chore(runtime): upgrade DSH and bundled plugins for runtime-7.11

chore(runtime): upgrade DSH and bundled plugins for runtime-7.10
fix(runtime): remove obsolete PDF browser compatibility patch
2026-10-30 17:08:16 +08:00 · 2026-10-26 11:22:36 +08:00 · 2026-10-18 19:24:17 +08:00 · 2026-10-18 15:51:26 +08:00 · 2026-10-18 14:22:40 +08:00 · 2026-10-18 13:16:32 +08:00
33 changed files with 1493 additions and 67 deletions
@@ -17,3 +17,32 @@ output/
 !.env.example
 *.sqlite*
 *.log
+
+# Local IDE files
+.idea/
+*.iml
+
+# Generated files left when switching from android-app
+/.dart_tool/
+/.flutter-plugins-dependencies
+/build/
+/android/.gradle/
+/android/.kotlin/
+/android/build/
+/android/app/build/
+/android/local.properties
+/android/gradlew
+/android/gradlew.bat
+/android/gradle/wrapper/gradle-wrapper.jar
+/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
+
+# Android packages and signing credentials
+*.apk
+*.aab
+*.jks
+*.keystore
+*.p12
+*.pfx
+keystore.properties
+signing.properties
+/android/key.properties
@@ -1,27 +1,150 @@
 # DSH Runtime Release

+## runtime-7.11：DSH rc.5 与内置插件更新（待运行验收）
+
+DSH 从 `0.2.1-rc.3` 更新为 `0.2.1-rc.5`（查询时 npm `latest` 和 `next` 均为此版本，不切换 alpha 渠道）。free-search 从 `0.9.15` 更新为 `0.9.21`，Chat Manager 从 `1.5.18-dsh-mgr.1` 更新为 `1.5.20-dsh-mgr.1`。mobile `3.2.1` 已是最新；自有 workspace `1.0.0`、preview-download `1.0.1` 及运行布局 7 不变。
+
+同步安装归档 SHA-512、新 profile、已有内置归档迁移目标及精确宿主版本门禁，保留自定义来源、启用选择和备份机制。真实发布包的 Chat Manager 客户端补丁、原生设置接口及 Office converter 导入检查通过。48 项单元测试通过，新增 runtime-7.10 插件引用迁移、备份和幂等回归。完整镜像与运行验收结果另行记录；未提交、推送或修改线上实例。
+
+AMD64 镜像 `dsh-web:runtime-7.11-amd64` 已成功构建；新版本真实依赖、插件 SHA-512 和安装期兼容性检查全部通过。禁网 UID 1000 新 profile 离线安装、重复执行启动入口（`--version`）及锁文件 SHA-256 不变通过；默认 Web 服务启动后，3080/8080 未认证请求均为 HTTP 401。测试容器已清理，未挂载现有工作区。尚未验收浏览器交互、真实搜索、设置保存、Office 实际转换、终端原生模块及 ARM64；本机没有 runtime-7.10 镜像，旧镜像锁文件迁移集成测试未执行（配置迁移单元回归已通过）。
+
+## runtime-7.10：DSH rc.3 与内置插件更新（待运行验收）
+
+沿用此前的 npm `next` 渠道，DSH 精确固定为 `0.2.1-rc.3`；查询时 `latest` 为 `0.2.1-rc.2`。mobile 更新为 `3.2.1`，free-search 为 `0.9.15`，Chat Manager 为 `1.5.18-dsh-mgr.1`（基于上游 `1.5.18`）。workspace `1.0.0`、preview-download `1.0.1` 和运行布局 7 保持不变。三个上游插件归档的 SHA-512 已核对并更新。
+
+同步新 profile 和已有内置归档引用的迁移目标，保留自定义来源、插件启用选择、备份及锁文件同步机制。设置和 Office 补丁版本门禁对齐 rc.3，真实发布包的原生设置接口与 Office converter 导入入口检查通过。Chat Manager 的三处客户端适配仍精确匹配，新版真实源码补丁及语法检查通过；没有修改认证机制。mobile/free-search 的预发布 peer 例外仍只允许精确 rc.3 且满足 includePrerelease 范围。
+
+本次 `node --test image/*.test.mjs` 共 46 项通过，包含新增的 runtime-7.9 实际插件版本引用迁移、备份及幂等回归。单元测试和源码核查不等同于完整运行兼容性证明；浏览器交互、真实搜索、设置保存、Office 实际转换、终端原生模块、容器离线启动及 ARM64 仍需本版本验收。未提交、推送或修改线上实例。
+
+锁文件集成脚本默认验证 `dsh-web:runtime-7.9-amd64` → `dsh-web:runtime-7.10-amd64`，也可使用 `DSH_OLD_IMAGE` / `DSH_NEW_IMAGE` 指定已构建的镜像：`node image/lockfile-upgrade-smoke.mjs`。须先准备两个镜像；本次尚未完成该集成检查，不沿用旧发布的通过结论。
+
+后续运行验收发现 preview-download 安装器仍限定 rc.2，已核对 rc.3 的操作插槽及 readBytes 接口并修正精确宿主门禁。新增安装器回归直接校验发布清单中的宿主版本可以完成打包调用、未经验证版本在写入前被拒绝；目前全部 47 项回归通过。
+
+AMD64 镜像 `dsh-web:runtime-7.10-amd64` 已成功构建（ID `sha256:57d99cad32380dfc837fd1365814943b53f96abc07e84df154d02b7baa95f0bf`）。MiSans 下载首次超时，原来源重试后校验通过。禁网 UID 1000 新 profile 离线依赖安装、默认启动、未认证 HTTP 401、重启及锁文件哈希不变均通过。Office 实际 DOCX/PPTX/DOC/PPT 并发转换、已安装 DSH convertBytes 集成、输出/ZIP 限制、超时和清理通过。以上结果更新此前待验收状态；浏览器完整交互、真实搜索、设置保存、终端原生模块、旧镜像锁文件迁移和 ARM64 尚未验收，不代表可直接发布。
+
+## runtime-7.9：DSH next 与启动配置迁移
+
+锁文件同步修复：内置依赖迁移或补建 workspace 配置前，先持久化 `.dsh-lockfile-pending` 标记。仅带标记的启动安装显式传入 `--no-frozen-lockfile`，同步 `pnpm-lock.yaml`；成功后清除标记，后续启动恢复 CI 默认冻结检查。安装失败或超时保留标记并阻止应用启动，下次启动继续同步，不自动恢复旧 manifest。已有 manifest 备份机制保持不变。若旧版失败迁移已经留下“新 manifest＋旧锁文件”且没有标记，应先恢复匹配的旧 profile 备份再升级；不要直接删除锁文件。
+
+本次修复验证：45 项自动化测试通过；`node image/lockfile-upgrade-smoke.mjs` 使用本地 `dsh-upgrade-test:runtime-7.8` 与 `dsh-web:runtime-7.9-amd64` 镜像、独立临时卷、禁网非 root 容器，挂载当前修复脚本，验证真实旧锁文件迁移、随后冻结安装成功及重启锁文件哈希不变。脚本结束删除测试卷。本次未重跑面板 HTTP 升级接口或首页验收，未发布新镜像。
+
+DSH 固定为 `0.2.1-rc.2`（本次明确选择 npm `next`，查询时 `latest` 仍为 `0.2.0-rc.2`），mobile 升级为 `3.1.0`，Chat Manager 升级为明确声明支持新宿主的 `1.5.16-dsh-mgr.1`。free-search 升级为 `0.9.2`，workspace `1.0.0`、preview-download `1.0.1` 保持不变。
+
+现有 runtime 每次启动时检查 `profiles/web/package.json`，不另加容器、不联网追踪最新版。仅将 dependencies/devDependencies/optionalDependencies 中同名 `file:/usr/local/lib/dsh-mgr/<包名>-<版本>.tgz` 引用对齐镜像内置清单，并补齐相关缺失的 pnpm overrides。保留自定义安装来源、自定义 overrides、bundles、已删除的插件和其他配置。目标归档缺失、无效配置或不安全的符号链接会阻止启动。
+
+只有配置变化才写入，原文保存在同目录 `package.json.backup-<UUID>`，新文件通过原子替换写入，权限 `0600`；重复启动不会反复改写。恢复时先停止实例并备份现状，再恢复对应备份；要回退旧内置版本必须同时使用匹配的旧镜像，否则下一次启动会再次对齐当前镜像。迁移不提供针对同 UID 恶意并发修改目录的沙箱保护。
+
+新版设置 UI 已原生使用 host settings describe/mutate，构建只验证接口、不再应用旧 persistence 替换。Office 转换补丁仍限定精确宿主及插件版本；下载 slot/readBytes 和 workspaceRegistry 接口已核对上游源码。mobile/free-search 的预发布 peer 例外仅允许精确 `0.2.1-rc.2` 的 DSH 包且仍要求满足原版本范围（includePrerelease），其他依赖照常严格校验。
+
+当前自动化回归 40 项通过；AMD64 镜像已构建，禁网 UID 1000 新 profile 安装、HTTP 未认证 401、旧 mobile/free-search/chat-manager 引用迁移、备份与幂等检查通过。Office 的已安装 DSH convertBytes 集成及 DOCX/PPTX/DOC/PPT 并发、限制、超时、清理测试通过。pnpm 会提示由宿主提供的 peer 缺失/范围冲突；这不是浏览器交互兼容性证明。浏览器完整交互、真实搜索结果、设置保存、终端原生模块和 ARM64 尚未验收。以下旧发布记录中的“已有 profile 不自动改写”仅适用于旧版本。
+
+## runtime-7.8：修复下载按钮服务依赖
+
+下载插件升级为 dsh-preview-download@1.0.1，补齐 remote 服务声明，修复点击时在发送请求前抛出 cannot get property "remote" without inject 的问题。同步更新内置包和新 profile 引用，新增注册回调依赖回归测试。此修复不处理面板 401、Office 504 或 plugins/events HTTP/2 连接错误。
+
+已有实例升级镜像时，必须把 profile 中 dsh-preview-download 依赖的归档路径从 dsh-preview-download-1.0.0.tgz 改为 dsh-preview-download-1.0.1.tgz，保留其他配置和 bundles，重启后刷新页面；已有 profile 不自动改写。尚未完成线上浏览器下载验收。
+
+## runtime-7.7：预览下载插件
+
+内置独立插件 dsh-preview-download@1.0.0，在文档预览工具栏提供「下载原文件」。使用正式 sidebar.right.tab.document.actions 插槽，不修改上游 UI、不扫描 DOM、不增加服务端下载接口。通过当前会话 workspaceFiles.readBytes 获取原始字节，沿用服务端权限和完整文件大小上限；支持中文文件名、下载中状态、失败提示及切换文件/卸载时取消读取。下载的是原始文件，不是 Office 转换出的 PDF。文件元数据无法读取时不会显示工具栏按钮。
+
+新建空 profile 默认启用。已有实例升级镜像后，在 /workspace/profiles/web/package.json 的 dependencies 中添加以下条目，并在 dsh.profile.bundles 中追加一次 dsh-preview-download，保留其他配置，然后重启：
+
+~~~json
+"dsh-preview-download": "file:/usr/local/lib/dsh-mgr/dsh-preview-download-1.0.1.tgz"
+~~~
+
+插件源码位于 image/preview-download，也可单独打包安装。无第三方运行时依赖，React 由 DSH 浏览器提供。当前仅针对 DSH 0.2.0-rc.2 验证。25 项离线回归测试通过，已在现有 AMD64 镜像中验证插件打包、新 profile 离线安装及服务启动；完整 runtime-7.7 构建在 MiSans 下载阶段超时，尚未完成浏览器实际点击下载、移动端和 ARM64 验收。不应把单元测试中的拒绝响应模拟当作真实权限端到端验收。
+
+## runtime-7.6：原生 Office 文档预览
+
+Linux 文档预览通过构建期补丁将 Office-to-PDF 转换入口接到系统 LibreOffice，不再使用该入口原先默认的 WASM 后端。补丁限定 DSH 和 dsh-office-to-pdf 为 0.2.0-rc.2，目标 import 不匹配或重复应用时构建失败。保留上游授权、队列、缓存和 PDF 验证；不修改独立 dsoffice CLI 或其他插件。
+
+每次转换使用私有临时目录、独立 profile、最高宏安全级别和独立进程组；保留默认 60 秒超时，取消时终止进程组。检查输入大小、OOXML 条目数、解压总量和 CRC、输出大小及完整性。子进程采用最小环境变量；校验器地址空间上限 512 MiB，LibreOffice 为 2 GiB，单文件写入上限为 max(maxOutputBytes, 16 MiB)，最终 PDF 仍严格检查 maxOutputBytes。进程资源限制不是进程树总量或临时目录总量限制，部署时仍须容器内存、CPU、PID 和临时磁盘限制。
+
+安全边界：原生 LibreOffice 与 DSH 使用同一 UID，独立 profile 不是文件系统或网络沙箱；不应将此功能视为隔离恶意文档的服务。容器内敏感文件及网络访问仍需部署侧隔离，尤其是处理不可信外部文档时。
+
+字体由系统解析；显式 fontDirectories/fontFallbacks 配置会被拒绝，应移除并改用系统字体配置。kit 的 maxFontFiles/maxFontFileBytes/maxLoadedFontBytes 不再约束系统字体。missingFonts 为空仅表示不提供缺失字体诊断，不代表没有字体替换。
+
+已完成 AMD64 构建、22 项回归测试，以及非 root/禁网容器中 DOCX/PPTX/DOC/PPT 并发转换、已安装 DSH convertBytes 集成、输出/压缩包限制、超时及清理验证。小型单页样本约 3 秒/文件，不代表实际文档性能保证。ARM64、真实失败样本、浏览器端到端、XLS/XLSX 和视觉版式尚未验收。
+
+构建后在仓库根目录运行：
+
+~~~sh
+docker run --rm --network none --init \
+  --mount type=bind,src="$PWD/image",dst=/test,readonly \
+  --entrypoint node dsh-web:runtime-7.6-amd64 /test/office-preview-smoke.mjs
+~~~
+
+现有实例需升级新镜像才生效，不需要清空工作区。不自动提交、推送或升级线上实例。
+
+## runtime-7.5：精简 MiSans 字重
+
+runtime-7.5 修订仅保留 MiSans Regular 和 Bold，从第三方 GitHub 仓库 boyan01/mi_sans_font 的固定提交下载独立 TTF 并逐个校验 SHA-256，合计约 15.73 MB，不再下载官方完整 ZIP。构建环境需要能够访问 raw.githubusercontent.com。
+
+## runtime-7.4：文档工具、中文字体与 Chat Manager 修复
+
+runtime-7.4 修订内容：新增 Python、LibreOffice、Noto CJK 与 MiSans，并内置修复版 Chat Manager。DSH 版本仍为 0.2.0-rc.2，运行布局仍为 7，继续保留 runtime-7.3 的域名设置适配。已完成本地 AMD64 构建、19 项测试、离线启动及插件接口认证拒绝检查；ARM64 与线上面板完整删除流程尚未验收。
+
+## 内置修复版 Chat Manager
+
+镜像内置 `[email protected]`（基于官方 1.5.12，保留 MIT 许可及服务端安全校验）。补丁仅针对客户端：删除、恢复、归档搜索在面板内使用当前 `/dsh/<实例ID>/` 前缀，独立 DSH 根路径部署保持原行为；非 JSON 响应显示 HTTP 状态和代理排查提示，不再直接暴露 JSON 解析异常。不会修改全局 fetch、绕过 Cookie/Origin/可信主机校验或自动重试删除请求。
+
+新建空 web profile 默认启用此插件，内置包和 clsx 依赖均支持离线安装。已有 profile 不会被覆盖，也不会自动替换用户已安装的官方版本。升级镜像后，如需迁移已有实例，请保留其他设置，将 profile 中同名依赖改为 `file:/usr/local/lib/dsh-mgr/dsh-chat-manager-1.5.12-dsh-mgr.1.tgz`，并设置 pnpm override `dsh-chat-manager>clsx` 为 `file:/usr/local/lib/dsh-mgr/clsx-2.1.1.tgz`，确保 bundles 中只有一次 `dsh-chat-manager`，再重启实例。不要同时启用重复的手动 patch 插件条目。
+
+域名访问仍要求 DSH 配置相应 trusted host，且 runtime 必须经过面板认证与实例归属校验。此修复不开放面板根路径的插件接口。
