _hostVersion,
-                _sdkApiVersion,
-                [_frontend, _component, _backend, _service],
-                placementIds.Length > 0,
-                placementIds.Length,
-                previewCount,
-                placementIds,
-                _lastComponentId,
-                _lastCellSize,
-                _serviceClockTime);
-        }
-    }
-
-    public IReadOnlyList<SamplePluginCapabilityItem> GetCapabilities(
-        IPluginContext context,
-        bool hasStateService,
-        bool hasClockService,
-        bool hasMessageBus)
-    {
-        ArgumentNullException.ThrowIfNull(context);
-
-        var propertyNames = context.Properties.Count == 0
-            ? T("common.none", "（无）")
-            : string.Join(", ", context.Properties.Keys.OrderBy(key => key, StringComparer.OrdinalIgnoreCase));
-
-        return
-        [
-            new SamplePluginCapabilityItem(
-                T("capability.manifest.title", "IPluginContext.Manifest"),
-                Tf(
-                    "capability.manifest.detail",
-                    "可读取。当前插件 id：{0}；版本：{1}。",
-                    context.Manifest.Id,
-                    context.Manifest.Version ?? T("common.dev", "开发版"))),
-            new SamplePluginCapabilityItem(
-                T("capability.directories.title", "IPluginContext.PluginDirectory / DataDirectory"),
-                Tf(
-                    "capability.directories.detail",
-                    "可读取。插件目录：{0}；数据目录：{1}。",
-                    context.PluginDirectory,
-                    context.DataDirectory)),
-            new SamplePluginCapabilityItem(
-                T("capability.properties.title", "IPluginContext.Properties"),
-                Tf(
-                    "capability.properties.detail",
-                    "可读取。宿主当前暴露的属性：{0}。",
-                    propertyNames)),
-            new SamplePluginCapabilityItem(
-                T("capability.get_service.title", "IPluginContext.GetService<T>()"),
-                Tf(
-                    "capability.get_service.detail",
-                    "可调用。状态服务已解析：{0}；时钟服务已解析：{1}；消息总线已解析：{2}。",
-                    FormatBoolean(hasStateService),
-                    FormatBoolean(hasClockService),
-                    FormatBoolean(hasMessageBus))),
-            new SamplePluginCapabilityItem(
-                T("capability.register_service.title", "IPluginContext.RegisterService<TService>()"),
-                T(
-                    "capability.register_service.detail",
-                    "可在插件初始化阶段调用。这个示例插件会把 SamplePluginRuntimeStateService 和 SamplePluginClockService 注册进插件服务容器。")),
-            new SamplePluginCapabilityItem(
-                T("capability.message_bus.title", "插件通信总线"),
-                T(
-                    "capability.message_bus.detail",
-                    "这个示例插件通过 IPluginMessageBus 向插件 UI 推送时钟心跳和状态变化通知。")),
-            new SamplePluginCapabilityItem(
-                T("capability.widget_context.title", "PluginDesktopComponentContext"),
-                T(
-                    "capability.widget_context.detail",
-                    "组件可以读取 ComponentId、PlacementId、CellSize，并能在同一个插件服务容器上调用 GetService<T>()。"))
-        ];
-    }
-
-    private void UpdateComponentStatusNoLock()
-    {
-        var placementIds = _componentInstances.Values
-            .Where(instance => instance.IsPlaced)
-            .Select(instance => instance.PlacementId!)
-            .Distinct(StringComparer.OrdinalIgnoreCase)
-            .OrderBy(id => id, StringComparer.OrdinalIgnoreCase)
-            .ToArray();
-
-        var previewCount = _componentInstances.Values.Count(instance => !instance.IsPlaced);
-
-        if (placementIds.Length > 0)
-        {
-            _component = CreateEntry(
-                "component",
-                T("status.component.title", "组件状态"),
-                SamplePluginHealthState.Healthy,
-                T("status.summary.placed", "已放置"),
-                Tf(
-                    "status.component.detail.placed",
-                    "已放置数量：{0}；预览数量：{1}；放置位置：{2}",
-                    placementIds.Length,
-                    previewCount,
-                    string.Join(", ", placementIds)));
-            return;
-        }
-
-        if (previewCount > 0)
-        {
-            _component = CreateEntry(
-                "component",
-                T("status.component.title", "组件状态"),
-                SamplePluginHealthState.Healthy,
-                T("status.summary.preview", "预览中"),
-                Tf(
-                    "status.component.detail.preview",
-                    "当前预览实例数量：{0}；尚未有已放置的桌面实例。",
-                    previewCount));
-            return;
-        }
-
-        _component = CreateEntry(
-            "component",
-            T("status.component.title", "组件状态"),
-            SamplePluginHealthState.Pending,
-            T("status.summary.pending", "等待中"),
-            T("status.component.detail.none", "当前没有活动中的组件实例。"));
-    }
-
-    private void PublishStateChanged(string reason)
-    {
-        _messageBus.Publish(new SamplePluginStateChangedMessage(reason));
-    }
-
-    private static SamplePluginStatusEntry CreateEntry(
-        string key,
-        string title,
-        SamplePluginHealthState state,
-        string summary,
-        string detail)
-    {
-        return new SamplePluginStatusEntry(
-            key,
-            title,
-            state,
-            summary,
-            detail,
-            DateTimeOffset.Now);
-    }
-
-    private string T(string key, string fallback)
-    {
-        return _localizer.GetString(key, fallback);
-    }
-
-    private string Tf(string key, string fallback, params object[] args)
-    {
-        return _localizer.Format(key, fallback, args);
-    }
-
-    private string FormatBoolean(bool value)
-    {
-        return value
-            ? T("common.true", "是")
-            : T("common.false", "否");
-    }
-}
-
-internal sealed class SamplePluginClockService : IDisposable
-{
-    private readonly object _gate = new();
-    private readonly string _clockStateFilePath;
-    private readonly SamplePluginRuntimeStateService _stateService;
-    private readonly IPluginMessageBus _messageBus;
-    private readonly PluginLocalizer _localizer;
-    private readonly Timer _timer;
-    private DateTimeOffset _currentTime = DateTimeOffset.Now;
-    private int _disposed;
-
-    public SamplePluginClockService(
-        string dataDirectory,
-        SamplePluginRuntimeStateService stateService,
-        IPluginMessageBus messageBus,
-        PluginLocalizer localizer)
-    {
-        _clockStateFilePath = Path.Combine(dataDirectory, "clock-service.txt");
-        _stateService = stateService;
-        _messageBus = messageBus;
-        _localizer = localizer;
-        _timer = new Timer(OnTimerTick);
-    }
-
-    public DateTimeOffset CurrentTime
-    {
-        get
-        {
-            lock (_gate)
-            {
-                return _currentTime;
-            }
-        }
-    }
-
-    public void Start()
-    {
-        PublishTick();
-        _timer.Change(TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(1));
-    }
-
-    public void Dispose()
-    {
-        if (Interlocked.Exchange(ref _disposed, 1) != 0)
-        {
-            return;
-        }
-
-        _timer.Dispose();
-    }
-
-    private void OnTimerTick(object? state)
-    {
-        PublishTick();
-    }
-
-    private void PublishTick()
-    {
-        if (Volatile.Read(ref _disposed) != 0)
-        {
-            return;
-        }
-
-        var now = DateTimeOffset.Now;
-        lock (_gate)
-        {
-            _currentTime = now;
-        }
-
-        try
-        {
-            File.WriteAllText(
-                _clockStateFilePath,
-                now.ToString("O", CultureInfo.InvariantCulture));
-            _stateService.MarkClockServiceTick(now);
-            _messageBus.Publish(new SamplePluginClockTickMessage(now));
-        }
-        catch (Exception ex)
-        {
-            _stateService.MarkClockServiceFaulted(_localizer.Format(
-                "status.service.detail.write_failed",
-                "时钟状态写入失败：{0}",
-                ex.Message));
-        }
-    }
-}

LanAirApp/samples/LanMountainDesktop.SamplePlugin/SamplePluginSettingsView.cs

@@ -1,374 +0,0 @@
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Layout;
-using Avalonia.Media;
-using Avalonia.Threading;
-using LanMountainDesktop.PluginSdk;
-
-namespace LanMountainDesktop.SamplePlugin;
-
-internal sealed class SamplePluginSettingsView : UserControl
-{
-    private readonly IPluginContext _context;
-    private readonly PluginLocalizer _localizer;
-    private readonly SamplePluginRuntimeStateService _stateService;
-    private readonly SamplePluginClockService _clockService;
-    private readonly IPluginMessageBus _messageBus;
-    private readonly StackPanel _pluginInfoPanel = new() { Spacing = 8 };
-    private readonly StackPanel _capabilityPanel = new() { Spacing = 8 };
-    private readonly StackPanel _statusPanel = new() { Spacing = 10 };
-    private readonly List<IDisposable> _subscriptions = [];
-
-    public SamplePluginSettingsView(IPluginContext context)
-    {
-        _context = context;
-        _localizer = PluginLocalizer.Create(context);
-        _stateService = context.GetService<SamplePluginRuntimeStateService>()
-            ?? throw new InvalidOperationException("SamplePluginRuntimeStateService is not available.");
-        _clockService = context.GetService<SamplePluginClockService>()
-            ?? throw new InvalidOperationException("SamplePluginClockService is not available.");
-        _messageBus = context.GetService<IPluginMessageBus>()
-            ?? throw new InvalidOperationException("IPluginMessageBus is not available.");
-
-        _stateService.MarkFrontendReady(T(
-            "status.frontend.detail.settings_connected",
-            "设置页已接入插件服务与通信。"));
-
-        AttachedToVisualTree += OnAttachedToVisualTree;
-        DetachedFromVisualTree += OnDetachedFromVisualTree;
-
-        Content = new Border
-        {
-            Background = new LinearGradientBrush
-            {
-                StartPoint = new RelativePoint(0, 0, RelativeUnit.Relative),
-                EndPoint = new RelativePoint(1, 1, RelativeUnit.Relative),
-                GradientStops =
-                [
-                    new GradientStop(Color.Parse("#1F0B1120"), 0),
-                    new GradientStop(Color.Parse("#260C4A6E"), 1)
-                ]
-            },
-            BorderBrush = new SolidColorBrush(Color.Parse("#6628B2FF")),
-            BorderThickness = new Thickness(1),
-            CornerRadius = new CornerRadius(18),
-            Padding = new Thickness(18),
-            Child = new StackPanel
-            {
-                Spacing = 14,
-                Children =
-                {
-                    new TextBlock
-                    {
-                        Text = T("settings.header.title", "示例插件能力检查器"),
-                        FontSize = 22,
-                        FontWeight = FontWeight.SemiBold,
-                        Foreground = Brushes.White
-                    },
-                    CreateSection(T("settings.section.info", "插件信息"), _pluginInfoPanel),
-                    CreateSection(T("settings.section.capabilities", "可访问能力"), _capabilityPanel),
-                    CreateSection(T("settings.section.status", "实时运行状态"), _statusPanel)
-                }
-            }
-        };
-
-        RefreshView();
-    }
-
-    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
-    {
-        SubscribeToPluginBus();
-        RefreshView();
-    }
-
-    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
-    {
-        foreach (var subscription in _subscriptions)
-        {
-            subscription.Dispose();
-        }
-
-        _subscriptions.Clear();
-    }
-
-    private void SubscribeToPluginBus()
-    {
-        if (_subscriptions.Count > 0)
-        {
-            return;
-        }
-
-        _subscriptions.Add(_messageBus.Subscribe<SamplePluginClockTickMessage>(_ =>
-            Dispatcher.UIThread.Post(RefreshView)));
-
-        _subscriptions.Add(_messageBus.Subscribe<SamplePluginStateChangedMessage>(_ =>
-            Dispatcher.UIThread.Post(RefreshView)));
-    }
-
-    private void RefreshView()
-    {
-        var snapshot = _stateService.GetSnapshot();
-        RefreshPluginInfo(snapshot);
-        RefreshCapabilities();
-        RefreshStatuses(snapshot);
-    }
-
-    private void RefreshPluginInfo(SamplePluginRuntimeSnapshot snapshot)
-    {
-        _pluginInfoPanel.Children.Clear();
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.plugin_name", "插件名称"),
-            T("plugin.name", snapshot.Manifest.Name)));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.plugin_id", "插件 Id"), snapshot.Manifest.Id));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.version", "版本"), snapshot.Manifest.Version ?? T("common.dev", "开发版")));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.author", "作者"), snapshot.Manifest.Author ?? T("common.none", "（无）")));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.description", "描述"),
-            T("plugin.description", snapshot.Manifest.Description ?? T("common.none", "（无）"))));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.plugin_directory", "插件目录"), snapshot.PluginDirectory));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.data_directory", "数据目录"), snapshot.DataDirectory));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.host_application", "宿主应用"), snapshot.HostApplicationName));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.host_version", "宿主版本"), snapshot.HostVersion));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.sdk_api_version", "SDK API 版本"), snapshot.SdkApiVersion));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.state_service_resolved", "状态服务已解析"),
-            FormatBoolean(_context.GetService<SamplePluginRuntimeStateService>() is not null)));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.clock_service_resolved", "时钟服务已解析"),
-            FormatBoolean(_context.GetService<SamplePluginClockService>() is not null)));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.message_bus_resolved", "消息总线已解析"),
-            FormatBoolean(_context.GetService<IPluginMessageBus>() is not null)));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.component_placed", "组件是否已放置"),
-            snapshot.HasPlacedComponent ? T("common.yes", "是") : T("common.no", "否")));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.placed_count", "已放置数量"), snapshot.PlacedCount.ToString()));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(T("settings.info.preview_count", "预览数量"), snapshot.PreviewCount.ToString()));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.placement_ids", "放置位置 Id"),
-            snapshot.PlacementIds.Count == 0 ? T("common.none", "（无）") : string.Join(", ", snapshot.PlacementIds)));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.last_component_id", "最近组件 Id"),
-            snapshot.LastComponentId ?? T("common.none", "（无）")));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.last_cell_size", "最近单元尺寸"),
-            snapshot.LastCellSize > 0 ? $"{snapshot.LastCellSize:F0}px" : T("common.unknown", "（未知）")));
-        _pluginInfoPanel.Children.Add(CreateInfoLine(
-            T("settings.info.clock_service_time", "时钟服务时间"),
-            _clockService.CurrentTime.LocalDateTime.ToString("HH:mm:ss")));
-    }
-
-    private void RefreshCapabilities()
-    {
-        var capabilities = _stateService.GetCapabilities(
-            _context,
-            _context.GetService<SamplePluginRuntimeStateService>() is not null,
-            _context.GetService<SamplePluginClockService>() is not null,
-            _context.GetService<IPluginMessageBus>() is not null);
-
-        _capabilityPanel.Children.Clear();
-        foreach (var capability in capabilities)
-        {
-            _capabilityPanel.Children.Add(CreateCapabilityCard(capability));
-        }
-    }
-
-    private void RefreshStatuses(SamplePluginRuntimeSnapshot snapshot)
-    {
-        _statusPanel.Children.Clear();
-
-        foreach (var entry in snapshot.StatusEntries)
-        {
-            var palette = GetPalette(entry.State);
-            _statusPanel.Children.Add(new Border
-            {
-                Background = new SolidColorBrush(palette.Background),
-                BorderBrush = new SolidColorBrush(palette.Border),
-                BorderThickness = new Thickness(1),
-                CornerRadius = new CornerRadius(12),
-                Padding = new Thickness(12, 10),
-                Child = new StackPanel
-                {
-                    Spacing = 4,
-                    Children =
-                    {
-                        CreateStatusHeader(entry, palette),
-                        new TextBlock
-                        {
-                            Text = entry.Detail,
-                            Foreground = new SolidColorBrush(Color.Parse("#FFE0F2FE")),
-                            TextWrapping = TextWrapping.Wrap
-                        },
-                        new TextBlock
-                        {
-                            Text = Tf("settings.status.updated_at", "更新时间：{0}", entry.UpdatedAt.LocalDateTime.ToString("HH:mm:ss")),
-                            Foreground = new SolidColorBrush(Color.Parse("#FF93C5FD"))
-                        }
-                    }
-                }
-            });
-        }
-    }
-
-    private Border CreateSection(string title, Control content)
-    {
-        return new Border
-        {
-            Background = new SolidColorBrush(Color.Parse("#14000000")),
-            BorderBrush = new SolidColorBrush(Color.Parse("#3328B2FF")),
-            BorderThickness = new Thickness(1),
-            CornerRadius = new CornerRadius(14),
-            Padding = new Thickness(14),
-            Child = new StackPanel
-            {
-                Spacing = 12,
-                Children =
-                {
-                    new TextBlock
-                    {
-                        Text = title,
-                        FontSize = 16,
-                        FontWeight = FontWeight.SemiBold,
-                        Foreground = Brushes.White
-                    },
-                    content
-                }
-            }
-        };
-    }
-
-    private Control CreateInfoLine(string label, string value)
-    {
-        var grid = new Grid
-        {
-            ColumnDefinitions = new ColumnDefinitions("180,*"),
-            ColumnSpacing = 10
-        };
-
-        var labelText = new TextBlock
-        {
-            Text = label,
-            Foreground = new SolidColorBrush(Color.Parse("#FFBAE6FD")),
-            FontWeight = FontWeight.SemiBold,
-            TextWrapping = TextWrapping.Wrap
-        };
-        var valueText = new TextBlock
-        {
-            Text = value,
-            Foreground = Brushes.White,
-            TextWrapping = TextWrapping.Wrap
-        };
-
-        grid.Children.Add(labelText);
-        grid.Children.Add(valueText);
-        Grid.SetColumn(valueText, 1);
-        return grid;
-    }
-
-    private Control CreateCapabilityCard(SamplePluginCapabilityItem item)
-    {
-        return new Border
-        {
-            Background = new SolidColorBrush(Color.Parse("#0F082F49")),
-            BorderBrush = new SolidColorBrush(Color.Parse("#3338BDF8")),
-            BorderThickness = new Thickness(1),
-            CornerRadius = new CornerRadius(12),
-            Padding = new Thickness(12, 10),
-            Child = new StackPanel
-            {
-                Spacing = 4,
-                Children =
-                {
-                    new TextBlock
-                    {
-                        Text = item.Title,
-                        Foreground = Brushes.White,
-                        FontWeight = FontWeight.SemiBold
-                    },
-                    new TextBlock
-                    {
-                        Text = item.Detail,
-                        Foreground = new SolidColorBrush(Color.Parse("#FFE0F2FE")),
-                        TextWrapping = TextWrapping.Wrap
-                    }
-                }
-            }
-        };
-    }
-
-    private static Control CreateStatusHeader(
-        SamplePluginStatusEntry entry,
-        (Color Background, Color Border, Color Dot) palette)
-    {
-        var grid = new Grid
-        {
-            ColumnDefinitions = new ColumnDefinitions("Auto,*,Auto"),
-            ColumnSpacing = 8
-        };
-
-        var dot = new Border
-        {
-            Width = 10,
-            Height = 10,
-            CornerRadius = new CornerRadius(999),
-            Background = new SolidColorBrush(palette.Dot),
-            VerticalAlignment = VerticalAlignment.Center
-        };
-        var title = new TextBlock
-        {
-            Text = entry.Title,
-            FontSize = 15,
-            FontWeight = FontWeight.SemiBold,
-            Foreground = Brushes.White
-        };
-        var summary = new TextBlock
-        {
-            Text = entry.Summary,
-            Foreground = new SolidColorBrush(Color.Parse("#FFD7F2FF")),
-            HorizontalAlignment = HorizontalAlignment.Right
-        };
-
-        grid.Children.Add(dot);
-        grid.Children.Add(title);
-        grid.Children.Add(summary);
-        Grid.SetColumn(title, 1);
-        Grid.SetColumn(summary, 2);
-        return grid;
-    }
-
-    private static (Color Background, Color Border, Color Dot) GetPalette(SamplePluginHealthState state)
-    {
-        return state switch
-        {
-            SamplePluginHealthState.Healthy => (
-                Color.Parse("#1F115E59"),
-                Color.Parse("#665EEAD4"),
-                Color.Parse("#5EEAD4")),
-            SamplePluginHealthState.Faulted => (
-                Color.Parse("#291B1B"),
-                Color.Parse("#66F87171"),
-                Color.Parse("#F87171")),
-            _ => (
-                Color.Parse("#2B3A2A0D"),
-                Color.Parse("#66FBBF24"),
-                Color.Parse("#FBBF24"))
-        };
-    }
-
-    private string T(string key, string fallback)
-    {
-        return _localizer.GetString(key, fallback);
-    }
-
-    private string Tf(string key, string fallback, params object[] args)
-    {
-        return _localizer.Format(key, fallback, args);
-    }
-
-    private string FormatBoolean(bool value)
-    {
-        return value
-            ? T("common.true", "是")
-            : T("common.false", "否");
-    }
-}

LanAirApp/samples/LanMountainDesktop.SamplePlugin/SamplePluginStatusClockWidget.cs

@@ -1,298 +0,0 @@
-using Avalonia;
-using Avalonia.Controls;
-using Avalonia.Layout;
-using Avalonia.Media;
-using Avalonia.Threading;
-using LanMountainDesktop.PluginSdk;
-
-namespace LanMountainDesktop.SamplePlugin;
-
-internal sealed class SamplePluginStatusClockWidget : Border
-{
-    private readonly PluginDesktopComponentContext _context;
-    private readonly PluginLocalizer _localizer;
-    private readonly SamplePluginRuntimeStateService _stateService;
-    private readonly SamplePluginClockService _clockService;
-    private readonly IPluginMessageBus _messageBus;
-    private readonly TextBlock _timeTextBlock;
-    private readonly TextBlock _subtitleTextBlock;
-    private readonly StackPanel _statusPanel;
-    private readonly Border _statusHost;
-    private readonly List<IDisposable> _subscriptions = [];
-    private string? _instanceId;
-
-    public SamplePluginStatusClockWidget(PluginDesktopComponentContext context)
-    {
-        _context = context;
-        _localizer = PluginLocalizer.Create(context);
-        _stateService = context.GetService<SamplePluginRuntimeStateService>()
-            ?? throw new InvalidOperationException("SamplePluginRuntimeStateService is not available.");
-        _clockService = context.GetService<SamplePluginClockService>()
-            ?? throw new InvalidOperationException("SamplePluginClockService is not available.");
-        _messageBus = context.GetService<IPluginMessageBus>()
-            ?? throw new InvalidOperationException("IPluginMessageBus is not available.");
-
-        _timeTextBlock = new TextBlock
-        {
-            Foreground = Brushes.White,
-            FontWeight = FontWeight.Bold,
-            HorizontalAlignment = HorizontalAlignment.Left
-        };
-        _subtitleTextBlock = new TextBlock
-        {
-            Foreground = new SolidColorBrush(Color.Parse("#FFBFE9FF")),
-            HorizontalAlignment = HorizontalAlignment.Left,
-            TextWrapping = TextWrapping.Wrap
-        };
-        _statusPanel = new StackPanel
-        {
-            Spacing = 8
-        };
-        _statusHost = new Border
-        {
-            Background = new SolidColorBrush(Color.Parse("#1F082F49")),
-            BorderBrush = new SolidColorBrush(Color.Parse("#5538BDF8")),
-            BorderThickness = new Thickness(1),
-            Child = _statusPanel
-        };
-
-        Background = new LinearGradientBrush
-        {
-            StartPoint = new RelativePoint(0, 0, RelativeUnit.Relative),
-            EndPoint = new RelativePoint(1, 1, RelativeUnit.Relative),
-            GradientStops =
-            [
-                new GradientStop(Color.Parse("#FF07111F"), 0),
-                new GradientStop(Color.Parse("#FF0C4A6E"), 0.55),
-                new GradientStop(Color.Parse("#FF0EA5E9"), 1)
-            ]
-        };
-        BorderBrush = new SolidColorBrush(Color.Parse("#6648C7FF"));
-        BorderThickness = new Thickness(1);
-        HorizontalAlignment = HorizontalAlignment.Stretch;
-        VerticalAlignment = VerticalAlignment.Stretch;
-        Child = new Grid
-        {
-            RowDefinitions = new RowDefinitions("Auto,*"),
-            RowSpacing = 14,
-            Children =
-            {
-                new StackPanel
-                {
-                    Spacing = 4,
-                    HorizontalAlignment = HorizontalAlignment.Left,
-                    Children =
-                    {
-                        _timeTextBlock,
-                        _subtitleTextBlock
-                    }
-                },
-                _statusHost
-            }
-        };
-
-        Grid.SetRow(((Grid)Child).Children[1], 1);
-
-        AttachedToVisualTree += OnAttachedToVisualTree;
-        DetachedFromVisualTree += OnDetachedFromVisualTree;
-        SizeChanged += OnSizeChanged;
-
-        RefreshClock(_clockService.CurrentTime);
-        UpdateSubtitle();
-        RefreshStatusPanel();
-        ApplyScale();
-    }
-
-    private void OnAttachedToVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
-    {
-        if (string.IsNullOrWhiteSpace(_instanceId))
-        {
-            _instanceId = _stateService.RegisterComponentInstance(
-                _context.ComponentId,
-                _context.PlacementId,
-                _context.CellSize);
-        }
-
-        _stateService.MarkFrontendReady(T(
-            "status.frontend.detail.widget_connected",
-            "组件界面已接入插件服务与通信。"));
-        SubscribeToPluginBus();
-
-        RefreshClock(_clockService.CurrentTime);
-        UpdateSubtitle();
-        RefreshStatusPanel();
-    }
-
-    private void OnDetachedFromVisualTree(object? sender, VisualTreeAttachmentEventArgs e)
-    {
-        foreach (var subscription in _subscriptions)
-        {
-            subscription.Dispose();
-        }
-
-        _subscriptions.Clear();
-
-        if (string.IsNullOrWhiteSpace(_instanceId))
-        {
-            return;
-        }
-
-        _stateService.UnregisterComponentInstance(_instanceId);
-        _instanceId = null;
-    }
-
-    private void OnSizeChanged(object? sender, SizeChangedEventArgs e)
-    {
-        ApplyScale();
-        RefreshStatusPanel();
-    }
-
-    private void SubscribeToPluginBus()
-    {
-        if (_subscriptions.Count > 0)
-        {
-            return;
-        }
-
-        _subscriptions.Add(_messageBus.Subscribe<SamplePluginClockTickMessage>(message =>
-            Dispatcher.UIThread.Post(() => RefreshClock(message.CurrentTime))));
-
-        _subscriptions.Add(_messageBus.Subscribe<SamplePluginStateChangedMessage>(_ =>
-            Dispatcher.UIThread.Post(() =>
-            {
-                UpdateSubtitle();
-                RefreshStatusPanel();
-            })));
-    }
-
-    private void RefreshClock(DateTimeOffset currentTime)
-    {
-        _timeTextBlock.Text = currentTime.LocalDateTime.ToString("HH:mm:ss");
-    }
-
-    private void UpdateSubtitle()
-    {
-        var snapshot = _stateService.GetSnapshot();
-        _subtitleTextBlock.Text = string.IsNullOrWhiteSpace(_context.PlacementId)
-            ? Tf("widget.subtitle.preview", "预览界面 | 已放置：{0}", snapshot.PlacedCount)
-            : Tf("widget.subtitle.placement", "位置 {0} | 已放置：{1}", _context.PlacementId!, snapshot.PlacedCount);
-    }
-
-    private void RefreshStatusPanel()
-    {
-        _statusPanel.Children.Clear();
-
-        var snapshot = _stateService.GetSnapshot();
-        var basis = GetLayoutBasis();
-        var titleSize = Math.Clamp(basis * 0.068, 11, 16);
-        var detailSize = Math.Clamp(basis * 0.052, 9, 13);
-
-        foreach (var entry in snapshot.StatusEntries)
-        {
-            var palette = GetPalette(entry.State);
-            _statusPanel.Children.Add(new Border
-            {
-                Background = new SolidColorBrush(palette.Background),
-                BorderBrush = new SolidColorBrush(palette.Border),
-                BorderThickness = new Thickness(1),
-                CornerRadius = new CornerRadius(12),
-                Padding = new Thickness(10, 8),
-                Child = new Grid
-                {
-                    RowDefinitions = new RowDefinitions("Auto,Auto"),
-                    ColumnDefinitions = new ColumnDefinitions("Auto,*,Auto"),
-                    ColumnSpacing = 8,
-                    Children =
-                    {
-                        new Border
-                        {
-                            Width = Math.Clamp(basis * 0.038, 8, 11),
-                            Height = Math.Clamp(basis * 0.038, 8, 11),
-                            CornerRadius = new CornerRadius(999),
-                            Background = new SolidColorBrush(palette.Dot),
-                            VerticalAlignment = VerticalAlignment.Center
-                        },
-                        new TextBlock
-                        {
-                            Text = entry.Title,
-                            FontSize = titleSize,
-                            FontWeight = FontWeight.SemiBold,
-                            Foreground = Brushes.White,
-                            TextWrapping = TextWrapping.Wrap
-                        },
-                        new TextBlock
-                        {
-                            Text = entry.Summary,
-                            FontSize = detailSize,
-                            Foreground = new SolidColorBrush(Color.Parse("#FFD7F2FF")),
-                            HorizontalAlignment = HorizontalAlignment.Right,
-                            TextAlignment = TextAlignment.Right,
-                            VerticalAlignment = VerticalAlignment.Center
-                        },
-                        new TextBlock
-                        {
-                            Text = entry.Detail,
-                            FontSize = detailSize,
-                            Foreground = new SolidColorBrush(Color.Parse("#FFD7F2FF")),
-                            TextWrapping = TextWrapping.Wrap
-                        }
-                    }
-                }
-            });
-
-            var row = (Grid)((Border)_statusPanel.Children[^1]).Child!;
-            Grid.SetColumn(row.Children[1], 1);
-            Grid.SetColumn(row.Children[2], 2);
-            Grid.SetColumnSpan(row.Children[3], 3);
-            Grid.SetRow(row.Children[3], 1);
-        }
-    }
-
-    private void ApplyScale()
-    {
-        var basis = GetLayoutBasis();
-        Padding = new Thickness(Math.Clamp(basis * 0.09, 16, 26));
-        CornerRadius = new CornerRadius(Math.Clamp(basis * 0.14, 20, 34));
-        _timeTextBlock.FontSize = Math.Clamp(basis * 0.22, 30, 58);
-        _subtitleTextBlock.FontSize = Math.Clamp(basis * 0.062, 11, 17);
-        _statusHost.Padding = new Thickness(Math.Clamp(basis * 0.045, 10, 18));
-        _statusHost.CornerRadius = new CornerRadius(Math.Clamp(basis * 0.09, 14, 22));
-        _statusPanel.Spacing = Math.Clamp(basis * 0.024, 6, 10);
-    }
-
-    private double GetLayoutBasis()
-    {
-        var width = Bounds.Width > 1 ? Bounds.Width : _context.CellSize * 4;
-        var height = Bounds.Height > 1 ? Bounds.Height : _context.CellSize * 4;
-        return Math.Max(_context.CellSize * 4, Math.Min(width, height));
-    }
-
-    private static (Color Background, Color Border, Color Dot) GetPalette(SamplePluginHealthState state)
-    {
-        return state switch
-        {
-            SamplePluginHealthState.Healthy => (
-                Color.Parse("#1F0F766E"),
-                Color.Parse("#4D5EEAD4"),
-                Color.Parse("#5EEAD4")),
-            SamplePluginHealthState.Faulted => (
-                Color.Parse("#29B91C1C"),
-                Color.Parse("#66F87171"),
-                Color.Parse("#F87171")),
-            _ => (
-                Color.Parse("#1F7C2D12"),
-                Color.Parse("#66FDBA74"),
-                Color.Parse("#FDBA74"))
-        };
-    }
-
-    private string T(string key, string fallback)
-    {
-        return _localizer.GetString(key, fallback);
-    }
-
-    private string Tf(string key, string fallback, params object[] args)
-    {
-        return _localizer.Format(key, fallback, args);
-    }
-}

LanAirApp/samples/LanMountainDesktop.SamplePlugin/plugin.json

@@ -1,9 +0,0 @@
-{
-  "id": "LanMountainDesktop.SamplePlugin",
-  "name": "LanMountain Sample Plugin",
-  "description": "Example plugin used to validate PluginSdk loading and isolation.",
-  "author": "LanMountainDesktop",
-  "version": "1.0.0",
-  "apiVersion": "1.0.0",
-  "entranceAssembly": "LanMountainDesktop.SamplePlugin.dll"
-}

LanAirApp/samples/README.md

@@ -1,11 +0,0 @@
-# 示例插件目录
-
-## 中文
-
-本目录用于存放阑山桌面的示例插件和参考实现。
-
-当前标准示例为 `LanMountainDesktop.SamplePlugin`。
-
-## English
-
-This directory stores sample plugins and reference implementations. The current standard sample is `LanMountainDesktop.SamplePlugin`.

LanAirApp/standards/README.md

@@ -1,9 +0,0 @@
-# 插件标准说明
-
-## 中文
-
-本目录存放插件开发需要遵循的基础约定，包括 `.laapp`、`plugin.json`、`Localization/` 以及仓库根目录 README 和安装包等要求。
-
-## English
-
-This directory stores the baseline conventions for plugin development, including `.laapp`, `plugin.json`, `Localization/`, and repository-root deliverables.

