feat(vcs): macOS 宿主接入插件 VCS Provider，SVN 改为独立社区插件（#827 P3）

.agents/notes/implemented/architecture/2026-10-17-plugin-capability-versions.md

@@ -59,7 +59,7 @@ Core 能校验一个能力，不代表宿主能运行它。宿主在 `plugins.de
 
 能力表放在宿主代码里，写在能力实现的旁边，Core 不再按平台去猜。原来按 `darwin-` 前缀和级别写死的判断，就是 Core 替宿主猜、又容易和宿主实现漂移的例子。
 
-macOS 宿主接受级别 1 到 3（`supportedDeclarativeAPIVersions = [1, 2, 3]`），能力表是 `PluginManifest.hostCapabilities`，在校验、索引和安装审查时都发给 Core；其中的 `buildSystems: [1]` 随 macOS 的 Build 工具窗口一起加入，但 macOS 尚未实现 Provider，所以不声明 `buildProviders`；市场过滤、清单校验和安装审查都会拒绝需要它的插件，纯模板构建插件仍可用。Core 自己支持 `buildProviders: 1`，不传宿主表时仍可校验并生成 Provider 计划。`vcsProviders: 1` 也是这样：Core 已经能校验清单、识别工作副本根并转发请求，但 macOS 和 Windows 都还没有接入 VCS Provider 会话，所以两端的能力表都不包含它，需要它的插件在两端都不可安装。Windows 还没有声明式插件宿主，不发送能力表，所以 Windows 不列出级别 3 的插件。宿主接入某个能力时，要做两件事：让宿主接受级别 3，并在宿主自己的能力表里加上这个能力的版本，而且只在宿主真正能运行它时才加。
+macOS 宿主接受级别 1 到 3（`supportedDeclarativeAPIVersions = [1, 2, 3]`），能力表是 `PluginManifest.hostCapabilities`，在校验、索引和安装审查时都发给 Core；其中的 `buildSystems: [1]` 随 macOS 的 Build 工具窗口一起加入，`buildProviders: [1]` 在 macOS 接入构建 Provider 会话后才加入。`vcsProviders: [1]` 同样等 macOS 接入 VCS Provider 会话（版本控制工具窗口、项目树状态和文件移动）后才加入，见[统一 VCS 模型提案](../../proposed/architecture/2026-10-22-unified-vcs-provider-model.md)的 P3。Core 自己支持 `buildProviders: 1` 和 `vcsProviders: 1`，不传宿主表时仍可校验清单、生成 Provider 计划、识别工作副本根并转发请求。Windows 还没有声明式插件宿主，不发送能力表，所以 Windows 不列出级别 3 的插件。宿主接入某个能力时，要做两件事：让宿主接受级别 3，并在宿主自己的能力表里加上这个能力的版本，而且只在宿主真正能运行它时才加。
 
 ### 3. 市场索引带上能力版本
 

Plugins/mac/README.md

@@ -47,6 +47,18 @@ Cargo-specific compatibility tests run in the plugin repository against a pinned
 Lithe Core through its public JSON API. This repository retains generic plugin
 contract tests; it does not keep Cargo community plugin snapshots.
 
+## Subversion community plugin
+
+[Subversion](https://github.com/Lithe-IDEA/lithe-plugin-svn)
+(`io.github.lithe-idea.svn-support`) is a VCS provider plugin maintained and
+released independently in the same way. It needs a Lithe build that declares
+the `vcsProviders` host capability, and runs the user's `svn` 1.8+ through a
+Node SDK provider. Its svn output fixtures and Core compatibility tests live in
+the plugin repository. This repository keeps the generic VCS provider contract,
+its manifest fixture, and the Core tests; the SDK's sample provider
+(`sample-vcs`) lives with the SDK in
+[lithe-plugin-docs](https://github.com/Lithe-IDEA/lithe-plugin-docs).
+
 ## Downloadable official plugins
 
 No downloadable official plugin is configured right now:

macos/Resources/zh-Hans.lproj/Localizable.strings

@@ -3716,6 +3716,76 @@
 /* 内嵌 HTML 预览浏览器：右键菜单、打印和 PDF。 */
 "Print…" = "打印…";
 "Export as PDF…" = "导出为 PDF…";
+
+/* 插件 VCS Provider：安装审核、工具窗口、项目树和差异比较。 */
+"%@ provider (inside the plugin)" = "%@ Provider（插件内置）";
+"%@ provider (installed on this Mac)" = "%@ Provider（使用本机已安装的程序）";
+"%1$@ provider (runs with %2$@)" = "%1$@ Provider（使用 %2$@ 运行）";
+"Client: %@" = "客户端：%@";
+"May connect to the repository server" = "可能连接仓库服务器";
+"Show %@ Diff" = "显示 %@ 差异";
+"%1$@ does not provide %2$@ because %3$@ already does." = "%3$@ 已提供 %2$@，因此不再使用 %1$@ 提供的版本。";
+"Committing…" = "正在提交…";
+"Rolling back…" = "正在回滚…";
+"Updating…" = "正在更新…";
+"Marking as resolved…" = "正在标记为已解决…";
+"Cleaning up…" = "正在清理…";
+"Moving…" = "正在移动…";
+"Wait for the running version control action to finish." = "请等待正在执行的版本控制操作完成。";
+"This working copy is no longer available. Refresh and try again." = "此工作副本已不可用。请刷新后重试。";
+"Authentication failed. Lithe cannot ask for credentials yet: sign in once with the command-line client so it stores them, then try again." = "认证失败。Lithe 暂时无法询问凭据：请先用命令行客户端登录一次并保存凭据，然后重试。";
+"The working copy is out of date. Update it, then commit again." = "工作副本已过期。请先更新，再重新提交。";
+"The action stopped on conflicted files. Resolve them, then try again." = "操作因冲突文件而停止。请先解决冲突，然后重试。";
+"The working copy is locked by an interrupted action. Run Cleanup, then try again." = "工作副本被中断的操作锁定。请先执行清理，然后重试。";
+"This working copy format is not supported. Upgrade it with the command-line client." = "不支持此工作副本格式。请用命令行客户端升级。";
+"The version control client could not be run. Check that it is installed." = "无法运行版本控制客户端。请检查它是否已安装。";
+"Lithe could not evaluate the version control data: %@" = "Lithe 无法解析版本控制数据：%@";
+"This version control provider does not support this action." = "此版本控制 Provider 不支持该操作。";
+"The version control provider failed to start." = "版本控制 Provider 启动失败。";
+"The version control provider stopped before it was ready." = "版本控制 Provider 在就绪前已停止。";
+"Version control provider" = "版本控制 Provider";
+"Missing" = "缺失";
+"Replaced" = "已替换";
+"Type changed" = "类型已更改";
+"Unversioned" = "未版本控制";
+"Ignored" = "已忽略";
+"Switched" = "已切换";
+"No revisions" = "没有修订版本";
+"More paths changed than are shown." = "更改的路径多于此处显示的数量。";
+"Open File" = "打开文件";
+"Binary files cannot be compared." = "无法比较二进制文件。";
+"The file is too large to compare." = "文件过大，无法比较。";
+"Base revision" = "基线版本";
+"Roll back the selected changes?" = "回滚选中的更改？";
+"Local edits to these files are lost." = "这些文件的本地修改将会丢失。";
+"Mark as Resolved" = "标记为已解决";
+"Clean Up Working Copy" = "清理工作副本";
+"More Actions" = "更多操作";
+"Working copy" = "工作副本";
+"%@ holds the metadata of several version control systems. Choose the one that manages it." = "%@ 包含多个版本控制系统的元数据。请选择管理它的版本控制系统。";
+"The workspace" = "工作区";
+"The workspace is too large to search completely; some working copies may be missing." = "工作区过大，无法完整搜索；可能有工作副本未被识别。";
+"There are too many changes to list; some are not shown." = "更改过多，部分未显示。";
+"Detecting working copies…" = "正在识别工作副本…";
+"Reading changes…" = "正在读取更改…";
+"No %@ working copy was detected in this workspace." = "此工作区中没有识别到 %@ 工作副本。";
+"Detect Again" = "重新识别";
+"Moved from %@" = "从 %@ 移动";
+"Tree conflict" = "树冲突";
+"Properties modified" = "属性已修改";
+"Locked in this working copy" = "已在此工作副本中锁定";
+"Locked by another user" = "已被其他用户锁定";
+"Show History" = "显示历史";
+"%lld files selected" = "已选择 %lld 个文件";
+"Committed revision %@." = "已提交修订版本 %@。";
+"Committed." = "已提交。";
+"Updated to revision %@." = "已更新到修订版本 %@。";
+"Updated." = "已更新。";
+"%lld files have conflicts." = "%lld 个文件存在冲突。";
+"The working copy was cleaned up." = "工作副本已清理。";
+"History of %@" = "%@ 的历史";
+"Show All" = "显示全部";
+"Restart Lithe to use %@." = "重启 Lithe 后即可使用 %@。";
 "Instructions" = "指令";
 "Global instructions" = "全局指令";
 "Instruction Agent" = "指令所属 Agent";

macos/Sources/Lithe/Application/Composition/AppServices.swift

@@ -21,6 +21,8 @@ final class AppServices {
     /// Gives build providers that share a language server the language
     /// sessions; `nil` when the platform starts no build providers.
     var connectBuildProviderLanguageSessions: ((@escaping @MainActor () -> LanguageToolingSessionManager?) -> Void)?
+    /// Plugin VCS providers; `nil` when no installed plugin declares one.
+    var vcsProviders: VcsProvidersFeatureModel?
     let moduleRuntime: ModuleRuntime
     let pluginManager: any PluginManaging
     let pluginMarketplace: any PluginMarketplaceServicing

macos/Sources/Lithe/Application/Composition/WorkspaceProjectionComposition.swift

@@ -53,6 +53,9 @@ enum WorkspaceProjectionComposition {
                 guard let feature = await model?.activateHistoryModule() else { return }
                 await feature.relocateHistory(from: source, to: destination)
             },
+            moveTrackedItem: { [weak model] source, destination in
+                await model?.vcsProvidersFeature?.move(from: source, to: destination) ?? false
+            },
             relocateOpenDocuments: { [weak document] source, destination in
                 document?.relocateOpenDocuments(from: source, to: destination)
             },