+
+## 内置 Python 与 LibreOffice
+
+Runtime 镜像包含 Debian Bookworm 的 Python 3、pip、venv（`python` 指向 `python3`），以及 LibreOffice 和 Noto CJK 中文字体。LibreOffice 可通过 `libreoffice --headless` 无界面运行。Python 项目依赖请安装到工作区的虚拟环境中，不要覆盖系统 Python 包。
+
+这些依赖在镜像构建时安装；已有实例需要重建镜像并升级后才生效。
+
+另包含小米 MiSans 简体中文字体的 Regular 和 Bold 两个静态 TTF 字重，保留 Noto CJK，不修改默认字体优先级。构建时从第三方镜像 boyan01/mi_sans_font 的固定提交 68f3ec3fee5830ce8a1d955d462fa0df401a5341 下载两个 TTF 并校验各自 SHA-256；镜像文件与当前官网 ZIP 不同，不保证为最新版本，GitHub 仓库许可不替代小米字体许可。字体及声明位于 `/usr/local/share/fonts/misans`。MiSans 使用小米专有免费商用许可，并非开源字体许可；安装使用及对外分发镜像前应阅读[官方许可协议](https://hyperos.mi.com/font/zh/download/)，不得单独分发或售卖字体。
+
+## runtime-7.3：域名访问设置适配
+
+自 runtime-7.3 起，构建时对 DSH 0.2.0-rc.2 的设置 UI 应用精确补丁，使设置视图与表单使用 host 持久化；不修改 connection.isLoopback、可信主机、Origin 或认证逻辑。版本或目标语句不匹配时构建失败，升级上游版本必须重新审核补丁。
+
+这是构建期适配，不是普通插件。补丁本身不识别面板登录状态，该镜像的设置 UI 会对所有访问地址尝试远程设置操作，因此只能部署在受认证、校验实例归属的面板入口之后，不得绕过认证直接公开 runtime 端口。权限由服务端保证。
+
+发布前须在非 localhost 域名验证提供商目录、配置与凭据保存、刷新和重启持久化，以及未登录、跨用户和非法 Origin 的拒绝行为。单元测试不代替这些验收；现有实例需升级镜像才生效，不覆盖用户 profile 或创建空 patch。
+
 `dockerfile` 分支只维护发布清单和 runtime 镜像构建文件，不包含管理面板源码或部署配置。

 ## 发布清单

-`release.json` 是发布入口：`schema_version` 为清单格式版本，`release_id` 标识一次发布，`version` 为精确 DSH 版本，`deployment_schema` 为运行布局版本，`platforms` 为支持的平台。当前为 `runtime-7.1`、DSH `0.2.0-rc.2`、布局 7、`linux/amd64`。
+`release.json` 是发布入口：`schema_version` 为清单格式版本，`release_id` 标识一次发布，`version` 为精确 DSH 版本，`deployment_schema` 为运行布局版本，`platforms` 为支持的平台。当前待验收配置为 `runtime-7.11`、DSH `0.2.1-rc.5`、布局 7、`linux/amd64` 和 `linux/arm64`（aarch64，不含 32 位 ARM）。
+
+ARM64 验收状态：已确认 Node/Caddy 基础镜像提供 ARM64 版本，但尚未完成 ARM64 runtime 构建及运行验收。清单声明会开放面板的对应平台构建入口，不等于兼容性证明；验收完成前不要推送发布。

 此分支是可信代码来源，不是仅供读取的数据源：Dockerfile 和安装脚本会在构建时执行。只使用经过审核的提交，不要将不可信分支、PR 或任意远端内容直接用于构建。清单本身不代表镜像已经完成运行验收。

 ## 本地构建与检查

-需要 Docker、Node.js，以及拉取基础镜像和构建依赖的网络。从仓库根目录执行，版本和平台直接取自清单，不跟踪 latest：
+需要 Docker、Node.js，以及拉取基础镜像和构建依赖的网络。从仓库根目录执行，DSH 版本取自清单，平台按 Docker daemon 架构选择，不跟踪 latest：

 ~~~sh
+set -eu
 DSH_VERSION="$(node -p "require('./release.json').version")"
-PLATFORM="$(node -p "require('./release.json').platforms[0]")"
+case "$(docker info --format '{{.Architecture}}')" in
+  aarch64|arm64) PLATFORM=linux/arm64 ;;
+  x86_64|amd64) PLATFORM=linux/amd64 ;;
+  *) echo 'Unsupported Docker daemon architecture' >&2; exit 1 ;;
+esac
 RELEASE_ID="$(node -p "require('./release.json').release_id")"
 node --test image/*.test.mjs
 docker build --platform "$PLATFORM" \
  --build-arg DSH_VERSION="$DSH_VERSION" \
-  -t "dsh-web:$RELEASE_ID" ./image
+  -t "dsh-web:$RELEASE_ID-${PLATFORM#linux/}" ./image
 ~~~

+默认按 Docker daemon 架构原生构建，不再固定取清单第一个平台。在交叉构建环境可手动将 PLATFORM 设置为 linux/arm64 或 linux/amd64；需要事先配置对应原生 builder 或 QEMU/binfmt，仅设置 --platform 不会自动提供模拟能力。
+
+Dockerfile 两个阶段均继承目标平台，无需写死架构；不要将 Caddy 阶段固定为构建主机平台，也不要复用另一架构的 node_modules。
+
+发布前分别验证两个架构的镜像构建、非 root 启动、代理认证、终端及原生模块、内置插件离线协调、工作区写入和重启持久化，以及升级/恢复路径。迁移工作区时需重新安装其中的架构相关依赖。
+
 `image/` 是构建上下文。构建只生成本地镜像，不推送镜像，也不自动发布分支。保留 `image/init-profile.test.mjs` 作为独立 runtime 回归测试，覆盖初始化幂等性、保留已有配置和拒绝符号链接目录；它不依赖面板，且被 `image/.dockerignore` 排除在构建上下文之外。此测试不能替代真实容器启动、插件和持久化验收。

 ## 布局 7 合约
@@ -3,16 +3,25 @@ FROM node:24-bookworm-slim
 ARG DSH_VERSION
 # Keep the historical dependency-layer cache key; the template revision is set below.
 ARG RECIPE_REV=3
-RUN apt-get update && apt-get install -y --no-install-recommends tini ca-certificates git procps && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    tini ca-certificates git procps \
+    python3 python3-pip python3-venv python-is-python3 \
+    libreoffice fonts-noto-cjk \
+    && rm -rf /var/lib/apt/lists/*
+RUN python --version && python3 -m pip --version && libreoffice --headless --version
 RUN test -n "$DSH_VERSION" && npm install --global --foreground-scripts --loglevel=verbose --registry=https://registry.npmjs.org "@deepseek-ai/dsh@${DSH_VERSION}"
 RUN npm install --global --ignore-scripts --registry=https://registry.npmjs.org [email protected] && test "$(pnpm --version)" = "10.11.0"
 COPY install-mobile.mjs /usr/local/lib/dsh-mgr/install-mobile.mjs
 RUN node /usr/local/lib/dsh-mgr/install-mobile.mjs
 COPY install-free-search.mjs /usr/local/lib/dsh-mgr/install-free-search.mjs
 RUN node /usr/local/lib/dsh-mgr/install-free-search.mjs
+COPY install-chat-manager.mjs patch-chat-manager.mjs /usr/local/lib/dsh-mgr/
+RUN node /usr/local/lib/dsh-mgr/install-chat-manager.mjs
 COPY install-workspace.mjs /usr/local/lib/dsh-mgr/install-workspace.mjs
 RUN node /usr/local/lib/dsh-mgr/install-workspace.mjs
-COPY init-profile.mjs /usr/local/lib/dsh-mgr/init-profile.mjs
+COPY init-profile.mjs reconcile-profile.mjs /usr/local/lib/dsh-mgr/
+COPY install-host-settings.mjs /usr/local/lib/dsh-mgr/install-host-settings.mjs
+RUN node /usr/local/lib/dsh-mgr/install-host-settings.mjs
 COPY --from=proxy /usr/bin/caddy /usr/bin/caddy
 # Strip upstream file capabilities without granting any runtime capabilities.
 # A fresh file copy omits security.capability xattrs; port 8080 needs none.
@@ -20,6 +29,14 @@ RUN cp /usr/bin/caddy /usr/bin/caddy.clean && mv /usr/bin/caddy.clean /usr/bin/c
 COPY Caddyfile /etc/caddy/Caddyfile
 COPY entrypoint.sh /usr/local/bin/dsh-entrypoint
 RUN chmod 755 /usr/local/bin/dsh-entrypoint && mkdir -p /data /workspace /shared && ln -s /workspace /data/dsh-home && chown -R node:node /data /workspace /shared
+COPY install-misans.mjs /usr/local/lib/dsh-mgr/install-misans.mjs
+RUN node /usr/local/lib/dsh-mgr/install-misans.mjs
+COPY MiSans-NOTICE.txt /usr/local/share/fonts/misans/NOTICE.txt
+COPY install-office-preview.mjs native-office.mjs validate-office.py office-worker.py /usr/local/lib/dsh-mgr/
+RUN node /usr/local/lib/dsh-mgr/install-office-preview.mjs
+COPY preview-download /usr/local/lib/dsh-mgr/preview-download
+COPY install-preview-download.mjs /usr/local/lib/dsh-mgr/install-preview-download.mjs
+RUN node /usr/local/lib/dsh-mgr/install-preview-download.mjs
 ARG RECIPE_REV=7
 LABEL dsh-mgr.role=runtime dsh-mgr.version=$DSH_VERSION dsh-mgr.recipe=$RECIPE_REV
 ENV DSH_HOME=/workspace HOME=/workspace XDG_DATA_HOME=/workspace/.local/share XDG_CONFIG_HOME=/workspace/.config
@@ -0,0 +1,14 @@
+This runtime uses MiSans fonts by Xiaomi.
+Official source: https://hyperos.mi.com/font/zh/download/
+Download mirror (third-party, not an official Xiaomi repository):
+https://github.com/boyan01/mi_sans_font/tree/68f3ec3fee5830ce8a1d955d462fa0df401a5341/lib/fonts
+Files: MiSans-Regular.ttf and MiSans-Bold.ttf
+These mirrored files differ from the current official ZIP; they are not claimed
+to be the latest release. The mirror repository's license does not replace the
+Xiaomi font license.
+
+MiSans is subject to the MiSans Fonts Intellectual Property License Agreement
+published on the official download page. It is not an open-source font license.
+Installation and use indicate acceptance of that agreement. Do not modify the
+fonts or distribute/sell them separately. Review the complete agreement before
+redistributing a runtime image containing these fonts.
@@ -8,16 +8,27 @@ if [[ -f "${DSH_HOME}/profiles/web/package.json" ]]; then
    # pnpm otherwise probes registry metadata for the overlapping optional peer.
    # Restrict offline mode to profiles containing only our fixed archives.
    install_env=()
-    if node -e 'const m=require(process.env.DSH_HOME+"/profiles/web/package.json"); const pins={"dsh-mgr-workspace":"file:/usr/local/lib/dsh-mgr/dsh-mgr-workspace-1.0.0.tgz","dsh-web-mobile":"file:/usr/local/lib/dsh-mgr/dsh-web-mobile-3.0.5.tgz","dsh-free-search":"file:/usr/local/lib/dsh-mgr/dsh-free-search-0.8.5.tgz"}; process.exit(Object.entries({...m.dependencies,...m.devDependencies,...m.optionalDependencies}).every(([n,v])=>pins[n]===v)?0:1)'; then
+    if node -e 'import("/usr/local/lib/dsh-mgr/reconcile-profile.mjs").then(({BUILTIN_DEPENDENCIES:pins,BUILTIN_OVERRIDES:overrides})=>{const m=require(process.env.DSH_HOME+"/profiles/web/package.json"); process.exit([m.dependencies,m.devDependencies,m.optionalDependencies].every(section=>Object.entries(section||{}).every(([n,v])=>pins[n]===v))&&Object.entries(m.pnpm?.overrides||{}).every(([n,v])=>overrides[n]===v)?0:1)})'; then
        install_env=(npm_config_offline=true)
    fi
-    if timeout --signal=TERM --kill-after=5s 120s env CI=true "${install_env[@]}" dsh plugin --profile web install --ignore-scripts; then
+    # Only migration installs may refresh the lockfile. Keep the marker on failure
+    # so a restart retries even when package.json already contains the new pins.