LanAirApp/standards/plugin.template.json

@@ -1,9 +0,0 @@
-{
-  "id": "LanMountainDesktop.YourPlugin",
-  "name": "Your Plugin",
-  "description": "Describe what your plugin adds to LanMountainDesktop.",
-  "author": "Your Name",
-  "version": "1.0.0",
-  "apiVersion": "1.0.0",
-  "entranceAssembly": "LanMountainDesktop.YourPlugin.dll"
-}

LanAirApp/tools/LanMountainDesktop.PluginPackager/Program.cs

@@ -1,136 +0,0 @@
-using System.IO.Compression;
-using LanMountainDesktop.PluginSdk;
-
-return await RunAsync(args);
-
-static async Task<int> RunAsync(string[] args)
-{
-    if (args.Length == 0 || args.Any(arg => string.Equals(arg, "--help", StringComparison.OrdinalIgnoreCase)))
-    {
-        PrintUsage();
-        return 0;
-    }
-
-    string? inputDirectory = null;
-    string? outputPath = null;
-    var overwrite = false;
-
-    for (var i = 0; i < args.Length; i++)
-    {
-        switch (args[i])
-        {
-            case "--input":
-                inputDirectory = ReadValue(args, ref i, "--input");
-                break;
-            case "--output":
-                outputPath = ReadValue(args, ref i, "--output");
-                break;
-            case "--overwrite":
-                overwrite = true;
-                break;
-            default:
-                throw new InvalidOperationException($"Unknown argument '{args[i]}'.");
-        }
-    }
-
-    if (string.IsNullOrWhiteSpace(inputDirectory))
-    {
-        throw new InvalidOperationException("Missing required argument '--input'.");
-    }
-
-    var fullInputDirectory = Path.GetFullPath(inputDirectory);
-    if (!Directory.Exists(fullInputDirectory))
-    {
-        throw new DirectoryNotFoundException($"Plugin build directory '{fullInputDirectory}' was not found.");
-    }
-
-    var manifestPath = Path.Combine(fullInputDirectory, PluginSdkInfo.ManifestFileName);
-    if (!File.Exists(manifestPath))
-    {
-        throw new FileNotFoundException(
-            $"Plugin build directory '{fullInputDirectory}' does not contain '{PluginSdkInfo.ManifestFileName}'.",
-            manifestPath);
-    }
-
-    var manifest = PluginManifest.Load(manifestPath);
-    var entranceAssemblyPath = manifest.ResolveEntranceAssemblyPath(manifestPath);
-    if (!File.Exists(entranceAssemblyPath))
-    {
-        throw new FileNotFoundException(
-            $"The entrance assembly declared by '{PluginSdkInfo.ManifestFileName}' was not found.",
-            entranceAssemblyPath);
-    }
-
-    outputPath ??= Path.Combine(
-        Path.GetDirectoryName(fullInputDirectory) ?? fullInputDirectory,
-        BuildPackageFileName(manifest.Id));
-
-    var fullOutputPath = Path.GetFullPath(outputPath);
-    var inputDirectoryWithSeparator = EnsureTrailingSeparator(fullInputDirectory);
-    if (fullOutputPath.StartsWith(inputDirectoryWithSeparator, StringComparison.OrdinalIgnoreCase))
-    {
-        throw new InvalidOperationException("The output .laapp path cannot be placed inside the source directory.");
-    }
-
-    var destinationDirectory = Path.GetDirectoryName(fullOutputPath);
-    if (string.IsNullOrWhiteSpace(destinationDirectory))
-    {
-        throw new InvalidOperationException("Failed to determine the output directory for the .laapp package.");
-    }
-
-    Directory.CreateDirectory(destinationDirectory);
-    if (File.Exists(fullOutputPath))
-    {
-        if (!overwrite)
-        {
-            throw new InvalidOperationException(
-                $"The output package '{fullOutputPath}' already exists. Pass '--overwrite' to replace it.");
-        }
-
-        File.Delete(fullOutputPath);
-    }
-
-    await Task.Run(() => ZipFile.CreateFromDirectory(
-        fullInputDirectory,
-        fullOutputPath,
-        CompressionLevel.Optimal,
-        includeBaseDirectory: false));
-
-    Console.WriteLine($"Packaged '{manifest.Name}' to '{fullOutputPath}'.");
-    return 0;
-}
-
-static string ReadValue(IReadOnlyList<string> args, ref int index, string optionName)
-{
-    var nextIndex = index + 1;
-    if (nextIndex >= args.Count)
-    {
-        throw new InvalidOperationException($"Missing value for '{optionName}'.");
-    }
-
-    index = nextIndex;
-    return args[nextIndex];
-}
-
-static string BuildPackageFileName(string pluginId)
-{
-    var invalidChars = Path.GetInvalidFileNameChars();
-    var safeName = new string(pluginId.Select(ch => invalidChars.Contains(ch) ? '_' : ch).ToArray());
-    return safeName + PluginSdkInfo.PackageFileExtension;
-}
-
-static string EnsureTrailingSeparator(string path)
-{
-    return path.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal)
-        ? path
-        : path + Path.DirectorySeparatorChar;
-}
-
-static void PrintUsage()
-{
-    Console.WriteLine("LanMountainDesktop.PluginPackager");
-    Console.WriteLine("Usage:");
-    Console.WriteLine("  --input <plugin build directory>   Required");
-    Console.WriteLine("  --output <path to .laapp>          Optional");
-    Console.WriteLine("  --overwrite                        Optional");
-}

LanMontainDesktop/.trae/specs/remove-video-wallpaper-feature/design.md

@@ -1,578 +0,0 @@
-# 移除视频壁纸功能 - 技术设计文档
-
-## 1. 概述
-
-### 1.1 设计目标
-
-本设计文档描述如何从 LanMountainDesktop 项目中完全移除视频壁纸功能，包括：
-- 移除 LibVLC 相关依赖
-- 清理主窗口中的视频壁纸代码
-- 简化壁纸设置页面
-- 清理本地化资源
-
-### 1.2 技术约束
-
-- 保持现有图片壁纸和纯色壁纸功能完整
-- 确保应用构建和运行正常
-- 不引入新的外部依赖
-
----
-
-## 2. 架构变更
-
-### 2.1 变更概览图
-
-```
-┌─────────────────────────────────────────────────────────────────┐
-│                        变更前架构                                │
-├─────────────────────────────────────────────────────────────────┤
-│  MainWindow                                                      │
-│  ├── DesktopWallpaperLayer (背景层)                              │
-│  │   ├── DesktopWallpaperImageLayer (图片层)                     │
-│  │   ├── DesktopVideoWallpaperImage (视频海报层)                  │
-│  │   └── DesktopVideoWallpaperView (VLC视频播放层)               │
-│  ├── _libVlc, _videoWallpaperPlayer, _videoWallpaperMedia        │
-│  └── StartVideoWallpaper(), StopVideoWallpaper()                 │
-│                                                                  │
-│  WallpaperSettingsPage                                           │
-│  ├── 类型选择: Image | Video | SolidColor                        │
-│  └── 视频预览区域                                                 │
-└─────────────────────────────────────────────────────────────────┘
-
-┌─────────────────────────────────────────────────────────────────┐
-│                        变更后架构                                │
-├─────────────────────────────────────────────────────────────────┤
-│  MainWindow                                                      │
-│  ├── DesktopWallpaperLayer (背景层)                              │
-│  │   └── DesktopWallpaperImageLayer (图片层)                     │
-│  └── (移除所有视频相关字段和方法)                                  │
-│                                                                  │
-│  WallpaperSettingsPage                                           │
-│  ├── 类型选择: Image | SolidColor                                │
-│  └── (移除视频预览区域)                                           │
-└─────────────────────────────────────────────────────────────────┘
-```
-
-### 2.2 组件变更清单
-
-| 组件 | 变更类型 | 说明 |
-|------|----------|------|
-| LanMountainDesktop.csproj | 修改 | 移除 LibVLC 包引用 |
-| MainWindow.axaml | 修改 | 移除视频控件和命名空间 |
-| MainWindow.axaml.cs | 修改 | 移除视频相关字段和清理代码 |
-| MainWindow.SettingsHardCut.Stubs.cs | 修改 | 移除视频壁纸方法 |
-| AppearanceThemeService.cs | 修改 | 移除视频种子提取器 |
-| WallpaperSettingsPage.axaml | 修改 | 移除视频类型UI |
-| WallpaperSettingsPageViewModel.cs | 修改 | 移除视频相关属性 |
-| SettingsContracts.cs | 修改 | 移除 Video 枚举值 |
-| SettingsDomainServices.cs | 修改 | 移除视频扩展名检测 |
-| zh-CN.json | 修改 | 移除视频相关本地化文本 |
-
----
-
-## 3. 详细设计
-
-### 3.1 项目依赖变更 (LanMountainDesktop.csproj)
-
-#### 3.1.1 移除的包引用
-
-```xml
-<!-- 移除以下包引用 -->
-<PackageReference Include="LibVLCSharp.Avalonia" Version="3.9.5" />
-<PackageReference Include="VideoLAN.LibVLC.Windows" Version="3.0.23" Condition="..." />
-<PackageReference Include="VideoLAN.LibVLC.Mac" Version="3.1.3.1" Condition="..." />
-```
-
-#### 3.1.2 变更影响
-
-- 减少约 100MB+ 的依赖包大小
-- 简化构建和发布流程
-- 移除平台特定的原生库依赖
-
----
-
-### 3.2 主窗口 XAML 变更 (MainWindow.axaml)
-
-#### 3.2.1 移除命名空间声明
-
-```xml
-<!-- 移除此行 -->
-xmlns:vlc="clr-namespace:LibVLCSharp.Avalonia;assembly=LibVLCSharp.Avalonia"
-```
-
-#### 3.2.2 移除视频壁纸控件
-
-移除以下控件（约第126-137行）：
-
-```xml
-<!-- 移除 DesktopVideoWallpaperImage -->
-<Image x:Name="DesktopVideoWallpaperImage"
-       IsVisible="False"
-       IsHitTestVisible="False"
-       Stretch="UniformToFill"
-       HorizontalAlignment="Stretch"
-       VerticalAlignment="Stretch" />
-
-<!-- 移除 DesktopVideoWallpaperView -->
-<vlc:VideoView x:Name="DesktopVideoWallpaperView"
-               IsVisible="False"
-               IsHitTestVisible="False"
-               HorizontalAlignment="Stretch"
-               VerticalAlignment="Stretch" />
-```
-
----
-
-### 3.3 主窗口代码变更 (MainWindow.axaml.cs)
-
-#### 3.3.1 移除 using 声明
-
-```csharp
-// 移除以下 using（如果存在）
-using LibVLCSharp.Shared;
-using LibVLCSharp.Avalonia;
-```
-
-#### 3.3.2 移除静态字段
-
-```csharp
-// 移除以下字段（约第68-71行）
-private static readonly HashSet<string> SupportedVideoExtensions = new(StringComparer.OrdinalIgnoreCase)
-{
-    ".mp4", ".mkv", ".webm", ".avi", ".mov", ".m4v"
-};
-```
-
-#### 3.3.3 移除实例字段
-
-```csharp
-// 移除以下字段（约第123-146行）
-private Bitmap? _videoWallpaperPosterBitmap;
-private string? _videoWallpaperPosterPath;
-private string? _wallpaperVideoPath;
-private LibVLC? _libVlc;
-private MediaPlayer? _videoWallpaperPlayer;
-private Media? _videoWallpaperMedia;
-private readonly object _desktopVideoFrameSync = new();
-private MediaPlayer.LibVLCVideoLockCb? _desktopVideoLockCallback;
-private MediaPlayer.LibVLCVideoUnlockCb? _desktopVideoUnlockCallback;
-private MediaPlayer.LibVLCVideoDisplayCb? _desktopVideoDisplayCallback;
-private DispatcherTimer? _desktopVideoFrameRefreshTimer;
-private IntPtr _desktopVideoFrameBufferPtr;
-private byte[]? _desktopVideoStagingBuffer;
-private WriteableBitmap? _desktopVideoBitmap;
-private int _desktopVideoFrameWidth;
-private int _desktopVideoFrameHeight;
-private int _desktopVideoFramePitch;
-private int _desktopVideoFrameBufferSize;
-private int _desktopVideoFrameDirtyFlag;
-```
-
-#### 3.3.4 修改 OnClosed 方法
-
-移除视频相关清理代码（约第336-350行）：
-
-```csharp
-// 移除以下代码行
-StopVideoWallpaper();
-_videoWallpaperMedia?.Dispose();
-_videoWallpaperMedia = null;
-_videoWallpaperPlayer?.Dispose();
-_videoWallpaperPlayer = null;
-_desktopVideoFrameRefreshTimer?.Stop();
-_desktopVideoFrameRefreshTimer = null;
-_videoWallpaperPosterBitmap?.Dispose();
-_videoWallpaperPosterBitmap = null;
-_videoWallpaperPosterPath = null;
-_libVlc?.Dispose();
-_libVlc = null;
-```
-
----
-
-### 3.4 主窗口 Stub 方法变更 (MainWindow.SettingsHardCut.Stubs.cs)
-
-#### 3.4.1 移除 using 声明
-
-```csharp
-// 移除以下 using（第19-20行）
-using LibVLCSharp.Shared;
-using LibVLCSharp.Avalonia;
-```
-
-#### 3.4.2 移除方法
-
-移除以下完整方法：
-
-| 方法名 | 行号范围 | 说明 |
-|--------|----------|------|
-| `StartVideoWallpaper` | 337-383 | 启动视频壁纸播放 |
-| `StopVideoWallpaper` | 385-395 | 停止视频壁纸播放 |
-| `TryCaptureVideoWallpaperPosterFrame` | 666-751 | 捕获视频海报帧 |
-| `ApplyVideoWallpaperPosterVisibility` | 647-664 | 控制视频海报可见性 |
-
-#### 3.4.3 修改 UpdateWallpaperDisplay 方法
-
-简化为仅处理图片壁纸：
-
-```csharp
-private void UpdateWallpaperDisplay()
-{
-    // 移除视频分支，仅保留图片处理
-    StopVideoWallpaper();  // 移除此调用
-    ApplyWallpaperBrush();
-}
-```
-
-修改后：
-
-```csharp
-private void UpdateWallpaperDisplay()
-{
-    ApplyWallpaperBrush();
-}
-```
-
-#### 3.4.4 修改 ApplyWallpaperBrush 方法
-
-移除所有 `ApplyVideoWallpaperPosterVisibility` 调用：
-
-```csharp
-// 移除以下调用
-ApplyVideoWallpaperPosterVisibility(showPoster: false);
-ApplyVideoWallpaperPosterVisibility(showPoster: _videoWallpaperPosterBitmap is not null);
-```
-
-#### 3.4.5 修改 SetWallpaperState 方法
-
-移除视频类型处理分支（约第238-247行）：
-
-```csharp
-// 移除以下代码块
-var requestedTypeIsVideo = string.Equals(_wallpaperType, "Video", StringComparison.OrdinalIgnoreCase);
-if (SupportedVideoExtensions.Contains(extension) || requestedTypeIsVideo)
-{
-    _wallpaperMediaType = WallpaperMediaType.Video;
-    _wallpaperVideoPath = _wallpaperPath;
-    _wallpaperDisplayState = File.Exists(_wallpaperPath)
-        ? WallpaperDisplayState.CurrentValidWallpaper
-        : WallpaperDisplayState.TemporarilyUnavailable;
-    return;
-}
-```
-
----
-
-### 3.5 外观主题服务变更 (AppearanceThemeService.cs)
-
-#### 3.5.1 移除接口和类
-
-移除以下代码（约第92-184行）：
-
-```csharp
-// 移除接口
-internal interface IVideoWallpaperSeedExtractor
-{
-    IReadOnlyList<Color> ExtractSeedCandidates(string videoPath, MonetColorService monetColorService);
-}
-
-// 移除实现类
-internal sealed class LibVlcVideoWallpaperSeedExtractor : IVideoWallpaperSeedExtractor
-{
-    // ... 整个类实现
-}
-```
-
----
-
-### 3.6 壁纸设置页面 XAML 变更 (WallpaperSettingsPage.axaml)
-
-#### 3.6.1 移除视频预览区域
-
-移除以下代码（约第29-44行）：
-
-```xml
-<Border Background="#FFF6F7F9"
-        IsVisible="{Binding IsVideo}">
-    <StackPanel HorizontalAlignment="Center"
-                VerticalAlignment="Center"
-                Spacing="12">
-        <fi:FluentIcon Icon="Video"
-                       Width="72"
-                       Height="72"
-                       Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
-        <TextBlock Text="{Binding VideoModeHintText}"
-                   Width="300"
-                   TextAlignment="Center"
-                   TextWrapping="Wrap"
-                   Foreground="{DynamicResource AdaptiveTextSecondaryBrush}" />
-    </StackPanel>
-</Border>
-```
-
-#### 3.6.2 移除视频模式提示文本
-
-移除以下代码（约第150-154行）：
-
-```xml
-<TextBlock Margin="0,8,0,0"
-           IsVisible="{Binding IsVideo}"
-           Foreground="{DynamicResource AdaptiveTextSecondaryBrush}"
-           Text="{Binding VideoModeHintText}"
-           TextWrapping="Wrap" />
-```
-
-#### 3.6.3 修改填充方式设置可见性绑定
-
-```xml
-<!-- 修改前 -->
-IsVisible="{Binding IsImageOrVideo}"
-
-<!-- 修改后 -->
-IsVisible="{Binding IsImage}"
-```
-
----
-
-### 3.7 壁纸设置 ViewModel 变更 (WallpaperSettingsPageViewModel.cs)
-
-#### 3.7.1 移除属性
-
-```csharp
-// 移除以下属性
-[ObservableProperty]
-private bool _isImageOrVideo;
-
-[ObservableProperty]
-private bool _isVideo;
-
-[ObservableProperty]
-private string _videoModeHintText = string.Empty;
-```
-
-#### 3.7.2 修改 CreateWallpaperTypes 方法
-
-```csharp
-// 修改前
-private IReadOnlyList<SelectionOption> CreateWallpaperTypes()
-{
-    return
-    [
-        new SelectionOption("Image", L("settings.wallpaper.type.image", "Image")),
-        new SelectionOption("Video", L("settings.wallpaper.type.video", "Video")),
-        new SelectionOption("SolidColor", L("settings.wallpaper.type.solid_color", "Solid Color"))
-    ];
-}
-
-// 修改后
-private IReadOnlyList<SelectionOption> CreateWallpaperTypes()
-{
-    return
-    [
-        new SelectionOption("Image", L("settings.wallpaper.type.image", "Image")),
-        new SelectionOption("SolidColor", L("settings.wallpaper.type.solid_color", "Solid Color"))
-    ];
-}
-```
-
-#### 3.7.3 修改 UpdateVisibility 方法
-
-移除 IsVideo 和 IsImageOrVideo 的赋值：
-
-```csharp
-// 移除以下行
-IsVideo = SelectedWallpaperType?.Value == "Video";
-IsImageOrVideo = SelectedWallpaperType?.Value is "Image" or "Video";
-```
-
-#### 3.7.4 修改 RefreshLocalizedText 方法
-
-```csharp
-// 移除以下行
-VideoModeHintText = L("settings.wallpaper.video_mode", "Video wallpaper uses automatic fill mode.");
-```
-
----
-
-### 3.8 设置契约变更 (SettingsContracts.cs)
-
-#### 3.8.1 修改 WallpaperMediaType 枚举
-
-```csharp
-// 修改前
-public enum WallpaperMediaType
-{
-    None,
-    Image,
-    Video
-}
-
-// 修改后
-public enum WallpaperMediaType
-{
-    None,
-    Image
-}
-```
-
----
-
-### 3.9 设置域服务变更 (SettingsDomainServices.cs)
-
-#### 3.9.1 移除视频扩展名集合
-
-```csharp
-// 移除以下字段（约第150-153行）
-private static readonly HashSet<string> VideoExtensions = new(StringComparer.OrdinalIgnoreCase)
-{
-    ".mp4", ".mkv", ".webm", ".avi", ".mov", ".m4v"
-};
-```
-
-#### 3.9.2 修改 DetectMediaType 方法
-
-```csharp
-// 修改前
-public WallpaperMediaType DetectMediaType(string? path)
-{
-    if (string.IsNullOrWhiteSpace(path))
-    {
-        return WallpaperMediaType.None;
-    }
-
-    var extension = Path.GetExtension(path.Trim());
-    if (string.IsNullOrWhiteSpace(extension))
-    {
-        return WallpaperMediaType.None;
-    }
-
-    if (ImageExtensions.Contains(extension))
-    {
-        return WallpaperMediaType.Image;
-    }
-
-    if (VideoExtensions.Contains(extension))
-    {
-        return WallpaperMediaType.Video;
-    }
-
-    return WallpaperMediaType.None;
-}
-
-// 修改后
-public WallpaperMediaType DetectMediaType(string? path)
-{
-    if (string.IsNullOrWhiteSpace(path))
-    {
-        return WallpaperMediaType.None;
-    }
-
-    var extension = Path.GetExtension(path.Trim());
-    if (string.IsNullOrWhiteSpace(extension))
-    {
-        return WallpaperMediaType.None;
-    }
-
-    if (ImageExtensions.Contains(extension))
-    {
-        return WallpaperMediaType.Image;
-    }
-
-    return WallpaperMediaType.None;
-}
-```
-
----
-
-### 3.10 本地化文件变更 (zh-CN.json)
-
-#### 3.10.1 移除的本地化键
-
-```json
-// 移除以下键值对
-"settings.wallpaper.type.video": "视频",
-"settings.wallpaper.video_applied": "视频壁纸已应用。",
-"settings.wallpaper.video_mode": "视频壁纸使用自动填充模式。",
-"settings.wallpaper.video_restored": "已恢复保存的视频壁纸。",
-"settings.wallpaper.video_not_found": "未找到视频壁纸文件。",
-"settings.wallpaper.video_player_unavailable": "视频播放器不可用。",
-"settings.wallpaper.video_play_failed_format": "播放视频壁纸失败：{0}"
-```
-
-#### 3.10.2 修改描述文本
-
-```json
-// 修改前
-"settings.wallpaper.description": "选择图片或视频后可立即设为应用窗口壁纸。",
-
-// 修改后
-"settings.wallpaper.description": "选择图片后可立即设为应用窗口壁纸。",
-```
-
----
-
-## 4. 数据模型变更
-
-### 4.1 WallpaperMediaType 枚举简化
-
-```
-变更前: None | Image | Video
-变更后: None | Image
-```
-
-### 4.2 设置存储兼容性
-
-现有用户设置中如果包含 `Type: "Video"` 的壁纸配置：
-- 应用将无法识别该类型
-- 将回退到纯色背景
-- 用户需要重新选择图片壁纸
-
----
-
-## 5. 风险评估
-
-### 5.1 潜在风险
-
-| 风险 | 影响 | 缓解措施 |
-|------|------|----------|
-| 现有视频壁纸用户设置失效 | 中 | 应用会自动回退到纯色背景 |
-| 遗漏的视频相关代码引用 | 低 | 编译器会报告未定义类型错误 |
-| 本地化键遗漏 | 低 | 运行时会显示键名而非翻译文本 |
-
-### 5.2 回滚策略
-
-如需回滚，可通过 Git 恢复以下文件：
-- LanMountainDesktop.csproj
-- MainWindow.axaml / .axaml.cs
-- MainWindow.SettingsHardCut.Stubs.cs
-- AppearanceThemeService.cs
-- WallpaperSettingsPage.axaml
-- WallpaperSettingsPageViewModel.cs
-- SettingsContracts.cs
-- SettingsDomainServices.cs
-- zh-CN.json
-
----
-
-## 6. 验证清单
-
-### 6.1 编译验证
-
-- [ ] 项目编译无错误
-- [ ] 无 LibVLC 相关类型引用警告
-- [ ] 无未使用变量警告
-
-### 6.2 功能验证
-
-- [ ] 应用正常启动
-- [ ] 图片壁纸正常显示
-- [ ] 纯色壁纸正常显示
-- [ ] 壁纸设置页面正常打开
-- [ ] 类型选择器仅显示"图片"和"纯色"
-- [ ] 壁纸导入功能正常工作
-
-### 6.3 清理验证
-
-- [ ] 无 LibVLC 相关 DLL 在输出目录
-- [ ] 无视频相关本地化文本残留
-- [ ] 无视频相关 UI 控件残留

LanMontainDesktop/.trae/specs/remove-video-wallpaper-feature/spec.md

@@ -1,206 +0,0 @@
-# 移除视频壁纸功能规格说明书
-
-## Why
-
-当前 LanMountainDesktop 项目包含视频壁纸功能，该功能引入了以下复杂性和依赖：
-1. 引入了 LibVLCSharp.Avalonia、VideoLAN.LibVLC.Windows、VideoLAN.LibVLC.Mac 等重型依赖
-2. 在主窗口中残留大量视频壁纸相关代码和字段
-3. 在设置页面中保留了视频类型选择器和相关 UI 元素
-4. 在本地化文件中保留了视频壁纸相关文本
-5. 增加了应用复杂度和维护成本
-
-用户决定移除该功能以简化代码库。
-
-## What Changes
-
-- 移除 LibVLCSharp.Avalonia 及 VideoLAN.LibVLC.* NuGet 依赖
-- 移除 AppearanceThemeService.cs 中的 LibVlcVideoWallpaperSeedExtractor 类和 IVideoWallpaperSeedExtractor 接口
-- 移除 MainWindow.axaml.cs 中的视频壁纸相关字段和清理代码
-- 移除 MainWindow.SettingsHardCut.Stubs.cs 中的视频壁纸相关方法
-- 移除 MainWindow.axaml 中的 DesktopVideoWallpaperImage 和 DesktopVideoWallpaperView 控件
-- 移除 WallpaperSettingsPage.axaml 中的视频类型选择器和视频模式提示
-- 移除 WallpaperSettingsPageViewModel.cs 中的 IsVideo、VideoModeHintText 等属性
-- 移除 SettingsContracts.cs 中 WallpaperMediaType 枚举的 Video 值
-- 移除 SettingsDomainServices.cs 中 WallpaperMediaService 类的视频扩展名检测逻辑
-- 移除本地化文件中的视频壁纸相关文本
-
-## Impact
-
-### Affected specs
-- 壁纸设置功能规格
-- 主窗口桌面层规格
-
-### Affected code
-- `LanMountainDesktop.csproj` - NuGet 依赖配置
-- `Services/AppearanceThemeService.cs` - 视频壁纸种子提取器
-- `Views/MainWindow.axaml.cs` - 主窗口字段和清理逻辑
-- `Views/MainWindow.SettingsHardCut.Stubs.cs` - 视频壁纸控制方法
-- `Views/MainWindow.axaml` - 视频壁纸 UI 控件
-- `Views/SettingsPages/WallpaperSettingsPage.axaml` - 壁纸设置页面 UI
-- `ViewModels/WallpaperSettingsPageViewModel.cs` - 壁纸设置 ViewModel
-- `Services/Settings/SettingsContracts.cs` - 壁纸媒体类型枚举
-- `Services/Settings/SettingsDomainServices.cs` - 壁纸媒体服务
-- `Localization/zh-CN.json` - 本地化文本
-
----
-
-## REMOVED Requirements
-
-### Requirement: 视频壁纸播放功能
-
-**Reason**: 用户决定移除视频壁纸功能以简化代码库，减少重型依赖
-
-**Migration**: 
-- 用户如需动态壁纸，可使用静态图片壁纸替代
-- 现有视频壁纸设置将被重置为纯色背景
-
-#### Scenario: 视频壁纸播放
-- **GIVEN** 用户选择了视频文件作为壁纸
-- **WHEN** 系统检测到视频格式
-- **THEN** 系统不再支持视频壁纸播放
-- **AND THEN** 系统提示用户该文件类型不受支持
-
-### Requirement: LibVLC 依赖
-
-**Reason**: 移除视频壁纸功能后不再需要 LibVLC 库
-
-**Migration**: 从项目依赖中移除以下包：
-- LibVLCSharp.Avalonia
-- VideoLAN.LibVLC.Windows
-- VideoLAN.LibVLC.Mac
-
-### Requirement: 视频壁纸种子提取
-
-**Reason**: 移除视频壁纸功能后不再需要从视频中提取颜色种子
-
-**Migration**: 移除 `LibVlcVideoWallpaperSeedExtractor` 类和 `IVideoWallpaperSeedExtractor` 接口
-
-### Requirement: 视频壁纸 UI 控件
-
-**Reason**: 移除视频壁纸功能后不再需要视频显示控件
-
-**Migration**: 移除 `DesktopVideoWallpaperImage` 和 `DesktopVideoWallpaperView` 控件
-
-### Requirement: 视频类型选择器
-
-**Reason**: 移除视频壁纸功能后不再需要视频类型选项
-
-**Migration**: 从壁纸类型选择器中移除"视频"选项
-
----
-
-## MODIFIED Requirements
-
-### Requirement: 壁纸媒体类型检测
-
-**当前**: 支持检测 None、Image、Video 三种类型
-
-**修改后**: 仅支持检测 None、Image 两种类型
-
-#### Scenario: 检测媒体类型
-- **WHEN** 用户选择壁纸文件
-- **THEN** 系统仅检测图片格式（.png, .jpg, .jpeg, .bmp, .gif, .webp）
-- **AND THEN** 视频格式文件将被识别为不受支持的类型
-
-### Requirement: 壁纸类型选项
-
-**当前**: 提供图片、视频、纯色三种类型选项
-
-**修改后**: 仅提供图片、纯色两种类型选项
-
-#### Scenario: 壁纸类型选择
-- **WHEN** 用户打开壁纸设置页面
-- **THEN** 类型选择器仅显示"图片"和"纯色"选项
-- **AND THEN** "视频"选项不再显示
-
-### Requirement: 壁纸设置页面预览
-
-**当前**: 根据类型显示图片预览、视频预览或纯色预览
-
-**修改后**: 根据类型显示图片预览或纯色预览
-
-#### Scenario: 预览显示
-- **WHEN** 用户选择壁纸类型
-- **THEN** 系统仅显示图片预览或纯色预览
-- **AND THEN** 视频预览区域不再显示
-
-### Requirement: 主窗口壁纸显示
-
-**当前**: 支持显示静态图片壁纸和视频壁纸
-
-**修改后**: 仅支持显示静态图片壁纸
-
-#### Scenario: 壁纸显示更新
-- **WHEN** 用户应用新壁纸
-- **THEN** 系统仅处理静态图片壁纸显示
-- **AND THEN** 视频壁纸播放逻辑不再执行
-
----
-
-## ADDED Requirements
-
-### Requirement: 清理残留代码
-
-系统 SHALL 完全移除视频壁纸功能相关的所有代码和资源。
-
-#### Scenario: 主窗口字段清理
-- **WHEN** 执行代码清理
-- **THEN** 移除以下字段：
-  - `_videoWallpaperPosterBitmap`
-  - `_videoWallpaperPosterPath`
-  - `_libVlc`
-  - `_videoWallpaperPlayer`
-  - `_videoWallpaperMedia`
-  - `_wallpaperVideoPath`
-
-#### Scenario: 主窗口方法清理
-- **WHEN** 执行代码清理
-- **THEN** 移除以下方法：
-  - `StartVideoWallpaper`
-  - `StopVideoWallpaper`
-  - `TryCaptureVideoWallpaperPosterFrame`
-  - `ApplyVideoWallpaperPosterVisibility`
-  - `UpdateWallpaperDisplay` 中的视频处理分支
-
-#### Scenario: ViewModel 属性清理
-- **WHEN** 执行代码清理
-- **THEN** 移除以下属性：
-  - `IsVideo`
-  - `VideoModeHintText`
-  - `IsImageOrVideo`（改为 `IsImage`）
-
-#### Scenario: 本地化文本清理
-- **WHEN** 执行代码清理
-- **THEN** 移除以下本地化键：
-  - `settings.wallpaper.type.video`
-  - `settings.wallpaper.video_applied`
-  - `settings.wallpaper.video_mode`
-  - `settings.wallpaper.video_restored`
-  - `settings.wallpaper.video_not_found`
-  - `settings.wallpaper.video_player_unavailable`
-  - `settings.wallpaper.video_play_failed_format`
-
-### Requirement: 依赖项清理
-
-系统 SHALL 从项目文件中移除 LibVLC 相关 NuGet 包引用。
-
-#### Scenario: NuGet 包移除
-- **WHEN** 执行依赖清理
-- **THEN** 移除以下包引用：
-  - `LibVLCSharp.Avalonia`
-  - `VideoLAN.LibVLC.Windows`
-  - `VideoLAN.LibVLC.Mac`
-
-### Requirement: 构建验证
-
-系统 SHALL 在移除视频壁纸功能后保持正常构建和运行。
-
-#### Scenario: 构建成功
-- **WHEN** 执行项目构建
-- **THEN** 构建成功无错误
-- **AND THEN** 所有现有测试通过
-
-#### Scenario: 应用启动
-- **WHEN** 启动应用程序
-- **THEN** 应用正常启动
-- **AND THEN** 壁纸设置功能正常工作（仅支持图片和纯色）