+    pending_lockfile="${DSH_HOME}/profiles/web/.dsh-lockfile-pending"
+    install_args=()
+    if [[ -f "$pending_lockfile" ]]; then
+        install_args+=(--no-frozen-lockfile)
+    fi
+    # Hide routine progress/peer warnings, but replay diagnostics on any failure.
+    if install_output=$(timeout --signal=TERM --kill-after=5s 120s env CI=true "${install_env[@]}" dsh plugin --profile web install --ignore-scripts "${install_args[@]}" 2>&1); then
+        rm -f -- "$pending_lockfile"
        echo "dsh-mgr: plugin prestart reconciliation complete" >&2
    else
        status=$?
+        printf '%s\n' "$install_output" >&2
        echo "dsh-mgr: plugin prestart reconciliation failed (exit $status); application not started" >&2
        exit "$status"
    fi
+    unset install_output
 else
    echo "dsh-mgr: no web plugin manifest; using bundled plugins" >&2
 fi
@@ -1,18 +1,20 @@
 import { test } from 'node:test';
 import assert from 'node:assert/strict';
-import { mkdtempSync, mkdirSync, readFileSync, writeFileSync, rmSync } from 'node:fs';
+import { mkdtempSync, mkdirSync, readFileSync, writeFileSync, rmSync, existsSync } from 'node:fs';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import { fileURLToPath } from 'node:url';
 import { spawnSync } from 'node:child_process';

 for (const status of ['0', '23', '124', '137', 'empty']) {
-  test('runtime prestart status ' + status, () => {
+ for (const pending of [false, true]) {
+  test('runtime prestart status ' + status + ', pending migration ' + pending, () => {
    const dir = mkdtempSync(join(tmpdir(), 'dsh-prestart-'));
    try {
      if (status !== 'empty') {
        mkdirSync(join(dir, 'profiles/web'), { recursive: true, mode: 0o700 });
        writeFileSync(join(dir, 'profiles/web/package.json'), '{}', { mode: 0o600 });
+        if (pending) writeFileSync(join(dir, 'profiles/web/.dsh-lockfile-pending'), 'pending');
      }
      const scripts = {
        node: `#!/bin/bash
@@ -28,7 +30,9 @@ exec "$@"
 printf 'dsh %s\n' "$*" >> "$TRACE"
 test "$npm_config_ignore_scripts:$npm_config_ignore_pnpmfile" = true:true || exit 91
 if [ "$1" = plugin ]; then
- test "$*" = "plugin --profile web install --ignore-scripts" || exit 92
+ echo 'install progress and peer warnings'
+ echo 'install stderr diagnostics' >&2
+ test "$*" = "plugin --profile web install --ignore-scripts$EXPECTED_ARGS" || exit 92
 exit "$PLUGIN_STATUS"
 fi
 exit 0
@@ -42,7 +46,7 @@ sleep 0.1
        writeFileSync(join(dir, name), script, { mode: 0o700 });
      }
      const result = spawnSync('bash', [fileURLToPath(new URL('./entrypoint.sh', import.meta.url)), 'web', '--no-open', '--port', '3080'], {
-        env: { ...process.env, PATH: dir + ':' + process.env.PATH, DSH_HOME: dir, TRACE: join(dir, 'trace'), PLUGIN_STATUS: status },
+        env: { ...process.env, PATH: dir + ':' + process.env.PATH, DSH_HOME: dir, TRACE: join(dir, 'trace'), PLUGIN_STATUS: status, EXPECTED_ARGS: pending ? ' --no-frozen-lockfile' : '' },
        encoding: 'utf8', timeout: 5000,
      });
      assert.ifError(result.error);
@@ -55,10 +59,14 @@ sleep 0.1
        return;
      }
      assert.match(trace, /dsh plugin --profile web install --ignore-scripts/);
+      assert.equal(existsSync(join(dir, 'profiles/web/.dsh-lockfile-pending')), pending && status !== '0');
      if (status === '0') {
+        assert.doesNotMatch(output, /install progress|install stderr/);
        assert.match(output, /reconciliation complete/);
        assert.match(trace, /dsh web/);
      } else {
+        assert.match(result.stderr, /install progress and peer warnings/);
+        assert.match(result.stderr, /install stderr diagnostics/);
        assert.ok(output.includes('failed (exit ' + status + ')'), output);
        assert.doesNotMatch(trace, /caddy|dsh web/);
      }
@@ -66,6 +74,7 @@ sleep 0.1
      rmSync(dir, { recursive: true, force: true });
    }
  });
+ }
 }

 test('runtime pins pnpm and uses nonroot with tini process-group forwarding', () => {
@@ -1,35 +1,38 @@
-import { mkdirSync, existsSync, writeFileSync, readFileSync, readdirSync, lstatSync } from 'node:fs';
-import { join } from 'node:path';
-const home = process.env.DSH_HOME;
-if (!home) throw new Error('DSH_HOME required');
-const profile = join(home, 'profiles/web');
-for (const dir of [home, join(home, 'profiles'), profile]) {
-  try {
-    const stat = lstatSync(dir);
-    if (!stat.isDirectory() || stat.isSymbolicLink()) throw new Error('unsafe profile directory');
-  } catch (error) { if (error.code !== 'ENOENT') throw error; }
-}
-// Never rewrite an existing user manifest or patch.
-if (!existsSync(profile) || readdirSync(profile).length === 0) {
-  mkdirSync(profile, { recursive: true });
-  writeFileSync(join(profile, 'package.json'), JSON.stringify({
-    name: 'dsh-profile-web', private: true,
-    dependencies: { 'dsh-mgr-workspace': 'file:/usr/local/lib/dsh-mgr/dsh-mgr-workspace-1.0.0.tgz', 'dsh-web-mobile': 'file:/usr/local/lib/dsh-mgr/dsh-web-mobile-3.0.5.tgz', 'dsh-free-search': 'file:/usr/local/lib/dsh-mgr/dsh-free-search-0.8.5.tgz' },
-    pnpm: { overrides: {
-      'dsh-free-search>@deepseek-ai/schemastery': 'file:/usr/local/lib/dsh-mgr/schemastery-3.18.4.tgz',
-      '@deepseek-ai/schemastery>@deepseek-ai/cosmokit': 'file:/usr/local/lib/dsh-mgr/cosmokit-1.8.5.tgz',
-      '@deepseek-ai/schemastery>@standard-schema/spec': 'file:/usr/local/lib/dsh-mgr/spec-1.1.0.tgz',
-    } },
-    dsh: { profile: { bundles: ['@deepseek-ai/dsh-base', '@deepseek-ai/dsh-web-app', 'dsh-web-mobile', 'dsh-free-search', 'dsh-mgr-workspace'] } },
-  }, null, 2), { flag: 'wx', mode: 0o600 });
-  console.log('dsh-mgr: new web profile includes [email protected] and [email protected]');
-}
-const manifestPath = join(profile, 'package.json');
-const workspacePath = join(profile, 'pnpm-workspace.yaml');
-// Backups omit workspace settings; restore host-provided peers before pnpm runs.
-if (existsSync(manifestPath) && !existsSync(workspacePath)) {
-  const manifest = JSON.parse(readFileSync(manifestPath, 'utf8'));
-  if (manifest.dependencies?.['dsh-web-mobile'] === 'file:/usr/local/lib/dsh-mgr/dsh-web-mobile-3.0.5.tgz' || manifest.dependencies?.['dsh-free-search'] === 'file:/usr/local/lib/dsh-mgr/dsh-free-search-0.8.5.tgz') {
-    writeFileSync(workspacePath, 'packages:\n  - .\n\nnodeLinker: hoisted\nautoInstallPeers: false\n', { flag: 'wx', mode: 0o600 });
+import { mkdirSync, existsSync, writeFileSync, readFileSync, readdirSync } from 'node:fs';
+import { join, resolve } from 'node:path';
+import { pathToFileURL } from 'node:url';
+import { BUILTIN_DEPENDENCIES, BUILTIN_OVERRIDES, assertSafeProfile, reconcileProfile, markLockfilePending } from './reconcile-profile.mjs';
+export function initProfile(home, options) {
+  if (!home) throw new Error('DSH_HOME required');
+  const profile = join(home, 'profiles/web');
+  assertSafeProfile(profile);
+  if (!existsSync(profile) || readdirSync(profile).length === 0) {
+    mkdirSync(profile, { recursive: true });
+    writeFileSync(join(profile, 'package.json'), JSON.stringify({
+      name: 'dsh-profile-web', private: true,
+      dependencies: BUILTIN_DEPENDENCIES,
+      pnpm: { overrides: BUILTIN_OVERRIDES },
+      dsh: { profile: { bundles: ['@deepseek-ai/dsh-base', '@deepseek-ai/dsh-web-app', 'dsh-web-mobile', 'dsh-free-search', 'dsh-mgr-workspace', 'dsh-chat-manager', 'dsh-preview-download'] } },
+    }, null, 2), { flag: 'wx', mode: 0o600 });
+    console.log('dsh-mgr: new web profile includes dsh-web-mobile@3.2.1 and [email protected] and [email protected]');
+  }
+  const migration = reconcileProfile(profile, options);
+  console.log(migration.changed
+    ? "dsh-mgr: builtin profile updated; original saved to " + migration.backupPath
+    : "dsh-mgr: builtin profile check complete; no changes");
+  const manifestPath = join(profile, 'package.json');
+  const workspacePath = join(profile, 'pnpm-workspace.yaml');
+  // Backups omit workspace settings; restore host-provided peers before pnpm runs.
+  if (existsSync(manifestPath) && !existsSync(workspacePath)) {
+    const manifest = JSON.parse(readFileSync(manifestPath, 'utf8'));
+    if (['dependencies', 'devDependencies', 'optionalDependencies'].some(section =>
+      ['dsh-chat-manager', 'dsh-web-mobile', 'dsh-free-search'].some(name => manifest[section]?.[name] === BUILTIN_DEPENDENCIES[name]))) {
+      markLockfilePending(profile);
+      writeFileSync(workspacePath, 'packages:\n  - .\n\nnodeLinker: hoisted\nautoInstallPeers: false\n', { flag: 'wx', mode: 0o600 });
+    }
  }
 }
+
+if (process.argv[1] && import.meta.url === pathToFileURL(resolve(process.argv[1])).href) {
+  initProfile(process.env.DSH_HOME);
+}
@@ -2,33 +2,53 @@ import { test } from 'node:test';
 import assert from 'node:assert/strict';
 import { mkdtempSync, mkdirSync, readFileSync, writeFileSync, rmSync, symlinkSync, existsSync } from 'node:fs';
 import { tmpdir } from 'node:os';
-import { join } from 'node:path';
+import { join, basename } from 'node:path';
 import { execFileSync } from 'node:child_process';
+import { initProfile } from './init-profile.mjs';
+import { BUILTIN_DEPENDENCIES, BUILTIN_OVERRIDES } from './reconcile-profile.mjs';
+function archives(home) {
+  const archiveDirectory = join(home, 'archives');
+  mkdirSync(archiveDirectory, { recursive: true });
+  for (const value of [...Object.values(BUILTIN_DEPENDENCIES), ...Object.values(BUILTIN_OVERRIDES)]) {
+    writeFileSync(join(archiveDirectory, basename(value)), 'fixture');
+  }
+  return { archiveDirectory };
+}
 test('new profile enables bundle once and preserves existing configuration', () => {
  const home = mkdtempSync(join(tmpdir(), 'dsh-plugin-init-'));
  try {
-    const run = () => execFileSync(process.execPath, [new URL('./init-profile.mjs', import.meta.url).pathname], {env:{...process.env, DSH_HOME:home}});
+    const options = archives(home);
+    const run = () => initProfile(home, options);
    run();
    const file=join(home,'profiles/web/package.json');
    const original=readFileSync(file,'utf8');
+    assert.equal(JSON.parse(original).dependencies['dsh-preview-download'], 'file:/usr/local/lib/dsh-mgr/dsh-preview-download-1.0.1.tgz');
+    assert.equal(JSON.parse(original).dsh.profile.bundles.filter(name => name === 'dsh-preview-download').length, 1);
+    assert.ok(JSON.parse(original).dsh.profile.bundles.includes('dsh-chat-manager'));
+    assert.equal(JSON.parse(original).dependencies['dsh-chat-manager'], 'file:/usr/local/lib/dsh-mgr/dsh-chat-manager-1.5.20-dsh-mgr.1.tgz');
+    assert.equal(JSON.parse(original).pnpm.overrides['dsh-chat-manager>clsx'], 'file:/usr/local/lib/dsh-mgr/clsx-2.1.1.tgz');
    assert.ok(JSON.parse(original).dsh.profile.bundles.includes('dsh-web-mobile'));
    assert.ok(JSON.parse(original).dsh.profile.bundles.includes('dsh-free-search'));
    assert.ok(JSON.parse(original).dsh.profile.bundles.includes('dsh-mgr-workspace'));
    assert.equal(JSON.parse(original).dependencies['dsh-mgr-workspace'], 'file:/usr/local/lib/dsh-mgr/dsh-mgr-workspace-1.0.0.tgz');
-    assert.equal(JSON.parse(original).dependencies['dsh-free-search'], 'file:/usr/local/lib/dsh-mgr/dsh-free-search-0.8.5.tgz');
+    assert.equal(JSON.parse(original).dependencies['dsh-free-search'], 'file:/usr/local/lib/dsh-mgr/dsh-free-search-0.9.21.tgz');
    assert.equal(JSON.parse(original).pnpm.overrides['dsh-free-search>@deepseek-ai/schemastery'], 'file:/usr/local/lib/dsh-mgr/schemastery-3.18.4.tgz');
-    assert.equal(JSON.parse(original).dependencies['dsh-web-mobile'], 'file:/usr/local/lib/dsh-mgr/dsh-web-mobile-3.0.5.tgz');
+    assert.equal(JSON.parse(original).dependencies['dsh-web-mobile'], 'file:/usr/local/lib/dsh-mgr/dsh-web-mobile-3.2.1.tgz');
    const workspace = join(home, 'profiles/web/pnpm-workspace.yaml');
    assert.match(readFileSync(workspace, 'utf8'), /autoInstallPeers: false/);
    assert.match(readFileSync(workspace, 'utf8'), /nodeLinker: hoisted/);
    run();assert.equal(readFileSync(file,'utf8'),original);
    const legacy = JSON.parse(original);
    delete legacy.dependencies['dsh-mgr-workspace'];
+    delete legacy.dependencies['dsh-chat-manager'];
+    delete legacy.pnpm.overrides['dsh-chat-manager>clsx'];
+    legacy.dsh.profile.bundles = legacy.dsh.profile.bundles.filter(name => name !== 'dsh-chat-manager');
    legacy.dsh.profile.bundles = legacy.dsh.profile.bundles.filter(name => name !== 'dsh-mgr-workspace');
    writeFileSync(file, JSON.stringify(legacy));
    run();
    assert.deepEqual(JSON.parse(readFileSync(file)), legacy);