LanMontainDesktop/.trae/specs/remove-video-wallpaper-feature/tasks.md

@@ -1,600 +0,0 @@
-# 移除视频壁纸功能 - 编码任务清单
-
-## 任务概览
-
-本文档将技术设计分解为可执行的编码任务，按依赖关系排序执行。
-
----
-
-## 任务 1: 移除项目依赖
-
-**优先级**: P0 (最高)  
-**依赖**: 无  
-**预估工作量**: 5 分钟
-
-### 描述
-
-从项目文件中移除 LibVLC 相关的 NuGet 包引用。
-
-### 输入
-
-- `LanMountainDesktop/LanMountainDesktop.csproj`
-
-### 输出
-
-- 修改后的 `LanMountainDesktop.csproj`，移除以下包引用：
-  - `LibVLCSharp.Avalonia`
-  - `VideoLAN.LibVLC.Windows`
-  - `VideoLAN.LibVLC.Mac`
-
-### 验收标准
-
-- [ ] 项目文件中不再包含 LibVLC 相关包引用
-- [ ] 执行 `dotnet restore` 成功
-
-### 执行提示
-
-```
-编辑 LanMountainDesktop.csproj，移除以下 PackageReference 节点：
-1. <PackageReference Include="LibVLCSharp.Avalonia" Version="3.9.5" />
-2. <PackageReference Include="VideoLAN.LibVLC.Windows" ... />
-3. <PackageReference Include="VideoLAN.LibVLC.Mac" ... />
-```
-
----
-
-## 任务 2: 移除主窗口 XAML 视频控件
-
-**优先级**: P0  
-**依赖**: 任务 1  
-**预估工作量**: 10 分钟
-
-### 描述
-
-从 MainWindow.axaml 中移除视频壁纸相关的 XAML 控件和命名空间声明。
-
-### 输入
-
-- `LanMountainDesktop/Views/MainWindow.axaml`
-
-### 输出
-
-- 移除 LibVLC 命名空间声明
-- 移除 `DesktopVideoWallpaperImage` 控件
-- 移除 `DesktopVideoWallpaperView` 控件
-
-### 验收标准
-
-- [ ] XAML 中无 `xmlns:vlc` 命名空间
-- [ ] XAML 中无 `DesktopVideoWallpaperImage` 元素
-- [ ] XAML 中无 `DesktopVideoWallpaperView` 元素
-
-### 执行提示
-
-```
-编辑 MainWindow.axaml：
-1. 移除第 9 行: xmlns:vlc="clr-namespace:LibVLCSharp.Avalonia;assembly=LibVLCSharp.Avalonia"
-2. 移除第 126-131 行: <Image x:Name="DesktopVideoWallpaperImage" ... />
-3. 移除第 133-137 行: <vlc:VideoView x:Name="DesktopVideoWallpaperView" ... />
-```
-
----
-
-## 任务 3: 移除主窗口代码视频字段
-
-**优先级**: P0  
-**依赖**: 任务 1  
-**预估工作量**: 15 分钟
-
-### 描述
-
-从 MainWindow.axaml.cs 中移除视频壁纸相关的字段声明。
-
-### 输入
-
-- `LanMountainDesktop/Views/MainWindow.axaml.cs`
-
-### 输出
-
-- 移除 `SupportedVideoExtensions` 静态字段
-- 移除所有视频相关实例字段
-
-### 验收标准
-
-- [ ] 无 `SupportedVideoExtensions` 字段
-- [ ] 无 `_videoWallpaperPosterBitmap` 字段
-- [ ] 无 `_videoWallpaperPosterPath` 字段
-- [ ] 无 `_wallpaperVideoPath` 字段
-- [ ] 无 `_libVlc` 字段
-- [ ] 无 `_videoWallpaperPlayer` 字段
-- [ ] 无 `_videoWallpaperMedia` 字段
-- [ ] 无 `_desktopVideoFrameSync` 及相关视频帧处理字段
-
-### 执行提示
-
-```
-编辑 MainWindow.axaml.cs：
-1. 移除第 68-71 行的 SupportedVideoExtensions 定义
-2. 移除第 123-146 行的所有视频相关字段
-```
-
----
-
-## 任务 4: 移除主窗口 OnClosed 清理代码
-
-**优先级**: P0  
-**依赖**: 任务 3  
-**预估工作量**: 5 分钟
-
-### 描述
-
-从 MainWindow.axaml.cs 的 OnClosed 方法中移除视频相关清理代码。
-
-### 输入
-
-- `LanMountainDesktop/Views/MainWindow.axaml.cs` (OnClosed 方法)
-
-### 输出
-
-- 简化的 OnClosed 方法，无视频清理逻辑
-
-### 验收标准
-
-- [ ] OnClosed 方法中无 `StopVideoWallpaper()` 调用
-- [ ] OnClosed 方法中无 `_videoWallpaperMedia` 相关清理
-- [ ] OnClosed 方法中无 `_videoWallpaperPlayer` 相关清理
-- [ ] OnClosed 方法中无 `_libVlc` 相关清理
-
-### 执行提示
-
-```
-编辑 MainWindow.axaml.cs 的 OnClosed 方法，移除以下代码行：
-- StopVideoWallpaper();
-- _videoWallpaperMedia?.Dispose(); _videoWallpaperMedia = null;
-- _videoWallpaperPlayer?.Dispose(); _videoWallpaperPlayer = null;
-- _desktopVideoFrameRefreshTimer?.Stop(); _desktopVideoFrameRefreshTimer = null;
-- _videoWallpaperPosterBitmap?.Dispose(); _videoWallpaperPosterBitmap = null;
-- _videoWallpaperPosterPath = null;
-- _libVlc?.Dispose(); _libVlc = null;
-```
-
----
-
-## 任务 5: 移除主窗口 Stub 方法
-
-**优先级**: P0  
-**依赖**: 任务 1  
-**预估工作量**: 20 分钟
-
-### 描述
-
-从 MainWindow.SettingsHardCut.Stubs.cs 中移除视频壁纸相关方法和 using 声明。
-
-### 输入
-
-- `LanMountainDesktop/Views/MainWindow.SettingsHardCut.Stubs.cs`
-
-### 输出
-
-- 移除 LibVLC using 声明
-- 移除 `StartVideoWallpaper` 方法
-- 移除 `StopVideoWallpaper` 方法
-- 移除 `TryCaptureVideoWallpaperPosterFrame` 方法
-- 移除 `ApplyVideoWallpaperPosterVisibility` 方法
-
-### 验收标准
-
-- [ ] 无 `using LibVLCSharp.Shared;`
-- [ ] 无 `using LibVLCSharp.Avalonia;`
-- [ ] 无 `StartVideoWallpaper` 方法定义
-- [ ] 无 `StopVideoWallpaper` 方法定义
-- [ ] 无 `TryCaptureVideoWallpaperPosterFrame` 方法定义
-- [ ] 无 `ApplyVideoWallpaperPosterVisibility` 方法定义
-
-### 执行提示
-
-```
-编辑 MainWindow.SettingsHardCut.Stubs.cs：
-1. 移除第 19-20 行的 using 声明
-2. 移除 StartVideoWallpaper 方法（第 337-383 行）
-3. 移除 StopVideoWallpaper 方法（第 385-395 行）
-4. 移除 ApplyVideoWallpaperPosterVisibility 方法（第 647-664 行）
-5. 移除 TryCaptureVideoWallpaperPosterFrame 方法（第 666-751 行）
-```
-
----
-
-## 任务 6: 简化壁纸状态处理逻辑
-
-**优先级**: P0  
-**依赖**: 任务 5  
-**预估工作量**: 15 分钟
-
-### 描述
-
-修改 MainWindow.SettingsHardCut.Stubs.cs 中的壁纸状态处理方法，移除视频类型分支。
-
-### 输入
-
-- `LanMountainDesktop/Views/MainWindow.SettingsHardCut.Stubs.cs`
-
-### 输出
-
-- 简化的 `SetWallpaperState` 方法
-- 简化的 `UpdateWallpaperDisplay` 方法
-- 简化的 `ApplyWallpaperBrush` 方法
-
-### 验收标准
-
-- [ ] `SetWallpaperState` 中无视频类型检测分支
-- [ ] `SetWallpaperState` 中无 `_wallpaperVideoPath` 赋值
-- [ ] `UpdateWallpaperDisplay` 中无 `StopVideoWallpaper()` 调用
-- [ ] `ApplyWallpaperBrush` 中无 `ApplyVideoWallpaperPosterVisibility` 调用
-
-### 执行提示
-
-```
-编辑 MainWindow.SettingsHardCut.Stubs.cs：
-
-1. SetWallpaperState 方法：
-   - 移除 requestedTypeIsVideo 变量定义
-   - 移除视频类型检测 if 块（SupportedVideoExtensions.Contains 检查）
-
-2. UpdateWallpaperDisplay 方法：
-   - 移除视频类型分支，仅保留 ApplyWallpaperBrush() 调用
-
-3. ApplyWallpaperBrush 方法：
-   - 移除所有 ApplyVideoWallpaperPosterVisibility 调用
-```
-
----
-
-## 任务 7: 移除外观主题服务视频提取器
-
-**优先级**: P1  
-**依赖**: 任务 1  
-**预估工作量**: 10 分钟
-
-### 描述
-
-从 AppearanceThemeService.cs 中移除视频壁纸种子提取器接口和实现类。
-
-### 输入
-
-- `LanMountainDesktop/Services/AppearanceThemeService.cs`
-
-### 输出
-
-- 移除 `IVideoWallpaperSeedExtractor` 接口
-- 移除 `LibVlcVideoWallpaperSeedExtractor` 类
-
-### 验收标准
-
-- [ ] 无 `IVideoWallpaperSeedExtractor` 接口定义
-- [ ] 无 `LibVlcVideoWallpaperSeedExtractor` 类定义
-
-### 执行提示
-
-```
-编辑 AppearanceThemeService.cs：
-移除第 92-184 行的接口和类定义：
-- IVideoWallpaperSeedExtractor 接口
-- LibVlcVideoWallpaperSeedExtractor 类
-```
-
----
-
-## 任务 8: 简化壁纸设置页面 XAML
-
-**优先级**: P1  
-**依赖**: 无  
-**预估工作量**: 10 分钟
-
-### 描述
-
-从 WallpaperSettingsPage.axaml 中移除视频预览区域和相关 UI 元素。
-
-### 输入
-
-- `LanMountainDesktop/Views/SettingsPages/WallpaperSettingsPage.axaml`
-
-### 输出
-
-- 移除视频预览 Border 区域
-- 移除视频模式提示 TextBlock
-- 修改填充方式可见性绑定
-
-### 验收标准
-
-- [ ] 无视频预览 Border（IsVisible="{Binding IsVideo}"）
-- [ ] 无 VideoModeHintText 绑定的 TextBlock
-- [ ] 填充方式设置绑定改为 `IsVisible="{Binding IsImage}"`
-
-### 执行提示
-
-```
-编辑 WallpaperSettingsPage.axaml：
-1. 移除第 29-44 行的视频预览 Border
-2. 移除第 150-154 行的视频模式提示 TextBlock
-3. 修改第 132 行: IsVisible="{Binding IsImageOrVideo}" 改为 IsVisible="{Binding IsImage}"
-```
-
----
-
-## 任务 9: 简化壁纸设置 ViewModel
-
-**优先级**: P1  
-**依赖**: 任务 8  
-**预估工作量**: 15 分钟
-
-### 描述
-
-从 WallpaperSettingsPageViewModel.cs 中移除视频相关属性和方法逻辑。
-
-### 输入
-
-- `LanMountainDesktop/ViewModels/WallpaperSettingsPageViewModel.cs`
-
-### 输出
-
-- 移除 `_isImageOrVideo`、`_isVideo`、`_videoModeHintText` 属性
-- 修改 `CreateWallpaperTypes` 方法
-- 修改 `UpdateVisibility` 方法
-- 修改 `RefreshLocalizedText` 方法
-
-### 验收标准
-
-- [ ] 无 `IsImageOrVideo` 属性
-- [ ] 无 `IsVideo` 属性
-- [ ] 无 `VideoModeHintText` 属性
-- [ ] `CreateWallpaperTypes` 仅返回 Image 和 SolidColor 选项
-- [ ] `UpdateVisibility` 中无 IsVideo、IsImageOrVideo 赋值
-- [ ] `RefreshLocalizedText` 中无 VideoModeHintText 赋值
-
-### 执行提示
-
-```
-编辑 WallpaperSettingsPageViewModel.cs：
-1. 移除第 76-77 行的 _isImageOrVideo 字段和属性
-2. 移除第 85-86 行的 _isVideo 字段和属性
-3. 移除第 94-95 行的 _videoModeHintText 字段和属性
-4. 修改 CreateWallpaperTypes 方法，移除 Video 选项
-5. 修改 UpdateVisibility 方法，移除 IsVideo 和 IsImageOrVideo 赋值
-6. 修改 RefreshLocalizedText 方法，移除 VideoModeHintText 赋值
-```
-
----
-
-## 任务 10: 简化壁纸媒体类型枚举
-
-**优先级**: P1  
-**依赖**: 无  
-**预估工作量**: 5 分钟
-
-### 描述
-
-从 SettingsContracts.cs 中移除 WallpaperMediaType 枚举的 Video 值。
-
-### 输入
-
-- `LanMountainDesktop/Services/Settings/SettingsContracts.cs`
-
-### 输出
-
-- 简化的 `WallpaperMediaType` 枚举
-
-### 验收标准
-
-- [ ] `WallpaperMediaType` 枚举仅包含 `None` 和 `Image`
-
-### 执行提示
-
-```
-编辑 SettingsContracts.cs：
-修改第 11-16 行的枚举定义：
-public enum WallpaperMediaType
-{
-    None,
-    Image
-}
-```
-
----
-
-## 任务 11: 简化壁纸媒体服务
-
-**优先级**: P1  
-**依赖**: 任务 10  
-**预估工作量**: 10 分钟
-
-### 描述
-
-从 SettingsDomainServices.cs 中移除视频扩展名检测逻辑。
-
-### 输入
-
-- `LanMountainDesktop/Services/Settings/SettingsDomainServices.cs`
-
-### 输出
-
-- 移除 `VideoExtensions` 字段
-- 简化 `DetectMediaType` 方法
-
-### 验收标准
-
-- [ ] 无 `VideoExtensions` 字段定义
-- [ ] `DetectMediaType` 方法中无视频扩展名检测逻辑
-
-### 执行提示
-
-```
-编辑 SettingsDomainServices.cs：
-1. 移除第 150-153 行的 VideoExtensions 字段定义
-2. 修改 DetectMediaType 方法，移除视频检测分支
-```
-
----
-
-## 任务 12: 清理本地化文件
-
-**优先级**: P2  
-**依赖**: 无  
-**预估工作量**: 5 分钟
-
-### 描述
-
-从 zh-CN.json 中移除视频壁纸相关的本地化文本。
-
-### 输入
-
-- `LanMountainDesktop/Localization/zh-CN.json`
-
-### 输出
-
-- 移除视频相关本地化键
-- 修改壁纸描述文本
-
-### 验收标准
-
-- [ ] 无 `settings.wallpaper.type.video` 键
-- [ ] 无 `settings.wallpaper.video_applied` 键
-- [ ] 无 `settings.wallpaper.video_mode` 键
-- [ ] 无 `settings.wallpaper.video_restored` 键
-- [ ] 无 `settings.wallpaper.video_not_found` 键
-- [ ] 无 `settings.wallpaper.video_player_unavailable` 键
-- [ ] 无 `settings.wallpaper.video_play_failed_format` 键
-- [ ] `settings.wallpaper.description` 文本已更新
-
-### 执行提示
-
-```
-编辑 zh-CN.json：
-1. 移除以下键值对：
-   - "settings.wallpaper.type.video"
-   - "settings.wallpaper.video_applied"
-   - "settings.wallpaper.video_mode"
-   - "settings.wallpaper.video_restored"
-   - "settings.wallpaper.video_not_found"
-   - "settings.wallpaper.video_player_unavailable"
-   - "settings.wallpaper.video_play_failed_format"
-
-2. 修改描述文本：
-   "settings.wallpaper.description": "选择图片后可立即设为应用窗口壁纸。"
-```
-
----
-
-## 任务 13: 构建验证
-
-**优先级**: P0  
-**依赖**: 任务 1-12 全部完成  
-**预估工作量**: 10 分钟
-
-### 描述
-
-验证项目在移除视频壁纸功能后能够正常构建。
-
-### 输入
-
-- 整个项目
-
-### 输出
-
-- 构建成功确认
-
-### 验收标准
-
-- [ ] `dotnet build` 执行成功，无编译错误
-- [ ] 无 LibVLC 相关类型未定义错误
-- [ ] 无未使用变量警告（或已处理）
-
-### 执行提示
-
-```
-在项目根目录执行：
-dotnet build LanMountainDesktop/LanMountainDesktop.csproj
-
-检查输出：
-- 确认无编译错误
-- 确认无 LibVLC 相关类型引用错误
-```
-
----
-
-## 任务 14: 功能验证
-
-**优先级**: P0  
-**依赖**: 任务 13  
-**预估工作量**: 15 分钟
-
-### 描述
-
-验证应用在移除视频壁纸功能后核心功能正常工作。
-
-### 输入
-
-- 构建后的应用
-
-### 输出
-
-- 功能验证报告
-
-### 验收标准
-
-- [ ] 应用正常启动
-- [ ] 图片壁纸正常显示
-- [ ] 纯色壁纸正常显示
-- [ ] 壁纸设置页面正常打开
-- [ ] 类型选择器仅显示"图片"和"纯色"选项
-- [ ] 壁纸导入功能正常工作
-
-### 执行提示
-
-```
-运行应用：
-dotnet run --project LanMountainDesktop/LanMountainDesktop.csproj
-
-手动验证：
-1. 应用启动无崩溃
-2. 打开设置 -> 壁纸页面
-3. 确认类型选择器仅有"图片"和"纯色"
-4. 测试选择图片壁纸
-5. 测试选择纯色壁纸
-```
-
----
-
-## 任务依赖关系图
-
-```
-任务 1 (移除依赖)
-  ├── 任务 2 (XAML控件)
-  ├── 任务 3 (代码字段)
-  │     └── 任务 4 (OnClosed清理)
-  ├── 任务 5 (Stub方法)
-  │     └── 任务 6 (状态处理逻辑)
-  └── 任务 7 (主题服务)
-
-任务 8 (设置页面XAML)
-  └── 任务 9 (设置ViewModel)
-
-任务 10 (枚举简化)
-  └── 任务 11 (媒体服务)
-
-任务 12 (本地化) - 独立
-
-任务 13 (构建验证) - 依赖所有任务
-  └── 任务 14 (功能验证)
-```
-
----
-
-## 执行顺序建议
-
-按以下顺序执行可确保依赖关系正确：
-
-1. **第一批** (可并行): 任务 1, 任务 8, 任务 10, 任务 12
-2. **第二批** (可并行): 任务 2, 任务 3, 任务 5, 任务 7, 任务 9, 任务 11
-3. **第三批** (可并行): 任务 4, 任务 6
-4. **第四批**: 任务 13
-5. **第五批**: 任务 14

LanMountainDesktop.Appearance/AppearanceCornerRadiusTokenFactory.cs

@@ -0,0 +1,27 @@
+using Avalonia;
+using LanMountainDesktop.Settings.Core;
+using LanMountainDesktop.Shared.Contracts;
+
+namespace LanMountainDesktop.Appearance;
+
+public static class AppearanceCornerRadiusTokenFactory
+{
+    public static AppearanceCornerRadiusTokens Create(double scale)
+    {
+        var normalizedScale = GlobalAppearanceSettings.NormalizeCornerRadiusScale(scale);
+        return new AppearanceCornerRadiusTokens(
+            Radius(6, normalizedScale),
+            Radius(10, normalizedScale),
+            Radius(14, normalizedScale),
+            Radius(18, normalizedScale),
+            Radius(24, normalizedScale),
+            Radius(30, normalizedScale),
+            Radius(36, normalizedScale));
+    }
+
+    private static CornerRadius Radius(double value, double scale)
+    {
+        var scaled = Math.Round(value * scale * 2, MidpointRounding.AwayFromZero) / 2d;
+        return new CornerRadius(scaled);
+    }
+}

LanMountainDesktop.Appearance/LanMountainDesktop.Appearance.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\LanMountainDesktop.PluginSdk\LanMountainDesktop.PluginSdk.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Shared.Contracts\LanMountainDesktop.Shared.Contracts.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Settings.Core\LanMountainDesktop.Settings.Core.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Host.Abstractions\LanMountainDesktop.Host.Abstractions.csproj" />
+  </ItemGroup>
+</Project>

LanMountainDesktop.DesktopComponents.Runtime/LanMountainDesktop.DesktopComponents.Runtime.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\LanMountainDesktop.PluginSdk\LanMountainDesktop.PluginSdk.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Shared.Contracts\LanMountainDesktop.Shared.Contracts.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Settings.Core\LanMountainDesktop.Settings.Core.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Appearance\LanMountainDesktop.Appearance.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Host.Abstractions\LanMountainDesktop.Host.Abstractions.csproj" />
+  </ItemGroup>
+</Project>

LanMountainDesktop.DesktopHost/DesktopBootstrap.cs

@@ -0,0 +1,31 @@
+using System;
+using Avalonia;
+
+namespace LanMountainDesktop.DesktopHost;
+
+public static class DesktopBootstrap
+{
+    public static void InitializeStartupServices(
+        Action initializeTelemetryIdentity,
+        Action initializeCrashTelemetry,
+        Action initializeUsageTelemetry,
+        Action scheduleStartupCleanup)
+    {
+        ArgumentNullException.ThrowIfNull(initializeTelemetryIdentity);
+        ArgumentNullException.ThrowIfNull(initializeCrashTelemetry);
+        ArgumentNullException.ThrowIfNull(initializeUsageTelemetry);
+        ArgumentNullException.ThrowIfNull(scheduleStartupCleanup);
+
+        initializeTelemetryIdentity();
+        initializeCrashTelemetry();
+        initializeUsageTelemetry();
+        scheduleStartupCleanup();
+    }
+
+    public static void InitializeApplication(Application application, Action initializeShell)
+    {
+        ArgumentNullException.ThrowIfNull(application);
+        ArgumentNullException.ThrowIfNull(initializeShell);
+        initializeShell();
+    }
+}

LanMountainDesktop.DesktopHost/DesktopShellHost.cs

@@ -0,0 +1,55 @@
+using System;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+using LanMountainDesktop.Host.Abstractions;
+
+namespace LanMountainDesktop.DesktopHost;
+
+public sealed class DesktopShellHost : IDesktopShellHost
+{
+    private readonly Action _initializePluginRuntime;
+    private readonly Action _initializeTrayIcon;
+    private readonly Action<IClassicDesktopStyleApplicationLifetime> _createAndAssignMainWindow;
+    private readonly Action _performExitCleanup;
+    private readonly Action _startActivationListener;
+    private readonly Action _startWeatherRefresh;
+
+    public DesktopShellHost(
+        Action initializePluginRuntime,
+        Action initializeTrayIcon,
+        Action<IClassicDesktopStyleApplicationLifetime> createAndAssignMainWindow,
+        Action performExitCleanup,
+        Action startActivationListener,
+        Action startWeatherRefresh)
+    {
+        _initializePluginRuntime = initializePluginRuntime;
+        _initializeTrayIcon = initializeTrayIcon;
+        _createAndAssignMainWindow = createAndAssignMainWindow;
+        _performExitCleanup = performExitCleanup;
+        _startActivationListener = startActivationListener;
+        _startWeatherRefresh = startWeatherRefresh;
+    }
+
+    public void Initialize()
+    {
+        throw new InvalidOperationException("An application instance is required to initialize the desktop shell.");
+    }
+
+    public void Initialize(Application application)
+    {
+        ArgumentNullException.ThrowIfNull(application);
+
+        _initializePluginRuntime();
+        _initializeTrayIcon();
+
+        if (application.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            desktop.Exit += (_, _) => _performExitCleanup();
+            _createAndAssignMainWindow(desktop);
+            _startActivationListener();
+        }
+
+        _startWeatherRefresh();
+    }
+}

LanMountainDesktop.DesktopHost/DesktopStartupCoordinator.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace LanMountainDesktop.DesktopHost;
+
+public sealed class DesktopStartupCoordinator
+{
+    private readonly Action _restoreWorkspaceState;
+
+    public DesktopStartupCoordinator(Action restoreWorkspaceState)
+    {
+        _restoreWorkspaceState = restoreWorkspaceState ?? throw new ArgumentNullException(nameof(restoreWorkspaceState));
+    }
+
+    public void Restore() => _restoreWorkspaceState();
+}

LanMountainDesktop.DesktopHost/LanMountainDesktop.DesktopHost.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Avalonia" Version="11.3.12" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\LanMountainDesktop.PluginSdk\LanMountainDesktop.PluginSdk.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Shared.Contracts\LanMountainDesktop.Shared.Contracts.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Settings.Core\LanMountainDesktop.Settings.Core.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Appearance\LanMountainDesktop.Appearance.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.DesktopComponents.Runtime\LanMountainDesktop.DesktopComponents.Runtime.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Host.Abstractions\LanMountainDesktop.Host.Abstractions.csproj" />
+  </ItemGroup>
+</Project>

LanMountainDesktop.DesktopHost/SettingsWindowHost.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace LanMountainDesktop.DesktopHost;
+
+public sealed class SettingsWindowHost
+{
+    private readonly Action<string, string?> _openSettingsWindow;
+
+    public SettingsWindowHost(Action<string, string?> openSettingsWindow)
+    {
+        _openSettingsWindow = openSettingsWindow ?? throw new ArgumentNullException(nameof(openSettingsWindow));
+    }
+
+    public void Open(string source, string? pageId = null)
+    {
+        _openSettingsWindow(source, pageId);
+    }
+}

LanMountainDesktop.DesktopHost/ShutdownCoordinator.cs

@@ -0,0 +1,19 @@
+using System;
+
+namespace LanMountainDesktop.DesktopHost;
+
+public sealed class ShutdownCoordinator
+{
+    private readonly Action<bool, string> _prepareForShutdown;
+    private readonly Action<string> _resetShutdownIntent;
+
+    public ShutdownCoordinator(Action<bool, string> prepareForShutdown, Action<string> resetShutdownIntent)
+    {
+        _prepareForShutdown = prepareForShutdown ?? throw new ArgumentNullException(nameof(prepareForShutdown));
+        _resetShutdownIntent = resetShutdownIntent ?? throw new ArgumentNullException(nameof(resetShutdownIntent));
+    }
+
+    public void Prepare(bool isRestart, string source) => _prepareForShutdown(isRestart, source);
+
+    public void Reset(string source) => _resetShutdownIntent(source);
+}

LanMountainDesktop.Host.Abstractions/ComponentChromeContext.cs

@@ -0,0 +1,12 @@
+using LanMountainDesktop.PluginSdk;
+using LanMountainDesktop.Shared.Contracts;
+
+namespace LanMountainDesktop.Host.Abstractions;
+
+public sealed record ComponentChromeContext(
+    string ComponentId,
+    string? PlacementId,
+    double CellSize,
+    double GlobalCornerRadiusScale,
+    AppearanceCornerRadiusTokens CornerRadiusTokens,
+    SettingsScope Scope = SettingsScope.App);

LanMountainDesktop.Host.Abstractions/IDesktopShellHost.cs

@@ -0,0 +1,6 @@
+namespace LanMountainDesktop.Host.Abstractions;
+
+public interface IDesktopShellHost
+{
+    void Initialize();
+}

LanMountainDesktop.Host.Abstractions/LanMountainDesktop.Host.Abstractions.csproj

@@ -1,11 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
   <PropertyGroup>
-    <OutputType>Exe</OutputType>
     <TargetFramework>net10.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
-    <Version>1.0.0</Version>
+    <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
-
+  <ItemGroup>
+    <ProjectReference Include="..\LanMountainDesktop.PluginSdk\LanMountainDesktop.PluginSdk.csproj" />
+  </ItemGroup>
 </Project>

LanMountainDesktop.PluginSdk/IPluginAppearanceContext.cs

@@ -0,0 +1,10 @@
+namespace LanMountainDesktop.PluginSdk;
+
+public interface IPluginAppearanceContext
+{
+    PluginAppearanceSnapshot Snapshot { get; }
+
+    double ResolveScaledCornerRadius(double baseRadius, double? minimum = null, double? maximum = null);
+
+    double ResolveCornerRadius(PluginCornerRadiusPreset preset, double? minimum = null, double? maximum = null);
+}

LanMountainDesktop.PluginSdk/IPluginRuntimeContext.cs

@@ -12,6 +12,8 @@ public interface IPluginRuntimeContext
 
     IReadOnlyDictionary<string, object?> Properties { get; }
 
+    IPluginAppearanceContext Appearance { get; }
+
     T? GetService<T>();
 
     bool TryGetProperty<T>(string key, out T? value);

LanMountainDesktop.PluginSdk/LanMountainDesktop.PluginSdk.csproj

@@ -4,7 +4,15 @@
     <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
-    <Version>3.0.0</Version>
+    <Version>4.0.0</Version>
+    <PackageId>LanMountainDesktop.PluginSdk</PackageId>
+    <IsPackable>true</IsPackable>
+    <Authors>LanMountainDesktop</Authors>
+    <Description>Official plugin SDK for LanMountainDesktop, including plugin manifest contracts, runtime interfaces, and registration extensions.</Description>
+    <PackageTags>LanMountainDesktop;Plugin;SDK;Avalonia</PackageTags>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+    <RepositoryUrl>https://github.com/wwiinnddyy/LanMountainDesktop</RepositoryUrl>
+    <RepositoryType>git</RepositoryType>
   </PropertyGroup>
 
   <ItemGroup>
@@ -12,6 +20,13 @@
     <PackageReference Include="Avalonia" Version="11.3.12" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection.Abstractions" Version="10.0.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="10.0.0" />
+    <ProjectReference Include="..\LanMountainDesktop.Shared.Contracts\LanMountainDesktop.Shared.Contracts.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="README.md" Pack="true" PackagePath="\" />
+    <None Include="buildTransitive\LanMountainDesktop.PluginSdk.props" Pack="true" PackagePath="buildTransitive\" />
+    <None Include="buildTransitive\LanMountainDesktop.PluginSdk.targets" Pack="true" PackagePath="buildTransitive\" />
   </ItemGroup>
 
 </Project>

LanMountainDesktop.PluginSdk/PluginAppearanceContext.cs

@@ -0,0 +1,49 @@
+namespace LanMountainDesktop.PluginSdk;
+
+public sealed class PluginAppearanceContext : IPluginAppearanceContext
+{
+    public PluginAppearanceContext(PluginAppearanceSnapshot snapshot)
+    {
+        ArgumentNullException.ThrowIfNull(snapshot);
+        ArgumentNullException.ThrowIfNull(snapshot.CornerRadiusTokens);
+
+        Snapshot = snapshot with
+        {
+            GlobalCornerRadiusScale = Math.Max(0d, snapshot.GlobalCornerRadiusScale),
+            ThemeVariant = string.IsNullOrWhiteSpace(snapshot.ThemeVariant)
+                ? "Unknown"
+                : snapshot.ThemeVariant.Trim()
+        };
+    }
+
+    public PluginAppearanceSnapshot Snapshot { get; }
+
+    public double ResolveScaledCornerRadius(double baseRadius, double? minimum = null, double? maximum = null)
+    {
+        var scale = Snapshot.GlobalCornerRadiusScale;
+        var scaled = Math.Max(0d, baseRadius) * scale;
+        var scaledMin = minimum.HasValue ? minimum.Value * scale : scaled;
+        var scaledMax = maximum.HasValue ? maximum.Value * scale : scaled;
+        return minimum.HasValue || maximum.HasValue
+            ? Math.Clamp(scaled, scaledMin, scaledMax)
+            : scaled;
+    }
+
+    public double ResolveCornerRadius(PluginCornerRadiusPreset preset, double? minimum = null, double? maximum = null)
+    {
+        var resolved = Math.Max(0d, Snapshot.CornerRadiusTokens.Get(preset));
+        if (!minimum.HasValue && !maximum.HasValue)
+        {
+            return resolved;
+        }
+
+        var clampedMin = minimum ?? resolved;
+        var clampedMax = maximum ?? resolved;
+        if (clampedMin > clampedMax)
+        {
+            (clampedMin, clampedMax) = (clampedMax, clampedMin);
+        }
+
+        return Math.Clamp(resolved, clampedMin, clampedMax);
+    }
+}

LanMountainDesktop.PluginSdk/PluginAppearanceSnapshot.cs

@@ -0,0 +1,6 @@
+namespace LanMountainDesktop.PluginSdk;
+
+public sealed record PluginAppearanceSnapshot(
+    double GlobalCornerRadiusScale,
+    PluginCornerRadiusTokens CornerRadiusTokens,
+    string ThemeVariant);

LanMountainDesktop.PluginSdk/PluginCornerRadiusPreset.cs

@@ -0,0 +1,13 @@
+namespace LanMountainDesktop.PluginSdk;
+
+public enum PluginCornerRadiusPreset
+{
+    Default = 0,
+    Micro = 1,
+    Xs = 2,
+    Sm = 3,
+    Md = 4,
+    Lg = 5,
+    Xl = 6,
+    Island = 7
+}

LanMountainDesktop.PluginSdk/PluginCornerRadiusTokens.cs

@@ -0,0 +1,49 @@
+using Avalonia;
+using LanMountainDesktop.Shared.Contracts;
+
+namespace LanMountainDesktop.PluginSdk;
+
+public sealed record PluginCornerRadiusTokens(
+    double Micro,
+    double Xs,
+    double Sm,
+    double Md,
+    double Lg,
+    double Xl,
+    double Island)
+{
+    public double Get(PluginCornerRadiusPreset preset)
+    {
+        return preset switch
+        {
+            PluginCornerRadiusPreset.Default => Md,
+            PluginCornerRadiusPreset.Micro => Micro,
+            PluginCornerRadiusPreset.Xs => Xs,
+            PluginCornerRadiusPreset.Sm => Sm,
+            PluginCornerRadiusPreset.Md => Md,
+            PluginCornerRadiusPreset.Lg => Lg,
+            PluginCornerRadiusPreset.Xl => Xl,
+            PluginCornerRadiusPreset.Island => Island,
+            _ => Md
+        };
+    }
+
+    public CornerRadius ToCornerRadius(PluginCornerRadiusPreset preset)
+    {
+        return new CornerRadius(Get(preset));
+    }
+
+    public static PluginCornerRadiusTokens FromShared(AppearanceCornerRadiusTokens tokens)
+    {
+        ArgumentNullException.ThrowIfNull(tokens);
+
+        return new PluginCornerRadiusTokens(
+            tokens.Micro.TopLeft,
+            tokens.Xs.TopLeft,
+            tokens.Sm.TopLeft,
+            tokens.Md.TopLeft,
+            tokens.Lg.TopLeft,
+            tokens.Xl.TopLeft,
+            tokens.Island.TopLeft);
+    }
+}

LanMountainDesktop.PluginSdk/PluginDesktopComponentContext.cs

@@ -11,6 +11,7 @@ public sealed class PluginDesktopComponentContext
         string componentId,
         string? placementId,
         double cellSize,
+        IPluginAppearanceContext appearance,
         IPluginSettingsService? pluginSettings = null)
     {
         ArgumentNullException.ThrowIfNull(manifest);
@@ -19,6 +20,7 @@ public sealed class PluginDesktopComponentContext
         ArgumentException.ThrowIfNullOrWhiteSpace(componentId);
         ArgumentNullException.ThrowIfNull(services);
         ArgumentNullException.ThrowIfNull(properties);
+        ArgumentNullException.ThrowIfNull(appearance);
 
         Manifest = manifest;
         PluginDirectory = pluginDirectory;
@@ -28,6 +30,7 @@ public sealed class PluginDesktopComponentContext
         ComponentId = componentId.Trim();
         PlacementId = string.IsNullOrWhiteSpace(placementId) ? null : placementId.Trim();
         CellSize = Math.Max(1, cellSize);
+        Appearance = appearance;
         PluginSettings = pluginSettings;
     }
 
@@ -47,8 +50,24 @@ public sealed class PluginDesktopComponentContext
 
     public double CellSize { get; }
 
+    public IPluginAppearanceContext Appearance { get; }
+
+    public double GlobalCornerRadiusScale => Appearance.Snapshot.GlobalCornerRadiusScale;
+
+    public PluginCornerRadiusTokens CornerRadiusTokens => Appearance.Snapshot.CornerRadiusTokens;
+
     public IPluginSettingsService? PluginSettings { get; }
 
+    public double ResolveScaledCornerRadius(double baseRadius, double? minimum = null, double? maximum = null)
+    {
+        return Appearance.ResolveScaledCornerRadius(baseRadius, minimum, maximum);
+    }
+
+    public double ResolveCornerRadius(PluginCornerRadiusPreset preset, double? minimum = null, double? maximum = null)
+    {
+        return Appearance.ResolveCornerRadius(preset, minimum, maximum);
+    }
+
     public T? GetService<T>()
     {
         return (T?)Services.GetService(typeof(T));

LanMountainDesktop.PluginSdk/PluginDesktopComponentOptions.cs

@@ -0,0 +1,28 @@
+namespace LanMountainDesktop.PluginSdk;
+
+public sealed class PluginDesktopComponentOptions
+{
+    public required string ComponentId { get; init; }
+
+    public required string DisplayName { get; init; }
+
+    public string IconKey { get; init; } = "PuzzlePiece";
+
+    public string Category { get; init; } = "Plugins";
+
+    public int MinWidthCells { get; init; } = 2;
+
+    public int MinHeightCells { get; init; } = 2;
+
+    public bool AllowDesktopPlacement { get; init; } = true;
+
+    public bool AllowStatusBarPlacement { get; init; }
+
+    public PluginDesktopComponentResizeMode ResizeMode { get; init; } = PluginDesktopComponentResizeMode.Proportional;
+
+    public string? DisplayNameLocalizationKey { get; init; }
+
+    public PluginCornerRadiusPreset CornerRadiusPreset { get; init; } = PluginCornerRadiusPreset.Default;
+
+    public Func<IPluginAppearanceContext, double, double>? CornerRadiusResolver { get; init; }
+}

LanMountainDesktop.PluginSdk/PluginDesktopComponentRegistration.cs

@@ -5,67 +5,37 @@ namespace LanMountainDesktop.PluginSdk;
 public sealed class PluginDesktopComponentRegistration
 {
     public PluginDesktopComponentRegistration(
-        string componentId,
-        string displayName,
         Func<IServiceProvider, PluginDesktopComponentContext, Control> controlFactory,
-        string iconKey = "PuzzlePiece",
+        PluginDesktopComponentOptions options)
-        string category = "Plugins",
-        int minWidthCells = 2,
-        int minHeightCells = 2,
-        bool allowDesktopPlacement = true,
-        bool allowStatusBarPlacement = false,
-        PluginDesktopComponentResizeMode resizeMode = PluginDesktopComponentResizeMode.Proportional,
-        string? displayNameLocalizationKey = null,
-        Func<double, double>? cornerRadiusResolver = null)
     {
-        ArgumentException.ThrowIfNullOrWhiteSpace(componentId);
-        ArgumentException.ThrowIfNullOrWhiteSpace(displayName);
-        ArgumentException.ThrowIfNullOrWhiteSpace(iconKey);
-        ArgumentException.ThrowIfNullOrWhiteSpace(category);
         ArgumentNullException.ThrowIfNull(controlFactory);
+        ArgumentNullException.ThrowIfNull(options);
+        ArgumentException.ThrowIfNullOrWhiteSpace(options.ComponentId);
+        ArgumentException.ThrowIfNullOrWhiteSpace(options.DisplayName);
+        ArgumentException.ThrowIfNullOrWhiteSpace(options.IconKey);
+        ArgumentException.ThrowIfNullOrWhiteSpace(options.Category);
 
-        ComponentId = componentId.Trim();
+        ComponentId = options.ComponentId.Trim();
-        DisplayName = displayName.Trim();
+        DisplayName = options.DisplayName.Trim();
-        DisplayNameLocalizationKey = string.IsNullOrWhiteSpace(displayNameLocalizationKey)
+        DisplayNameLocalizationKey = string.IsNullOrWhiteSpace(options.DisplayNameLocalizationKey)
             ? null
-            : displayNameLocalizationKey.Trim();
+            : options.DisplayNameLocalizationKey.Trim();
         ControlFactory = controlFactory;
-        IconKey = iconKey.Trim();
+        IconKey = options.IconKey.Trim();
-        Category = category.Trim();
+        Category = options.Category.Trim();
-        MinWidthCells = Math.Max(1, minWidthCells);
+        MinWidthCells = Math.Max(1, options.MinWidthCells);
-        MinHeightCells = Math.Max(1, minHeightCells);
+        MinHeightCells = Math.Max(1, options.MinHeightCells);
-        AllowDesktopPlacement = allowDesktopPlacement;
+        AllowDesktopPlacement = options.AllowDesktopPlacement;
-        AllowStatusBarPlacement = allowStatusBarPlacement;
+        AllowStatusBarPlacement = options.AllowStatusBarPlacement;
-        ResizeMode = resizeMode;
+        ResizeMode = options.ResizeMode;
-        CornerRadiusResolver = cornerRadiusResolver;
+        CornerRadiusPreset = options.CornerRadiusPreset;
+        CornerRadiusResolver = options.CornerRadiusResolver;
     }
 
     public PluginDesktopComponentRegistration(
-        string componentId,
-        string displayName,
         Func<PluginDesktopComponentContext, Control> controlFactory,
-        string iconKey = "PuzzlePiece",
+        PluginDesktopComponentOptions options)
-        string category = "Plugins",
+        : this((_, context) => controlFactory(context), options)
-        int minWidthCells = 2,
-        int minHeightCells = 2,
-        bool allowDesktopPlacement = true,
-        bool allowStatusBarPlacement = false,
-        PluginDesktopComponentResizeMode resizeMode = PluginDesktopComponentResizeMode.Proportional,
-        string? displayNameLocalizationKey = null,
-        Func<double, double>? cornerRadiusResolver = null)
-        : this(
-            componentId,
-            displayName,
-            (_, context) => controlFactory(context),
-            iconKey,
-            category,
-            minWidthCells,
-            minHeightCells,
-            allowDesktopPlacement,
-            allowStatusBarPlacement,
-            resizeMode,
-            displayNameLocalizationKey,
-            cornerRadiusResolver)
     {
     }
 
@@ -91,5 +61,25 @@ public sealed class PluginDesktopComponentRegistration
 
     public PluginDesktopComponentResizeMode ResizeMode { get; }
 
-    public Func<double, double>? CornerRadiusResolver { get; }
+    public PluginCornerRadiusPreset CornerRadiusPreset { get; }
+
+    public Func<IPluginAppearanceContext, double, double>? CornerRadiusResolver { get; }
+
+    public double ResolveCornerRadius(IPluginAppearanceContext appearance, double cellSize)
+    {
+        ArgumentNullException.ThrowIfNull(appearance);
+
+        var resolved = CornerRadiusResolver is not null
+            ? CornerRadiusResolver(appearance, Math.Max(1d, cellSize))
+            : CornerRadiusPreset == PluginCornerRadiusPreset.Default
+                ? appearance.ResolveScaledCornerRadius(
+                    Math.Clamp(Math.Max(1d, cellSize) * 0.22, 8, 18),
+                    8,
+                    18)
+                : appearance.ResolveCornerRadius(CornerRadiusPreset);
+
+        return double.IsFinite(resolved)
+            ? Math.Max(0d, resolved)
+            : appearance.ResolveCornerRadius(PluginCornerRadiusPreset.Default);
+    }
 }

LanMountainDesktop.PluginSdk/PluginManifest.cs

@@ -87,8 +87,8 @@ public sealed record PluginManifest(
             throw new InvalidOperationException(
                 $"Plugin '{normalized.Id}' targets API version '{normalized.ApiVersion}' (major {requestedVersion.Major}), " +
                 $"but the host provides '{PluginSdkInfo.ApiVersion}' (major {currentVersion.Major}). " +
-                $"This host only supports v{currentVersion.Major}.x plugins. " +
+                $"This host only supports v{currentVersion.Major}.x plugins and rejects v{requestedVersion.Major}.x packages by default. " +
-                $"Migrate the plugin to API {PluginSdkInfo.ApiVersion} and rebuild the package.");
+                $"Migrate the plugin manifest and code to API {PluginSdkInfo.ApiVersion}, then rebuild and republish the package.");
         }
 
         return normalized;

LanMountainDesktop.PluginSdk/PluginSdkInfo.cs

@@ -2,7 +2,7 @@ namespace LanMountainDesktop.PluginSdk;
 
 public static class PluginSdkInfo
 {
-    public const string ApiVersion = "3.0.0";
+    public const string ApiVersion = "4.0.0";
     public const string ManifestFileName = "plugin.json";
     public const string PackageFileExtension = ".laapp";
     public const string DataDirectoryName = "Data";

LanMountainDesktop.PluginSdk/PluginServiceCollectionExtensions.cs

@@ -30,34 +30,15 @@ public static class PluginServiceCollectionExtensions
 
     public static IServiceCollection AddPluginDesktopComponent<TControl>(
         this IServiceCollection services,
-        string componentId,
+        PluginDesktopComponentOptions options)
-        string displayName,
-        string iconKey = "PuzzlePiece",
-        string category = "Plugins",
-        int minWidthCells = 2,
-        int minHeightCells = 2,
-        bool allowDesktopPlacement = true,
-        bool allowStatusBarPlacement = false,
-        PluginDesktopComponentResizeMode resizeMode = PluginDesktopComponentResizeMode.Proportional,
-        string? displayNameLocalizationKey = null,
-        Func<double, double>? cornerRadiusResolver = null)
         where TControl : Control
     {
         ArgumentNullException.ThrowIfNull(services);
+        ArgumentNullException.ThrowIfNull(options);
 
         services.AddSingleton(new PluginDesktopComponentRegistration(
-            componentId,
-            displayName,
             (provider, context) => ActivatorUtilities.CreateInstance<TControl>(provider, context),
-            iconKey,
+            options));
-            category,
-            minWidthCells,
-            minHeightCells,
-            allowDesktopPlacement,
-            allowStatusBarPlacement,
-            resizeMode,
-            displayNameLocalizationKey,
-            cornerRadiusResolver));
         return services;
     }
 

LanMountainDesktop.PluginSdk/README.md

@@ -0,0 +1,21 @@
+# LanMountainDesktop.PluginSdk
+
+Official SDK package for LanMountainDesktop plugins.
+
+## Includes
+
+- `IPlugin`/`PluginBase` entry abstractions
+- `PluginManifest` and shared contract declarations
+- desktop component registration extensions
+- plugin runtime context and host service abstractions
+- build-transitive packaging targets for `.laapp` output
+
+## Quick Start
+
+```xml
+<ItemGroup>
+  <PackageReference Include="LanMountainDesktop.PluginSdk" Version="4.0.0" />
+</ItemGroup>
+```
+
+Create `plugin.json` in your plugin project root, then run `dotnet build` to produce both build output and a `.laapp` package.

LanMountainDesktop.PluginSdk/buildTransitive/LanMountainDesktop.PluginSdk.props

@@ -0,0 +1,14 @@
+<Project>
+  <PropertyGroup>
+    <LanMountainPluginManifestFileName Condition="'$(LanMountainPluginManifestFileName)' == ''">plugin.json</LanMountainPluginManifestFileName>
+    <LanMountainPluginPackageExtension Condition="'$(LanMountainPluginPackageExtension)' == ''">.laapp</LanMountainPluginPackageExtension>
+    <LanMountainPluginPackageOutputDirectory Condition="'$(LanMountainPluginPackageOutputDirectory)' == ''">$(MSBuildProjectDirectory)\</LanMountainPluginPackageOutputDirectory>
+
+    <LanMountainPluginEnablePackaging Condition="'$(LanMountainPluginEnablePackaging)' == '' and Exists('$(MSBuildProjectDirectory)\$(LanMountainPluginManifestFileName)')">true</LanMountainPluginEnablePackaging>
+    <LanMountainPluginEnablePackaging Condition="'$(LanMountainPluginEnablePackaging)' == ''">false</LanMountainPluginEnablePackaging>
+  </PropertyGroup>
+
+  <ItemGroup Condition="Exists('$(MSBuildProjectDirectory)\$(LanMountainPluginManifestFileName)')">
+    <None Update="$(LanMountainPluginManifestFileName)" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
+</Project>

LanMountainDesktop.PluginSdk/buildTransitive/LanMountainDesktop.PluginSdk.targets

@@ -0,0 +1,51 @@
+<Project>
+  <Target Name="ValidateLanMountainPluginManifest"
+          BeforeTargets="Build"
+          Condition="'$(LanMountainPluginEnablePackaging)' == 'true'">
+    <Error Condition="!Exists('$(MSBuildProjectDirectory)\$(LanMountainPluginManifestFileName)')"
+           Text="LanMountain plugin packaging is enabled, but '$(LanMountainPluginManifestFileName)' was not found in '$(MSBuildProjectDirectory)'." />
+  </Target>
+
+  <Target Name="CreateLanMountainPluginPackage"
+          AfterTargets="Build"
+          Condition="'$(LanMountainPluginEnablePackaging)' == 'true'">
+    <PropertyGroup>
+      <_LanMountainPluginBuildOutputDirectory>$(LanMountainPluginBuildOutputDirectory)</_LanMountainPluginBuildOutputDirectory>
+      <_LanMountainPluginBuildOutputDirectory Condition="'$(_LanMountainPluginBuildOutputDirectory)' == ''">$(TargetDir)</_LanMountainPluginBuildOutputDirectory>
+      <_LanMountainPluginBuildOutputDirectory Condition="'$(_LanMountainPluginBuildOutputDirectory)' == ''">$(MSBuildProjectDirectory)\$(OutputPath)</_LanMountainPluginBuildOutputDirectory>
+      <_LanMountainPluginAssemblyName>$(LanMountainPluginAssemblyName)</_LanMountainPluginAssemblyName>
+      <_LanMountainPluginAssemblyName Condition="'$(_LanMountainPluginAssemblyName)' == '' and '$(AssemblyName)' != ''">$(AssemblyName)</_LanMountainPluginAssemblyName>
+      <_LanMountainPluginAssemblyName Condition="'$(_LanMountainPluginAssemblyName)' == ''">$(MSBuildProjectName)</_LanMountainPluginAssemblyName>
+      <_LanMountainPluginPackageVersion>$(LanMountainPluginPackageVersion)</_LanMountainPluginPackageVersion>
+      <_LanMountainPluginPackageVersion Condition="'$(_LanMountainPluginPackageVersion)' == '' and '$(Version)' != ''">$(Version)</_LanMountainPluginPackageVersion>
+      <_LanMountainPluginPackageVersion Condition="'$(_LanMountainPluginPackageVersion)' == ''">1.0.0</_LanMountainPluginPackageVersion>
+      <_LanMountainPluginPackageOutputDirectory>$(LanMountainPluginPackageOutputDirectory)</_LanMountainPluginPackageOutputDirectory>
+      <_LanMountainPluginPackageOutputDirectory Condition="'$(_LanMountainPluginPackageOutputDirectory)' == ''">$(MSBuildProjectDirectory)\</_LanMountainPluginPackageOutputDirectory>
+      <_LanMountainPluginPackageFileName>$(LanMountainPluginPackageFileName)</_LanMountainPluginPackageFileName>
+      <_LanMountainPluginPackageFileName Condition="'$(_LanMountainPluginPackageFileName)' == ''">$(_LanMountainPluginAssemblyName).$(_LanMountainPluginPackageVersion)$(LanMountainPluginPackageExtension)</_LanMountainPluginPackageFileName>
+      <_LanMountainPluginPackagePath>$(LanMountainPluginPackagePath)</_LanMountainPluginPackagePath>
+      <_LanMountainPluginPackagePath Condition="'$(_LanMountainPluginPackagePath)' == ''">$(_LanMountainPluginPackageOutputDirectory)$(_LanMountainPluginPackageFileName)</_LanMountainPluginPackagePath>
+      <_LanMountainPluginManifestOutputPath>$(_LanMountainPluginBuildOutputDirectory)$(LanMountainPluginManifestFileName)</_LanMountainPluginManifestOutputPath>
+      <_LanMountainPluginDepsPath>$(ProjectDepsFilePath)</_LanMountainPluginDepsPath>
+    </PropertyGroup>
+
+    <Copy SourceFiles="$(MSBuildProjectDirectory)\$(LanMountainPluginManifestFileName)"
+          DestinationFiles="$(_LanMountainPluginManifestOutputPath)"
+          SkipUnchangedFiles="true"
+          Condition="Exists('$(MSBuildProjectDirectory)\$(LanMountainPluginManifestFileName)')" />
+
+    <Error Condition="!Exists('$(_LanMountainPluginManifestOutputPath)')"
+           Text="Plugin manifest '$(_LanMountainPluginManifestOutputPath)' was not found in build output. Ensure '$(LanMountainPluginManifestFileName)' is copied to output." />
+    <Error Condition="!Exists('$(TargetPath)')"
+           Text="Plugin assembly '$(TargetPath)' was not found. Build output is incomplete." />
+    <Error Condition="'$(_LanMountainPluginDepsPath)' != '' and !Exists('$(_LanMountainPluginDepsPath)')"
+           Text="Plugin deps file '$(_LanMountainPluginDepsPath)' was not found. Plugin packages must include a .deps.json file." />
+
+    <MakeDir Directories="$(_LanMountainPluginPackageOutputDirectory)" />
+    <Delete Files="$(_LanMountainPluginPackagePath)" TreatErrorsAsWarnings="true" />
+    <ZipDirectory SourceDirectory="$(_LanMountainPluginBuildOutputDirectory)"
+                  DestinationFile="$(_LanMountainPluginPackagePath)" />
+    <Message Importance="High"
+             Text="LanMountain plugin package generated: $(_LanMountainPluginPackagePath)" />
+  </Target>
+</Project>

LanMountainDesktop.PluginTemplate/LanMountainDesktop.PluginTemplate.csproj

@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <NoWarn>$(NoWarn);NU5128</NoWarn>
+    <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
+    <PackageId>LanMountainDesktop.PluginTemplate</PackageId>
+    <Version>1.0.0</Version>
+    <Authors>LanMountainDesktop</Authors>
+    <Description>Official dotnet new template package for LanMountainDesktop plugins.</Description>
+    <PackageTags>LanMountainDesktop;Plugin;Template;dotnet-new</PackageTags>
+    <PackageType>Template</PackageType>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+    <RepositoryUrl>https://github.com/wwiinnddyy/LanMountainDesktop</RepositoryUrl>
+    <RepositoryType>git</RepositoryType>
+    <IncludeBuildOutput>false</IncludeBuildOutput>
+    <IsPackable>true</IsPackable>
+    <NoDefaultExcludes>true</NoDefaultExcludes>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Remove="content\**\*.cs" />
+    <None Include="README.md" Pack="true" PackagePath="\" />
+    <None Include="content\**\*" Pack="true" PackagePath="content\" />
+  </ItemGroup>
+</Project>

LanMountainDesktop.PluginTemplate/README.md

@@ -0,0 +1,17 @@
+# LanMountainDesktop.PluginTemplate
+
+Official `dotnet new` template package for LanMountainDesktop plugins.
+
+## Install
+
+```powershell
+dotnet new install LanMountainDesktop.PluginTemplate
+```
+
+## Create a plugin
+
+```powershell
+dotnet new lmd-plugin -n YourPluginName
+```
+
+The generated project references `LanMountainDesktop.PluginSdk` and produces a `.laapp` package automatically when built.

LanMountainDesktop.PluginTemplate/content/.template.config/template.json

@@ -0,0 +1,55 @@
+{
+  "$schema": "http://json.schemastore.org/template",
+  "author": "LanMountainDesktop",
+  "classifications": [
+    "LanMountainDesktop",
+    "Plugin",
+    "Desktop"
+  ],
+  "name": "LanMountainDesktop Plugin",
+  "identity": "LanMountainDesktop.PluginTemplate.CSharp",
+  "shortName": "lmd-plugin",
+  "sourceName": "LanMountainDesktop.PluginTemplate",
+  "preferNameDirectory": true,
+  "tags": {
+    "type": "project",
+    "language": "C#"
+  },
+  "symbols": {
+    "pluginId": {
+      "type": "parameter",
+      "datatype": "text",
+      "defaultValue": "LanMountainDesktop.PluginTemplate",
+      "description": "Plugin manifest id.",
+      "replaces": "__PLUGIN_ID__"
+    },
+    "pluginAuthor": {
+      "type": "parameter",
+      "datatype": "text",
+      "defaultValue": "Your Name",
+      "description": "Plugin author.",
+      "replaces": "__PLUGIN_AUTHOR__"
+    },
+    "pluginName": {
+      "type": "parameter",
+      "datatype": "text",
+      "defaultValue": "LanMountain Plugin Template",
+      "description": "Display name shown in plugin manifest.",
+      "replaces": "__PLUGIN_NAME__"
+    },
+    "pluginDescription": {
+      "type": "parameter",
+      "datatype": "text",
+      "defaultValue": "Plugin generated from the official LanMountainDesktop template.",
+      "description": "Plugin description shown in plugin manifest.",
+      "replaces": "__PLUGIN_DESCRIPTION__"
+    },
+    "pluginSdkVersion": {
+      "type": "parameter",
+      "datatype": "text",
+      "defaultValue": "4.0.0",
+      "description": "LanMountainDesktop.PluginSdk package version.",
+      "replaces": "__PLUGIN_SDK_VERSION__"
+    }
+  }
+}

LanMountainDesktop.PluginTemplate/content/LanMountainDesktop.PluginTemplate.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <Version>1.0.0</Version>
+    <EnableDynamicLoading>true</EnableDynamicLoading>
+    <LanMountainPluginPackageVersion>$(Version)</LanMountainPluginPackageVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="LanMountainDesktop.PluginSdk" Version="__PLUGIN_SDK_VERSION__" ExcludeAssets="runtime" PrivateAssets="all" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="plugin.json" CopyToOutputDirectory="PreserveNewest" />
+    <None Include="Localization\*.json" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
+</Project>

LanMountainDesktop.PluginTemplate/content/Localization/en-US.json

@@ -0,0 +1,2 @@
+{
+}

LanMountainDesktop.PluginTemplate/content/Localization/zh-CN.json

@@ -0,0 +1,2 @@
+{
+}

LanMountainDesktop.PluginTemplate/content/Plugin.cs

@@ -0,0 +1,15 @@
+using LanMountainDesktop.PluginSdk;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+
+namespace LanMountainDesktop.PluginTemplate;
+
+[PluginEntrance]
+public sealed class Plugin : PluginBase
+{
+    public override void Initialize(HostBuilderContext context, IServiceCollection services)
+    {
+        _ = context;
+        _ = services;
+    }
+}

LanMountainDesktop.PluginTemplate/content/README.md

@@ -0,0 +1,24 @@
+# __PLUGIN_NAME__
+
+Official-style plugin scaffold generated for LanMountainDesktop.
+
+## Build
+
+```powershell
+dotnet build -c Release
+```
+
+`LanMountainDesktop.PluginSdk` build targets will generate:
+
+- plugin output files under `bin/<Configuration>/<TFM>/`
+- a `.laapp` package in the project root
+
+## Manifest
+
+Update `plugin.json` fields as needed before release:
+
+- `id`
+- `name`
+- `description`
+- `author`
+- `version`

LanMountainDesktop.PluginTemplate/content/plugin.json

@@ -0,0 +1,10 @@
+{
+  "id": "__PLUGIN_ID__",
+  "name": "__PLUGIN_NAME__",
+  "description": "__PLUGIN_DESCRIPTION__",
+  "author": "__PLUGIN_AUTHOR__",
+  "version": "1.0.0",
+  "apiVersion": "4.0.0",
+  "entranceAssembly": "LanMountainDesktop.PluginTemplate.dll",
+  "sharedContracts": []
+}

LanMountainDesktop.Settings.Core/GlobalAppearanceSettings.cs

@@ -0,0 +1,18 @@
+namespace LanMountainDesktop.Settings.Core;
+
+public static class GlobalAppearanceSettings
+{
+    public const double DefaultCornerRadiusScale = 1.0;
+    public const double MinimumCornerRadiusScale = 0.0;
+    public const double MaximumCornerRadiusScale = 2.50;
+
+    public static double NormalizeCornerRadiusScale(double value)
+    {
+        if (double.IsNaN(value) || double.IsInfinity(value))
+        {
+            return DefaultCornerRadiusScale;
+        }
+
+        return Math.Clamp(value, MinimumCornerRadiusScale, MaximumCornerRadiusScale);
+    }
+}

LanMountainDesktop.Settings.Core/LanMountainDesktop.Settings.Core.csproj

@@ -1,15 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
   <PropertyGroup>
-    <OutputType>Exe</OutputType>
     <TargetFramework>net10.0</TargetFramework>
-    <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
-    <Version>1.0.0</Version>
+    <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
-
   <ItemGroup>
-    <ProjectReference Include="..\..\..\LanMountainDesktop.PluginSdk\LanMountainDesktop.PluginSdk.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.PluginSdk\LanMountainDesktop.PluginSdk.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Shared.Contracts\LanMountainDesktop.Shared.Contracts.csproj" />
   </ItemGroup>
-
 </Project>

LanMountainDesktop.Shared.Contracts/AppearanceCornerRadiusTokens.cs

@@ -0,0 +1,12 @@
+using Avalonia;
+
+namespace LanMountainDesktop.Shared.Contracts;
+
+public sealed record AppearanceCornerRadiusTokens(
+    CornerRadius Micro,
+    CornerRadius Xs,
+    CornerRadius Sm,
+    CornerRadius Md,
+    CornerRadius Lg,
+    CornerRadius Xl,
+    CornerRadius Island);

LanMountainDesktop.Shared.Contracts/LanMountainDesktop.Shared.Contracts.csproj

@@ -0,0 +1,22 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Version>1.0.0</Version>
+    <PackageId>LanMountainDesktop.Shared.Contracts</PackageId>
+    <IsPackable>true</IsPackable>
+    <Authors>LanMountainDesktop</Authors>
+    <Description>Shared contracts used by LanMountainDesktop host and plugins for cross-boundary communication.</Description>
+    <PackageTags>LanMountainDesktop;Plugin;SharedContracts;Avalonia</PackageTags>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
+    <RepositoryUrl>https://github.com/wwiinnddyy/LanMountainDesktop</RepositoryUrl>
+    <RepositoryType>git</RepositoryType>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Avalonia" Version="11.3.12" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="README.md" Pack="true" PackagePath="\" />
+  </ItemGroup>
+</Project>

LanMountainDesktop.Shared.Contracts/README.md

@@ -0,0 +1,16 @@
+# LanMountainDesktop.Shared.Contracts
+
+Shared contracts package for LanMountainDesktop host and plugin ecosystems.
+
+## Includes
+
+- cross-boundary records used by host/runtime and plugins
+- contract types intended for stable shared communication
+
+## Usage
+
+```xml
+<ItemGroup>
+  <PackageReference Include="LanMountainDesktop.Shared.Contracts" Version="1.0.0" />
+</ItemGroup>
+```

LanMountainDesktop.Tests/BuiltInDesktopHostCornerRadiusBaselineTests.cs

@@ -0,0 +1,43 @@
+using System;
+using Avalonia;
+using LanMountainDesktop.Appearance;
+using LanMountainDesktop.ComponentSystem;
+using LanMountainDesktop.Host.Abstractions;
+using LanMountainDesktop.Views.Components;
+using Xunit;
+
+namespace LanMountainDesktop.Tests;
+
+public sealed class BuiltInDesktopHostCornerRadiusBaselineTests
+{
+    [Theory]
+    [InlineData(80d, 0d)]
+    [InlineData(120d, 1d)]
+    [InlineData(160d, 2.5d)]
+    public void BuiltInDesktopHosts_ResolveToTheUnifiedLgBaseline(double cellSize, double globalScale)
+    {
+        var registry = new DesktopComponentRuntimeRegistry(
+            ComponentRegistry.CreateDefault(),
+            DesktopComponentRuntimeRegistry.GetDefaultRegistrations());
+        var expected = AppearanceCornerRadiusTokenFactory.Create(globalScale).Lg.TopLeft;
+
+        foreach (var descriptor in registry.GetDesktopComponents())
+        {
+            var resolved = descriptor.ResolveCornerRadius(CreateChromeContext(descriptor.Definition.Id, cellSize, globalScale));
+            Assert.Equal(expected, resolved, 3);
+        }
+    }
+
+    private static ComponentChromeContext CreateChromeContext(
+        string componentId,
+        double cellSize,
+        double globalScale)
+    {
+        return new ComponentChromeContext(
+            componentId,
+            null,
+            cellSize,
+            globalScale,
+            AppearanceCornerRadiusTokenFactory.Create(globalScale));
+    }
+}

LanMountainDesktop.Tests/CornerRadiusScaleTests.cs

@@ -0,0 +1,91 @@
+using Avalonia;
+using LanMountainDesktop.PluginSdk;
+using LanMountainDesktop.Settings.Core;
+using LanMountainDesktop.Shared.Contracts;
+using Xunit;
+
+namespace LanMountainDesktop.Tests;
+
+public sealed class CornerRadiusScaleTests
+{
+    [Theory]
+    [InlineData(-1d, 0d)]
+    [InlineData(0d, 0d)]
+    [InlineData(0.33d, 0.33d)]
+    [InlineData(1.234d, 1.234d)]
+    [InlineData(2.5d, 2.5d)]
+    [InlineData(3d, 2.5d)]
+    public void NormalizeCornerRadiusScale_ClampsWithoutSnapping(double input, double expected)
+    {
+        Assert.Equal(expected, GlobalAppearanceSettings.NormalizeCornerRadiusScale(input), 3);
+    }
+
+    [Fact]
+    public void NormalizeCornerRadiusScale_UsesDefaultForInvalidValues()
+    {
+        Assert.Equal(
+            GlobalAppearanceSettings.DefaultCornerRadiusScale,
+            GlobalAppearanceSettings.NormalizeCornerRadiusScale(double.NaN),
+            3);
+        Assert.Equal(
+            GlobalAppearanceSettings.DefaultCornerRadiusScale,
+            GlobalAppearanceSettings.NormalizeCornerRadiusScale(double.PositiveInfinity),
+            3);
+    }
+
+    [Fact]
+    public void PluginDesktopComponentContext_AllowsZeroRadiusScaling()
+    {
+        var appearanceContext = new PluginAppearanceContext(new PluginAppearanceSnapshot(
+            GlobalCornerRadiusScale: 0d,
+            CornerRadiusTokens: PluginCornerRadiusTokens.FromShared(new AppearanceCornerRadiusTokens(
+                new CornerRadius(6),
+                new CornerRadius(10),
+                new CornerRadius(14),
+                new CornerRadius(18),
+                new CornerRadius(24),
+                new CornerRadius(30),
+                new CornerRadius(36))),
+            ThemeVariant: "Unknown"));
+
+        var context = new PluginDesktopComponentContext(
+            new PluginManifest("plugin.id", "Plugin Name", "plugin.dll"),
+            "C:\\Plugins\\plugin.id",
+            "C:\\Data\\plugin.id",
+            new NullServiceProvider(),
+            new Dictionary<string, object?>(),
+            "component-1",
+            null,
+            96d,
+            appearanceContext);
+
+        Assert.Equal(0d, context.GlobalCornerRadiusScale, 3);
+        Assert.Equal(0d, context.ResolveScaledCornerRadius(12d), 3);
+        Assert.Equal(0d, context.ResolveScaledCornerRadius(12d, 8d, 18d), 3);
+    }
+
+    [Fact]
+    public void PluginAppearanceContext_ResolveCornerRadius_DoesNotDoubleScalePresetTokens()
+    {
+        var context = new PluginAppearanceContext(new PluginAppearanceSnapshot(
+            GlobalCornerRadiusScale: 2d,
+            CornerRadiusTokens: new PluginCornerRadiusTokens(
+                Micro: 12d,
+                Xs: 20d,
+                Sm: 28d,
+                Md: 36d,
+                Lg: 48d,
+                Xl: 60d,
+                Island: 72d),
+            ThemeVariant: "Light"));
+
+        Assert.Equal(36d, context.ResolveCornerRadius(PluginCornerRadiusPreset.Md), 3);
+        Assert.Equal(36d, context.ResolveCornerRadius(PluginCornerRadiusPreset.Md, maximum: 40d), 3);
+        Assert.Equal(36d, context.ResolveScaledCornerRadius(18d), 3);
+    }
+
+    private sealed class NullServiceProvider : IServiceProvider
+    {
+        public object? GetService(Type serviceType) => null;
+    }
+}

LanMountainDesktop.Tests/DesktopComponentRuntimeRegistrationCornerRadiusTests.cs

@@ -0,0 +1,58 @@
+using Avalonia;
+using Avalonia.Controls;
+using LanMountainDesktop.Host.Abstractions;
+using LanMountainDesktop.Shared.Contracts;
+using LanMountainDesktop.Views.Components;
+using Xunit;
+
+namespace LanMountainDesktop.Tests;
+
+public sealed class DesktopComponentRuntimeRegistrationCornerRadiusTests
+{
+    [Fact]
+    public void LegacyCellSizeResolver_AppliesGlobalCornerRadiusScale()
+    {
+        var registration = new DesktopComponentRuntimeRegistration(
+            componentId: "test.component",
+            displayNameLocalizationKey: null,
+            controlFactory: () => new Border(),
+            cornerRadiusResolver: cellSize => Math.Clamp(cellSize * 0.30, 10, 40));
+
+        var resolver = Assert.IsType<Func<ComponentChromeContext, double>>(registration.CornerRadiusResolver);
+        var resolved = resolver(CreateChromeContext(cellSize: 120, globalScale: 2.0));
+
+        Assert.Equal(72.0, resolved, 3);
+    }
+
+    [Fact]
+    public void ChromeContextResolver_IsNotDoubleScaledByRegistrationWrapper()
+    {
+        var registration = new DesktopComponentRuntimeRegistration(
+            componentId: "test.component",
+            displayNameLocalizationKey: null,
+            controlFactory: _ => new Border(),
+            cornerRadiusResolver: chromeContext => chromeContext.CellSize + chromeContext.GlobalCornerRadiusScale);
+
+        var resolver = Assert.IsType<Func<ComponentChromeContext, double>>(registration.CornerRadiusResolver);
+        var resolved = resolver(CreateChromeContext(cellSize: 50, globalScale: 2.5));
+
+        Assert.Equal(52.5, resolved, 3);
+    }
+
+    private static ComponentChromeContext CreateChromeContext(double cellSize, double globalScale)
+    {
+        return new ComponentChromeContext(
+            ComponentId: "test.component",
+            PlacementId: null,
+            CellSize: cellSize,
+            GlobalCornerRadiusScale: globalScale,
+            CornerRadiusTokens: new AppearanceCornerRadiusTokens(
+                new CornerRadius(6),
+                new CornerRadius(10),
+                new CornerRadius(14),
+                new CornerRadius(18),
+                new CornerRadius(24),
+                new CornerRadius(30),
+                new CornerRadius(36)));
+    }
+}