    const disabled = JSON.parse(original);
+    disabled.dsh.profile.bundles = disabled.dsh.profile.bundles.filter(name => name !== 'dsh-chat-manager');
    disabled.dsh.profile.bundles = disabled.dsh.profile.bundles.filter(name => name !== 'dsh-web-mobile');
    writeFileSync(file, JSON.stringify(disabled));
    writeFileSync(workspace, 'custom workspace');
@@ -42,13 +62,37 @@ test('new profile enables bundle once and preserves existing configuration', ()
    writeFileSync(file,custom);run();assert.equal(readFileSync(file,'utf8'),custom);
  } finally { rmSync(home,{recursive:true,force:true}); }
 });
+test('chat-manager-only restored profile gets overrides and offline peer settings', () => {
+  const home = mkdtempSync(join(tmpdir(), 'dsh-chat-restore-'));
+  try {
+    const profile = join(home, 'profiles/web');
+    mkdirSync(profile, { recursive: true });
+    const manifest = JSON.stringify({ dependencies: { 'dsh-chat-manager': 'file:/usr/local/lib/dsh-mgr/dsh-chat-manager-1.5.20-dsh-mgr.1.tgz' } });
+    writeFileSync(join(profile, 'package.json'), manifest);
+    initProfile(home, archives(home));
+    assert.deepEqual(JSON.parse(readFileSync(join(profile, 'package.json'))), { ...JSON.parse(manifest), pnpm: { overrides: { 'dsh-chat-manager>clsx': BUILTIN_OVERRIDES['dsh-chat-manager>clsx'] } } });
+    assert.match(readFileSync(join(profile, 'pnpm-workspace.yaml'), 'utf8'), /autoInstallPeers: false/);
+    const entrypoint = readFileSync(new URL('./entrypoint.sh', import.meta.url), 'utf8');
+    const predicate = entrypoint.match(/if node -e '([^']+)'/)[1].replace('/usr/local/lib/dsh-mgr/reconcile-profile.mjs', new URL('./reconcile-profile.mjs', import.meta.url).href);
+    execFileSync(process.execPath, ['-e', predicate], { env: { ...process.env, DSH_HOME: home } });
+    for (const custom of [
+      { dependencies: { 'dsh-chat-manager': BUILTIN_DEPENDENCIES['dsh-chat-manager'] }, pnpm: { overrides: { 'dsh-chat-manager>clsx': '^2.0.0' } } },
+      { dependencies: { 'dsh-chat-manager': '^1.5.16' }, optionalDependencies: { 'dsh-chat-manager': BUILTIN_DEPENDENCIES['dsh-chat-manager'] } },
+    ]) {
+      writeFileSync(join(profile, 'package.json'), JSON.stringify(custom));
+      assert.throws(() => execFileSync(process.execPath, ['-e', predicate], { env: { ...process.env, DSH_HOME: home }, stdio: 'pipe' }));
+    }
+    writeFileSync(join(profile, 'package.json'), JSON.stringify({ dependencies: { 'dsh-chat-manager': '^1.5.16' } }));
+    assert.throws(() => execFileSync(process.execPath, ['-e', predicate], { env: { ...process.env, DSH_HOME: home }, stdio: 'pipe' }));
+  } finally { rmSync(home, { recursive: true, force: true }); }
+});
 test('nonempty legacy profiles are not automatically injected', () => {
  const home = mkdtempSync(join(tmpdir(), 'dsh-plugin-legacy-'));
  try {
    const profile = join(home, 'profiles/web');
    mkdirSync(profile, { recursive: true });
    writeFileSync(join(profile, 'cordis.patch.yml'), '[]');
-    execFileSync(process.execPath, [new URL('./init-profile.mjs', import.meta.url).pathname], { env: { ...process.env, DSH_HOME: home } });
+    initProfile(home, archives(home));
    assert.equal(existsSync(join(profile, 'package.json')), false);
    assert.equal(existsSync(join(profile, 'pnpm-workspace.yaml')), false);
  } finally { rmSync(home, { recursive: true, force: true }); }
@@ -0,0 +1,68 @@
+import { createHash } from 'node:crypto';
+import { mkdirSync, writeFileSync, readFileSync, readdirSync } from 'node:fs';
+import { execFileSync } from 'node:child_process';
+import { createRequire } from 'node:module';
+import { patchClient } from './patch-chat-manager.mjs';
+
+const root = '/usr/local/lib/dsh-mgr';
+const version = '1.5.20';
+const patchedVersion = '1.5.20-dsh-mgr.1';
+const hostManifest = '/usr/local/lib/node_modules/@deepseek-ai/dsh/package.json';
+const destination = '/usr/local/lib/node_modules/@deepseek-ai/dsh/node_modules/dsh-chat-manager';
+const packages = [
+  ['dsh-chat-manager', version, 'https://registry.npmjs.org/dsh-chat-manager/-/dsh-chat-manager-1.5.20.tgz', 'V/7N48lJioxBr2h+hmVnNoZB5jjoT/EGC6Pk8pSbNJveQoHye+zBj3tUX1Xf520YyopVk5fSVpt+aeCkBBVxdA=='],
+  ['clsx', '2.1.1', 'https://registry.npmjs.org/clsx/-/clsx-2.1.1.tgz', 'eYm0QWBtUrBWZWG0d386OGAw16Z995PiOVo2B7bjWSbHedGl5e0ZWaq65kOGgUSNesEIDkB9ISbTg/JK9dhCZA=='],
+];
+mkdirSync(root, { recursive: true });
+for (const [name, release, url, integrity] of packages) {
+  const response = await fetch(url, { signal: AbortSignal.timeout(120000) });
+  if (!response.ok) throw new Error('download failed: ' + name);
+  const data = Buffer.from(await response.arrayBuffer());
+  if (createHash('sha512').update(data).digest('base64') !== integrity) throw new Error('integrity mismatch: ' + name);
+  writeFileSync(`${root}/${name}-${release}.tgz`, data, { mode: 0o644 });
+}
+mkdirSync(destination, { recursive: true });
+execFileSync('tar', ['-xzf', `${root}/dsh-chat-manager-${version}.tgz`, '--strip-components=1', '--no-same-owner', '-C', destination]);
+const pkg = JSON.parse(readFileSync(destination + '/package.json'));
+if (pkg.name !== 'dsh-chat-manager' || pkg.version !== version || pkg.license !== 'MIT' || JSON.stringify(pkg.dependencies) !== JSON.stringify({ clsx: '^2.0.0' })) throw new Error('unexpected chat-manager metadata');
+if (!readFileSync(destination + '/LICENSE', 'utf8').includes('MIT License')) throw new Error('missing chat-manager MIT license');
+const require = createRequire(hostManifest);
+const host = JSON.parse(readFileSync(hostManifest));
+const semver = createRequire('/usr/local/lib/node_modules/npm/package.json')('semver');
+for (const [name, range] of Object.entries(pkg.peerDependencies || {})) {
+  // 1.5.20 retains this optional legacy peer but its runtime no longer imports it.
+  if (name === '@deepseek-ai/dsh-invariants' && pkg.peerDependenciesMeta?.[name]?.optional) {
+    for (const file of ['src/index.js', 'src/host/archive-manager.mjs', 'src/host/delete-session.mjs', 'lib/client.js']) {
+      if (readFileSync(destination + '/' + file, 'utf8').includes(name)) throw new Error('legacy invariants peer is used again');
+    }
+    continue;
+  }
+  if (name === 'react') {
+    if (host.version !== '0.2.1-rc.5') throw new Error('unverified browser React host: ' + host.version);
+    continue;
+  }
+  // New web hosts bundle this pure UI module in the browser bootstrap.
+  if (['@deepseek-ai/dsh-client-ui-primitives', '@deepseek-ai/dsh-client-ui-slots'].includes(name) && host.version === '0.2.1-rc.5') {
+    const frontend = require.resolve('@deepseek-ai/dsh-web-frontend/package.json');
+    const assets = frontend.slice(0, -'package.json'.length) + 'dist/assets';
+    const frontendVersion = JSON.parse(readFileSync(frontend)).version;
+    if (frontendVersion !== host.version || !semver.satisfies(frontendVersion, range) || !readdirSync(assets).filter(file => /^index-.*\.js$/.test(file)).some(file => readFileSync(assets + '/' + file, 'utf8').includes(JSON.stringify(name) + ':'))) throw new Error('missing browser UI provider');
+    continue;
+  }
+  const peer = require(name + '/package.json');
+  if (!semver.satisfies(peer.version, range)) throw new Error('incompatible chat-manager host dependency: ' + name + '@' + peer.version);
+}
+const client = destination + '/lib/client.js';
+writeFileSync(client, patchClient(readFileSync(client, 'utf8'), version));
+pkg.version = patchedVersion;
+writeFileSync(destination + '/package.json', JSON.stringify(pkg, null, 2));
+execFileSync('chmod', ['-R', 'a+rX', destination]);
+execFileSync('tar', ['-czf', `${root}/dsh-chat-manager-${patchedVersion}.tgz`, '--transform=s,^dsh-chat-manager,package,', '-C', destination + '/..', 'dsh-chat-manager']);
+execFileSync('chmod', ['644', `${root}/dsh-chat-manager-${patchedVersion}.tgz`]);
+const clsx = destination + '/node_modules/clsx';
+mkdirSync(clsx, { recursive: true });
+execFileSync('tar', ['-xzf', `${root}/clsx-2.1.1.tgz`, '--strip-components=1', '--no-same-owner', '-C', clsx]);
+execFileSync('chmod', ['-R', 'a+rX', clsx]);
+host.dependencies = { ...host.dependencies, 'dsh-chat-manager': patchedVersion };
+writeFileSync(hostManifest, JSON.stringify(host, null, 2));
+console.log('Installed dsh-chat-manager@' + patchedVersion + ' and [email protected] (SHA-512 verified; no lifecycle scripts; MIT retained)');
@@ -4,7 +4,7 @@ import { execFileSync } from 'node:child_process';
 import { createRequire } from 'node:module';
 const root = '/usr/local/lib/dsh-mgr';
 const packages = [
-  ['dsh-free-search', '0.8.5', 'https://registry.npmjs.org/dsh-free-search/-/dsh-free-search-0.8.5.tgz', 'MT00Xtypw9uk9QsqaiRmtVbYwnPON+HJY1lZjYritEvuwSe9ahgG9NVO43lUI+Eje2umrqUapaeqLRYf34DrZw=='],
+  ['dsh-free-search', '0.9.21', 'https://registry.npmjs.org/dsh-free-search/-/dsh-free-search-0.9.21.tgz', '3RtN+hphVn5WcqjbwPBkG+QGgz7YO6KtkAKQFmWmsVl3lmDEhLENuno95JheKahllt0IXCLFCTHsI2HSzttg4g=='],
  ['@deepseek-ai/schemastery', '3.18.4', 'https://registry.npmjs.org/@deepseek-ai/schemastery/-/schemastery-3.18.4.tgz', 'SSXO6tYuyrIqKVbmOnIq0s+riUywYzouFMcnBluHF9n4KMo2G8HvEzhCYj6pj2617/glOjbJuVInJ9hfONsjkg=='],
  ['@deepseek-ai/cosmokit', '1.8.5', 'https://registry.npmjs.org/@deepseek-ai/cosmokit/-/cosmokit-1.8.5.tgz', 'LXsrlem9z8dq4sLflj2yuCuYX7KqhdzF5hZly3eZyuTo8d6oDSOXuEgC5DbQWKW+lksm6zmOutQLsP/ma6wR6A=='],
  ['@standard-schema/spec', '1.1.0', 'https://registry.npmjs.org/@standard-schema/spec/-/spec-1.1.0.tgz', 'l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w=='],
@@ -20,21 +20,21 @@ for (const [name, version, url, integrity] of packages) {
 const hostManifest = '/usr/local/lib/node_modules/@deepseek-ai/dsh/package.json';
 const destination = '/usr/local/lib/node_modules/@deepseek-ai/dsh/node_modules/dsh-free-search';
 mkdirSync(destination, { recursive: true });
-execFileSync('tar', ['-xzf', `${root}/dsh-free-search-0.8.5.tgz`, '--strip-components=1', '--no-same-owner', '-C', destination]);
+execFileSync('tar', ['-xzf', `${root}/dsh-free-search-0.9.21.tgz`, '--strip-components=1', '--no-same-owner', '-C', destination]);
 execFileSync('chmod', ['-R', 'a+rX', destination]);
 const pkg = JSON.parse(readFileSync(destination + '/package.json'));
-if (pkg.name !== 'dsh-free-search' || pkg.version !== '0.8.5' || JSON.stringify(pkg.dependencies) !== JSON.stringify({ '@deepseek-ai/schemastery': '^3.18.4' })) throw new Error('unexpected free-search metadata');
+if (pkg.name !== 'dsh-free-search' || pkg.version !== '0.9.21' || JSON.stringify(pkg.dependencies) !== JSON.stringify({ '@deepseek-ai/schemastery': '^3.18.4' })) throw new Error('unexpected free-search metadata');
 const require = createRequire(hostManifest);
 const semver = createRequire('/usr/local/lib/node_modules/npm/package.json')('semver');
 for (const [name, range] of Object.entries({ ...pkg.peerDependencies, ...pkg.dependencies })) {
  if (name === 'react') {
-    if (!['0.2.0-rc.1', '0.2.0-rc.2'].includes(require('./package.json').version)) throw new Error('unverified browser React host');
+    if (require('./package.json').version !== '0.2.1-rc.5') throw new Error('unverified browser React host');
    continue;
  }
  const peer = require(name + '/package.json');
-  if (!semver.satisfies(peer.version, range)) throw new Error('incompatible free-search host dependency: ' + name);
+  if (!(semver.satisfies(peer.version, range) || (peer.version === "0.2.1-rc.5" && name.startsWith("@deepseek-ai/dsh-") && semver.satisfies(peer.version, range, { includePrerelease: true })))) throw new Error('incompatible free-search host dependency: ' + name);
 }
 const host = JSON.parse(readFileSync(hostManifest));
-host.dependencies = { ...host.dependencies, 'dsh-free-search': '0.8.5' };
+host.dependencies = { ...host.dependencies, 'dsh-free-search': '0.9.21' };
 writeFileSync(hostManifest, JSON.stringify(host, null, 2));
-console.log('Installed dsh-free-search@0.8.5 and pinned offline dependency archives (SHA-512 verified; no lifecycle scripts)');
+console.log('Installed dsh-free-search@0.9.21 and pinned offline dependency archives (SHA-512 verified; no lifecycle scripts)');
@@ -0,0 +1,32 @@
+import { readFileSync, writeFileSync } from 'node:fs';
+import { join, resolve } from 'node:path';
+import { pathToFileURL } from 'node:url';
+
+export const target = 'const persistence = ctx.remote.$host.isLoopback ? "host" : "memory";';
+const replacement = 'const persistence = "host"; /* dsh-mgr: authenticated remote settings */';
+
+// Deliberately scoped to the settings UI, not connection.isLoopback or auth.