LanMountainDesktop.Tests/InfoRecommendationHostCornerRadiusTests.cs

@@ -0,0 +1,73 @@
+using System.Collections.Generic;
+using LanMountainDesktop.Appearance;
+using LanMountainDesktop.ComponentSystem;
+using LanMountainDesktop.Host.Abstractions;
+using LanMountainDesktop.Views.Components;
+using Xunit;
+
+namespace LanMountainDesktop.Tests;
+
+public sealed class InfoRecommendationHostCornerRadiusTests
+{
+    private static readonly string[] WideInfoComponentIds =
+    [
+        BuiltInComponentIds.DesktopDailyPoetry,
+        BuiltInComponentIds.DesktopDailyArtwork,
+        BuiltInComponentIds.DesktopDailyWord,
+        BuiltInComponentIds.DesktopCnrDailyNews,
+        BuiltInComponentIds.DesktopIfengNews,
+        BuiltInComponentIds.DesktopBilibiliHotSearch,
+        BuiltInComponentIds.DesktopBaiduHotSearch,
+        BuiltInComponentIds.DesktopStcn24Forum
+    ];
+
+    [Theory]
+    [InlineData(80d)]
+    [InlineData(120d)]
+    [InlineData(160d)]
+    public void InfoHostRegistrations_ResolveToTheUnifiedLgBaseline(double cellSize)
+    {
+        var registry = new DesktopComponentRuntimeRegistry(
+            ComponentRegistry.CreateDefault(),
+            DesktopComponentRuntimeRegistry.GetDefaultRegistrations());
+
+        foreach (var componentId in WideInfoComponentIds)
+        {
+            AssertResolved(registry, componentId, cellSize);
+        }
+
+        AssertResolved(registry, BuiltInComponentIds.DesktopDailyWord2x2, cellSize);
+    }
+
+    private static void AssertResolved(
+        DesktopComponentRuntimeRegistry registry,
+        string componentId,
+        double cellSize)
+    {
+        Assert.True(
+            registry.TryGetDescriptor(componentId, out var descriptor),
+            $"Missing runtime registration for '{componentId}'.");
+
+        var zero = descriptor.ResolveCornerRadius(CreateChromeContext(componentId, cellSize, 0d));
+        var unit = descriptor.ResolveCornerRadius(CreateChromeContext(componentId, cellSize, 1d));
+        var max = descriptor.ResolveCornerRadius(CreateChromeContext(componentId, cellSize, 2.5d));
+
+        Assert.Equal(0d, zero, 3);
+        Assert.Equal(24d, unit, 3);
+        Assert.Equal(60d, max, 3);
+        Assert.True(zero <= unit && unit <= max);
+    }
+
+    private static ComponentChromeContext CreateChromeContext(
+        string componentId,
+        double cellSize,
+        double globalScale)
+    {
+        return new ComponentChromeContext(
+            componentId,
+            null,
+            cellSize,
+            globalScale,
+            AppearanceCornerRadiusTokenFactory.Create(globalScale));
+    }
+}

LanMountainDesktop.Tests/LanMountainDesktop.Tests.csproj

@@ -4,6 +4,7 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>
+    <Version>1.0.0</Version>
   </PropertyGroup>
 
   <ItemGroup>

LanMountainDesktop.Tests/WhiteboardNotePersistenceServiceTests.cs

@@ -0,0 +1,157 @@
+using System;
+using System.IO;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.Services;
+using Xunit;
+
+namespace LanMountainDesktop.Tests;
+
+public sealed class WhiteboardNotePersistenceServiceTests
+{
+    [Fact]
+    public void SaveNote_ThenLoadNote_RoundTripsSnapshot()
+    {
+        using var sandbox = new WhiteboardNotePersistenceSandbox();
+        var service = sandbox.CreateService();
+        var snapshot = CreateSampleSnapshot();
+
+        service.SaveNote("DesktopWhiteboard", "whiteboard-1", snapshot, retentionDays: 15);
+
+        var loaded = service.LoadNote("DesktopWhiteboard", "whiteboard-1", retentionDays: 15);
+
+        Assert.Single(loaded.Strokes);
+        Assert.Equal(2, loaded.Strokes[0].Points.Count);
+        Assert.Equal("#FF112233", loaded.Strokes[0].Color);
+        Assert.True(loaded.SavedUtc > DateTimeOffset.MinValue);
+    }
+
+    [Fact]
+    public void LoadNote_RemovesExpiredSnapshot_WhenRetentionExceeded()
+    {
+        using var sandbox = new WhiteboardNotePersistenceSandbox();
+        var service = sandbox.CreateService();
+
+        service.SaveNote("DesktopWhiteboard", "expired-board", CreateSampleSnapshot(), retentionDays: 7);
+        sandbox.OverrideSavedTimestamp("DesktopWhiteboard", "expired-board", DateTimeOffset.UtcNow.AddDays(-10), retentionDays: 7);
+
+        var loaded = service.LoadNote("DesktopWhiteboard", "expired-board", retentionDays: 7);
+
+        Assert.Empty(loaded.Strokes);
+        Assert.False(sandbox.Exists("DesktopWhiteboard", "expired-board"));
+    }
+
+    [Fact]
+    public void DeleteExpiredNotesBatch_RemovesExpiredRows_AndKeepsFreshRows()
+    {
+        using var sandbox = new WhiteboardNotePersistenceSandbox();
+        var service = sandbox.CreateService();
+
+        service.SaveNote("DesktopWhiteboard", "expired-a", CreateSampleSnapshot(), retentionDays: 7);
+        service.SaveNote("DesktopWhiteboard", "expired-b", CreateSampleSnapshot(), retentionDays: 7);
+        service.SaveNote("DesktopWhiteboard", "fresh-c", CreateSampleSnapshot(), retentionDays: 15);
+
+        sandbox.OverrideSavedTimestamp("DesktopWhiteboard", "expired-a", DateTimeOffset.UtcNow.AddDays(-9), retentionDays: 7);
+        sandbox.OverrideSavedTimestamp("DesktopWhiteboard", "expired-b", DateTimeOffset.UtcNow.AddDays(-8), retentionDays: 7);
+        sandbox.OverrideSavedTimestamp("DesktopWhiteboard", "fresh-c", DateTimeOffset.UtcNow.AddDays(-2), retentionDays: 15);
+
+        var deletedCount = service.DeleteExpiredNotesBatch(batchSize: 10);
+
+        Assert.Equal(2, deletedCount);
+        Assert.False(sandbox.Exists("DesktopWhiteboard", "expired-a"));
+        Assert.False(sandbox.Exists("DesktopWhiteboard", "expired-b"));
+        Assert.True(sandbox.Exists("DesktopWhiteboard", "fresh-c"));
+    }
+
+    private static WhiteboardNoteSnapshot CreateSampleSnapshot()
+    {
+        return new WhiteboardNoteSnapshot
+        {
+            Strokes =
+            [
+                new WhiteboardStrokeSnapshot
+                {
+                    Color = "#FF112233",
+                    InkThickness = 3.5d,
+                    IgnorePressure = true,
+                    Points =
+                    [
+                        new WhiteboardStylusPointSnapshot { X = 12, Y = 34, Pressure = 0.4d, Width = 2, Height = 2 },
+                        new WhiteboardStylusPointSnapshot { X = 48, Y = 64, Pressure = 0.7d, Width = 2, Height = 2 }
+                    ]
+                }
+            ]
+        };
+    }
+
+    private sealed class WhiteboardNotePersistenceSandbox : IDisposable
+    {
+        private readonly string _directoryPath = Path.Combine(
+            Path.GetTempPath(),
+            "LanMountainDesktop.WhiteboardNoteTests",
+            Guid.NewGuid().ToString("N"));
+
+        private readonly string _databasePath;
+
+        public WhiteboardNotePersistenceSandbox()
+        {
+            Directory.CreateDirectory(_directoryPath);
+            _databasePath = Path.Combine(_directoryPath, "whiteboard-tests.db");
+        }
+
+        public WhiteboardNotePersistenceService CreateService()
+        {
+            return new WhiteboardNotePersistenceService(new AppDatabaseService(_databasePath));
+        }
+
+        public void OverrideSavedTimestamp(string componentId, string placementId, DateTimeOffset savedUtc, int retentionDays)
+        {
+            var expiresUtc = savedUtc.AddDays(WhiteboardNoteRetentionPolicy.NormalizeDays(retentionDays));
+            using var connection = new AppDatabaseService(_databasePath).OpenConnection();
+            using var command = connection.CreateCommand();
+            command.CommandText = """
+                UPDATE whiteboard_notes
+                SET saved_at_utc_ms = $savedAtUtcMs,
+                    expires_at_utc_ms = $expiresAtUtcMs,
+                    updated_at_utc_ms = $updatedAtUtcMs
+                WHERE component_id = $componentId
+                  AND placement_id = $placementId;
+                """;
+            command.Parameters.AddWithValue("$savedAtUtcMs", savedUtc.ToUnixTimeMilliseconds());
+            command.Parameters.AddWithValue("$expiresAtUtcMs", expiresUtc.ToUnixTimeMilliseconds());
+            command.Parameters.AddWithValue("$updatedAtUtcMs", DateTimeOffset.UtcNow.ToUnixTimeMilliseconds());
+            command.Parameters.AddWithValue("$componentId", componentId);
+            command.Parameters.AddWithValue("$placementId", placementId);
+            command.ExecuteNonQuery();
+        }
+
+        public bool Exists(string componentId, string placementId)
+        {
+            using var connection = new AppDatabaseService(_databasePath).OpenConnection();
+            using var command = connection.CreateCommand();
+            command.CommandText = """
+                SELECT COUNT(1)
+                FROM whiteboard_notes
+                WHERE component_id = $componentId
+                  AND placement_id = $placementId;
+                """;
+            command.Parameters.AddWithValue("$componentId", componentId);
+            command.Parameters.AddWithValue("$placementId", placementId);
+            return Convert.ToInt32(command.ExecuteScalar()) > 0;
+        }
+
+        public void Dispose()
+        {
+            try
+            {
+                if (Directory.Exists(_directoryPath))
+                {
+                    Directory.Delete(_directoryPath, true);
+                }
+            }
+            catch
+            {
+                // Temporary test directories are best-effort cleanup.
+            }
+        }
+    }
+}

LanMountainDesktop.slnx

@@ -1,6 +1,12 @@
 <Solution>
-  <Project Path="LanAirApp/tools/LanMountainDesktop.PluginPackager/LanMountainDesktop.PluginPackager.csproj" />
+  <Project Path="LanMountainDesktop.Host.Abstractions/LanMountainDesktop.Host.Abstractions.csproj" />
+  <Project Path="LanMountainDesktop.Shared.Contracts/LanMountainDesktop.Shared.Contracts.csproj" />
+  <Project Path="LanMountainDesktop.Settings.Core/LanMountainDesktop.Settings.Core.csproj" />
+  <Project Path="LanMountainDesktop.Appearance/LanMountainDesktop.Appearance.csproj" />
+  <Project Path="LanMountainDesktop.DesktopComponents.Runtime/LanMountainDesktop.DesktopComponents.Runtime.csproj" />
+  <Project Path="LanMountainDesktop.DesktopHost/LanMountainDesktop.DesktopHost.csproj" />
   <Project Path="LanMountainDesktop.PluginSdk/LanMountainDesktop.PluginSdk.csproj" />
+  <Project Path="LanMountainDesktop.PluginTemplate/LanMountainDesktop.PluginTemplate.csproj" />
   <Project Path="LanMountainDesktop.PluginsInstallHelper/LanMountainDesktop.PluginsInstallHelper.csproj" />
   <Project Path="LanMountainDesktop/LanMountainDesktop.csproj" />
   <Project Path="LanMountainDesktop.Tests/LanMountainDesktop.Tests.csproj" />

LanMountainDesktop/App.axaml

@@ -71,4 +71,5 @@
             <Setter Property="VerticalAlignment" Value="Center" />
         </Style>
     </Application.Styles>
+
 </Application>

LanMountainDesktop/App.axaml.cs

@@ -15,6 +15,7 @@ using Avalonia.Styling;
 using Avalonia.Threading;
 using AvaloniaWebView;
 using LanMountainDesktop.ComponentSystem;
+using LanMountainDesktop.DesktopHost;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.PluginSdk;
 using LanMountainDesktop.Services;
@@ -56,14 +57,19 @@ public partial class App : Application
     private DesktopShellState _desktopShellState = DesktopShellState.ForegroundDesktop;
     private ShutdownIntent _shutdownIntent;
 
-    private TrayIcons? _trayIcons;
+    private TrayIcon? _trayIcon;
+    private NativeMenuItem? _trayShowDesktopMenuItem;
+    private NativeMenuItem? _traySettingsMenuItem;
+    private NativeMenuItem? _trayComponentLibraryMenuItem;
+    private NativeMenuItem? _trayRestartMenuItem;
+    private NativeMenuItem? _trayExitMenuItem;
     private PluginRuntimeService? _pluginRuntimeService;
     private MainWindow? _mainWindow;
     private bool _mainWindowClosed;
     private bool _uiUnhandledExceptionHooked;
+    private DesktopShellHost? _desktopShellHost;
 
     internal static SingleInstanceService? CurrentSingleInstanceService { get; set; }
-    internal static (UserBehaviorAnalyticsService?, CrashReportService?) AnalyticsServices { get; set; }
     internal static IHostApplicationLifecycle? CurrentHostApplicationLifecycle =>
         (Current as App)?._hostApplicationLifecycle;
 
@@ -116,28 +122,32 @@ public partial class App : Application
         AppLogger.Info("App", "Framework initialization completed.");
         RegisterUiUnhandledExceptionGuard();
         LinuxDesktopEntryInstaller.EnsureInstalled();
-        InitializePluginRuntime();
+        DesktopBootstrap.InitializeApplication(this, InitializeDesktopShell);
-        InitializeTrayIcon();
 
-        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        base.OnFrameworkInitializationCompleted();
-        {
+    }
-            // Avoid duplicate validations from both Avalonia and the CommunityToolkit.
+
-            // More info: https://docs.avaloniaui.net/docs/guides/development-guides/data-validation#manage-validationplugins
+    private void InitializeDesktopShell()
-            DisableAvaloniaDataAnnotationValidation();
+    {
-            desktop.ShutdownMode = Avalonia.Controls.ShutdownMode.OnExplicitShutdown;
+        _desktopShellHost ??= new DesktopShellHost(
-            desktop.Exit += (_, _) =>
+            InitializePluginRuntime,
+            InitializeTrayIcon,
+            desktop =>
+            {
+                // Avoid duplicate validations from both Avalonia and the CommunityToolkit.
+                // More info: https://docs.avaloniaui.net/docs/guides/development-guides/data-validation#manage-validationplugins
+                DisableAvaloniaDataAnnotationValidation();
+                desktop.ShutdownMode = Avalonia.Controls.ShutdownMode.OnExplicitShutdown;
+                CreateAndAssignMainWindow(desktop, "FrameworkInitialization");
+            },
+            () =>
             {
                 AppLogger.Info("App", "Desktop lifetime exit triggered.");
                 PerformExitCleanup();
-            };
+            },
-
+            () => CurrentSingleInstanceService?.StartActivationListener(ActivateMainWindow),
-            CreateAndAssignMainWindow(desktop, "FrameworkInitialization");
+            StartWeatherLocationRefreshIfNeeded);
-            CurrentSingleInstanceService?.StartActivationListener(ActivateMainWindow);
+        _desktopShellHost.Initialize(this);
-        }
-
-        StartWeatherLocationRefreshIfNeeded();
-
-        base.OnFrameworkInitializationCompleted();
     }
 
     private void OnTrayExitClick(object? sender, EventArgs e)
@@ -238,18 +248,43 @@ public partial class App : Application
     {
         try
         {
-            DisposeTrayIcon();
+            if (_trayIcon is null)
-
-            var trayIcon = new TrayIcon
             {
-                Icon = _appLogoService.CreateTrayIcon(),
+                _trayShowDesktopMenuItem = new NativeMenuItem();
-                ToolTipText = L("tray.tooltip", "LanMountainDesktop"),
+                _trayShowDesktopMenuItem.Click += OnTrayShowDesktopClick;
-                Menu = BuildTrayMenu(),
-                IsVisible = true
-            };
 
-            _trayIcons = [trayIcon];
+                _traySettingsMenuItem = new NativeMenuItem();
-            TrayIcon.SetIcons(this, _trayIcons);
+                _traySettingsMenuItem.Click += OnTraySettingsClick;
+
+                _trayComponentLibraryMenuItem = new NativeMenuItem();
+                _trayComponentLibraryMenuItem.Click += OnTrayComponentLibraryClick;
+
+                _trayRestartMenuItem = new NativeMenuItem();
+                _trayRestartMenuItem.Click += OnTrayRestartClick;
+
+                _trayExitMenuItem = new NativeMenuItem();
+                _trayExitMenuItem.Click += OnTrayExitClick;
+
+                var trayMenu = new NativeMenu();
+                trayMenu.Items.Add(_trayShowDesktopMenuItem);
+                trayMenu.Items.Add(_traySettingsMenuItem);
+                trayMenu.Items.Add(_trayComponentLibraryMenuItem);
+                trayMenu.Items.Add(new NativeMenuItemSeparator());
+                trayMenu.Items.Add(_trayRestartMenuItem);
+                trayMenu.Items.Add(new NativeMenuItemSeparator());
+                trayMenu.Items.Add(_trayExitMenuItem);
+
+                _trayIcon = new TrayIcon
+                {
+                    Icon = _appLogoService.CreateTrayIcon(),
+                    Menu = trayMenu,
+                    IsVisible = true
+                };
+
+                TrayIcon.SetIcons(this, [_trayIcon]);
+            }
+
+            RefreshTrayIconContent();
         }
         catch (Exception ex)
         {
@@ -257,51 +292,58 @@ public partial class App : Application
         }
     }
 
-    private NativeMenu BuildTrayMenu()
+    private void RefreshTrayIconContent()
     {
-        var menu = new NativeMenu();
+        if (_trayIcon is not null)
+        {
+            _trayIcon.IsVisible = true;
+            if (!OperatingSystem.IsLinux())
+            {
+                _trayIcon.ToolTipText = L("tray.tooltip", "LanMountainDesktop");
+            }
+        }
 
-        var showDesktopItem = new NativeMenuItem(L("tray.menu.show_desktop", "Open Desktop"));
+        if (_trayShowDesktopMenuItem is not null)
-        showDesktopItem.Click += OnTrayShowDesktopClick;
+        {
-        menu.Items.Add(showDesktopItem);
+            _trayShowDesktopMenuItem.Header = L("tray.menu.show_desktop", "Open Desktop");
+        }
 
-        var settingsItem = new NativeMenuItem(L("tray.menu.settings", "Settings"));
+        if (_traySettingsMenuItem is not null)
-        settingsItem.Click += OnTraySettingsClick;
+        {
-        menu.Items.Add(settingsItem);
+            _traySettingsMenuItem.Header = L("tray.menu.settings", "Settings");
+        }
 
-        var componentLibraryItem = new NativeMenuItem(L("tray.menu.component_library", "Component Library"));
+        if (_trayComponentLibraryMenuItem is not null)
-        componentLibraryItem.Click += OnTrayComponentLibraryClick;
+        {
-        menu.Items.Add(componentLibraryItem);
+            _trayComponentLibraryMenuItem.Header = L("tray.menu.component_library", "Component Library");
+        }
 
-        menu.Items.Add(new NativeMenuItemSeparator());
+        if (_trayRestartMenuItem is not null)
+        {
+            _trayRestartMenuItem.Header = L("tray.menu.restart", "Restart App");
+        }
 
-        var restartItem = new NativeMenuItem(L("tray.menu.restart", "Restart App"));
+        if (_trayExitMenuItem is not null)
-        restartItem.Click += OnTrayRestartClick;
+        {
-        menu.Items.Add(restartItem);
+            _trayExitMenuItem.Header = L("tray.menu.exit", "Exit App");
-
+        }
-        menu.Items.Add(new NativeMenuItemSeparator());
-
-        var exitItem = new NativeMenuItem(L("tray.menu.exit", "Exit App"));
-        exitItem.Click += OnTrayExitClick;
-        menu.Items.Add(exitItem);
-
-        return menu;
     }
 
     private void DisposeTrayIcon()
     {
-        if (_trayIcons is null)
+        if (_trayIcon is null)
         {
             return;
         }
 
-        TrayIcon.SetIcons(this, null);
+        try
-        foreach (var trayIcon in _trayIcons)
         {
-            trayIcon.Dispose();
+            _trayIcon.IsVisible = false;
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("TrayIcon", "Failed to hide tray icon during cleanup.", ex);
         }
-
-        _trayIcons = null;
     }
 
     private void EnsureSettingsWindowService()
@@ -493,6 +535,7 @@ public partial class App : Application
                 refreshAll ||
                 changedKeys.Contains(nameof(AppSettingsSnapshot.IsNightMode), StringComparer.OrdinalIgnoreCase) ||
                 changedKeys.Contains(nameof(AppSettingsSnapshot.UseSystemChrome), StringComparer.OrdinalIgnoreCase) ||
+                changedKeys.Contains(nameof(AppSettingsSnapshot.GlobalCornerRadiusScale), StringComparer.OrdinalIgnoreCase) ||
                 (string.Equals(liveAppearance.ThemeColorMode, ThemeAppearanceValues.ColorModeSeedMonet, StringComparison.OrdinalIgnoreCase) &&
                  changedKeys.Contains(nameof(AppSettingsSnapshot.ThemeColor), StringComparer.OrdinalIgnoreCase)) ||
                 (string.Equals(liveAppearance.ThemeColorMode, ThemeAppearanceValues.ColorModeWallpaperMonet, StringComparison.OrdinalIgnoreCase) &&
@@ -513,10 +556,7 @@ public partial class App : Application
                 // 清除本地化缓存，强制重新加载语言文件
                 _localizationService.ClearCache();
                 ApplyCurrentCultureFromSettings();
-                if (_trayIcons is not null)
+                RefreshTrayIconContent();
-                {
-                    InitializeTrayIcon();
-                }
             }
         }, DispatcherPriority.Background);
     }
@@ -584,13 +624,13 @@ public partial class App : Application
 
         try
         {
-            var (analytics, crashReport) = App.AnalyticsServices;
+            TelemetryServices.Usage?.Shutdown(
-            analytics?.SendShutdownEvent();
+                _shutdownIntent == ShutdownIntent.RestartRequested,
-            crashReport?.SendShutdownEvent();
+                "App.PerformExitCleanup");
         }
         catch (Exception ex)
         {
-            AppLogger.Warn("Analytics", "Failed to send shutdown events during exit cleanup.", ex);
+            AppLogger.Warn("Analytics", "Failed to shut down usage telemetry during exit cleanup.", ex);
         }
 
         try
@@ -624,6 +664,27 @@ public partial class App : Application
         AudioRecorderServiceFactory.DisposeSharedServices();
         StudyAnalyticsServiceFactory.DisposeSharedService();
         DisposeTrayIcon();
+
+        try
+        {
+            TelemetryServices.Crash?.CaptureShutdown(
+                _shutdownIntent == ShutdownIntent.RestartRequested,
+                "App.PerformExitCleanup");
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("Analytics", "Failed to capture crash shutdown telemetry during exit cleanup.", ex);
+        }
+
+        try
+        {
+            TelemetryServices.Crash?.Dispose();
+            TelemetryServices.Usage?.Dispose();
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("Analytics", "Failed to dispose telemetry services during exit cleanup.", ex);
+        }
     }
 
     private MainWindow CreateAndAssignMainWindow(

LanMountainDesktop/Assets/Documents/Privacy.md

@@ -1,326 +1,54 @@
-# LanMountainDesktop 隐私政策
+# 隐私与遥测说明
 
-**最后更新日期：2026年3月17日**
+LanMountainDesktop 提供两类可选遥测能力：
 
----
+- 崩溃数据上传
+- 行为数据分析
 
-## 引言
+这两个开关默认关闭。即使两项都关闭，应用仍会在首次启动时向 PostHog 发送一次最小化的启动基线事件，用于统计用户量。
 
-欢迎使用 LanMountainDesktop！我们非常重视您的隐私保护。本隐私政策旨在向您说明我们如何收集、使用、存储和保护您的数据。
+## 默认行为
 
-**请在使用本应用前仔细阅读本隐私政策。使用本应用即表示您同意本政策的条款。**
+当“崩溃数据上传”和“行为数据分析”都关闭时：
 
----
+- 仅首次启动会发送一次 `app_first_launch` 事件
+- 该事件只用于统计用户量
+- 事件时间由 PostHog 接入侧记录的请求时间和启动时间决定
+- 不会主动上传设备型号、操作系统细节、组件操作轨迹等详细信息
 
-## 1. 数据收集范围
+## 崩溃数据上传
 
-### 1.1 我们收集的数据
+当开启“崩溃数据上传”时，应用会把崩溃与未处理异常发送到 Sentry，用于分析稳定性问题。
 
-当您启用匿名数据收集功能时，我们会收集以下数据：
+上报内容可能包括：
 
-#### 匿名崩溃数据
+- 异常堆栈和错误上下文
-- **崩溃报告**：应用崩溃时的错误日志和堆栈跟踪
+- 应用版本与运行环境
-- **设备信息**：操作系统版本、设备型号、架构（x64/x86）
+- 操作系统信息
-- **应用版本**：当前使用的应用版本号
+- 设备基础信息
-- **设备标识符**：匿名生成的唯一设备ID（不包含个人信息）
+- 最近的日志尾部内容
 
-#### 匿名使用数据
+应用退出或崩溃时，会尽量补充最后一次会话和日志信息，方便定位问题。
-- **应用启动和关闭事件**：记录应用何时启动和关闭
-- **功能使用统计**：哪些功能被使用、使用频率
-- **设置变更**：用户更改了哪些设置（不包含具体设置值）
-- **界面交互**：点击了哪些按钮、访问了哪些页面
-- **设备信息**：操作系统、应用版本、设备类型
 
-### 1.2 始终收集的基础数据
+## 行为数据分析
 
-**重要说明：** 为了统计应用的用户数量和日活跃用户，即使您关闭了匿名数据收集开关，我们仍会收集以下基础数据：
+当开启“行为数据分析”时，应用会把关键行为事件发送到 PostHog，用于分析功能使用情况和会话路径。
 
-- ✅ **应用启动事件**：用于统计日活跃用户
+上报内容可能包括：
-- ✅ **设备标识符**：用于区分不同用户（不包含个人信息）
-- ✅ **应用版本**：用于统计版本分布
 
-**这些基础数据不包含任何个人身份信息，仅用于统计用户数量和应用使用情况。**
+- 应用启动和退出时间
+- 会话开始与结束时间
+- 设置页打开、关闭和导航
+- 抽屉打开和关闭
+- 桌面组件的放置、移动、缩放、删除和编辑入口
 
-### 1.3 我们不收集的数据
+这些事件会被转换成 PostHog 可以直接接收和分析的事件格式，方便在 PostHog 中按事件流查看用户行为。桌面端的“回放”能力通过事件时间线重建，而不是浏览器式 Session Replay。
 
-我们**明确承诺不收集**以下数据：
+## 身份与隐私控制
 
-- ❌ 个人身份信息（姓名、邮箱、电话等）
+应用会使用随机生成的匿名 install ID 和可刷新 telemetry ID 来区分安装与运行会话。
-- ❌ 真实姓名或用户名
-- ❌ 地理位置信息（精确位置）
-- ❌ 文件内容或文档数据
-- ❌ 密码或凭据信息
-- ❌ 网络浏览历史
-- ❌ 联系人信息
-- ❌ 照片、视频或音频文件
 
----
+- 刷新 telemetry ID 只会影响后续详细遥测
+- 关闭开关后，不会继续发送对应类别的详细遥测
+- IP 只会通过 Sentry / PostHog 的服务端接入侧自然记录，不会作为自定义字段重复上报
 
-## 2. 数据收集目的
-
-我们收集数据的目的如下：
-
-### 2.1 基础数据用途（始终收集）
-- **统计用户数量**：了解应用的用户规模
-- **统计日活跃用户**：了解应用的活跃程度
-- **版本分布统计**：了解用户使用的版本情况
-
-### 2.2 崩溃数据用途
-- **提高应用稳定性**：识别和修复崩溃问题
-- **优化性能**：分析性能瓶颈
-- **改进用户体验**：了解应用在不同设备上的表现
-
-### 2.3 使用数据用途
-- **功能优化**：了解哪些功能最受欢迎，优先改进
-- **用户体验改进**：优化界面设计和交互流程
-- **统计分析**：了解用户规模和使用趋势
-- **产品决策**：基于数据做出产品发展方向决策
-
----
-
-## 3. 数据存储和处理
-
-### 3.1 数据存储位置
-
-我们使用以下第三方服务存储和处理数据：
-
-#### Sentry（崩溃报告）
-- **用途**：崩溃数据收集和分析
-- **位置**：美国
-- **官网**：https://sentry.io
-- **隐私政策**：https://sentry.io/privacy/
-
-#### PostHog（使用分析）
-- **用途**：用户行为分析和统计
-- **位置**：美国
-- **官网**：https://posthog.com
-- **隐私政策**：https://posthog.com/privacy
-
-### 3.2 数据保留期限
-
-- **崩溃数据**：保留90天后自动删除
-- **使用数据**：保留12个月后自动删除
-- **设备标识符**：永久保留（用于统计日活用户）
-
-### 3.3 数据安全措施
-
-我们采取以下安全措施保护您的数据：
-
-- ✅ 数据传输使用HTTPS加密
-- ✅ 数据存储使用加密技术
-- ✅ 访问权限严格控制
-- ✅ 定期安全审计
-
----
-
-## 4. 数据共享
-
-### 4.1 我们不会出售您的数据
-
-我们**明确承诺**：
-- ❌ 不会出售您的个人数据
-- ❌ 不会将您的数据用于广告目的
-- ❌ 不会与第三方共享可识别个人的数据
-
-### 4.2 必要的共享
-
-我们仅在以下情况下共享数据：
-
-- **服务提供商**：与Sentry和PostHog共享数据以提供服务
-- **法律要求**：在法律要求或政府机构合法要求时
-
----
-
-## 5. 您的权利
-
-### 5.1 选择权
-
-您完全控制详细数据收集：
-
-- **匿名崩溃数据**：可在设置中开启或关闭
-- **匿名使用数据**：可在设置中开启或关闭
-- **基础数据**：始终收集（用于统计用户数量）
-
-**注意：** 即使关闭所有开关，我们仍会收集基础数据（应用启动事件和设备标识符）以统计用户数量。
-
-### 5.2 数据访问权
-
-您可以：
-- 查看我们收集的数据类型
-- 了解数据的使用目的
-- 了解数据的存储位置
-
-### 5.3 数据删除权
-
-您可以：
-- 随时关闭详细数据收集功能
-- 删除本地存储的设备标识符
-- 联系我们删除已收集的数据
-
----
-
-## 6. 设备标识符
-
-### 6.1 什么是设备标识符？
-
-设备标识符是一个随机生成的唯一字符串，用于：
-- 统计日活用户数量
-- 区分不同设备
-- 分析用户使用趋势
-
-### 6.2 设备标识符的特点
-
-- **匿名性**：不包含任何个人信息
-- **随机性**：通过SHA256算法生成
-- **唯一性**：每个设备有唯一标识符
-- **持久性**：即使刷新设备ID，仍能关联到同一用户
-- **可重置**：您可以在设置中刷新设备标识符
-
-### 6.3 设备标识符刷新
-
-当您刷新设备标识符时：
-- 生成新的设备ID
-- **持久用户ID保持不变**，确保仍能关联到同一用户
-- 统计数据不会丢失
-
-### 6.4 设备标识符示例
-
-```
-a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6
-```
-
----
-
-## 7. 儿童隐私保护
-
-本应用不面向13岁以下儿童。我们不会故意收集儿童的个人信息。如果您发现我们无意中收集了儿童的数据，请联系我们，我们将立即删除相关数据。
-
----
-
-## 8. 国际数据传输
-
-由于我们的服务提供商位于美国，您的数据可能会被传输到美国。我们确保：
-
-- 数据传输符合相关法律法规
-- 服务提供商遵守GDPR等隐私法规
-- 采取适当的安全措施保护数据
-
----
-
-## 9. 隐私政策更新
-
-我们可能会不时更新本隐私政策。更新时，我们将：
-
-- 在本页面更新"最后更新日期"
-- 在应用内通知您重大变更
-- 继续使用应用即表示您同意更新后的政策
-
----
-
-## 10. 联系我们
-
-如果您对本隐私政策有任何疑问或建议，请通过以下方式联系我们：
-
-- **GitHub Issues**：https://github.com/wwiinnddyy/LanMountainDesktop/issues
-- **电子邮件**：[您的邮箱地址]
-
----
-
-## 11. 法律依据
-
-### 11.1 GDPR合规
-
-如果您位于欧洲经济区（EEA），我们的数据处理基于：
-
-- **同意**：您明确同意数据收集
-- **合法利益**：改进应用性能和用户体验
-
-### 11.2 CCPA合规
-
-如果您是加州居民，您有权：
-
-- 知道我们收集了哪些数据
-- 要求删除您的数据
-- 选择退出数据销售（我们不销售数据）
-
----
-
-## 12. 第三方链接
-
-本应用可能包含第三方网站链接。我们不对这些网站的隐私政策负责。请阅读这些网站的隐私政策。
-
----
-
-## 13. 数据收集示例
-
-### 13.1 崩溃报告示例
-
-```json
-{
-  "event_id": "abc123",
-  "timestamp": "2024-01-01T12:00:00Z",
-  "device_id": "a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6",
-  "app_version": "1.0.0",
-  "os_name": "Windows",
-  "os_version": "10.0.19041",
-  "error_message": "NullReferenceException",
-  "stack_trace": "..."
-}
-```
-
-### 13.2 使用数据示例
-
-```json
-{
-  "event": "app_online",
-  "timestamp": "2024-01-01T12:00:00Z",
-  "distinct_id": "a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6",
-  "properties": {
-    "app_version": "1.0.0",
-    "os_name": "Windows",
-    "event_type": "app_start",
-    "analytics_enabled": true
-  }
-}
-```
-
-### 13.3 基础数据示例（始终收集）
-
-```json
-{
-  "event": "$pageview",
-  "timestamp": "2024-01-01T12:00:00Z",
-  "distinct_id": "a1b2c3d4e5f6g7h8i9j0k1l2m3n4o5p6",
-  "properties": {
-    "$current_url": "app://main",
-    "$title": "LanMountainDesktop"
-  }
-}
-```
-
----
-
-## 14. 您的同意
-
-使用本应用即表示您：
-
-- ✅ 已阅读并理解本隐私政策
-- ✅ 同意我们按照本政策收集和使用数据
-- ✅ 了解您可以随时撤回同意（详细数据收集）
-- ✅ 了解基础数据将始终收集以统计用户数量
-
----
-
-## 15. 免责声明
-
-本隐私政策仅适用于 LanMountainDesktop 应用。我们不对以下情况负责：
-
-- 第三方服务的隐私政策
-- 您自行分享的数据
-- 不可抗力导致的数据泄露
-
----
-
-**感谢您信任阑山桌面LanMountainDesktop！**
-
-我们承诺保护您的隐私，并持续改进我们的隐私保护措施。