+// Fail closed on upstream changes instead of silently shipping a broken UI.
+export function patchSettings(source, version) {
+  // Native host settings supersede the old persistence patch.
+  if (version === "0.2.1-rc.5") {
+    if (source.includes(target) || !source.includes("this.ctx.remote.settings.describe()") || !source.includes("this.ctx.remote.settings.mutate(")) throw new Error("expected native host settings API");
+    return source;
+  }
+  if (version !== '0.2.0-rc.2') throw new Error('unsupported DSH version for host settings patch');
+  if (source.split(target).length !== 2 || source.includes(replacement)) {
+    throw new Error('expected exactly one unpatched settings persistence selector');
+  }
+  return source.replace(target, replacement);
+}
+
+export function install(root = '/usr/local/lib/node_modules/@deepseek-ai/dsh') {
+  const { version } = JSON.parse(readFileSync(join(root, 'package.json'), 'utf8'));
+  const file = join(root, 'node_modules/@deepseek-ai/dsh-client-ui-settings/lib/client.js');
+  const source = readFileSync(file, 'utf8');
+  writeFileSync(file, patchSettings(source, version));
+}
+
+if (process.argv[1] && import.meta.url === pathToFileURL(resolve(process.argv[1])).href) {
+  install();
+}
@@ -0,0 +1,39 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { runInNewContext } from 'node:vm';
+import { readFileSync } from 'node:fs';
+import { patchSettings, target } from './install-host-settings.mjs';
+
+test("next host settings API remains unchanged", () => {
+  const source = "this.ctx.remote.settings.describe(); this.ctx.remote.settings.mutate(namespace, ops, revision);";
+  assert.equal(patchSettings(source, "0.2.1-rc.5"), source);
+  assert.throws(() => patchSettings(target, "0.2.1-rc.5"), /native host settings/);
+  assert.throws(() => patchSettings("", "0.2.1-rc.5"), /native host settings/);
+});
+
+test('settings use host persistence on domains without changing loopback facts', () => {
+  for (const isLoopback of [false, true]) {
+    const ctx = { remote: { $host: { isLoopback } } };
+    const source = '(function(ctx) { ' + target + ' return persistence; })(ctx)';
+    assert.equal(runInNewContext(patchSettings(source, '0.2.0-rc.2'), { ctx }), 'host');
+    assert.equal(ctx.remote.$host.isLoopback, isLoopback);
+  }
+});
+
+test('reject unsupported versions, changed selectors, duplicates and repeat installation', () => {
+  assert.throws(() => patchSettings(target, '0.2.0-rc.3'), /unsupported DSH version/);
+  for (const source of ['', target.replace('isLoopback', 'isLocal'), target + target,
+    patchSettings(target, '0.2.0-rc.2')]) {
+    assert.throws(() => patchSettings(source, '0.2.0-rc.2'), /exactly one/);
+  }
+});
+
+test('patch leaves surrounding code unchanged and is wired into the image', () => {
+  const source = 'before; ' + target + ' after;';
+  const result = patchSettings(source, '0.2.0-rc.2');
+  assert.ok(result.startsWith('before; '));
+  assert.ok(result.endsWith(' after;'));
+  const dockerfile = readFileSync(new URL('./Dockerfile', import.meta.url), 'utf8');
+  assert.ok(dockerfile.includes('COPY install-host-settings.mjs /usr/local/lib/dsh-mgr/install-host-settings.mjs'));
+  assert.ok(dockerfile.indexOf('RUN node /usr/local/lib/dsh-mgr/install-host-settings.mjs') > dockerfile.indexOf('npm install --global --foreground-scripts'));
+});
@@ -0,0 +1,29 @@
+import { createHash } from 'node:crypto';
+import { writeFileSync, mkdirSync } from 'node:fs';
+import { join } from 'node:path';
+import { execFileSync } from 'node:child_process';
+
+// Third-party mirror, pinned to a reviewed commit; Xiaomi's font license applies.
+const base = 'https://raw.githubusercontent.com/boyan01/mi_sans_font/68f3ec3fee5830ce8a1d955d462fa0df401a5341/lib/fonts/';
+const fonts = [
+  ['MiSans-Regular.ttf', '7172aa1b5c703780ee12df3fe4c50481dde01f3b125a045a398000a88d032ae5', 'Regular'],
+  ['MiSans-Bold.ttf', '250fb5c8d4657f103e332b0b948a995e45f2c159beb8d0528424e2d32ae421be', 'Bold'],
+];
+const destination = '/usr/local/share/fonts/misans';
+mkdirSync(destination, { recursive: true });
+for (const [name, sha256] of fonts) {
+  console.log('Downloading ' + name);
+  const response = await fetch(base + name, { signal: AbortSignal.timeout(120000) });
+  if (!response.ok) throw new Error('MiSans download failed: ' + name + ' HTTP ' + response.status);
+  const font = Buffer.from(await response.arrayBuffer());
+  if (createHash('sha256').update(font).digest('hex') !== sha256) {
+    throw new Error('MiSans checksum mismatch: ' + name);
+  }
+  writeFileSync(join(destination, name), font, { mode: 0o644 });
+}
+execFileSync('fc-cache', ['-f', destination], { stdio: 'inherit' });
+for (const [name, , style] of fonts) {
+  const file = execFileSync('fc-match', ['-f', '%{file}', 'MiSans:style=' + style], { encoding: 'utf8' });
+  if (file !== join(destination, name)) throw new Error('MiSans font lookup failed: ' + style + ': ' + file);
+}
+console.log('Installed MiSans Regular and Bold (SHA-256 verified)');
@@ -2,15 +2,15 @@ import { createHash } from 'node:crypto';
 import { mkdirSync, writeFileSync, readFileSync } from 'node:fs';
 import { execFileSync } from 'node:child_process';
 import { createRequire } from 'node:module';
-const version = '3.0.5';
-const integrity = 'N3wmegFHSd23J0+xjotKyBq0ZbLXUbkWZ65E+aSw5pzB/nudhaNHWT2V3CSNaW/LX3s6AxAWB2APpfA0dLXJZQ==';
-const response = await fetch('https://registry.npmjs.org/dsh-web-mobile/-/dsh-web-mobile-3.0.5.tgz', { signal: AbortSignal.timeout(120000) });
+const version = '3.2.1';
+const integrity = '2XHbebwr78ujeJVt3wqffSp7/LEnLqUajawnL0TWNGG6LcAimAm8q8GJdh28c7gdRs6BYAGxfF/TatA5E6xZ+A==';
+const response = await fetch('https://registry.npmjs.org/dsh-web-mobile/-/dsh-web-mobile-3.2.1.tgz', { signal: AbortSignal.timeout(120000) });
 if (!response.ok) throw new Error('mobile plugin download failed');
 const data = Buffer.from(await response.arrayBuffer());
 if (createHash('sha512').update(data).digest('base64') !== integrity) throw new Error('mobile plugin integrity mismatch');
 const destination = '/usr/local/lib/node_modules/@deepseek-ai/dsh/node_modules/dsh-web-mobile';
 mkdirSync(destination, { recursive: true });
-const archive = '/usr/local/lib/dsh-mgr/dsh-web-mobile-3.0.5.tgz';
+const archive = '/usr/local/lib/dsh-mgr/dsh-web-mobile-3.2.1.tgz';
 writeFileSync(archive, data, { mode: 0o644 });
 execFileSync('tar', ['-xzf', archive, '--strip-components=1', '--no-same-owner', '-C', destination]);
 // Published tar modes can be owner-only; runtime is UID 1000, not build root.
@@ -24,7 +24,7 @@ for (const [name, range] of Object.entries(pkg.peerDependencies || {})) {
  // Limit that exception to the upstream-declared, tested RC hosts.
  if (name === 'react') {
    const host = require('./package.json').version;
-    if (!['0.2.0-rc.1', '0.2.0-rc.2'].includes(host)) throw new Error('unverified browser React host: ' + host);
+    if (host !== '0.2.1-rc.5') throw new Error('unverified browser React host: ' + host);
    continue;
  }
  let peer;
@@ -33,7 +33,7 @@ for (const [name, range] of Object.entries(pkg.peerDependencies || {})) {
    if (pkg.peerDependenciesMeta?.[name]?.optional) continue;
    throw new Error('missing required mobile peer: ' + name);
  }
-  if (!semver.satisfies(peer.version, range)) throw new Error('incompatible mobile peer: ' + name + '@' + peer.version);
+  if (!(semver.satisfies(peer.version, range) || (peer.version === "0.2.1-rc.5" && name.startsWith("@deepseek-ai/dsh-") && semver.satisfies(peer.version, range, { includePrerelease: true })))) throw new Error('incompatible mobile peer: ' + name + '@' + peer.version);
 }
 // DSH runtime resolution traverses the installation manifest, not arbitrary
 // directories in node_modules. Declare the baked package in that graph.
@@ -41,4 +41,4 @@ const hostManifest = '/usr/local/lib/node_modules/@deepseek-ai/dsh/package.json'
 const host = JSON.parse(readFileSync(hostManifest));
 host.dependencies = { ...host.dependencies, 'dsh-web-mobile': version };
 writeFileSync(hostManifest, JSON.stringify(host, null, 2));
-console.log('Installed dsh-web-mobile@3.0.5 (SHA-512 verified; no lifecycle scripts)');
+console.log('Installed dsh-web-mobile@3.2.1 (SHA-512 verified; no lifecycle scripts)');
@@ -0,0 +1,21 @@
+import { readFileSync, writeFileSync, copyFileSync } from 'node:fs';
+import { join, resolve } from 'node:path';
+import { pathToFileURL } from 'node:url';
+
+export const target = 'import { createConverter } from "@deepseek-ai/libreoffice-kit";';
+export function patchOffice(source, hostVersion, packageVersion) {
+  if (hostVersion !== '0.2.1-rc.5' || packageVersion !== '0.2.1-rc.5') throw new Error('unsupported Office preview version');
+  if (source.split(target).length !== 2) throw new Error('expected exactly one original converter import');
+  return source.replace(target, 'import { createConverter } from "./dsh-native-office.mjs";');
+}
+export function install(root = '/usr/local/lib/node_modules/@deepseek-ai/dsh') {
+  const dir = join(root, 'node_modules/@deepseek-ai/dsh-office-to-pdf');
+  const version = path => JSON.parse(readFileSync(join(path, 'package.json'), 'utf8')).version;
+  const file = join(dir, 'lib/index.js');
+  const patched = patchOffice(readFileSync(file, 'utf8'), version(root), version(dir));
+  for (const [source, name] of [['native-office.mjs', 'dsh-native-office.mjs'], ['validate-office.py', 'validate-office.py'], ['office-worker.py', 'office-worker.py']]) {
+    copyFileSync(new URL(source, import.meta.url), join(dir, 'lib', name));
+  }
+  writeFileSync(file, patched);
+}
+if (process.argv[1] && import.meta.url === pathToFileURL(resolve(process.argv[1])).href) install();
@@ -0,0 +1,8 @@
+import { cpSync, mkdirSync, readFileSync } from 'node:fs';
+import { execFileSync } from 'node:child_process';
+const root = '/usr/local/lib/dsh-mgr';
+const host = JSON.parse(readFileSync('/usr/local/lib/node_modules/@deepseek-ai/dsh/package.json'));
+if (host.version !== '0.2.1-rc.5') throw new Error('Unverified preview download host');
+mkdirSync(root + '/preview-download-package', { recursive: true });
+cpSync(new URL('./preview-download', import.meta.url), root + '/preview-download-package/package', { recursive: true });
+execFileSync('tar', ['-czf', root + '/dsh-preview-download-1.0.1.tgz', '-C', root + '/preview-download-package', 'package']);
@@ -0,0 +1,25 @@
+// Local Docker integration: no published ports or existing workspaces are used.