LanMountainDesktop/ComponentSystem/BuiltInComponentIds.cs

@@ -41,4 +41,5 @@ public static class BuiltInComponentIds
     public const string DesktopBlackboardLandscape = "DesktopBlackboardLandscape";
     public const string DesktopBrowser = "DesktopBrowser";
     public const string DesktopOfficeRecentDocuments = "DesktopOfficeRecentDocuments";
+    public const string DesktopRemovableStorage = "DesktopRemovableStorage";
 }

LanMountainDesktop/ComponentSystem/ComponentRegistry.cs

@@ -336,6 +336,15 @@ public sealed class ComponentRegistry
                 MinHeightCells: 2,
                 AllowStatusBarPlacement: false,
                 AllowDesktopPlacement: true),
+            new DesktopComponentDefinition(
+                BuiltInComponentIds.DesktopRemovableStorage,
+                "Removable Storage",
+                "Storage",
+                "File",
+                MinWidthCells: 2,
+                MinHeightCells: 2,
+                AllowStatusBarPlacement: false,
+                AllowDesktopPlacement: true),
             new DesktopComponentDefinition(
                 BuiltInComponentIds.Date,
                 "Calendar",

LanMountainDesktop/ComponentSystem/DesktopComponentRuntimeContext.cs

@@ -1,3 +1,4 @@
+using LanMountainDesktop.Host.Abstractions;
 using LanMountainDesktop.PluginSdk;
 using LanMountainDesktop.Services;
 using LanMountainDesktop.Services.Settings;
@@ -10,5 +11,6 @@ public sealed record DesktopComponentRuntimeContext(
     ISettingsFacadeService SettingsFacade,
     ISettingsService SettingsService,
     IAppearanceThemeService AppearanceTheme,
+    ComponentChromeContext Chrome,
     IComponentSettingsAccessor ComponentSettingsAccessor,
     IComponentInstanceSettingsStore ComponentSettingsStore);

LanMountainDesktop/ComponentSystem/IComponentChromeContextAware.cs

@@ -0,0 +1,8 @@
+using LanMountainDesktop.Host.Abstractions;
+
+namespace LanMountainDesktop.ComponentSystem;
+
+public interface IComponentChromeContextAware
+{
+    void SetComponentChromeContext(ComponentChromeContext context);
+}

LanMountainDesktop/LanMountainDesktop.csproj

@@ -29,6 +29,12 @@
   </ItemGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\LanMountainDesktop.Host.Abstractions\LanMountainDesktop.Host.Abstractions.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Shared.Contracts\LanMountainDesktop.Shared.Contracts.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Settings.Core\LanMountainDesktop.Settings.Core.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.Appearance\LanMountainDesktop.Appearance.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.DesktopComponents.Runtime\LanMountainDesktop.DesktopComponents.Runtime.csproj" />
+    <ProjectReference Include="..\LanMountainDesktop.DesktopHost\LanMountainDesktop.DesktopHost.csproj" />
     <ProjectReference Include="..\LanMountainDesktop.PluginSdk\LanMountainDesktop.PluginSdk.csproj" />
     <ProjectReference Include="..\LanMountainDesktop.PluginsInstallHelper\LanMountainDesktop.PluginsInstallHelper.csproj" ReferenceOutputAssembly="false" />
   </ItemGroup>
@@ -55,6 +61,10 @@
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="10.0.0" />
     <PackageReference Include="Microsoft.Data.Sqlite" Version="10.0.0" />
+    <PackageReference Include="MudTools.OfficeInterop" Version="2.0.8" />
+    <PackageReference Include="MudTools.OfficeInterop.Word" Version="2.0.8" />
+    <PackageReference Include="MudTools.OfficeInterop.Excel" Version="2.0.8" />
+    <PackageReference Include="MudTools.OfficeInterop.PowerPoint" Version="2.0.8" />
 
     <PackageReference Include="PortAudioSharp2" Version="1.0.6" />
     <PackageReference Include="MaterialColorUtilities" Version="0.3.0" />

LanMountainDesktop/Localization/en-US.json

@@ -7,7 +7,12 @@
     "tray.menu.restart":  "Restart App",
     "tray.menu.exit":  "Exit App",
     "button.back_to_windows":  "Back to Windows",
+    "button.back_to_platform": "Back to {0}",
     "tooltip.back_to_windows":  "Back to Windows",
+    "tooltip.back_to_platform": "Back to {0}",
+    "platform.windows": "Windows",
+    "platform.linux": "Linux",
+    "platform.macos": "macOS",
     "tooltip.open_settings":  "Settings",
     "settings.title":  "Settings",
     "settings.shell.title":  "Settings",
@@ -20,7 +25,7 @@
     "settings.nav.group_system":  "System",
     "settings.nav.group_extensions":  "Extensions",
     "settings.nav.wallpaper":  "Wallpaper",
-    "settings.nav.grid":  "Grid",
+    "settings.nav.grid":  "Components",
     "settings.nav.color":  "Color",
     "settings.nav.status_bar":  "Status Bar",
     "settings.nav.weather":  "Weather",
@@ -86,6 +91,8 @@
     "settings.status_bar.description":  "Choose which components appear on the top status bar.",
     "settings.status_bar.clock_header":  "Clock Component",
     "settings.status_bar.clock_description":  "Display a clock on the top status bar.",
+    "settings.status_bar.clock_transparent_background_label":  "Transparent background",
+    "settings.status_bar.clock_transparent_background_desc":  "Remove the capsule background and keep only the clock text.",
     "settings.status_bar.spacing_header":  "Component Spacing",
     "settings.status_bar.spacing_desc":  "Adjust spacing between status bar components.",
     "settings.status_bar.spacing_mode_compact":  "Compact",
@@ -296,8 +303,17 @@
     "settings.status_bar.clock_format.hm":  "Hour:Minute",
     "settings.status_bar.clock_format.hms":  "Hour:Minute:Second",
     "settings.components.title":  "Components",
-    "settings.components.description":  "Adjust desktop grid density and widget placement.",
+    "settings.components.description":  "Adjust component layout and corner design.",
-    "settings.components.grid_header":  "Grid Layout",
+    "settings.components.grid_header":  "Grid Settings",
+    "settings.components.header":  "Grid Settings",
+    "settings.components.short_side_label":  "Short Side Cells",
+    "settings.components.edge_inset_label":  "Screen Inset",
+    "settings.components.spacing_label":  "Component Spacing",
+    "settings.components.spacing_compact":  "Compact",
+    "settings.components.spacing_relaxed":  "Relaxed",
+    "settings.components.corner_radius.header":  "Corner Design",
+    "settings.components.corner_radius.label":  "Component Corner Radius",
+    "settings.components.corner_radius.description":  "Adjust the shared corner radius from a square edge to a capsule-like shape, and expand the internal safe area with it.",
     "settings.update.title":  "Update",
     "settings.update.current_version_label":  "Current Version",
     "settings.update.latest_version_label":  "Latest Release",
@@ -403,6 +419,7 @@
     "common.monet":  "Monet",
     "desktop.page_index_format":  "Desktop {0}",
     "launcher.title":  "App Launcher",
+    "launcher.folder": "Folder",
     "launcher.subtitle":  "Apps and folders from Windows Start Menu",
     "launcher.subtitle_linux":  "Installed apps discovered from Linux desktop entries",
     "launcher.empty":  "No Start Menu entries found.",
@@ -588,6 +605,19 @@
     "component.blackboard_landscape":  "Blackboard (Landscape)",
     "component.browser":  "Browser",
     "component.office_recent_documents":  "Recent Documents",
+    "whiteboard.settings.desc": "Each blackboard keeps its own note history and saves it independently.",
+    "whiteboard.settings.retention.title": "Note retention",
+    "whiteboard.settings.retention.desc": "Choose how long this blackboard should keep saved notes before expired data is removed automatically.",
+    "whiteboard.settings.retention.option": "{0} days",
+    "whiteboard.settings.instance_scope": "This retention setting is stored per blackboard component instance.",
+    "office_recent_documents.settings.desc":  "Choose which Windows and Office sources this widget should scan for recent documents.",
+    "office_recent_documents.settings.sources_title":  "Recent document sources",
+    "office_recent_documents.settings.sources_desc":  "You can combine multiple sources. Registry selection also keeps the Office interop MRU fallback available.",
+    "office_recent_documents.settings.source.registry":  "Office registry MRU",
+    "office_recent_documents.settings.source.recent_folders":  "Windows Recent folders",
+    "office_recent_documents.settings.source.jump_lists":  "Windows Jump Lists",
+    "office_recent_documents.settings.hint":  "If you disable all sources, this widget will stay empty until at least one source is enabled again.",
+    "component.removable_storage":  "Removable Storage",
     "component.holiday_calendar":  "Holiday Calendar",
     "component.study_environment":  "Environment",
     "component.study_session_control":  "Study Session Control",
@@ -789,6 +819,20 @@
     "study.environment.settings.show_display_db":  "Show display dB",
     "study.environment.settings.show_dbfs":  "Show dBFS",
     "study.environment.settings.hint":  "At least one display mode must stay enabled.",
+    "removable_storage.settings.desc":  "Show a connected USB drive with quick open and eject actions.",
+    "removable_storage.settings.behavior_title":  "Behavior",
+    "removable_storage.settings.behavior_desc":  "The widget automatically watches for removable drives and switches to the newest inserted USB drive.",
+    "removable_storage.action.open":  "Open",
+    "removable_storage.action.eject":  "Eject",
+    "removable_storage.widget.default_name":  "Removable Drive",
+    "removable_storage.widget.empty_title":  "No device inserted",
+    "removable_storage.widget.empty_subtitle":  "Insert a USB drive to show it here.",
+    "removable_storage.widget.empty_hint":  "Buttons stay disabled until a removable device is inserted.",
+    "removable_storage.widget.ready":  "Ready to open or eject.",
+    "removable_storage.widget.ejecting":  "Ejecting drive...",
+    "removable_storage.widget.eject_failed":  "Could not eject this drive. Close any files on it and try again.",
+    "removable_storage.widget.open_failed":  "Failed to open this drive.",
+    "removable_storage.widget.refresh_failed":  "Drive list refresh failed.",
     "study.session_control.action.start":  "Start Study Session",
     "study.session_control.action.stop":  "Stop Study Session",
     "study.session_control.idle_hint":  "Tap the right button to start",

LanMountainDesktop/Localization/zh-CN.json

@@ -7,7 +7,12 @@
     "tray.menu.restart":  "重启应用",
     "tray.menu.exit":  "退出应用",
     "button.back_to_windows":  "回到Windows",
+    "button.back_to_platform": "回到{0}",
     "tooltip.back_to_windows":  "回到Windows",
+    "tooltip.back_to_platform": "回到{0}",
+    "platform.windows": "Windows",
+    "platform.linux": "Linux",
+    "platform.macos": "macOS",
     "tooltip.open_settings":  "设置",
     "settings.title":  "设置",
     "settings.shell.title":  "设置",
@@ -20,7 +25,7 @@
     "settings.nav.group_system":  "系统",
     "settings.nav.group_extensions":  "扩展",
     "settings.nav.wallpaper":  "壁纸",
-    "settings.nav.grid":  "网格",
+    "settings.nav.grid":  "组件",
     "settings.nav.color":  "颜色",
     "settings.nav.status_bar":  "状态栏",
     "settings.nav.weather":  "天气",
@@ -85,6 +90,8 @@
     "settings.status_bar.description":  "选择顶部状态栏显示的组件。",
     "settings.status_bar.clock_header":  "时间组件",
     "settings.status_bar.clock_description":  "在顶部状态栏显示时钟。",
+    "settings.status_bar.clock_transparent_background_label":  "透明背景",
+    "settings.status_bar.clock_transparent_background_desc":  "移除胶囊背景，仅保留时钟文字。",
     "settings.status_bar.spacing_header":  "组件间距",
     "settings.status_bar.spacing_desc":  "调整状态栏组件之间的间距。",
     "settings.status_bar.spacing_mode_compact":  "紧凑",
@@ -294,9 +301,18 @@
     "settings.status_bar.clock_format_label":  "时钟格式",
     "settings.status_bar.clock_format.hm":  "时:分",
     "settings.status_bar.clock_format.hms":  "时:分:秒",
-    "settings.components.title":  "网格",
+    "settings.components.title":  "组件",
-    "settings.components.description":  "调整桌面网格与布局。",
+    "settings.components.description":  "调整组件布局与圆角设计。",
-    "settings.components.grid_header":  "网格布局",
+    "settings.components.grid_header":  "网格设置",
+    "settings.components.header":  "网格设置",
+    "settings.components.short_side_label":  "短边格数",
+    "settings.components.edge_inset_label":  "屏幕边距",
+    "settings.components.spacing_label":  "组件间距",
+    "settings.components.spacing_compact":  "紧凑",
+    "settings.components.spacing_relaxed":  "宽松",
+    "settings.components.corner_radius.header":  "圆角设计",
+    "settings.components.corner_radius.label":  "组件圆角",
+    "settings.components.corner_radius.description":  "将组件容器圆角从直角连续调到接近胶囊的形态，并随圆角增大同步扩展内部安全区。",
     "settings.update.title":  "更新",
     "settings.update.current_version_label":  "当前版本",
     "settings.update.latest_version_label":  "最新发布",
@@ -401,6 +417,7 @@
     "common.monet":  "莫奈",
     "desktop.page_index_format":  "桌面 {0}",
     "launcher.title":  "应用启动台",
+    "launcher.folder": "文件夹",
     "launcher.subtitle":  "按 Windows 开始菜单结构显示所有应用与文件夹",
     "launcher.subtitle_linux":  "显示从 Linux .desktop 条目扫描到的已安装应用",
     "launcher.empty":  "未找到开始菜单条目。",
@@ -586,6 +603,18 @@
     "component.blackboard_landscape":  "横向小黑板",
     "component.browser":  "浏览器",
     "component.office_recent_documents":  "最近文档",
+    "whiteboard.settings.desc": "每个小黑板都会独立保存自己的笔记历史。",
+    "whiteboard.settings.retention.title": "笔记保留时间",
+    "whiteboard.settings.retention.desc": "选择这个小黑板在过期笔记被自动删除前，应当保留已保存笔记多久。",
+    "whiteboard.settings.retention.option": "{0} 天",
+    "whiteboard.settings.instance_scope": "这个保留时间设置会按每个小黑板组件实例单独存储。",
+    "office_recent_documents.settings.desc":  "选择此小组件需要扫描的 Windows 和 Office 最近文档来源。",
+    "office_recent_documents.settings.sources_title":  "最近文档来源",
+    "office_recent_documents.settings.sources_desc":  "可以同时选择多个来源。勾选注册表来源时，还会保留 Office interop 的 MRU 回退。",
+    "office_recent_documents.settings.source.registry":  "Office 注册表 MRU",
+    "office_recent_documents.settings.source.recent_folders":  "Windows 最近文件夹",
+    "office_recent_documents.settings.source.jump_lists":  "Windows 跳转列表",
+    "office_recent_documents.settings.hint":  "如果关闭全部来源，此小组件会保持空白，直到再次至少启用一个来源。",
     "component.holiday_calendar":  "节假日日历",
     "component.study_environment":  "环境",
     "component.study_session_control":  "自习时段控制",
@@ -782,6 +811,21 @@
     "study.environment.value.unavailable":  "--",
     "study.environment.value.display_format":  "{0:F1} dB",
     "study.environment.value.dbfs_format":  "{0:F1} dBFS",
+    "component.removable_storage":  "可移动存储",
+    "removable_storage.settings.desc":  "在桌面上显示已连接的 U 盘，并提供打开与弹出操作。",
+    "removable_storage.settings.behavior_title":  "行为",
+    "removable_storage.settings.behavior_desc":  "组件会自动监听可移动存储设备，并优先显示最新插入的 U 盘。",
+    "removable_storage.action.open":  "打开",
+    "removable_storage.action.eject":  "弹出",
+    "removable_storage.widget.default_name":  "可移动磁盘",
+    "removable_storage.widget.empty_title":  "未插入设备",
+    "removable_storage.widget.empty_subtitle":  "插入 U 盘后会自动显示在这里。",
+    "removable_storage.widget.empty_hint":  "在插入可移动设备之前，底部按钮会保持置灰不可点击。",
+    "removable_storage.widget.ready":  "已准备好，可直接打开或弹出。",
+    "removable_storage.widget.ejecting":  "正在弹出设备...",
+    "removable_storage.widget.eject_failed":  "无法弹出该设备，请先关闭正在占用它的文件后再试。",
+    "removable_storage.widget.open_failed":  "打开该设备失败。",
+    "removable_storage.widget.refresh_failed":  "刷新可移动存储列表失败。",
     "study.environment.settings.title":  "环境组件设置",
     "study.environment.settings.desc":  "配置右侧实时噪音值显示内容。",
     "study.environment.settings.show_display_db":  "显示 display dB",

LanMountainDesktop/Models/AppSettingsSnapshot.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using LanMountainDesktop.Settings.Core;
 
 namespace LanMountainDesktop.Models;
 
@@ -16,6 +17,8 @@ public sealed class AppSettingsSnapshot
 
     public bool UseSystemChrome { get; set; }
 
+    public double GlobalCornerRadiusScale { get; set; } = GlobalAppearanceSettings.DefaultCornerRadiusScale;
+
     public string ThemeColorMode { get; set; } = "default_neutral";
 
     public string SystemMaterialMode { get; set; } = "none";
@@ -68,9 +71,11 @@ public sealed class AppSettingsSnapshot
 
     public bool UploadAnonymousUsageData { get; set; }
 
-    public string? DeviceId { get; set; }
+    public string? TelemetryInstallId { get; set; }
 
-    public string? PersistentUserId { get; set; }
+    public string? TelemetryId { get; set; }
+
+    public bool HasReportedTelemetryBaseline { get; set; }
 
     public string UpdateChannel { get; set; } = "stable";
 
@@ -101,6 +106,8 @@ public sealed class AppSettingsSnapshot
 
     public string ClockDisplayFormat { get; set; } = "HourMinuteSecond";
 
+    public bool StatusBarClockTransparentBackground { get; set; }
+
     public string StatusBarSpacingMode { get; set; } = "Relaxed";
 
     public int StatusBarCustomSpacingPercent { get; set; } = 12;

LanMountainDesktop/Models/ComponentSettingsSnapshot.cs

@@ -58,12 +58,16 @@ public sealed class ComponentSettingsSnapshot
 
     public int WeatherAutoRefreshIntervalMinutes { get; set; } = 12;
 
+    public int WhiteboardNoteRetentionDays { get; set; } = 15;
+
     public bool Stcn24ForumAutoRefreshEnabled { get; set; } = true;
 
     public int Stcn24ForumAutoRefreshIntervalMinutes { get; set; } = 20;
 
     public string Stcn24ForumSourceType { get; set; } = Stcn24ForumSourceTypes.LatestCreated;
 
+    public List<string>? OfficeRecentDocumentsEnabledSources { get; set; }
+
     public ComponentSettingsSnapshot Clone()
     {
         var clone = (ComponentSettingsSnapshot)MemberwiseClone();
@@ -91,6 +95,9 @@ public sealed class ComponentSettingsSnapshot
         clone.WorldClockTimeZoneIds = WorldClockTimeZoneIds is { Count: > 0 }
             ? new List<string>(WorldClockTimeZoneIds)
             : [];
+        clone.OfficeRecentDocumentsEnabledSources = OfficeRecentDocumentsEnabledSources is not null
+            ? new List<string>(OfficeRecentDocumentsEnabledSources)
+            : null;
 
         return clone;
     }

LanMountainDesktop/Models/OfficeRecentDocumentSourceTypes.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace LanMountainDesktop.Models;
+
+public static class OfficeRecentDocumentSourceTypes
+{
+    public const string Registry = "registry";
+    public const string RecentFolders = "recent_folders";
+    public const string JumpLists = "jump_lists";
+
+    public static IReadOnlyList<string> SupportedValues { get; } =
+    [
+        Registry,
+        RecentFolders,
+        JumpLists
+    ];
+
+    public static IReadOnlyList<string> DefaultValues => SupportedValues;
+
+    public static IReadOnlyList<string> NormalizeValues(IEnumerable<string>? values, bool useDefaultWhenEmpty)
+    {
+        if (values is null)
+        {
+            return useDefaultWhenEmpty ? DefaultValues : Array.Empty<string>();
+        }
+
+        var normalized = values
+            .Select(NormalizeValue)
+            .OfType<string>()
+            .Distinct(StringComparer.OrdinalIgnoreCase)
+            .ToArray();
+
+        if (normalized.Length == 0 && useDefaultWhenEmpty)
+        {
+            return DefaultValues;
+        }
+
+        return normalized;
+    }
+
+    private static string? NormalizeValue(string? value)
+    {
+        return value?.Trim().ToLowerInvariant() switch
+        {
+            Registry => Registry,
+            RecentFolders => RecentFolders,
+            JumpLists => JumpLists,
+            _ => null
+        };
+    }
+}

LanMountainDesktop/Models/WhiteboardNoteRetentionPolicy.cs

@@ -0,0 +1,23 @@
+namespace LanMountainDesktop.Models;
+
+public static class WhiteboardNoteRetentionPolicy
+{
+    public const int MinimumDays = 7;
+    public const int MaximumDays = 15;
+    public const int DefaultDays = MaximumDays;
+
+    public static int NormalizeDays(int days)
+    {
+        if (days < MinimumDays)
+        {
+            return MinimumDays;
+        }
+
+        if (days > MaximumDays)
+        {
+            return MaximumDays;
+        }
+
+        return days;
+    }
+}

LanMountainDesktop/Models/WhiteboardNoteSnapshot.cs

@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+
+namespace LanMountainDesktop.Models;
+
+public sealed class WhiteboardNoteSnapshot
+{
+    public int Version { get; set; } = 1;
+
+    public DateTimeOffset SavedUtc { get; set; }
+
+    public List<WhiteboardStrokeSnapshot> Strokes { get; set; } = [];
+
+    public WhiteboardNoteSnapshot Clone()
+    {
+        var clone = (WhiteboardNoteSnapshot)MemberwiseClone();
+        clone.Strokes = Strokes is { Count: > 0 }
+            ? new List<WhiteboardStrokeSnapshot>(Strokes.ConvertAll(stroke => stroke?.Clone() ?? new WhiteboardStrokeSnapshot()))
+            : [];
+        return clone;
+    }
+}
+
+public sealed class WhiteboardStrokeSnapshot
+{
+    public string Color { get; set; } = "#FF000000";
+
+    public double InkThickness { get; set; } = 2.5d;
+
+    public bool IgnorePressure { get; set; } = true;
+
+    public List<WhiteboardStylusPointSnapshot> Points { get; set; } = [];
+
+    public WhiteboardStrokeSnapshot Clone()
+    {
+        var clone = (WhiteboardStrokeSnapshot)MemberwiseClone();
+        clone.Points = Points is { Count: > 0 }
+            ? new List<WhiteboardStylusPointSnapshot>(Points.ConvertAll(point => point?.Clone() ?? new WhiteboardStylusPointSnapshot()))
+            : [];
+        return clone;
+    }
+}
+
+public sealed class WhiteboardStylusPointSnapshot
+{
+    public double X { get; set; }
+
+    public double Y { get; set; }
+
+    public double Pressure { get; set; } = 0.5d;
+
+    public double Width { get; set; }
+
+    public double Height { get; set; }
+
+    public WhiteboardStylusPointSnapshot Clone()
+    {
+        return (WhiteboardStylusPointSnapshot)MemberwiseClone();
+    }
+}

LanMountainDesktop/Program.cs

@@ -4,10 +4,10 @@ using System.Threading;
 using System.Threading.Tasks;
 using Avalonia;
 using Avalonia.WebView.Desktop;
+using LanMountainDesktop.DesktopHost;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.Services;
 using LanMountainDesktop.Services.Settings;
-using Sentry;
 
 namespace LanMountainDesktop;
 
@@ -20,9 +20,6 @@ sealed class Program
     {
         AppLogger.Initialize();
         RegisterGlobalExceptionLogging();
-        InitializeDeviceId();
-        InitializeCrashReporting();
-        InitializeUserBehaviorAnalytics();
         var restartParentProcessId = AppRestartService.TryGetRestartParentProcessId(args);
 
         using var singleInstance = AcquireSingleInstance(restartParentProcessId);
@@ -41,6 +38,12 @@ sealed class Program
             return;
         }
 
+        DesktopBootstrap.InitializeStartupServices(
+            InitializeTelemetryIdentity,
+            InitializeCrashTelemetry,
+            InitializeUsageTelemetry,
+            ScheduleWhiteboardNoteStartupCleanup);
+
         var diagnostics = StartupDiagnosticsService.Run(args);
         StartupDiagnosticsService.ShowLegacyExecutableWarningIfNeeded(diagnostics);
 
@@ -50,7 +53,6 @@ sealed class Program
             StartupRenderMode = renderMode;
             AppLogger.Info("Startup", $"Resolved render mode '{renderMode}'.");
             App.CurrentSingleInstanceService = singleInstance;
-            App.AnalyticsServices = (_userBehaviorAnalyticsService, _crashReportService);
             BuildAvaloniaApp(renderMode).StartWithClassicDesktopLifetime(args);
             AppLogger.Info("Startup", "Application exited normally.");
         }
@@ -88,6 +90,25 @@ sealed class Program
         return builder;
     }
 
+    private static void ScheduleWhiteboardNoteStartupCleanup()
+    {
+        _ = Task.Run(() =>
+        {
+            try
+            {
+                var deletedCount = new WhiteboardNotePersistenceService().DeleteExpiredNotesBatch(batchSize: 512);
+                if (deletedCount > 0)
+                {
+                    AppLogger.Info("Startup", $"Deleted {deletedCount} expired whiteboard notes during startup maintenance.");
+                }
+            }
+            catch (Exception ex)
+            {
+                AppLogger.Warn("Startup", "Failed to run whiteboard note startup maintenance.", ex);
+            }
+        });
+    }
+
     private static SingleInstanceService AcquireSingleInstance(int? restartParentProcessId)
     {
         var singleInstance = SingleInstanceService.CreateDefault();
@@ -163,204 +184,90 @@ sealed class Program
     {
         AppDomain.CurrentDomain.UnhandledException += (_, eventArgs) =>
         {
+            var exception = eventArgs.ExceptionObject as Exception
+                ?? new Exception(eventArgs.ExceptionObject?.ToString() ?? "Unhandled exception.");
+
             AppLogger.Critical(
                 "UnhandledException",
                 $"Unhandled exception. IsTerminating={eventArgs.IsTerminating}",
-                eventArgs.ExceptionObject as Exception);
+                exception);
 
-            if (eventArgs.IsTerminating)
+            try
             {
-                SentrySdk.Flush(TimeSpan.FromSeconds(5));
+                TelemetryServices.Crash?.CaptureUnhandledException(
+                    exception,
+                    "AppDomain.UnhandledException",
+                    eventArgs.IsTerminating);
+            }
+            catch (Exception telemetryException)
+            {
+                AppLogger.Warn("UnhandledException", "Failed to forward unhandled exception to crash telemetry.", telemetryException);
             }
         };
 
         TaskScheduler.UnobservedTaskException += (_, eventArgs) =>
         {
             AppLogger.Error("TaskScheduler", "Unobserved task exception.", eventArgs.Exception);
+
+            try
+            {
+                TelemetryServices.Crash?.CaptureTaskException(
+                    eventArgs.Exception,
+                    "TaskScheduler.UnobservedTaskException");
+            }
+            catch (Exception telemetryException)
+            {
+                AppLogger.Warn("TaskScheduler", "Failed to forward task exception to crash telemetry.", telemetryException);
+            }
+
             eventArgs.SetObserved();
         };
     }
 
-    private static void InitializeDeviceId()
+    private static void InitializeTelemetryIdentity()
     {
         try
         {
-            DeviceIdService.Initialize(HostSettingsFacadeProvider.GetOrCreate());
+            TelemetryIdentityService.Initialize(HostSettingsFacadeProvider.GetOrCreate());
-            AppLogger.Info("Startup", $"DeviceId initialized: {DeviceIdService.Instance.DeviceId}");
+            AppLogger.Info(
+                "Startup",
+                $"Telemetry identity initialized. InstallId={TelemetryIdentityService.Instance.InstallId}; TelemetryId={TelemetryIdentityService.Instance.TelemetryId}.");
         }
         catch (Exception ex)
         {
-            AppLogger.Warn("Startup", "Failed to initialize DeviceIdService.", ex);
+            AppLogger.Warn("Startup", "Failed to initialize telemetry identity service.", ex);
         }
     }
 
-    private static void InitializeSentryForAnalytics()
+    private static void InitializeCrashTelemetry()
-    {
-        try
-        {
-            var deviceId = DeviceIdService.Instance.DeviceId;
-
-            SentrySdk.Init(options =>
-            {
-                options.Dsn = "https://f2aad3a1c63b5f2213ad82683ce93c06@o4511049423257600.ingest.us.sentry.io/4511049425813504";
-                options.AutoSessionTracking = true;
-                options.Release = GetAppVersion();
-                options.Environment = GetEnvironment();
-            });
-
-            SentrySdk.ConfigureScope(scope =>
-            {
-                scope.User = new SentryUser
-                {
-                    Id = deviceId
-                };
-
-                scope.SetTag("data_type", "analytics");
-                scope.SetTag("device_id", deviceId);
-                scope.SetTag("app_version", GetAppVersion());
-                scope.SetTag("os_name", GetOsName());
-                scope.SetTag("os_version", GetOsVersion());
-                scope.SetTag("os_build", GetOsBuild());
-                scope.SetTag("device_model", GetDeviceModel());
-                scope.SetTag("device_arch", GetDeviceArchitecture());
-                scope.SetTag("processor_count", GetProcessorCount().ToString());
-                scope.SetTag("total_memory_mb", GetTotalMemoryMB().ToString());
-                scope.SetTag("runtime_version", GetRuntimeVersion());
-                scope.SetTag("language", GetSystemLanguage());
-                scope.SetTag("clr_version", GetClrVersion());
-                scope.SetTag("is_64bit", Environment.Is64BitOperatingSystem.ToString());
-            });
-
-            SentrySdk.CaptureMessage("user_active");
-
-            AppLogger.Info("Startup", $"Analytics service initialized. DeviceId={deviceId}");
-        }
-        catch (Exception ex)
-        {
-            AppLogger.Warn("Startup", "Failed to initialize analytics service.", ex);
-        }
-    }
-
-    private static string GetAppVersion()
-    {
-        var version = typeof(Program).Assembly.GetName().Version;
-        return version is null ? "1.0.0" : $"{version.Major}.{version.Minor}.{version.Build}";
-    }
-
-    private static string GetOsName()
-    {
-        if (OperatingSystem.IsWindows()) return "Windows";
-        if (OperatingSystem.IsLinux()) return "Linux";
-        if (OperatingSystem.IsMacOS()) return "macOS";
-        return "Unknown";
-    }
-
-    private static string GetOsVersion()
-    {
-        try { return Environment.OSVersion.VersionString ?? "Unknown"; }
-        catch { return "Unknown"; }
-    }
-
-    private static string GetOsBuild()
-    {
-        try { return Environment.OSVersion.Version.Build.ToString() ?? "Unknown"; }
-        catch { return "Unknown"; }
-    }
-
-    private static string GetDeviceName()
-    {
-        try { return Environment.MachineName ?? "Unknown"; }
-        catch { return "Unknown"; }
-    }
-
-    private static string GetDeviceModel()
-    {
-        if (OperatingSystem.IsWindows()) return "Windows PC";
-        if (OperatingSystem.IsLinux()) return "Linux PC";
-        if (OperatingSystem.IsMacOS()) return "Mac";
-        return "Unknown";
-    }
-
-    private static string GetDeviceArchitecture()
-    {
-        return Environment.Is64BitOperatingSystem ? "x64" : "x86";
-    }
-
-    private static int GetProcessorCount()
-    {
-        return Environment.ProcessorCount;
-    }
-
-    private static long GetTotalMemoryMB()
-    {
-        try { return GC.GetGCMemoryInfo().TotalAvailableMemoryBytes / (1024 * 1024); }
-        catch { return 0; }
-    }
-
-    private static string GetRuntimeVersion()
-    {
-        return Environment.Version.ToString();
-    }
-
-    private static string GetSystemLanguage()
-    {
-        try { return System.Globalization.CultureInfo.CurrentUICulture.Name ?? "en-US"; }
-        catch { return "en-US"; }
-    }
-
-    private static string GetClrVersion()
-    {
-        return Environment.Version.ToString();
-    }
-
-    private static CrashReportService? _crashReportService;
-    private static UserBehaviorAnalyticsService? _userBehaviorAnalyticsService;
-
-    private static void InitializeCrashReporting()
     {
         try
         {
             var settingsFacade = HostSettingsFacadeProvider.GetOrCreate();
-            _crashReportService = new CrashReportService(settingsFacade, DeviceIdService.Instance);
+            var crashTelemetry = new SentryCrashTelemetryService(settingsFacade);
-            _crashReportService.RefreshEnabledState();
+            TelemetryServices.Crash = crashTelemetry;
+            crashTelemetry.Initialize();
+            AppLogger.Info("Startup", $"Crash telemetry initialized. Enabled={crashTelemetry.IsEnabled}.");
         }
         catch (Exception ex)
         {
-            AppLogger.Warn("Startup", "Failed to initialize crash reporting service.", ex);
+            AppLogger.Warn("Startup", "Failed to initialize crash telemetry service.", ex);
         }
     }
 
-    private static void InitializeUserBehaviorAnalytics()
+    private static void InitializeUsageTelemetry()
     {
         try
         {
             var settingsFacade = HostSettingsFacadeProvider.GetOrCreate();
-            _userBehaviorAnalyticsService = new UserBehaviorAnalyticsService(settingsFacade, DeviceIdService.Instance);
+            var usageTelemetry = new PostHogUsageTelemetryService(settingsFacade);
-            _userBehaviorAnalyticsService.Initialize();
+            TelemetryServices.Usage = usageTelemetry;
+            usageTelemetry.Initialize();
+            AppLogger.Info("Startup", $"Usage telemetry initialized. Enabled={usageTelemetry.IsUsageEnabled}.");
         }
         catch (Exception ex)
         {
-            AppLogger.Warn("Startup", "Failed to initialize user behavior analytics service.", ex);
+            AppLogger.Warn("Startup", "Failed to initialize usage telemetry service.", ex);
         }
     }
-
-    private static string GetReleaseVersion()
-    {
-        var assembly = typeof(Program).Assembly;
-        var version = assembly.GetName().Version;
-        if (version is null)
-        {
-            return "1.0.0";
-        }
-        return version.Major >= 0 ? $"{version.Major}.{version.Minor}.{version.Build}" : "1.0.0";
-    }
-
-    private static string GetEnvironment()
-    {
-#if DEBUG
-        return "development";
-#else
-        return "production";
-#endif
-    }
 }

LanMountainDesktop/Services/AppDatabaseService.cs

@@ -29,6 +29,16 @@ public sealed class AppDatabaseService
         _databasePath = Path.Combine(dataDirectory, "app.db");
     }
 
+    public AppDatabaseService(string databasePath)
+    {
+        if (string.IsNullOrWhiteSpace(databasePath))
+        {
+            throw new ArgumentException("Database path cannot be null or whitespace.", nameof(databasePath));
+        }
+
+        _databasePath = databasePath;
+    }
+
     public SqliteConnection OpenConnection()
     {
         var directory = Path.GetDirectoryName(_databasePath);

LanMountainDesktop/Services/AppearanceThemeService.cs

@@ -11,9 +11,12 @@ using Avalonia.Media;
 using Avalonia.Styling;
 using Avalonia.Threading;
 using Avalonia.Media.Imaging;
+using LanMountainDesktop.Appearance;
 using LanMountainDesktop.Models;
 using LanMountainDesktop.PluginSdk;
 using LanMountainDesktop.Services.Settings;
+using LanMountainDesktop.Settings.Core;
+using LanMountainDesktop.Shared.Contracts;
 using LanMountainDesktop.Theme;
 using Microsoft.Win32;
 
@@ -41,6 +44,8 @@ public sealed record AppearanceThemeSnapshot(
     string ThemeColorMode,
     string? UserThemeColor,
     string? SelectedWallpaperSeed,
+    double GlobalCornerRadiusScale,
+    AppearanceCornerRadiusTokens CornerRadiusTokens,
     string ResolvedSeedSource,
     MonetPalette MonetPalette,
     Color AccentColor,
@@ -464,6 +469,13 @@ internal sealed class AppearanceThemeService : IAppearanceThemeService, IDisposa
         var context = CreateThemeContext(snapshot);
         ThemeColorSystemService.ApplyThemeResources(resources, context);
         GlassEffectService.ApplyGlassResources(resources, context);
+        resources["DesignCornerRadiusMicro"] = snapshot.CornerRadiusTokens.Micro;
+        resources["DesignCornerRadiusXs"] = snapshot.CornerRadiusTokens.Xs;
+        resources["DesignCornerRadiusSm"] = snapshot.CornerRadiusTokens.Sm;
+        resources["DesignCornerRadiusMd"] = snapshot.CornerRadiusTokens.Md;
+        resources["DesignCornerRadiusLg"] = snapshot.CornerRadiusTokens.Lg;
+        resources["DesignCornerRadiusXl"] = snapshot.CornerRadiusTokens.Xl;
+        resources["DesignCornerRadiusIsland"] = snapshot.CornerRadiusTokens.Island;
     }
 
     public AppearanceMaterialSurface GetMaterialSurface(MaterialSurfaceRole role)
@@ -538,6 +550,7 @@ internal sealed class AppearanceThemeService : IAppearanceThemeService, IDisposa
         if (!refreshAll &&
             !changedKeys.Contains(nameof(AppSettingsSnapshot.IsNightMode), StringComparer.OrdinalIgnoreCase) &&
             !changedKeys.Contains(nameof(AppSettingsSnapshot.UseSystemChrome), StringComparer.OrdinalIgnoreCase) &&
+            !changedKeys.Contains(nameof(AppSettingsSnapshot.GlobalCornerRadiusScale), StringComparer.OrdinalIgnoreCase) &&
             !(respondsToThemeColor &&
               changedKeys.Contains(nameof(AppSettingsSnapshot.ThemeColor), StringComparer.OrdinalIgnoreCase)) &&
             !(respondsToWallpaper &&
@@ -559,6 +572,8 @@ internal sealed class AppearanceThemeService : IAppearanceThemeService, IDisposa
         bool queueWallpaperPaletteBuild)
     {
         var availableModes = _windowMaterialService.GetAvailableModes();
+        var globalCornerRadiusScale = GlobalAppearanceSettings.NormalizeCornerRadiusScale(themeState.GlobalCornerRadiusScale);
+        var cornerRadiusTokens = AppearanceCornerRadiusTokenFactory.Create(globalCornerRadiusScale);
         MonetPalette palette;
         IReadOnlyList<Color> wallpaperSeedCandidates;
         Color effectiveSeedColor;
@@ -598,6 +613,8 @@ internal sealed class AppearanceThemeService : IAppearanceThemeService, IDisposa
             themeColorMode,
             themeState.ThemeColor,
             selectedWallpaperSeed,
+            globalCornerRadiusScale,
+            cornerRadiusTokens,
             resolvedSeedSource,
             palette,
             ResolveAccentColor(themeColorMode, themeState.ThemeColor, palette),

LanMountainDesktop/Services/ComponentSettingsService.cs

@@ -106,6 +106,8 @@ public sealed class ComponentSettingsService : IComponentInstanceSettingsStore
 
     public void DeleteForComponent(string componentId, string? placementId)
     {
+        _ = new WhiteboardNotePersistenceService().DeleteNote(componentId, placementId);
+
         if (_settingsService is not null)
         {
             _settingsService.SaveSnapshot(

LanMountainDesktop/Services/DesktopComponentEditorRegistryFactory.cs

@@ -72,6 +72,18 @@ public static class DesktopComponentEditorRegistryFactory
             [BuiltInComponentIds.DesktopStudyEnvironment] = new(
                 BuiltInComponentIds.DesktopStudyEnvironment,
                 context => new StudyEnvironmentComponentEditor(context)),
+            [BuiltInComponentIds.DesktopRemovableStorage] = new(
+                BuiltInComponentIds.DesktopRemovableStorage,
+                context => new RemovableStorageComponentEditor(context)),
+            [BuiltInComponentIds.DesktopWhiteboard] = new(
+                BuiltInComponentIds.DesktopWhiteboard,
+                context => new WhiteboardComponentEditor(context)),
+            [BuiltInComponentIds.DesktopBlackboardLandscape] = new(
+                BuiltInComponentIds.DesktopBlackboardLandscape,
+                context => new WhiteboardComponentEditor(context)),
+            [BuiltInComponentIds.DesktopOfficeRecentDocuments] = new(
+                BuiltInComponentIds.DesktopOfficeRecentDocuments,
+                context => new OfficeRecentDocumentsComponentEditor(context)),
             [BuiltInComponentIds.DesktopWeather] = CreateWeatherRegistration(BuiltInComponentIds.DesktopWeather),
             [BuiltInComponentIds.DesktopWeatherClock] = CreateWeatherRegistration(BuiltInComponentIds.DesktopWeatherClock),
             [BuiltInComponentIds.DesktopHourlyWeather] = CreateWeatherRegistration(BuiltInComponentIds.DesktopHourlyWeather),

LanMountainDesktop/Services/DesktopComponentRegistryFactory.cs

@@ -9,6 +9,7 @@ using Avalonia.Layout;
 using Avalonia.Media;
 using LanMountainDesktop.ComponentSystem;
 using LanMountainDesktop.ComponentSystem.Extensions;
+using LanMountainDesktop.Host.Abstractions;
 using LanMountainDesktop.PluginSdk;
 using LanMountainDesktop.Services.Settings;
 using LanMountainDesktop.Views.Components;
@@ -62,7 +63,11 @@ public static class DesktopComponentRegistryFactory
                     registration.ComponentId,
                     registration.DisplayNameLocalizationKey,
                     factoryContext => CreatePluginControl(contribution, factoryContext),
-                    registration.CornerRadiusResolver));
+                    chromeContext =>
+                    {
+                        var appearanceContext = CreatePluginAppearanceContext(chromeContext);
+                        return registration.ResolveCornerRadius(appearanceContext, chromeContext.CellSize);
+                    }));
             }
         }
 
@@ -122,6 +127,11 @@ public static class DesktopComponentRegistryFactory
             var pluginSettings = new PluginScopedSettingsService(
                 contribution.Plugin.Manifest.Id,
                 settingsService);
+            var appearanceSnapshot = HostAppearanceThemeProvider.GetOrCreate().GetCurrent();
+            var pluginAppearance = new PluginAppearanceContext(new PluginAppearanceSnapshot(
+                GlobalCornerRadiusScale: appearanceSnapshot.GlobalCornerRadiusScale,
+                CornerRadiusTokens: PluginCornerRadiusTokens.FromShared(appearanceSnapshot.CornerRadiusTokens),
+                ThemeVariant: appearanceSnapshot.IsNightMode ? "Dark" : "Light"));
             var pluginContext = new PluginDesktopComponentContext(
                 contribution.Plugin.Manifest,
                 contribution.Plugin.Context.PluginDirectory,
@@ -131,6 +141,7 @@ public static class DesktopComponentRegistryFactory
                 contribution.Registration.ComponentId,
                 context.PlacementId,
                 context.CellSize,
+                pluginAppearance,
                 pluginSettings);
 
             return contribution.Registration.ControlFactory(contribution.Plugin.Services, pluginContext);
@@ -143,6 +154,14 @@ public static class DesktopComponentRegistryFactory
         }
     }
 
+    private static IPluginAppearanceContext CreatePluginAppearanceContext(ComponentChromeContext chromeContext)
+    {
+        return new PluginAppearanceContext(new PluginAppearanceSnapshot(
+            GlobalCornerRadiusScale: chromeContext.GlobalCornerRadiusScale,
+            CornerRadiusTokens: PluginCornerRadiusTokens.FromShared(chromeContext.CornerRadiusTokens),
+            ThemeVariant: "Unknown"));
+    }
+
     private static Control CreatePluginErrorControl(
         PluginDesktopComponentContribution contribution,
         Exception exception)

LanMountainDesktop/Services/IComponentLibraryService.cs

@@ -20,6 +20,7 @@ public sealed record ComponentLibraryCategoryEntry(
 
 public sealed record ComponentLibraryCreateContext(
     double CellSize,
+    double GlobalCornerRadiusScale,
     TimeZoneService TimeZoneService,
     IWeatherInfoService WeatherInfoService,
     IRecommendationInfoService RecommendationInfoService,

LanMountainDesktop/Services/IWhiteboardNotePersistenceService.cs

@@ -0,0 +1,19 @@
+using System;
+using LanMountainDesktop.Models;
+
+namespace LanMountainDesktop.Services;
+
+public interface IWhiteboardNotePersistenceService
+{
+    WhiteboardNoteSnapshot LoadNote(string componentId, string? placementId, int retentionDays);
+
+    void SaveNote(string componentId, string? placementId, WhiteboardNoteSnapshot snapshot, int retentionDays);
+
+    bool DeleteNote(string componentId, string? placementId);
+
+    bool TryDeleteExpiredNote(string componentId, string? placementId, int retentionDays);
+
+    bool IsExpired(WhiteboardNoteSnapshot snapshot, int retentionDays, DateTimeOffset? now = null);
+
+    DateTimeOffset? GetExpirationUtc(WhiteboardNoteSnapshot snapshot, int retentionDays);
+}

LanMountainDesktop/Services/OfficeRecentDocumentsService.cs

@@ -1,19 +1,25 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Globalization;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
 using System.Text;
-using System.Text.Json;
+using System.Text.RegularExpressions;
-using LanMountainDesktop.Services.Settings;
+using System.Threading;
+using LanMountainDesktop.Models;
 using Microsoft.Win32;
+using MudTools.OfficeInterop;
+using MudTools.OfficeInterop.Excel;
+using MudTools.OfficeInterop.Word;
 
 namespace LanMountainDesktop.Services;
 
 public interface IOfficeRecentDocumentsService
 {
-    List<OfficeRecentDocument> GetRecentDocuments(int maxCount = 20);
+    List<OfficeRecentDocument> GetRecentDocuments(int maxCount = 20, IReadOnlyCollection<string>? enabledSources = null);
     void OpenDocument(string filePath);
 }
 
@@ -25,31 +31,67 @@ public sealed class OfficeRecentDocument
     public DateTime LastModifiedTime { get; set; }
     public long FileSizeBytes { get; set; }
     public string IconGlyph { get; set; } = string.Empty;
+    internal DateTime? RecentAccessTime { get; set; }
+    internal int SourcePriority { get; set; }
+    internal int SourceOrder { get; set; }
 }
 
 public sealed class OfficeRecentDocumentsService : IOfficeRecentDocumentsService
 {
+    private const string LogCategory = "OfficeRecentDocs";
     private static readonly string[] OfficeExtensions = { ".doc", ".docx", ".dot", ".dotx", ".rtf" };
     private static readonly string[] ExcelExtensions = { ".xls", ".xlsx", ".xlsm", ".xlsb", ".csv" };
     private static readonly string[] PowerPointExtensions = { ".ppt", ".pptx", ".pptm", ".pps", ".ppsx" };
+    private static readonly Regex OfficeFilePathRegex = new(
+        @"(?:[A-Z]:\\|\\\\)[^\x00-\x1F""<>|]+?\.(?:docx?|dotx?|rtf|xlsx?|xlsm|xlsb|csv|pptx?|pptm|ppsx?)",
+        RegexOptions.IgnoreCase | RegexOptions.Compiled);
+    private static readonly Regex OfficeMruTimestampRegex = new(
+        @"\[T(?<filetime>[0-9A-F]+)\]",
+        RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
-    public List<OfficeRecentDocument> GetRecentDocuments(int maxCount = 20)
+    public List<OfficeRecentDocument> GetRecentDocuments(int maxCount = 20, IReadOnlyCollection<string>? enabledSources = null)
     {
         var documents = new List<OfficeRecentDocument>();
+        var normalizedSources = OfficeRecentDocumentSourceTypes.NormalizeValues(
+            enabledSources,
+            useDefaultWhenEmpty: enabledSources is null);
 
-        // 方法1: 从注册表读取Office最近文档（最可靠）
+        if (!OperatingSystem.IsWindows() || normalizedSources.Count == 0)
-        TryGetFromRegistry(documents);
+        {
+            return documents;
+        }
 
-        // 方法2: 从Recent文件夹读取快捷方式（备用）
+        var useRegistry = normalizedSources.Contains(OfficeRecentDocumentSourceTypes.Registry, StringComparer.OrdinalIgnoreCase);
-        TryGetFromRecentFolders(documents);
+        var useRecentFolders = normalizedSources.Contains(OfficeRecentDocumentSourceTypes.RecentFolders, StringComparer.OrdinalIgnoreCase);
+        var useJumpLists = normalizedSources.Contains(OfficeRecentDocumentSourceTypes.JumpLists, StringComparer.OrdinalIgnoreCase);
 
-        // 方法3: 从Windows Jump List读取（如果可用）
+        if (useRegistry)
-        TryGetFromJumpList(documents);
+        {
+            TryGetFromRegistry(documents);
+        }
+
+        if (useRecentFolders)
+        {
+            TryGetFromRecentFolders(documents);
+        }
+
+        if (useJumpLists)
+        {
+            TryGetFromJumpLists(documents);
+        }
+
+        if (useRegistry && documents.Count < maxCount)
+        {
+            TryGetFromMudToolsInterop(documents);
+        }
 
         return documents
             .GroupBy(d => d.FilePath, StringComparer.OrdinalIgnoreCase)
-            .Select(g => g.OrderByDescending(d => d.LastModifiedTime).First())
+            .Select(MergeDocuments)
-            .OrderByDescending(d => d.LastModifiedTime)
+            .OrderByDescending(d => d.RecentAccessTime ?? DateTime.MinValue)
+            .ThenBy(d => d.SourcePriority)
+            .ThenBy(d => d.SourceOrder)
+            .ThenByDescending(d => d.LastModifiedTime)
             .Take(maxCount)
             .ToList();
     }
@@ -63,261 +105,587 @@ public sealed class OfficeRecentDocumentsService : IOfficeRecentDocumentsService
                 FileName = filePath,
                 UseShellExecute = true
             };
+
             Process.Start(startInfo);
         }
+        catch (Exception ex)
+        {
+            AppLogger.Warn(LogCategory, $"Failed to open Office document '{filePath}'.", ex);
+        }
+    }
+
+    private static OfficeRecentDocument MergeDocuments(IGrouping<string, OfficeRecentDocument> group)
+    {
+        var preferred = group
+            .OrderByDescending(d => d.RecentAccessTime ?? DateTime.MinValue)
+            .ThenBy(d => d.SourcePriority)
+            .ThenBy(d => d.SourceOrder)
+            .ThenByDescending(d => d.LastModifiedTime)
+            .First();
+
+        return new OfficeRecentDocument
+        {
+            FileName = preferred.FileName,
+            FilePath = preferred.FilePath,
+            Extension = preferred.Extension,
+            LastModifiedTime = group.Max(d => d.LastModifiedTime),
+            FileSizeBytes = preferred.FileSizeBytes,
+            IconGlyph = preferred.IconGlyph,
+            RecentAccessTime = group
+                .Where(d => d.RecentAccessTime.HasValue)
+                .Select(d => d.RecentAccessTime)
+                .Max(),
+            SourcePriority = preferred.SourcePriority,
+            SourceOrder = preferred.SourceOrder
+        };
+    }
+
+    [SupportedOSPlatform("windows")]
+    private void TryGetFromMudToolsInterop(List<OfficeRecentDocument> documents)
+    {
+        try
+        {
+            RunOnStaThread(() =>
+            {
+                var sourceOrder = 0;
+                TryGetFromWordInterop(documents, ref sourceOrder);
+                TryGetFromExcelInterop(documents, ref sourceOrder);
+            });
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn(LogCategory, "MudTools.OfficeInterop recent-document read failed.", ex);
+        }
+    }
+
+    [SupportedOSPlatform("windows")]
+    private void TryGetFromWordInterop(List<OfficeRecentDocument> documents, ref int sourceOrder)
+    {
+        if (!TryGetOfficeApplication("Word.Application", out var comObject, out var createdNew))
+        {
+            return;
+        }
+
+        object? application = null;
+
+        try
+        {
+            application = WordFactory.Connection(comObject!);
+
+            if (createdNew)
+            {
+                TrySetProperty(comObject, "Visible", false);
+                TrySetProperty(application, "DisplayAlerts", WdAlertLevel.wdAlertsNone);
+            }
+
+            AddInteropRecentFiles(documents, GetPropertyValue(application, "RecentFiles"), 0, ref sourceOrder);
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn(LogCategory, "Failed to read Word recent files via MudTools.OfficeInterop.", ex);
+        }
+        finally
+        {
+            CleanupOfficeApplication(application, comObject, createdNew);
+        }
+    }
+
+    [SupportedOSPlatform("windows")]
+    private void TryGetFromExcelInterop(List<OfficeRecentDocument> documents, ref int sourceOrder)
+    {
+        if (!TryGetOfficeApplication("Excel.Application", out var comObject, out var createdNew))
+        {
+            return;
+        }
+
+        object? application = null;
+
+        try
+        {
+            application = ExcelFactory.Connection(comObject!);
+
+            if (createdNew)
+            {
+                TrySetProperty(comObject, "Visible", false);
+                TrySetProperty(application, "DisplayAlerts", false);
+            }
+
+            AddInteropRecentFiles(documents, GetPropertyValue(application, "RecentFiles"), 0, ref sourceOrder);
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn(LogCategory, "Failed to read Excel recent files via MudTools.OfficeInterop.", ex);
+        }
+        finally
+        {
+            CleanupOfficeApplication(application, comObject, createdNew);
+        }
+    }
+
+    private void AddInteropRecentFiles(
+        List<OfficeRecentDocument> documents,
+        object? recentFiles,
+        int sourcePriority,
+        ref int sourceOrder)
+    {
+        if (recentFiles == null)
+        {
+            return;
+        }
+
+        var count = GetIntProperty(recentFiles, "Count");
+        var itemProperty = recentFiles.GetType().GetProperty("Item");
+        if (count <= 0 || itemProperty == null)
+        {
+            return;
+        }
+
+        for (var index = 1; index <= count; index++)
+        {
+            try
+            {
+                var recentFile = itemProperty.GetValue(recentFiles, new object[] { index });
+                var filePath = GetStringProperty(recentFile, "Path");
+                AddDocumentIfExists(documents, filePath, sourcePriority, sourceOrder++, null);
+            }
+            catch
+            {
+                // Ignore a single malformed MRU entry and keep processing the rest.
+            }
+        }
+    }
+
+    [SupportedOSPlatform("windows")]
+    private static bool TryGetOfficeApplication(string progId, out object? comObject, out bool createdNew)
+    {
+        comObject = null;
+        createdNew = false;
+
+        var applicationType = Type.GetTypeFromProgID(progId, throwOnError: false);
+        if (applicationType == null)
+        {
+            return false;
+        }
+
+        try
+        {
+            comObject = Activator.CreateInstance(applicationType);
+            createdNew = comObject != null;
+            return comObject != null;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    [SupportedOSPlatform("windows")]
+    private static void CleanupOfficeApplication(object? application, object? comObject, bool createdNew)
+    {
+        try
+        {
+            if (createdNew && application != null)
+            {
+                InvokeParameterlessMethod(application, "Quit");
+            }
+        }
+        catch
+        {
+        }
+
+        try
+        {
+            if (application is IDisposable disposable)
+            {
+                disposable.Dispose();
+            }
+        }
+        catch
+        {
+        }
+
+        ReleaseComObject(application);
+        if (!ReferenceEquals(application, comObject))
+        {
+            ReleaseComObject(comObject);
+        }
+    }
+
+    [SupportedOSPlatform("windows")]
+    private static void ReleaseComObject(object? instance)
+    {
+        if (instance == null || !Marshal.IsComObject(instance))
+        {
+            return;
+        }
+
+        try
+        {
+            Marshal.FinalReleaseComObject(instance);
+        }
         catch
         {
         }
     }
 
-#pragma warning disable CA1416 // 平台兼容性警告
+    [SupportedOSPlatform("windows")]
+    private static void RunOnStaThread(Action action)
+    {
+        Exception? exception = null;
+        using var finished = new ManualResetEventSlim();
+
+        var thread = new Thread(() =>
+        {
+            try
+            {
+                action();
+            }
+            catch (Exception ex)
+            {
+                exception = ex;
+            }
+            finally
+            {
+                finished.Set();
+            }
+        });
+
+        thread.IsBackground = true;
+        thread.SetApartmentState(ApartmentState.STA);
+        thread.Start();
+        finished.Wait();
+
+        if (exception != null)
+        {
+            throw new InvalidOperationException("Failed to run Office interop on STA thread.", exception);
+        }
+    }
+
+    [SupportedOSPlatform("windows")]
     private void TryGetFromRegistry(List<OfficeRecentDocument> documents)
     {
         try
         {
-            // Word最近文档
+            using var officeRoot = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Office");
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\Word\Reading Locations");
+            if (officeRoot == null)
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\16.0\Word\Reading Locations");
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\15.0\Word\Reading Locations");
-
-            // Excel最近文档
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\Excel\Reading Locations");
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\16.0\Excel\Reading Locations");
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\15.0\Excel\Reading Locations");
-
-            // PowerPoint最近文档
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\PowerPoint\Reading Locations");
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\16.0\PowerPoint\Reading Locations");
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\15.0\PowerPoint\Reading Locations");
-
-            // 通用Office最近文档
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\16.0\Common\Open Find\Microsoft Office Word");
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\16.0\Common\Open Find\Microsoft Office Excel");
-            TryGetFromOfficeRegistry(documents, @"Software\Microsoft\Office\16.0\Common\Open Find\Microsoft Office PowerPoint");
-        }
-        catch
-        {
-            // 忽略注册表访问错误
-        }
-    }
-
-    private void TryGetFromOfficeRegistry(List<OfficeRecentDocument> documents, string registryPath)
-    {
-        try
-        {
-            using var key = Registry.CurrentUser.OpenSubKey(registryPath);
-            if (key == null) return;
-
-            foreach (var subKeyName in key.GetSubKeyNames())
             {
-                try
+                return;
-                {
+            }
-                    using var subKey = key.OpenSubKey(subKeyName);
-                    if (subKey == null) continue;
 
-                    var filePath = subKey.GetValue("Path") as string;
+            var versions = officeRoot
-                    if (string.IsNullOrEmpty(filePath)) continue;
+                .GetSubKeyNames()
+                .Where(IsOfficeVersionKey)
+                .OrderByDescending(ParseVersionKey)
+                .ToList();
 
-                    AddDocumentIfExists(documents, filePath);
+            var sourceOrder = 0;
-                }
+            foreach (var version in versions)
-                catch
+            {
-                {
+                TryGetFromRegistryApp(documents, version, "Word", ref sourceOrder);
-                    // 忽略单个子键访问错误
+                TryGetFromRegistryApp(documents, version, "Excel", ref sourceOrder);
-                }
+                TryGetFromRegistryApp(documents, version, "PowerPoint", ref sourceOrder);
             }
         }
-        catch
+        catch (Exception ex)
         {
-            // 忽略注册表访问错误
+            AppLogger.Warn(LogCategory, "Failed to read Office MRU entries from the registry.", ex);
+        }
+    }
+
+    [SupportedOSPlatform("windows")]
+    private void TryGetFromRegistryApp(List<OfficeRecentDocument> documents, string version, string appName, ref int sourceOrder)
+    {
+        TryGetFromRegistryMruKey(documents, $@"Software\Microsoft\Office\{version}\{appName}\File MRU", ref sourceOrder);
+
+        using var userMruRoot = Registry.CurrentUser.OpenSubKey($@"Software\Microsoft\Office\{version}\{appName}\User MRU");
+        if (userMruRoot == null)
+        {
+            return;
+        }
+
+        foreach (var identityKey in userMruRoot.GetSubKeyNames())
+        {
+            TryGetFromRegistryMruKey(
+                documents,
+                $@"Software\Microsoft\Office\{version}\{appName}\User MRU\{identityKey}\File MRU",
+                ref sourceOrder);
+        }
+    }
+
+    [SupportedOSPlatform("windows")]
+    private void TryGetFromRegistryMruKey(List<OfficeRecentDocument> documents, string registryPath, ref int sourceOrder)
+    {
+        using var key = Registry.CurrentUser.OpenSubKey(registryPath);
+        if (key == null)
+        {
+            return;
+        }
+
+        var entries = key
+            .GetValueNames()
+            .Where(name => name.StartsWith("Item ", StringComparison.OrdinalIgnoreCase))
+            .Select(name => new
+            {
+                Name = name,
+                Order = ParseMruItemOrder(name),
+                Value = key.GetValue(name) as string
+            })
+            .Where(entry => !string.IsNullOrWhiteSpace(entry.Value))
+            .OrderBy(entry => entry.Order);
+
+        foreach (var entry in entries)
+        {
+            var (filePath, recentAccessTime) = ParseOfficeMruValue(entry.Value!);
+            AddDocumentIfExists(documents, filePath, 1, sourceOrder++, recentAccessTime);
         }
     }
-#pragma warning restore CA1416 // 平台兼容性警告
 
     private void TryGetFromRecentFolders(List<OfficeRecentDocument> documents)
     {
-        var recentPaths = GetRecentFolders();
+        try
-
-        foreach (var recentPath in recentPaths)
         {
-            if (!Directory.Exists(recentPath))
+            var linkFiles = GetRecentFolders()
-            {
+                .Where(Directory.Exists)
-                continue;
+                .SelectMany(path => Directory.EnumerateFiles(path, "*.lnk"))
-            }
+                .Select(path => new FileInfo(path))
+                .OrderByDescending(info => info.LastWriteTimeUtc)
+                .ToList();
 
-            try
+            var sourceOrder = 0;
+            foreach (var linkFile in linkFiles)
             {
-                var files = Directory.GetFiles(recentPath, "*.lnk");
+                var targetPath = GetShortcutTarget(linkFile.FullName);
-                foreach (var lnkPath in files)
+                AddDocumentIfExists(documents, targetPath, 2, sourceOrder++, linkFile.LastWriteTime);
-                {
-                    var targetPath = GetShortcutTarget(lnkPath);
-                    if (string.IsNullOrEmpty(targetPath))
-                    {
-                        continue;
-                    }
-
-                    AddDocumentIfExists(documents, targetPath);
-                }
-            }
-            catch
-            {
-                // 忽略文件夹访问错误
             }
         }
+        catch (Exception ex)
+        {
+            AppLogger.Warn(LogCategory, "Failed to read Windows Recent shortcut folders.", ex);
+        }
     }
 
-    private void TryGetFromJumpList(List<OfficeRecentDocument> documents)
+    private void TryGetFromJumpLists(List<OfficeRecentDocument> documents)
     {
         try
         {
-            // Windows Jump List存储在以下位置
+            var jumpListFiles = GetJumpListFolders()
-            var appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
+                .Where(Directory.Exists)
-            var jumpListPath = Path.Combine(
+                .SelectMany(path => Directory.EnumerateFiles(path, "*.automaticDestinations-ms")
-                Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
+                    .Concat(Directory.EnumerateFiles(path, "*.customDestinations-ms")))
-                "Microsoft", "Windows", "Recent", "AutomaticDestinations");
+                .Select(path => new FileInfo(path))
+                .OrderByDescending(info => info.LastWriteTimeUtc)
+                .ToList();
 
-            if (!Directory.Exists(jumpListPath)) return;
+            var sourceOrder = 0;
-
+            foreach (var jumpListFile in jumpListFiles)
-            // Office应用的Jump List文件
-            var officeJumpListFiles = new[]
             {
-                "a7bd7a3f3d5a4c74.automaticDestinations-ms", // Word
+                TryParseJumpListFile(jumpListFile, documents, ref sourceOrder);
-                "9b524fe3be704a4d.automaticDestinations-ms", // Excel
+            }
-                "d0063c4c7de64e5e.automaticDestinations-ms"  // PowerPoint
+        }
-            };
+        catch (Exception ex)
+        {
+            AppLogger.Warn(LogCategory, "Failed to read Windows Jump Lists for Office documents.", ex);
+        }
+    }
 
-            foreach (var jumpFile in officeJumpListFiles)
+    private void TryParseJumpListFile(FileInfo jumpListFile, List<OfficeRecentDocument> documents, ref int sourceOrder)
+    {
+        try
+        {
+            var bytes = File.ReadAllBytes(jumpListFile.FullName);
+            foreach (var filePath in ExtractPossiblePaths(bytes))
             {
-                var fullPath = Path.Combine(jumpListPath, jumpFile);
+                AddDocumentIfExists(documents, filePath, 3, sourceOrder++, jumpListFile.LastWriteTime);
-                if (File.Exists(fullPath))
-                {
-                    TryParseJumpListFile(fullPath, documents);
-                }
             }
         }
         catch
         {
-            // Jump List解析失败，忽略
+            // Ignore a single Jump List file and keep scanning the rest.
         }
     }
 
-    private void TryParseJumpListFile(string jumpListPath, List<OfficeRecentDocument> documents)
+    private static IEnumerable<string> ExtractPossiblePaths(byte[] bytes)
     {
-        try
+        var paths = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
-        {
-            // Jump List文件是二进制格式，这里使用简化的方法
-            // 读取文件并尝试提取文件路径
-            var bytes = File.ReadAllBytes(jumpListPath);
-            var text = Encoding.Unicode.GetString(bytes);
 
-            // 查找可能的文件路径（简化实现）
+        foreach (var text in new[]
-            var possiblePaths = ExtractPossiblePaths(text);
+                 {
-            foreach (var path in possiblePaths)
+                     Encoding.Unicode.GetString(bytes),
+                     Encoding.Latin1.GetString(bytes)
+                 })
+        {
+            foreach (Match match in OfficeFilePathRegex.Matches(text))
             {
-                AddDocumentIfExists(documents, path);
+                var normalizedPath = NormalizeFilePath(match.Value);
-            }
+                if (!string.IsNullOrWhiteSpace(normalizedPath))
-        }
-        catch
-        {
-            // Jump List解析失败，忽略
-        }
-    }
-
-    private IEnumerable<string> ExtractPossiblePaths(string text)
-    {
-        var paths = new List<string>();
-
-        // 查找常见的文件路径模式
-        var patterns = new[]
-        {
-            @"[A-Z]:\\[^\x00-\x1F""<>|]*\.(docx?|xlsx?|pptx?|rtf|csv)",
-            @"\\\\[^\\]+\\[^\x00-\x1F""<>|]*\.(docx?|xlsx?|pptx?|rtf|csv)"
-        };
-
-        foreach (var pattern in patterns)
-        {
-            try
-            {
-                var matches = System.Text.RegularExpressions.Regex.Matches(text, pattern,
-                    System.Text.RegularExpressions.RegexOptions.IgnoreCase);
-
-                foreach (System.Text.RegularExpressions.Match match in matches)
                 {
-                    var path = match.Value.Trim('\0', ' ', '"');
+                    paths.Add(normalizedPath);
-                    if (!string.IsNullOrEmpty(path))
-                    {
-                        paths.Add(path);
-                    }
                 }
             }
-            catch
-            {
-                // 忽略正则表达式错误
-            }
         }
 