+import assert from 'node:assert/strict';
+import { execFileSync } from 'node:child_process';
+import { fileURLToPath } from 'node:url';
+import { randomUUID } from 'node:crypto';
+const oldImage = process.env.DSH_OLD_IMAGE || 'dsh-web:runtime-7.10-amd64';
+const newImage = process.env.DSH_NEW_IMAGE || 'dsh-web:runtime-7.11-amd64';
+const volume = `dsh-lockfile-smoke-${randomUUID()}`;
+const docker = args => execFileSync('docker', args, { encoding: 'utf8', timeout: 180000, maxBuffer: 8 * 1024 * 1024 });
+const run = (image, args, mounts = []) => docker(['run', '--rm', '--network', 'none', '-v', `${volume}:/workspace`, ...mounts, '--entrypoint', 'bash', image, '-ec', args]);
+docker(['volume', 'create', volume]);
+try {
+  run(oldImage, 'node /usr/local/lib/dsh-mgr/init-profile.mjs; CI=true npm_config_offline=true dsh plugin --profile web install --ignore-scripts; test -s /workspace/profiles/web/pnpm-lock.yaml');
+  const mounts = ['init-profile.mjs', 'reconcile-profile.mjs'].flatMap(name => ['-v', `${fileURLToPath(new URL(name, import.meta.url))}:/usr/local/lib/dsh-mgr/${name}:ro`]);
+  mounts.push('-v', `${fileURLToPath(new URL('entrypoint.sh', import.meta.url))}:/usr/local/bin/dsh-entrypoint:ro`);
+  const output = run(newImage, 'bash /usr/local/bin/dsh-entrypoint --version; test ! -e /workspace/profiles/web/.dsh-lockfile-pending; CI=true npm_config_offline=true dsh plugin --profile web install --ignore-scripts', mounts);
+  assert.doesNotMatch(output, /ERR_PNPM_OUTDATED_LOCKFILE/);
+  const again = run(newImage, 'sha256sum /workspace/profiles/web/pnpm-lock.yaml; bash /usr/local/bin/dsh-entrypoint --version; sha256sum /workspace/profiles/web/pnpm-lock.yaml', mounts);
+  const hashes = again.match(/^[a-f0-9]{64}  .*pnpm-lock.yaml$/gm);
+  assert.equal(hashes?.length, 2, again);
+  assert.equal(hashes[0], hashes[1]);
+  console.log(`PASS: ${oldImage} → ${newImage} migration, frozen reinstall, unchanged lockfile on restart`);
+} finally {
+  docker(['volume', 'rm', volume]);
+}
@@ -0,0 +1,119 @@
+import { spawn } from 'node:child_process';
+import { constants } from 'node:fs';
+import { open, mkdir, mkdtemp, rm, writeFile } from 'node:fs/promises';
+import { tmpdir } from 'node:os';
+import { join, extname, isAbsolute } from 'node:path';
+import { pathToFileURL, fileURLToPath } from 'node:url';
+
+const failure = (code, message) => Object.assign(new Error(message), { code });
+
+// No shell; terminate the whole group, including soffice.bin, on cancellation.
+export function runProcess(executable, args, signal, env = process.env) {
+  signal.throwIfAborted();
+  return new Promise((resolve, reject) => {
+    const child = spawn(executable, args, { detached: true, stdio: 'ignore', env });
+    let error;
+    const kill = () => {
+      if (child.pid) {
+        try { process.kill(-child.pid, 'SIGKILL'); }
+        catch (cause) { if (cause.code !== 'ESRCH') error ??= cause; }
+      }
+    };
+    const abort = () => { error = signal.reason; kill(); };
+    signal.addEventListener('abort', abort, { once: true });
+    if (signal.aborted) abort();
+    child.once('error', cause => { error ??= failure('unavailable', 'Cannot start helper: ' + cause.code); });
+    child.once('close', code => {
+      signal.removeEventListener('abort', abort);
+      kill();
+      if (error) reject(error);
+      else if (code !== 0) reject(failure('invalid-document', 'Conversion helper exit: ' + code));
+      else resolve();
+    });
+  });
+}
+
+async function readBounded(path, maximum, kind, signal) {
+  const file = await open(path, constants.O_RDONLY | constants.O_NOFOLLOW | constants.O_NONBLOCK);
+  try {
+    const stat = await file.stat();
+    if (!stat.isFile()) throw failure('invalid-' + (kind === 'input' ? 'document' : 'output'), 'Regular file required');
+    if (stat.size > maximum) throw failure(kind + '-too-large', 'File exceeds limit');
+    const bytes = Buffer.alloc(stat.size + 1);
+    let length = 0;
+    while (length < bytes.length) {
+      signal.throwIfAborted();
+      const read = await file.read(bytes, length, bytes.length - length, null);
+      if (!read.bytesRead) break;
+      length += read.bytesRead;
+    }
+    if (length !== stat.size) throw failure('invalid-' + (kind === 'input' ? 'document' : 'output'), 'File changed');
+    return bytes.subarray(0, length);
+  } finally { await file.close(); }
+}
+
+export async function createConverter(options = {}) {
+  if (process.platform !== 'linux') throw failure('unavailable', 'Native preview requires Linux');
+  if (options.fontDirectories !== undefined || options.fontFallbacks !== undefined) {
+    throw failure('unavailable', 'Native preview uses system fonts; remove kit-only font overrides');
+  }
+  const lifetime = new AbortController();
+  const active = new Set();
+  const limits = { timeoutMs: 60000, maxInputBytes: 50 * 1024 ** 2, maxOutputBytes: 100 * 1024 ** 2, maxArchiveEntries: 10000, maxUncompressedBytes: 250 * 1024 ** 2, maxImageResolution: 192, ...options };
+  for (const key of ['timeoutMs', 'maxInputBytes', 'maxOutputBytes', 'maxArchiveEntries', 'maxUncompressedBytes', 'maxImageResolution']) {
+    if (!Number.isSafeInteger(limits[key]) || limits[key] < 1) throw new TypeError('Invalid ' + key);
+  }
+  async function render({ inputPath, outputPath }, external = new AbortController().signal) {
+    const deadline = new AbortController();
+    const signal = AbortSignal.any([external, lifetime.signal, deadline.signal]);
+    const timer = setTimeout(() => deadline.abort(failure('timeout', 'Native Office conversion timed out')), limits.timeoutMs);
+    let scratch;
+    let output;
+    let success = false;
+    try {
+      signal.throwIfAborted();
+      const extension = extname(inputPath).slice(1).toLowerCase();
+      if (!['doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx'].includes(extension)) throw failure('unsupported-format', 'Unsupported Office extension');
+      if (!isAbsolute(inputPath) || !isAbsolute(outputPath)) throw failure('invalid-document', 'Absolute paths required');
+      output = await open(outputPath, 'wx', 0o600);
+      scratch = await mkdtemp(join(tmpdir(), 'dsh-native-office-'));
+      const source = join(scratch, 'source.' + extension);
+      await writeFile(source, await readBounded(inputPath, limits.maxInputBytes, 'input', signal), { flag: 'wx', mode: 0o600, signal });
+      const launcher = fileURLToPath(new URL('./office-worker.py', import.meta.url));
+      const env = { PATH: '/usr/bin:/bin', LANG: 'C.UTF-8', HOME: scratch, TMPDIR: scratch, SAL_USE_VCLPLUGIN: 'svp', SAL_DISABLE_PRINTERLIST: '1', SAL_DISABLE_DEFAULTPRINTER: '1' };
+      await runProcess('/usr/bin/python3', ['-I', launcher, String(512 * 1024 ** 2), String(limits.maxOutputBytes), '/usr/bin/python3', '-I', fileURLToPath(new URL('./validate-office.py', import.meta.url)), source, extension, String(limits.maxArchiveEntries), String(limits.maxUncompressedBytes)], signal, env);
+      const profile = join(scratch, 'profile');
+      await mkdir(join(profile, 'user'), { recursive: true, mode: 0o700 });
+      await writeFile(join(profile, 'user/registrymodifications.xcu'), '<?xml version="1.0"?><oor:items xmlns:oor="http://openoffice.org/2001/registry"><item oor:path="/org.openoffice.Office.Common/Security/Scripting"><prop oor:name="MacroSecurityLevel" oor:op="fuse"><value>3</value></prop></item></oor:items>');
+      const filter = extension.startsWith('ppt') ? 'impress_pdf_Export' : extension.startsWith('xls') ? 'calc_pdf_Export' : 'writer_pdf_Export';
+      const pdfOptions = JSON.stringify({ ReduceImageResolution: { type: 'boolean', value: 'true' }, MaxImageResolution: { type: 'long', value: String(limits.maxImageResolution) } });
+      await runProcess('/usr/bin/python3', ['-I', launcher, String(2 * 1024 ** 3), String(Math.max(limits.maxOutputBytes, 16 * 1024 ** 2)), '/usr/bin/libreoffice', '-env:UserInstallation=' + pathToFileURL(profile).href, '--headless', '--nologo', '--nodefault', '--nofirststartwizard', '--convert-to', 'pdf:' + filter + ':' + pdfOptions, '--outdir', scratch, source], signal, env);
+      let bytes;
+      try { bytes = await readBounded(join(scratch, 'source.pdf'), limits.maxOutputBytes, 'output', signal); }
+      catch (cause) { if (cause.code === 'ENOENT') throw failure('invalid-output', 'LibreOffice produced no PDF'); throw cause; }
+      if (!/^%PDF-[0-9][.][0-9]/.test(bytes.subarray(0, 8).toString()) || !bytes.subarray(-1024).toString().trimEnd().endsWith('%%EOF')) throw failure('invalid-output', 'Incomplete PDF');
+      signal.throwIfAborted();
+      await output.writeFile(bytes);
+      signal.throwIfAborted();
+      success = true;
+      // System LibreOffice has no kit missing-font diagnostic API.
+      return { backend: 'native-system', missingFonts: [] };
+    } finally {
+      clearTimeout(timer);
+      try { await output?.close(); }
+      finally {
+        try { if (output && !success) await rm(outputPath, { force: true }); }
+        finally { if (scratch) await rm(scratch, { recursive: true, force: true }); }
+      }
+    }
+  }
+  return {
+    render(request, signal) {
+      const task = render(request, signal);
+      active.add(task);
+      task.then(() => active.delete(task), () => active.delete(task));
+      return task;
+    },
+    async dispose() { lifetime.abort(failure('unavailable', 'Converter disposed')); await Promise.allSettled([...active]); }
+  };
+}
@@ -0,0 +1,50 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { mkdtemp, writeFile, readFile, rm, access } from 'node:fs/promises';
+import { tmpdir } from 'node:os';
+import { join } from 'node:path';
+import { createConverter, runProcess } from './native-office.mjs';
+import { patchOffice, target } from './install-office-preview.mjs';
+
+test('patch is exact, version gated and refuses repeat application', () => {
+  const patched = patchOffice(target, '0.2.1-rc.5', '0.2.1-rc.5');
+  assert.match(patched, /dsh-native-office/);
+  for (const source of ['', target + target, patched]) assert.throws(() => patchOffice(source, '0.2.1-rc.5', '0.2.1-rc.5'));
+  assert.throws(() => patchOffice(target, 'next', '0.2.1-rc.5'));
+  assert.throws(() => patchOffice(target, '0.2.1-rc.5', 'next'));
+});
+
+test('process cancellation, missing binary and failure are classified', async () => {
+  const signal = new AbortController().signal;
+  await assert.rejects(runProcess('/not-an-office-binary', [], signal), { code: 'unavailable' });
+  await assert.rejects(runProcess(process.execPath, ['-e', 'process.exit(2)'], signal), { code: 'invalid-document' });
+  const controller = new AbortController();
+  const reason = new Error('cancel test');
+  const pending = runProcess(process.execPath, ['-e', 'setInterval(() => {}, 1000)'], controller.signal);
+  controller.abort(reason);
+  await assert.rejects(pending, error => error === reason);
+});
+
+test('input bounds, corruption, exclusive output, abort and disposal', async () => {
+  const directory = await mkdtemp(join(tmpdir(), 'office-test-'));
+  const inputPath = join(directory, 'source.docx');
+  const outputPath = join(directory, 'output.pdf');
+  const converter = await createConverter();
+  try {
+    await writeFile(inputPath, 'invalid');
+    await assert.rejects(converter.render({ inputPath, outputPath }), { code: 'invalid-document' });
+    await assert.rejects(access(outputPath));
+    const small = await createConverter({ maxInputBytes: 1 });
+    await assert.rejects(small.render({ inputPath, outputPath }), { code: 'input-too-large' });
+    await small.dispose();
+    await writeFile(outputPath, 'preserve');
+    await assert.rejects(converter.render({ inputPath, outputPath }), { code: 'EEXIST' });
+    assert.equal(await readFile(outputPath, 'utf8'), 'preserve');
+    const controller = new AbortController();
+    controller.abort(new Error('cancelled'));
+    await assert.rejects(converter.render({ inputPath, outputPath }, controller.signal), /cancelled/);
+    await converter.dispose();
+    await assert.rejects(converter.render({ inputPath, outputPath }), { code: 'unavailable' });
+    await assert.rejects(createConverter({ fontDirectories: [] }), { code: 'unavailable' });
+  } finally { await converter.dispose(); await rm(directory, { recursive: true, force: true }); }
+});
@@ -0,0 +1,47 @@
+// Run inside the built image as UID 1000. No downloads or fixture dependencies.