-        return paths.Distinct(StringComparer.OrdinalIgnoreCase);
+        return paths;
     }
 
-    private void AddDocumentIfExists(List<OfficeRecentDocument> documents, string filePath)
+    private void AddDocumentIfExists(
+        List<OfficeRecentDocument> documents,
+        string? filePath,
+        int sourcePriority,
+        int sourceOrder,
+        DateTime? recentAccessTime)
     {
         try
         {
-            var extension = Path.GetExtension(filePath).ToLowerInvariant();
+            var normalizedPath = NormalizeFilePath(filePath);
-            if (!IsOfficeFile(extension))
+            if (string.IsNullOrWhiteSpace(normalizedPath))
             {
                 return;
             }
 
-            if (!File.Exists(filePath))
+            var extension = Path.GetExtension(normalizedPath).ToLowerInvariant();
+            if (!IsOfficeFile(extension) || !File.Exists(normalizedPath))
             {
                 return;
             }
 
-            var fileInfo = new FileInfo(filePath);
+            var fileInfo = new FileInfo(normalizedPath);
-            var doc = new OfficeRecentDocument
+            documents.Add(new OfficeRecentDocument
             {
-                FileName = Path.GetFileNameWithoutExtension(filePath),
+                FileName = Path.GetFileNameWithoutExtension(normalizedPath),
-                FilePath = filePath,
+                FilePath = normalizedPath,
                 Extension = extension,
                 LastModifiedTime = fileInfo.LastWriteTime,
                 FileSizeBytes = fileInfo.Length,
-                IconGlyph = GetIconGlyph(extension)
+                IconGlyph = GetIconGlyph(extension),
-            };
+                RecentAccessTime = recentAccessTime,
-
+                SourcePriority = sourcePriority,
-            if (!documents.Any(d => string.Equals(d.FilePath, filePath, StringComparison.OrdinalIgnoreCase)))
+                SourceOrder = sourceOrder
-            {
+            });
-                documents.Add(doc);
-            }
         }
         catch
         {
-            // 忽略单个文件处理错误
+            // Ignore a single file and keep processing the rest of the MRU list.
         }
     }
 
-    private static List<string> GetRecentFolders()
+    private static IEnumerable<string> GetRecentFolders()
     {
-        var folders = new List<string>();
-
         var appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
-        folders.Add(Path.Combine(appData, "Microsoft", "Word", "Recent"));
-        folders.Add(Path.Combine(appData, "Microsoft", "Excel", "Recent"));
-        folders.Add(Path.Combine(appData, "Microsoft", "PowerPoint", "Recent"));
-
-        // 添加Office 365路径
         var localAppData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
-        folders.Add(Path.Combine(localAppData, "Microsoft", "Office", "Word", "Recent"));
-        folders.Add(Path.Combine(localAppData, "Microsoft", "Office", "Excel", "Recent"));
-        folders.Add(Path.Combine(localAppData, "Microsoft", "Office", "PowerPoint", "Recent"));
 
-        return folders;
+        return new[]
+        {
+            Path.Combine(appData, "Microsoft", "Windows", "Recent"),
+            Path.Combine(appData, "Microsoft", "Word", "Recent"),
+            Path.Combine(appData, "Microsoft", "Excel", "Recent"),
+            Path.Combine(appData, "Microsoft", "PowerPoint", "Recent"),
+            Path.Combine(localAppData, "Microsoft", "Office", "Word", "Recent"),
+            Path.Combine(localAppData, "Microsoft", "Office", "Excel", "Recent"),
+            Path.Combine(localAppData, "Microsoft", "Office", "PowerPoint", "Recent")
+        }.Distinct(StringComparer.OrdinalIgnoreCase);
+    }
+
+    private static IEnumerable<string> GetJumpListFolders()
+    {
+        var appData = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
+        var localAppData = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
+
+        return new[]
+        {
+            Path.Combine(appData, "Microsoft", "Windows", "Recent", "AutomaticDestinations"),
+            Path.Combine(appData, "Microsoft", "Windows", "Recent", "CustomDestinations"),
+            Path.Combine(localAppData, "Microsoft", "Windows", "Recent", "AutomaticDestinations"),
+            Path.Combine(localAppData, "Microsoft", "Windows", "Recent", "CustomDestinations")
+        }.Distinct(StringComparer.OrdinalIgnoreCase);
+    }
+
+    private static bool IsOfficeVersionKey(string keyName)
+    {
+        return Version.TryParse(keyName, out _);
+    }
+
+    private static Version ParseVersionKey(string keyName)
+    {
+        return Version.TryParse(keyName, out var version) ? version : new Version(0, 0);
+    }
+
+    private static int ParseMruItemOrder(string valueName)
+    {
+        var numberText = valueName["Item ".Length..];
+        return int.TryParse(numberText, NumberStyles.Integer, CultureInfo.InvariantCulture, out var number)
+            ? number
+            : int.MaxValue;
+    }
+
+    private static (string? FilePath, DateTime? RecentAccessTime) ParseOfficeMruValue(string rawValue)
+    {
+        var filePath = ExtractOfficeFilePath(rawValue);
+        DateTime? recentAccessTime = null;
+
+        var timestampMatch = OfficeMruTimestampRegex.Match(rawValue);
+        if (timestampMatch.Success &&
+            long.TryParse(timestampMatch.Groups["filetime"].Value, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out var fileTime) &&
+            fileTime > 0)
+        {
+            try
+            {
+                recentAccessTime = DateTime.FromFileTimeUtc(fileTime).ToLocalTime();
+            }
+            catch
+            {
+                recentAccessTime = null;
+            }
+        }
+
+        return (filePath, recentAccessTime);
+    }
+
+    private static string? ExtractOfficeFilePath(string rawValue)
+    {
+        if (string.IsNullOrWhiteSpace(rawValue))
+        {
+            return null;
+        }
+
+        var markerIndex = rawValue.LastIndexOf('*');
+        var candidate = markerIndex >= 0
+            ? rawValue[(markerIndex + 1)..]
+            : rawValue;
+
+        var normalizedCandidate = NormalizeFilePath(candidate);
+        if (!string.IsNullOrWhiteSpace(normalizedCandidate) && IsOfficeFile(Path.GetExtension(normalizedCandidate)))
+        {
+            return normalizedCandidate;
+        }
+
+        var match = OfficeFilePathRegex.Match(rawValue);
+        return match.Success ? NormalizeFilePath(match.Value) : null;
+    }
+
+    private static string? NormalizeFilePath(string? rawPath)
+    {
+        if (string.IsNullOrWhiteSpace(rawPath))
+        {
+            return null;
+        }
+
+        var candidate = rawPath.Trim('\0', ' ', '"');
+        candidate = Environment.ExpandEnvironmentVariables(candidate);
+
+        if (Uri.TryCreate(candidate, UriKind.Absolute, out var uri) && uri.IsFile)
+        {
+            candidate = uri.LocalPath;
+        }
+
+        candidate = candidate.Replace('/', '\\');
+        return string.IsNullOrWhiteSpace(candidate) ? null : candidate;
     }
 
     private static bool IsOfficeFile(string extension)
     {
-        return OfficeExtensions.Contains(extension) ||
+        return OfficeExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase) ||
-               ExcelExtensions.Contains(extension) ||
+               ExcelExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase) ||
-               PowerPointExtensions.Contains(extension);
+               PowerPointExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase);
     }
 
     private static string GetIconGlyph(string extension)
@@ -335,4 +703,40 @@ public sealed class OfficeRecentDocumentsService : IOfficeRecentDocumentsService
     {
         return ShortcutHelper.GetShortcutTarget(lnkPath);
     }
+
+    private static object? GetPropertyValue(object? instance, string propertyName)
+    {
+        return instance?.GetType().GetProperty(propertyName)?.GetValue(instance);
+    }
+
+    private static string? GetStringProperty(object? instance, string propertyName)
+    {
+        return GetPropertyValue(instance, propertyName) as string;
+    }
+
+    private static int GetIntProperty(object instance, string propertyName)
+    {
+        var value = GetPropertyValue(instance, propertyName);
+        return value switch
+        {
+            int intValue => intValue,
+            short shortValue => shortValue,
+            long longValue => (int)longValue,
+            _ => 0
+        };
+    }
+
+    private static void TrySetProperty(object? instance, string propertyName, object value)
+    {
+        var property = instance?.GetType().GetProperty(propertyName);
+        if (property?.CanWrite == true)
+        {
+            property.SetValue(instance, value);
+        }
+    }
+
+    private static void InvokeParameterlessMethod(object instance, string methodName)
+    {
+        instance.GetType().GetMethod(methodName, Type.EmptyTypes)?.Invoke(instance, null);
+    }
 }

LanMountainDesktop/Services/PostHogUsageTelemetryService.cs

@@ -0,0 +1,629 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http;
+using System.Text;
+using System.Text.Json;
+using System.Threading;
+using LanMountainDesktop.Models;
+using LanMountainDesktop.PluginSdk;
+using LanMountainDesktop.Services.Settings;
+
+namespace LanMountainDesktop.Services;
+
+public sealed class PostHogUsageTelemetryService : IDisposable
+{
+    private const string PostHogApiKey = "phc_bhQZvKDDfsEdLT6kkRFvrWMT8Pc5aCGGsnxoc5ijSf9";
+    private const string PostHogHost = "https://us.i.posthog.com/capture/";
+
+    private readonly ISettingsFacadeService _settingsFacade;
+    private readonly ISettingsService _settingsService;
+    private readonly HttpClient _httpClient = new()
+    {
+        Timeout = TimeSpan.FromSeconds(10)
+    };
+    private readonly Queue<TelemetryEvent> _eventQueue = new();
+    private readonly object _queueLock = new();
+
+    private Timer? _flushTimer;
+    private bool _isInitialized;
+    private bool _isUsageEnabled;
+    private bool _sessionActive;
+    private string _sessionId = string.Empty;
+    private DateTimeOffset _sessionStartUtc;
+    private long _sequence;
+    private readonly string _launchId = Guid.NewGuid().ToString("N");
+
+    public PostHogUsageTelemetryService(ISettingsFacadeService settingsFacade)
+    {
+        _settingsFacade = settingsFacade ?? throw new ArgumentNullException(nameof(settingsFacade));
+        _settingsService = settingsFacade.Settings;
+        _settingsService.Changed += OnSettingsChanged;
+    }
+
+    public bool IsUsageEnabled => _isUsageEnabled;
+
+    public void Initialize()
+    {
+        if (_isInitialized)
+        {
+            return;
+        }
+
+        _isInitialized = true;
+
+        EnsureBaselineEventSent();
+        RefreshEnabledState(forceSessionStart: true);
+
+        _flushTimer = new Timer(
+            _ => FlushEvents(),
+            null,
+            TimeSpan.FromSeconds(10),
+            TimeSpan.FromSeconds(30));
+
+        AppLogger.Info(
+            "PostHogUsage",
+            $"Usage telemetry initialized. Enabled={_isUsageEnabled}; InstallId={TelemetryIdentityService.Instance.InstallId}; TelemetryId={TelemetryIdentityService.Instance.TelemetryId}.");
+    }
+
+    public void RefreshEnabledState(bool forceSessionStart = false)
+    {
+        try
+        {
+            var snapshot = _settingsFacade.Settings.LoadSnapshot<AppSettingsSnapshot>(SettingsScope.App);
+            var enabled = snapshot.UploadAnonymousUsageData;
+
+            if (_isUsageEnabled == enabled && !forceSessionStart)
+            {
+                return;
+            }
+
+            var previous = _isUsageEnabled;
+            _isUsageEnabled = enabled;
+            AppLogger.Info("PostHogUsage", $"Usage analytics enabled state changed from '{previous}' to '{_isUsageEnabled}'.");
+
+            if (_isUsageEnabled)
+            {
+                StartSession("usage_enabled");
+                return;
+            }
+
+            ClearQueuedEvents();
+            StopSessionWithoutSending();
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("PostHogUsage", "Failed to refresh usage analytics enabled state.", ex);
+            _isUsageEnabled = false;
+            ClearQueuedEvents();
+            StopSessionWithoutSending();
+        }
+    }
+
+    public void TrackMainWindowOpened(string source, bool isVisible, string windowState)
+    {
+        CaptureEvent(
+            "main_window_opened",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source,
+                ["is_visible"] = isVisible,
+                ["window_state"] = windowState
+            },
+            forceFlush: true);
+    }
+
+    public void TrackMainWindowClosed(string source, bool wasVisible, string windowState)
+    {
+        CaptureEvent(
+            "main_window_closed",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source,
+                ["was_visible"] = wasVisible,
+                ["window_state"] = windowState
+            },
+            forceFlush: true);
+    }
+
+    public void TrackSettingsWindowOpened(string source, string? currentPageId)
+    {
+        CaptureEvent(
+            "settings_window_opened",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source,
+                ["current_page_id"] = currentPageId
+            },
+            forceFlush: true);
+    }
+
+    public void TrackSettingsWindowClosed(string source, string? currentPageId)
+    {
+        CaptureEvent(
+            "settings_window_closed",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source,
+                ["current_page_id"] = currentPageId
+            },
+            forceFlush: true);
+    }
+
+    public void TrackSettingsNavigation(string? fromPageId, string? toPageId, string source)
+    {
+        CaptureEvent(
+            "settings_navigation",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source,
+                ["from_page_id"] = fromPageId,
+                ["to_page_id"] = toPageId
+            },
+            stateBefore: CreatePageState(fromPageId),
+            stateAfter: CreatePageState(toPageId));
+    }
+
+    public void TrackSettingsDrawerOpened(string? pageId, string? drawerTitle)
+    {
+        CaptureEvent(
+            "settings_drawer_opened",
+            new Dictionary<string, object?>
+            {
+                ["page_id"] = pageId,
+                ["drawer_title"] = drawerTitle
+            },
+            forceFlush: true);
+    }
+
+    public void TrackSettingsDrawerClosed(string? pageId, string? drawerTitle)
+    {
+        CaptureEvent(
+            "settings_drawer_closed",
+            new Dictionary<string, object?>
+            {
+                ["page_id"] = pageId,
+                ["drawer_title"] = drawerTitle
+            },
+            forceFlush: true);
+    }
+
+    public void TrackDesktopComponentPlaced(DesktopComponentPlacementSnapshot placement, string source)
+    {
+        CaptureEvent(
+            "desktop_component_placed",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source
+            },
+            stateAfter: DescribePlacement(placement),
+            forceFlush: true);
+    }
+
+    public void TrackDesktopComponentMoved(
+        DesktopComponentPlacementSnapshot before,
+        DesktopComponentPlacementSnapshot after,
+        string source)
+    {
+        CaptureEvent(
+            "desktop_component_moved",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source
+            },
+            stateBefore: DescribePlacement(before),
+            stateAfter: DescribePlacement(after),
+            forceFlush: true);
+    }
+
+    public void TrackDesktopComponentResized(
+        DesktopComponentPlacementSnapshot before,
+        DesktopComponentPlacementSnapshot after,
+        string source)
+    {
+        CaptureEvent(
+            "desktop_component_resized",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source
+            },
+            stateBefore: DescribePlacement(before),
+            stateAfter: DescribePlacement(after),
+            forceFlush: true);
+    }
+
+    public void TrackDesktopComponentDeleted(DesktopComponentPlacementSnapshot before, string source)
+    {
+        CaptureEvent(
+            "desktop_component_deleted",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source
+            },
+            stateBefore: DescribePlacement(before),
+            forceFlush: true);
+    }
+
+    public void TrackDesktopComponentEditorOpened(DesktopComponentPlacementSnapshot placement, string source)
+    {
+        CaptureEvent(
+            "desktop_component_editor_opened",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source
+            },
+            stateBefore: DescribePlacement(placement),
+            forceFlush: true);
+    }
+
+    public void TrackSessionStarted(string source)
+    {
+        StartSession(source);
+    }
+
+    public void TrackSessionEnded(string source)
+    {
+        EndSession(source);
+    }
+
+    public void Shutdown(bool isRestart, string source)
+    {
+        if (!_isInitialized)
+        {
+            return;
+        }
+
+        if (_isUsageEnabled && _sessionActive)
+        {
+            EndSession(source, isRestart);
+        }
+
+        FlushEvents();
+        AppLogger.Info(
+            "PostHogUsage",
+            $"Usage telemetry shutdown complete. Source='{source}'; Restart='{isRestart}'; Enabled={_isUsageEnabled}.");
+    }
+
+    public void Dispose()
+    {
+        try
+        {
+            _flushTimer?.Dispose();
+            _settingsService.Changed -= OnSettingsChanged;
+            Shutdown(isRestart: false, source: "Dispose");
+            FlushEvents();
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("PostHogUsage", "Error disposing usage telemetry service.", ex);
+        }
+        finally
+        {
+            _httpClient.Dispose();
+        }
+    }
+
+    private void EnsureBaselineEventSent()
+    {
+        try
+        {
+            var identity = TelemetryIdentityService.Instance;
+            if (identity.HasReportedBaseline)
+            {
+                return;
+            }
+
+            var now = DateTimeOffset.UtcNow;
+            if (SendBaselineEventToPostHog(identity.InstallId, now))
+            {
+                identity.MarkBaselineReported();
+            }
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("PostHogUsage", "Failed to send baseline launch event.", ex);
+        }
+    }
+
+    private bool SendBaselineEventToPostHog(string installId, DateTimeOffset timestamp)
+    {
+        try
+        {
+            var requestBody = new Dictionary<string, object?>
+            {
+                ["api_key"] = PostHogApiKey,
+                ["event"] = "app_first_launch",
+                ["distinct_id"] = installId,
+                ["timestamp"] = timestamp.ToString("o"),
+                ["properties"] = new Dictionary<string, object?>
+                {
+                    ["launch_time_utc"] = timestamp.ToString("o")
+                }
+            };
+
+            var json = JsonSerializer.Serialize(requestBody);
+            var bytes = Encoding.UTF8.GetBytes(json);
+
+            using var content = new ByteArrayContent(bytes);
+            content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");
+
+            var response = _httpClient.PostAsync(PostHogHost, content).GetAwaiter().GetResult();
+            var responseBody = response.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+
+            if (!response.IsSuccessStatusCode)
+            {
+                AppLogger.Warn(
+                    "PostHogUsage",
+                    $"PostHog baseline event failed: {response.StatusCode} - {responseBody}");
+                return false;
+            }
+
+            AppLogger.Info("PostHogUsage", "Sent first-launch baseline event.");
+            return true;
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("PostHogUsage", "Failed to send baseline launch event.", ex);
+            return false;
+        }
+    }
+
+    private void StartSession(string source)
+    {
+        if (!_isInitialized || !_isUsageEnabled)
+        {
+            return;
+        }
+
+        if (_sessionActive)
+        {
+            return;
+        }
+
+        _sessionActive = true;
+        _sessionId = Guid.NewGuid().ToString("N");
+        _sessionStartUtc = DateTimeOffset.UtcNow;
+        _sequence = 0;
+
+        CaptureEvent(
+            "app_session_start",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source,
+                ["launch_id"] = _launchId,
+                ["session_start_utc"] = _sessionStartUtc.ToString("o"),
+                ["local_hour"] = _sessionStartUtc.ToLocalTime().Hour,
+                ["day_part"] = TelemetryEnvironmentInfo.GetLocalDayPart(_sessionStartUtc),
+                ["timezone"] = TimeZoneInfo.Local.Id,
+                ["app_version"] = TelemetryEnvironmentInfo.GetAppVersion(),
+                ["os_name"] = TelemetryEnvironmentInfo.GetOsName(),
+                ["os_version"] = TelemetryEnvironmentInfo.GetOsVersion(),
+                ["device_model"] = TelemetryEnvironmentInfo.GetDeviceModel(),
+                ["device_arch"] = TelemetryEnvironmentInfo.GetDeviceArchitecture()
+            },
+            forceFlush: true);
+
+        AppLogger.Info("PostHogUsage", $"Session started. SessionId={_sessionId}; Source='{source}'.");
+    }
+
+    private void EndSession(string source, bool isRestart = false)
+    {
+        if (!_isInitialized || !_sessionActive)
+        {
+            return;
+        }
+
+        var endUtc = DateTimeOffset.UtcNow;
+        var durationMs = Math.Max(0, (long)(endUtc - _sessionStartUtc).TotalMilliseconds);
+
+        CaptureEvent(
+            "app_session_end",
+            new Dictionary<string, object?>
+            {
+                ["source"] = source,
+                ["launch_id"] = _launchId,
+                ["session_start_utc"] = _sessionStartUtc.ToString("o"),
+                ["session_end_utc"] = endUtc.ToString("o"),
+                ["duration_ms"] = durationMs,
+                ["is_restart"] = isRestart
+            },
+            forceFlush: true);
+
+        _sessionActive = false;
+        _sessionId = string.Empty;
+        _sessionStartUtc = default;
+        _sequence = 0;
+        AppLogger.Info("PostHogUsage", $"Session ended. Source='{source}'; DurationMs={durationMs}; Restart={isRestart}.");
+    }
+
+    private void StopSessionWithoutSending()
+    {
+        _sessionActive = false;
+        _sessionId = string.Empty;
+        _sessionStartUtc = default;
+        _sequence = 0;
+    }
+
+    private void OnSettingsChanged(object? sender, SettingsChangedEvent e)
+    {
+        _ = sender;
+
+        if (e.Scope != SettingsScope.App ||
+            e.ChangedKeys is null ||
+            !e.ChangedKeys.Contains(nameof(AppSettingsSnapshot.UploadAnonymousUsageData), StringComparer.OrdinalIgnoreCase))
+        {
+            return;
+        }
+
+        AppLogger.Info("PostHogUsage", "Usage analytics settings changed. Refreshing enabled state.");
+        RefreshEnabledState();
+    }
+
+    private void CaptureEvent(
+        string eventName,
+        IReadOnlyDictionary<string, object?>? payload = null,
+        IReadOnlyDictionary<string, object?>? stateBefore = null,
+        IReadOnlyDictionary<string, object?>? stateAfter = null,
+        bool forceFlush = false)
+    {
+        if (!_isInitialized || !_isUsageEnabled || !_sessionActive)
+        {
+            return;
+        }
+
+        var eventData = new TelemetryEvent(
+            eventName,
+            TelemetryIdentityService.Instance.TelemetryId,
+            TelemetryIdentityService.Instance.InstallId,
+            TelemetryIdentityService.Instance.TelemetryId,
+            _sessionId,
+            Interlocked.Increment(ref _sequence),
+            DateTimeOffset.UtcNow,
+            payload ?? new Dictionary<string, object?>(),
+            stateBefore,
+            stateAfter);
+
+        lock (_queueLock)
+        {
+            _eventQueue.Enqueue(eventData);
+        }
+
+        if (forceFlush)
+        {
+            FlushEvents();
+            return;
+        }
+
+        var shouldFlush = false;
+        lock (_queueLock)
+        {
+            shouldFlush = _eventQueue.Count >= 20;
+        }
+
+        if (shouldFlush)
+        {
+            FlushEvents();
+        }
+    }
+
+    private void FlushEvents()
+    {
+        List<TelemetryEvent> eventsToSend;
+
+        lock (_queueLock)
+        {
+            if (_eventQueue.Count == 0)
+            {
+                return;
+            }
+
+            eventsToSend = new List<TelemetryEvent>();
+            while (_eventQueue.Count > 0 && eventsToSend.Count < 20)
+            {
+                eventsToSend.Add(_eventQueue.Dequeue());
+            }
+        }
+
+        try
+        {
+            foreach (var telemetryEvent in eventsToSend)
+            {
+                if (!SendEventToPostHog(telemetryEvent, flushImmediately: false))
+                {
+                    throw new InvalidOperationException($"Failed to send PostHog event '{telemetryEvent.EventName}'.");
+                }
+            }
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("PostHogUsage", "Failed to send queued events to PostHog.", ex);
+
+            lock (_queueLock)
+            {
+                foreach (var evt in eventsToSend)
+                {
+                    if (_eventQueue.Count >= 100)
+                    {
+                        break;
+                    }
+
+                    _eventQueue.Enqueue(evt);
+                }
+            }
+        }
+    }
+
+    private bool SendEventToPostHog(TelemetryEvent telemetryEvent, bool flushImmediately)
+    {
+        try
+        {
+            var requestBody = new Dictionary<string, object?>
+            {
+                ["api_key"] = PostHogApiKey,
+                ["event"] = telemetryEvent.EventName,
+                ["distinct_id"] = telemetryEvent.DistinctId,
+                ["timestamp"] = telemetryEvent.Timestamp.ToString("o"),
+                ["properties"] = telemetryEvent.ToPostHogProperties()
+            };
+
+            var json = JsonSerializer.Serialize(requestBody);
+            var bytes = Encoding.UTF8.GetBytes(json);
+
+            using var content = new ByteArrayContent(bytes);
+            content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");
+
+            var response = _httpClient.PostAsync(PostHogHost, content).GetAwaiter().GetResult();
+            var responseBody = response.Content.ReadAsStringAsync().GetAwaiter().GetResult();
+
+            if (!response.IsSuccessStatusCode)
+            {
+                AppLogger.Warn(
+                    "PostHogUsage",
+                    $"PostHog event '{telemetryEvent.EventName}' failed: {response.StatusCode} - {responseBody}");
+                return false;
+            }
+
+            if (flushImmediately)
+            {
+                AppLogger.Info("PostHogUsage", $"Sent event '{telemetryEvent.EventName}' immediately.");
+            }
+
+            return true;
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("PostHogUsage", $"Failed to send PostHog event '{telemetryEvent.EventName}'.", ex);
+            return false;
+        }
+    }
+
+    private void ClearQueuedEvents()
+    {
+        lock (_queueLock)
+        {
+            _eventQueue.Clear();
+        }
+    }
+
+    private static IReadOnlyDictionary<string, object?> CreatePageState(string? pageId)
+    {
+        return new Dictionary<string, object?>
+        {
+            ["page_id"] = pageId
+        };
+    }
+
+    private static IReadOnlyDictionary<string, object?> DescribePlacement(DesktopComponentPlacementSnapshot placement)
+    {
+        return new Dictionary<string, object?>
+        {
+            ["placement_id"] = placement.PlacementId,
+            ["component_id"] = placement.ComponentId,
+            ["page_index"] = placement.PageIndex,
+            ["row"] = placement.Row,
+            ["column"] = placement.Column,
+            ["width_cells"] = placement.WidthCells,
+            ["height_cells"] = placement.HeightCells
+        };
+    }
+}

LanMountainDesktop/Services/RemovableStorageService.cs

@@ -0,0 +1,310 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+namespace LanMountainDesktop.Services;
+
+public sealed record RemovableStorageDrive(
+    string RootPath,
+    string DriveLetter,
+    string? VolumeLabel);
+
+public interface IRemovableStorageService
+{
+    IReadOnlyList<RemovableStorageDrive> GetConnectedDrives();
+
+    bool OpenDrive(string rootPath);
+
+    bool EjectDrive(string rootPath);
+}
+
+public sealed class RemovableStorageService : IRemovableStorageService
+{
+    public IReadOnlyList<RemovableStorageDrive> GetConnectedDrives()
+    {
+        var drives = new List<RemovableStorageDrive>();
+
+        foreach (var drive in DriveInfo.GetDrives())
+        {
+            try
+            {
+                if (drive.DriveType != DriveType.Removable || !drive.IsReady)
+                {
+                    continue;
+                }
+
+                var rootPath = NormalizeRootPath(drive.Name);
+                if (string.IsNullOrWhiteSpace(rootPath))
+                {
+                    continue;
+                }
+
+                var driveLetter = rootPath.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
+                var volumeLabel = string.IsNullOrWhiteSpace(drive.VolumeLabel)
+                    ? null
+                    : drive.VolumeLabel.Trim();
+
+                drives.Add(new RemovableStorageDrive(rootPath, driveLetter, volumeLabel));
+            }
+            catch (Exception ex)
+            {
+                AppLogger.Warn("RemovableStorage", $"Failed to inspect drive '{drive.Name}'.", ex);
+            }
+        }
+
+        return drives
+            .OrderBy(drive => drive.DriveLetter, StringComparer.OrdinalIgnoreCase)
+            .ToArray();
+    }
+
+    public bool OpenDrive(string rootPath)
+    {
+        var normalizedRootPath = NormalizeRootPath(rootPath);
+        if (string.IsNullOrWhiteSpace(normalizedRootPath))
+        {
+            return false;
+        }
+
+        try
+        {
+            Process.Start(new ProcessStartInfo
+            {
+                FileName = normalizedRootPath,
+                UseShellExecute = true
+            });
+            return true;
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("RemovableStorage", $"Failed to open drive '{normalizedRootPath}'.", ex);
+            return false;
+        }
+    }
+
+    public bool EjectDrive(string rootPath)
+    {
+        if (!OperatingSystem.IsWindows())
+        {
+            return false;
+        }
+
+        var normalizedRootPath = NormalizeRootPath(rootPath);
+        if (string.IsNullOrWhiteSpace(normalizedRootPath))
+        {
+            return false;
+        }
+
+        object? shellApplication = null;
+        object? computerFolder = null;
+        object? driveItem = null;
+
+        try
+        {
+            var shellType = Type.GetTypeFromProgID("Shell.Application");
+            if (shellType is null)
+            {
+                return false;
+            }
+
+            shellApplication = Activator.CreateInstance(shellType);
+            if (shellApplication is null)
+            {
+                return false;
+            }
+
+            computerFolder = shellType.InvokeMember(
+                "NameSpace",
+                BindingFlags.InvokeMethod,
+                binder: null,
+                target: shellApplication,
+                args: [17]);
+            if (computerFolder is null)
+            {
+                return false;
+            }
+
+            var driveToken = normalizedRootPath.TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
+            driveItem = computerFolder.GetType().InvokeMember(
+                "ParseName",
+                BindingFlags.InvokeMethod,
+                binder: null,
+                target: computerFolder,
+                args: [driveToken]);
+            if (driveItem is null)
+            {
+                return false;
+            }
+
+            if (TryInvokeVerb(driveItem, "Eject"))
+            {
+                return true;
+            }
+
+            return TryInvokeLocalizedEjectVerb(driveItem);
+        }
+        catch (Exception ex)
+        {
+            AppLogger.Warn("RemovableStorage", $"Failed to eject drive '{normalizedRootPath}'.", ex);
+            return false;
+        }
+        finally
+        {
+            ReleaseComObject(driveItem);
+            ReleaseComObject(computerFolder);
+            ReleaseComObject(shellApplication);
+        }
+    }
+
+    private static bool TryInvokeLocalizedEjectVerb(object driveItem)
+    {
+        object? verbs = null;
+
+        try
+        {
+            verbs = driveItem.GetType().InvokeMember(
+                "Verbs",
+                BindingFlags.InvokeMethod,
+                binder: null,
+                target: driveItem,
+                args: null);
+            if (verbs is null)
+            {
+                return false;
+            }
+
+            var verbsType = verbs.GetType();
+            var countObject = verbsType.InvokeMember(
+                "Count",
+                BindingFlags.GetProperty,
+                binder: null,
+                target: verbs,
+                args: null);
+            var count = countObject is null
+                ? 0
+                : Convert.ToInt32(countObject, CultureInfo.InvariantCulture);
+
+            for (var index = 0; index < count; index++)
+            {
+                object? verb = null;
+
+                try
+                {
+                    verb = verbsType.InvokeMember(
+                        "Item",
+                        BindingFlags.InvokeMethod,
+                        binder: null,
+                        target: verbs,
+                        args: [index]);
+                    if (verb is null)
+                    {
+                        continue;
+                    }
+
+                    var verbNameObject = verb.GetType().InvokeMember(
+                        "Name",
+                        BindingFlags.GetProperty,
+                        binder: null,
+                        target: verb,
+                        args: null);
+                    var verbName = Convert.ToString(verbNameObject, CultureInfo.InvariantCulture);
+                    if (!IsEjectVerbName(verbName))
+                    {
+                        continue;
+                    }
+
+                    verb.GetType().InvokeMember(
+                        "DoIt",
+                        BindingFlags.InvokeMethod,
+                        binder: null,
+                        target: verb,
+                        args: null);
+                    return true;
+                }
+                finally
+                {
+                    ReleaseComObject(verb);
+                }
+            }
+
+            return false;
+        }
+        finally
+        {
+            ReleaseComObject(verbs);
+        }
+    }
+
+    private static bool TryInvokeVerb(object driveItem, string verbName)
+    {
+        try
+        {
+            driveItem.GetType().InvokeMember(
+                "InvokeVerb",
+                BindingFlags.InvokeMethod,
+                binder: null,
+                target: driveItem,
+                args: [verbName]);
+            return true;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    private static bool IsEjectVerbName(string? verbName)
+    {
+        if (string.IsNullOrWhiteSpace(verbName))
+        {
+            return false;
+        }
+
+        var normalized = string.Concat(
+            verbName
+                .Where(character => !char.IsWhiteSpace(character) && character != '&'))
+            .Trim();
+
+        return normalized.Contains("Eject", StringComparison.OrdinalIgnoreCase) ||
+               normalized.Contains("弹出", StringComparison.Ordinal) ||
+               normalized.Contains("安全删除", StringComparison.Ordinal) ||
+               normalized.Contains("卸载", StringComparison.Ordinal);
+    }
+
+    private static string NormalizeRootPath(string? rootPath)
+    {
+        if (string.IsNullOrWhiteSpace(rootPath))
+        {
+            return string.Empty;
+        }
+
+        var trimmed = rootPath.Trim();
+        if (trimmed.Length == 1 && char.IsLetter(trimmed[0]))
+        {
+            return string.Create(CultureInfo.InvariantCulture, $"{trimmed}:{Path.DirectorySeparatorChar}");
+        }
+
+        if (trimmed.Length == 2 && char.IsLetter(trimmed[0]) && trimmed[1] == ':')
+        {
+            return trimmed + Path.DirectorySeparatorChar;
+        }
+
+        var normalized = trimmed.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
+        var resolvedRoot = Path.GetPathRoot(normalized);
+        return string.IsNullOrWhiteSpace(resolvedRoot)
+            ? normalized
+            : resolvedRoot;
+    }
+
+    private static void ReleaseComObject(object? value)
+    {
+        if (value is not null && Marshal.IsComObject(value))
+        {
+            Marshal.FinalReleaseComObject(value);
+        }
+    }
+}