+import assert from 'node:assert/strict';
+import { mkdtemp, writeFile, readFile, rm, readdir } from 'node:fs/promises';
+import { join } from 'node:path';
+import { tmpdir } from 'node:os';
+import { pathToFileURL } from 'node:url';
+import { runProcess } from './native-office.mjs';
+const installed = '/usr/local/lib/node_modules/@deepseek-ai/dsh/node_modules/@deepseek-ai/dsh-office-to-pdf/lib/';
+const { createConverter } = await import(installed + 'dsh-native-office.mjs');
+const { OfficeToPdf } = await import(installed + 'index.js');
+
+assert.notEqual(process.getuid(), 0, 'smoke test must run as non-root');
+const dir = await mkdtemp(join(tmpdir(), 'office-smoke-'));
+const signal = new AbortController().signal;
+const ns = 'xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0"';
+const converter = await createConverter();
+try {
+  await writeFile(join(dir, 'word.fodt'), '<?xml version="1.0"?><office:document ' + ns + ' office:version="1.2" office:mimetype="application/vnd.oasis.opendocument.text"><office:body><office:text><text:p>中文预览 Word conversion test</text:p></office:text></office:body></office:document>');
+  await writeFile(join(dir, 'slides.fodp'), '<?xml version="1.0"?><office:document ' + ns + ' office:version="1.2" office:mimetype="application/vnd.oasis.opendocument.presentation"><office:body><office:presentation><draw:page draw:name="slide1"><draw:frame svg:x="2cm" svg:y="2cm" svg:width="20cm" svg:height="5cm"><draw:text-box><text:p>中文预览 PPT conversion test</text:p></draw:text-box></draw:frame></draw:page></office:presentation></office:body></office:document>');
+  for (const [source, format] of [['word.fodt', 'docx'], ['slides.fodp', 'pptx'], ['word.fodt', 'doc'], ['slides.fodp', 'ppt']]) {
+    await runProcess('/usr/bin/libreoffice', ['-env:UserInstallation=' + pathToFileURL(join(dir, 'fixture-profile')).href, '--headless', '--convert-to', format, '--outdir', dir, join(dir, source)], signal);
+  }
+  await Promise.all(['word.docx', 'slides.pptx', 'word.doc', 'slides.ppt'].map(async name => {
+    const start = performance.now();
+    const outputPath = join(dir, name + '.pdf');
+    const result = await converter.render({ inputPath: join(dir, name), outputPath });
+    assert.equal(result.backend, 'native-system');
+    assert.match((await readFile(outputPath)).subarray(0, 8).toString(), /^%PDF-/);
+    console.log(name + ': native PDF in ' + Math.round(performance.now() - start) + 'ms');
+  }));
+  const small = await createConverter({ maxOutputBytes: 1 });
+  await assert.rejects(small.render({ inputPath: join(dir, 'word.docx'), outputPath: join(dir, 'small.pdf') }), { code: 'output-too-large' });
+  await small.dispose();
+  const timeout = await createConverter({ timeoutMs: 1 });
+  await assert.rejects(timeout.render({ inputPath: join(dir, 'word.docx'), outputPath: join(dir, 'timeout.pdf') }), { code: 'timeout' });
+  await timeout.dispose();
+  const limited = await createConverter({ maxArchiveEntries: 1 });
+  await assert.rejects(limited.render({ inputPath: join(dir, 'word.docx'), outputPath: join(dir, 'limit.pdf') }), { code: 'invalid-document' });
+  await limited.dispose();
+  const provider = { slots: [], options: {}, config: { maxOutputBytes: 100 * 1024 ** 2 } };
+  const converted = await OfficeToPdf.prototype.convertBytes.call(provider, await readFile(join(dir, 'slides.pptx')), 'pptx', signal);
+  assert.match(Buffer.from(converted.pdf).subarray(0, 8).toString(), /^%PDF-/);
+  await Promise.all(provider.slots.map(async slot => (await slot.converter).dispose()));
+  console.log('installed DSH convertBytes integration passed');
+  assert.equal((await readdir(tmpdir())).filter(name => name.startsWith('dsh-native-office-')).length, 0);
+  console.log('concurrent DOCX/PPTX/DOC/PPT, output/ZIP limits, timeout and cleanup passed');
+} finally { await converter.dispose(); await rm(dir, { recursive: true, force: true }); }
@@ -0,0 +1,10 @@
+"""Apply process limits before executing a trusted conversion helper."""
+import os
+import resource
+import sys
+
+memory, file_bytes, *command = sys.argv[1:]
+resource.setrlimit(resource.RLIMIT_AS, (int(memory), int(memory)))
+resource.setrlimit(resource.RLIMIT_FSIZE, (int(file_bytes), int(file_bytes)))
+resource.setrlimit(resource.RLIMIT_CORE, (0, 0))
+os.execv(command[0], command)
@@ -0,0 +1,24 @@
+// Scoped to this plugin; host authentication and global fetch are unchanged.
+async function dshChatFetch(path, init) {
+  const parts = window.location.pathname.split('/');
+  const prefix = parts[1] === 'dsh' && parts[2] ? '/dsh/' + parts[2] : '';
+  return fetch(prefix + path, init);
+}
+async function dshChatJson(response) {
+  const text = await response.text();
+  try { return JSON.parse(text); } catch {
+    throw new Error('Chat Manager: HTTP ' + response.status + ' returned a non-JSON response; check the instance proxy path and authentication.');
+  }
+}
+export const clientHelpers = dshChatFetch.toString() + String.fromCharCode(10) + dshChatJson.toString() + String.fromCharCode(10);
+
+export function patchClient(source, version) {
+  if (version !== '1.5.20') throw new Error('unsupported chat-manager version');
+  if (source.includes('dshChatFetch') || source.split('await fetch(').length !== 4
+      || source.split('await response.json()').length !== 4
+      || source.split('/plugins/dsh-session-delete/').length !== 4) {
+    throw new Error('unexpected chat-manager client; review upstream changes');
+  }
+  return clientHelpers + source.replaceAll('await fetch(', 'await dshChatFetch(')
+    .replaceAll('await response.json()', 'await dshChatJson(response)');
+}
@@ -0,0 +1,44 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { runInNewContext } from 'node:vm';
+import { clientHelpers, patchClient } from './patch-chat-manager.mjs';
+
+test('chat paths preserve instance prefix and POST options', async () => {
+  for (const pathname of ['/dsh/demo/', '/dsh/demo', '/dsh/demo/session/123', '/', '/other/']) {
+    let received;
+    const context = { window: { location: { pathname } }, fetch: (...args) => { received = args; } };
+    runInNewContext(clientHelpers, context);
+    for (const action of ['delete', 'restore', 'archive-search']) {
+      const path = '/plugins/dsh-session-delete/' + action;
+      const options = { method: 'POST', body: '{}', headers: { 'x-dsh-session-delete-confirmation': 'delete-session' } };
+      await context.dshChatFetch(path, options);
+      assert.equal(received[0], (pathname.startsWith('/dsh/demo') ? '/dsh/demo' : '') + path);
+      assert.equal(received[1], options);
+    }
+  }
+});
+test('non-JSON errors report HTTP status without exposing response content', async () => {
+  const context = {};
+  runInNewContext(clientHelpers, context);
+  await assert.rejects(context.dshChatJson(new Response('method not allowed', { status: 405 })), /HTTP 405.*non-JSON/);
+  const body = await context.dshChatJson(Response.json({ ok: false, error: { code: 'forbidden' } }, { status: 403 }));
+  assert.equal(body.error.code, 'forbidden');
+});
+test('patch rejects unsupported or changed clients and double patching', () => {
+  const source = [
+    "await fetch('/plugins/dsh-session-delete/delete', options); await response.json()",
+    'await fetch(`/plugins/dsh-session-delete/${action}`, options); await response.json()',
+    "await fetch('/plugins/dsh-session-delete/archive-search', options); await response.json()",
+  ].join(';');
+  const patched = patchClient(source, '1.5.20');
+  assert.equal(patched.split('await dshChatFetch(').length, 4);
+  assert.equal(patched.slice(clientHelpers.length).replaceAll('await dshChatFetch(', 'await fetch(')
+    .replaceAll('await dshChatJson(response)', 'await response.json()'), source);
+  assert.throws(() => patchClient(source, '1.5.16'), /unsupported/);
+  assert.throws(() => patchClient(source, '1.5.13'), /unsupported/);
+  assert.throws(() => patchClient('', '1.5.20'), /unexpected/);
+  assert.throws(() => patchClient(source.replace('await fetch(', 'fetch('), '1.5.20'), /unexpected/);
+  assert.throws(() => patchClient(source.replace('await response.json()', 'response.json()'), '1.5.20'), /unexpected/);
+  assert.throws(() => patchClient(source.replace('/plugins/dsh-session-delete/', '/plugins/changed/'), '1.5.20'), /unexpected/);
+  assert.throws(() => patchClient(patched, '1.5.20'), /unexpected/);
+});
@@ -0,0 +1,25 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+
+test('release targets AMD64 and ARM64 with layout 7', () => {
+  const release = JSON.parse(readFileSync(new URL('../release.json', import.meta.url), 'utf8'));
+  assert.deepEqual(release.platforms, ['linux/amd64', 'linux/arm64']);
+  assert.equal(release.deployment_schema, 7);
+});
+
+test('Node and Caddy stages inherit the target platform', () => {
+  const dockerfile = readFileSync(new URL('./Dockerfile', import.meta.url), 'utf8');
+  const stages = dockerfile.split(String.fromCharCode(10)).filter(line => line.startsWith('FROM '));
+  assert.deepEqual(stages, ['FROM caddy:2.10.2 AS proxy', 'FROM node:24-bookworm-slim']);
+  assert.ok(dockerfile.includes('COPY --from=proxy /usr/bin/caddy /usr/bin/caddy'));
+});
+
+test('runtime includes Python tooling and headless LibreOffice with CJK fonts', () => {
+  const dockerfile = readFileSync(new URL('./Dockerfile', import.meta.url), 'utf8');
+  const install = dockerfile.split(String.fromCharCode(92, 10)).join(' ').split(String.fromCharCode(10)).find(line => line.startsWith('RUN apt-get update && apt-get install'));
+  for (const pkg of ['python3', 'python3-pip', 'python3-venv', 'python-is-python3', 'libreoffice', 'fonts-noto-cjk']) {
+    assert.ok(install.split(/\s+/).includes(pkg), `missing runtime package: ${pkg}`);
+  }
+  assert.ok(dockerfile.includes('RUN python --version && python3 -m pip --version && libreoffice --headless --version'));
+});
@@ -0,0 +1,95 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import { runInNewContext } from 'node:vm';
+
+test('installer accepts the release host and rejects unverified hosts before writing', () => {
+  const source = readFileSync(new URL('./install-preview-download.mjs', import.meta.url), 'utf8')
+    .replace(/^import .*;$/gm, '').replaceAll('import.meta.url', JSON.stringify(import.meta.url));
+  const release = JSON.parse(readFileSync(new URL('../release.json', import.meta.url)));
+  for (const version of [release.version, '0.2.1-rc.2', '0.2.1-rc.4', 'next']) {
+    const calls = [];
+    const run = () => runInNewContext(source, {
+      URL, readFileSync: () => JSON.stringify({ version }),
+      mkdirSync: (...args) => calls.push(['mkdir', ...args]),
+      cpSync: (...args) => calls.push(['copy', ...args]),
+      execFileSync: (...args) => calls.push(['exec', ...args]),
+    });
+    if (version === release.version) {
+      run();
+      assert.deepEqual(calls.map(call => call[0]), ['mkdir', 'copy', 'exec']);
+      assert.equal(calls[2][1], 'tar');
+      assert.equal(calls[2][2][1], '/usr/local/lib/dsh-mgr/dsh-preview-download-1.0.1.tgz');
+    } else {
+      assert.throws(run, /Unverified preview download host/);
+      assert.equal(calls.length, 0);
+    }
+  }
+});
+
+function load() {
+  let plugin;
+  runInNewContext(readFileSync(new URL('./preview-download/client.js', import.meta.url), 'utf8'), {
+    Uint8Array, window: { __ModuleLoader__: { load({ id, factory }) { assert.equal(id, 'dsh-preview-download'); plugin = factory(() => ({})); } } }
+  });
+  return plugin;
+}
+test('download passes exact session/path/signal to authorized complete-file RPC', async () => {
+  const plugin = load();
+  const data = new Uint8Array([0, 255, 10]);
+  const signal = new AbortController().signal;
+  const remote = { workspaceFiles: { async readBytes(...args) {
+    assert.equal(args[0], 'session-A'); assert.equal(args[1], '/workspace/中文.pptx');
+    assert.equal(Object.keys(args[2]).length, 0); assert.equal(args[3], signal);
+    return { ok: true, value: { offset: 0, eof: true, bytes: 3, data } };
+  } } };
+  assert.equal(await plugin.readOriginal(remote, 'session-A', '/workspace/中文.pptx', signal), data);
+  assert.equal(plugin.filename('/workspace/中文.pptx'), '中文.pptx');
+  assert.equal(plugin.filename('C:' + String.fromCharCode(92) + 'folder' + String.fromCharCode(92) + 'file.docx'), 'file.docx');
+});
+test('denied, partial, size mismatch and cancelled reads never produce download data', async () => {
+  const plugin = load();
+  for (const result of [
+    { ok: false, error: { code: 'gateway/forbidden' } },
+    { ok: true, value: { offset: 0, eof: false, data: new Uint8Array() } },
+    { ok: true, value: { offset: 0, eof: true, bytes: 5, data: new Uint8Array(2) } }
+  ]) {
+    await assert.rejects(plugin.readOriginal({ workspaceFiles: { readBytes: async () => result } }, 's', '/file', new AbortController().signal));
+  }
+  const controller = new AbortController(); controller.abort();
+  await assert.rejects(plugin.readOriginal({ workspaceFiles: { readBytes: async () => ({ ok: true, value: {} }) } }, 's', '/file', controller.signal));
+});
+test('plugin registers only the supported preview action slot', () => {
+  const plugin = load();
+  let registration;
+  plugin.apply({ effect: fn => fn(), locale: { register: () => () => {} }, remote: {}, slots: {
+    inject(name, fn) { assert.equal(name, 'sidebar.right.tab.document.actions'); return fn(); },
+    register(options, component) { registration = options; assert.equal(typeof component, 'function'); return () => {}; }
+  } });
+  assert.equal(registration.id, 'dsh-preview-download');
+  assert.equal(typeof registration.inject('session-A').download, 'function');
+});
+
+test('registered download declares every service used by its callback', async () => {
+  const plugin = load();
+  assert.ok(plugin.inject.includes('remote'));
+  assert.ok(plugin.inject.includes('remote.workspaceFiles'));
+  let registration;
+  let calls = 0;
+  const data = new Uint8Array([1, 2, 255]);
+  const ctx = {
+    effect: fn => fn(),
+    locale: { register: () => () => {} },
+    slots: { inject: (_name, fn) => fn(), register(options) { registration = options; return () => {}; } },
+    get remote() {
+      assert.ok(plugin.inject.includes('remote'), 'Cordis requires explicit remote injection');
+      return { workspaceFiles: { async readBytes(session, path) {
+        assert.equal(session, 'session-A'); assert.equal(path, '/file.bin'); calls++;
+        return { ok: true, value: { offset: 0, eof: true, bytes: 3, data } };
+      } } };
+    }
+  };
+  plugin.apply(ctx);
+  assert.equal(await registration.inject('session-A').download('/file.bin', new AbortController().signal), data);
+  assert.equal(calls, 1);
+});
@@ -0,0 +1,77 @@
+window.__ModuleLoader__.load({ id: 'dsh-preview-download', factory: require => {
+  const React = require('react');
+  const { createElement: h, useState, useRef, useEffect } = React;
+  const namespace = 'previewDownload';
+
+  function filename(path) {
+    const name = path.replaceAll('\\', '/').split('/').pop() || 'download';
+    return Array.from(name, char => char.charCodeAt(0) < 32 || char.charCodeAt(0) === 127 || '<>:"|?*'.includes(char) ? '_' : char).join('');
+  }
+
+  async function readOriginal(remote, sessionId, path, signal) {
+    signal.throwIfAborted();
+    const result = await remote.workspaceFiles.readBytes(sessionId, path, {}, signal);
+    signal.throwIfAborted();
+    if (!result.ok) throw Object.assign(new Error('Download refused'), { code: result.error.code });
+    const file = result.value;
+    if (!file.eof || file.offset !== 0 || !(file.data instanceof Uint8Array) || (file.bytes !== undefined && file.bytes !== file.data.byteLength)) {
+      throw new Error('Incomplete file response');
+    }
+    return file.data;
+  }
+
+  function Download({ absolutePath, download, t }) {
+    const [busy, setBusy] = useState(false);
+    const [error, setError] = useState('');
+    const pending = useRef(null);
+    useEffect(() => {
+      setBusy(false);
+      setError('');
+      return () => { pending.current?.abort(); pending.current = null; };
+    }, [absolutePath, download]);
+    async function start() {
+      if (pending.current) return;
+      const controller = new AbortController();
+      pending.current = controller;
+      setBusy(true);
+      setError('');
+      try {
+        const bytes = await download(absolutePath, controller.signal);
+        controller.signal.throwIfAborted();
+        const url = URL.createObjectURL(new Blob([bytes], { type: 'application/octet-stream' }));
+        const link = document.createElement('a');
+        link.href = url;
+        link.download = filename(absolutePath);
+        link.hidden = true;
+        document.body.appendChild(link);
+        try { link.click(); }
+        finally { link.remove(); setTimeout(() => URL.revokeObjectURL(url), 60000); }
+      } catch (cause) {
+        if (!controller.signal.aborted) setError(t(cause?.code === 'workspace-file/too-large' ? 'tooLarge' : 'failed'));
+      } finally {
+        if (pending.current === controller) { pending.current = null; setBusy(false); }
+      }
+    }
+    return h('span', { style: { display: 'inline-flex', alignItems: 'center', gap: '6px', flexShrink: 0 } },
+      h('button', { type: 'button', disabled: busy, onClick: start, title: t('download'), 'aria-label': t('download'), 'aria-busy': busy, 'data-preview-download': '',
+        style: { color: 'inherit', background: 'transparent', border: '1px solid currentColor', borderRadius: '6px', padding: '4px 8px', font: 'inherit', cursor: busy ? 'wait' : 'pointer' }
+      }, busy ? t('loading') : t('download')),
+      error && h('span', { role: 'alert', style: { fontSize: '12px', maxWidth: '180px' } }, error));
+  }
+
+  return {
+    inject: ['slots', 'locale', 'remote', 'remote.workspaceFiles'],
+    apply(ctx) {
+      ctx.effect(() => ctx.locale.register(namespace, {
+        zh: { download: '下载原文件', loading: '下载中…', failed: '下载失败，请检查文件权限或重试。', tooLarge: '文件超过下载大小限制。' },
+        en: { download: 'Download original', loading: 'Downloading…', failed: 'Download failed. Check access or retry.', tooLarge: 'File exceeds the download size limit.' }
+      }));
+      ctx.effect(() => ctx.slots.inject('sidebar.right.tab.document.actions', () => ctx.slots.register({
+        name: 'sidebar.right.tab.document.actions', id: 'dsh-preview-download', locale: namespace,
+        inject: sessionId => ({ download: (path, signal) => readOriginal(ctx.remote, sessionId, path, signal) })
+      }, Download)));
+    },
+    // Pure helpers are also exercised by the offline regression suite.
+    filename, readOriginal
+  };
+} });
@@ -0,0 +1,3 @@
+- insert:
+    - id: dsh-preview-download
+      name: dsh-preview-download
@@ -0,0 +1,3 @@
+// Client-only extension: no new server endpoints or authorization changes.
+export const name = 'dsh-preview-download';
+export function apply() {}
@@ -0,0 +1,15 @@
+{
+  "name": "dsh-preview-download",
+  "version": "1.0.1",
+  "private": true,
+  "type": "module",
+  "main": "index.js",
+  "exports": { ".": "./index.js", "./client": "./client.js" },
+  "dsh": {
+    "bundle": { "patch": "cordis.patch.yml" },
+    "client": {
+      "platform": "web",
+      "inject": ["@deepseek-ai/dsh-client-ui-sidebar-documentpreview", "@deepseek-ai/dsh-client-ui-slots", "@deepseek-ai/dsh-client-locale", "@deepseek-ai/dsh-api-workspace-files"]
+    }
+  }
+}
@@ -0,0 +1,133 @@
+import { lstatSync, readFileSync, writeFileSync, openSync, closeSync, fsyncSync, renameSync, unlinkSync } from 'node:fs';
+import { dirname, join, resolve, basename } from 'node:path';
+import { randomUUID } from 'node:crypto';
+
+export const BUILTIN_DEPENDENCIES = Object.freeze({
+  'dsh-preview-download': 'file:/usr/local/lib/dsh-mgr/dsh-preview-download-1.0.1.tgz',
+  'dsh-chat-manager': 'file:/usr/local/lib/dsh-mgr/dsh-chat-manager-1.5.20-dsh-mgr.1.tgz',
+  'dsh-mgr-workspace': 'file:/usr/local/lib/dsh-mgr/dsh-mgr-workspace-1.0.0.tgz',
+  'dsh-web-mobile': 'file:/usr/local/lib/dsh-mgr/dsh-web-mobile-3.2.1.tgz',
+  'dsh-free-search': 'file:/usr/local/lib/dsh-mgr/dsh-free-search-0.9.21.tgz',
+});
+export const BUILTIN_OVERRIDES = Object.freeze({
+  'dsh-chat-manager>clsx': 'file:/usr/local/lib/dsh-mgr/clsx-2.1.1.tgz',
+  'dsh-free-search>@deepseek-ai/schemastery': 'file:/usr/local/lib/dsh-mgr/schemastery-3.18.4.tgz',
+  '@deepseek-ai/schemastery>@deepseek-ai/cosmokit': 'file:/usr/local/lib/dsh-mgr/cosmokit-1.8.5.tgz',
+  '@deepseek-ai/schemastery>@standard-schema/spec': 'file:/usr/local/lib/dsh-mgr/spec-1.1.0.tgz',
+});
+const sections = ['dependencies', 'devDependencies', 'optionalDependencies'];
+export const LOCKFILE_PENDING = '.dsh-lockfile-pending';
+
+export function markLockfilePending(profile) {
+  assertSafeProfile(profile);
+  const fd = openSync(join(profile, LOCKFILE_PENDING), 'w', 0o600);
+  try { writeFileSync(fd, 'builtin profile migration\n'); fsyncSync(fd); }
+  finally { closeSync(fd); }
+  const directoryFd = openSync(profile, 'r');
+  try { fsyncSync(directoryFd); } finally { closeSync(directoryFd); }
+}
+const overrideOwners = ['dsh-chat-manager', 'dsh-free-search', 'dsh-free-search', 'dsh-free-search'];
+const semver = '(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)(?:-(?:0|[1-9]\\d*|\\d*[A-Za-z-][0-9A-Za-z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[A-Za-z-][0-9A-Za-z-]*))*)?(?:\\+[0-9A-Za-z-]+(?:\\.[0-9A-Za-z-]+)*)?';
+
+function object(value, label) {
+  if (!value || typeof value !== 'object' || Array.isArray(value)) throw new Error(`invalid ${label}`);
+}
+
+export function reconcileManifest(input) {
+  object(input, 'manifest');
+  const manifest = structuredClone(input);
+  const active = new Set();
+  const archives = new Set();
+  let changed = false;
+  for (const section of sections) {
+    if (manifest[section] === undefined) continue;
+    object(manifest[section], section);
+    for (const [name, target] of Object.entries(BUILTIN_DEPENDENCIES)) {
+      const current = manifest[section][name];
+      if (typeof current !== 'string' || !new RegExp(`^file:/usr/local/lib/dsh-mgr/${name}-${semver}\\.tgz$`).test(current)) continue;
+      active.add(name);
+      archives.add(target);
+      if (current !== target) {
+        manifest[section][name] = target;
+        changed = true;
+      }
+    }
+  }
+  if (manifest.pnpm !== undefined) {
+    object(manifest.pnpm, 'pnpm');
+    if (manifest.pnpm.overrides !== undefined) object(manifest.pnpm.overrides, 'pnpm.overrides');
+  }
+  Object.entries(BUILTIN_OVERRIDES).forEach(([key, target], index) => {
+    if (!active.has(overrideOwners[index])) return;
+    manifest.pnpm ??= {};
+    manifest.pnpm.overrides ??= {};
+    if (!Object.hasOwn(manifest.pnpm.overrides, key)) {
+      manifest.pnpm.overrides[key] = target;
+      changed = true;
+    }
+    if (manifest.pnpm.overrides[key] === target) archives.add(target);
+  });
+  return { manifest, changed, archives: [...archives] };
+}
+
+function statIfPresent(path) {
+  try { return lstatSync(path); } catch (error) {
+    if (error.code !== 'ENOENT') throw error;
+  }
+}
+
+export function assertSafeProfile(profile) {
+  for (let dir = resolve(profile); ; dir = dirname(dir)) {
+    const stat = statIfPresent(dir);
+    if (stat && (!stat.isDirectory() || stat.isSymbolicLink())) throw new Error(`unsafe profile directory: ${dir}`);
+    if (dirname(dir) === dir) break;
+  }
+  for (const name of ['package.json', 'pnpm-workspace.yaml', 'pnpm-lock.yaml', LOCKFILE_PENDING]) {
+    const path = join(profile, name);
+    const stat = statIfPresent(path);
+    if (stat && (!stat.isFile() || stat.isSymbolicLink())) throw new Error(`unsafe profile file: ${path}`);
+  }
+}
+
+export function reconcileProfile(profile, { archiveDirectory = '/usr/local/lib/dsh-mgr' } = {}) {
+  assertSafeProfile(profile);
+  const path = join(profile, 'package.json');
+  if (!statIfPresent(path)) return { changed: false };
+  const original = readFileSync(path);
+  const result = reconcileManifest(JSON.parse(original.toString('utf8')));
+  for (const reference of result.archives) {
+    const archive = join(archiveDirectory, basename(reference.slice(5)));
+    const stat = lstatSync(archive);
+    if (!stat.isFile() || stat.isSymbolicLink()) throw new Error(`unsafe builtin archive: ${archive}`);
+  }
+  if (!result.changed) return { changed: false };
+  const backupPath = `${path}.backup-${randomUUID()}`;
+  const temporaryPath = `${path}.tmp-${randomUUID()}`;
+  let temporaryCreated = false;
+  try {
+    const backupFd = openSync(backupPath, 'wx', 0o600);
+    try { writeFileSync(backupFd, original); fsyncSync(backupFd); }
+    finally { closeSync(backupFd); }
+    const syncDirectory = () => {
+      const directoryFd = openSync(profile, 'r');
+      try { fsyncSync(directoryFd); } finally { closeSync(directoryFd); }
+    };
+    // Make the recovery copy durable before replacing the active manifest.
+    syncDirectory();
+    const fd = openSync(temporaryPath, 'wx', 0o600);
+    temporaryCreated = true;
+    try {
+      writeFileSync(fd, JSON.stringify(result.manifest, null, 2) + '\n');
+      fsyncSync(fd);
+    } finally { closeSync(fd); }
+    assertSafeProfile(profile);
+    // Persist before changing the manifest, including across failed installs/restarts.
+    markLockfilePending(profile);
+    renameSync(temporaryPath, path);
+    temporaryCreated = false;
+    syncDirectory();
+  } finally {
+    if (temporaryCreated) unlinkSync(temporaryPath);
+  }
+  return { changed: true, backupPath };
+}
@@ -0,0 +1,280 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import fs, { mkdtempSync, mkdirSync, readFileSync, writeFileSync, rmSync, symlinkSync, readdirSync, statSync, linkSync } from 'node:fs';
+import { syncBuiltinESMExports } from 'node:module';
+import { tmpdir } from 'node:os';
+import { join, basename } from 'node:path';
+import { BUILTIN_DEPENDENCIES, BUILTIN_OVERRIDES, reconcileManifest, reconcileProfile } from './reconcile-profile.mjs';
+import { initProfile } from './init-profile.mjs';
+
+const old = name => 'file:/usr/local/lib/dsh-mgr/' + name + '-0.0.1-rc.1+build.2.tgz';
+test('runtime-7.9 plugin references migrate to runtime-7.11 without changing bundle choices', t => {
+  const bundles = ['dsh-web-mobile', 'dsh-chat-manager'];
+  const f = fixture(t, {
+    dependencies: {
+      'dsh-web-mobile': 'file:/usr/local/lib/dsh-mgr/dsh-web-mobile-3.1.0.tgz',
+      'dsh-free-search': 'file:/usr/local/lib/dsh-mgr/dsh-free-search-0.9.2.tgz',
+      'dsh-chat-manager': 'file:/usr/local/lib/dsh-mgr/dsh-chat-manager-1.5.16-dsh-mgr.1.tgz',
+    },
+    dsh: { profile: { bundles } },
+  });
+  const result = f.run();
+  assert.equal(result.changed, true);
+  assert.equal(readFileSync(result.backupPath, 'utf8'), f.original);
+  const current = JSON.parse(readFileSync(f.path));
+  for (const name of Object.keys(current.dependencies)) assert.equal(current.dependencies[name], BUILTIN_DEPENDENCIES[name]);
+  assert.deepEqual(current.dsh.profile.bundles, bundles);
+  assert.deepEqual(f.run(), { changed: false });
+});
+test('runtime-7.10 plugin references migrate to runtime-7.11 without changing bundle choices', t => {
+  const bundles = ['dsh-web-mobile', 'dsh-chat-manager'];
+  const f = fixture(t, {
+    dependencies: {
+      'dsh-web-mobile': 'file:/usr/local/lib/dsh-mgr/dsh-web-mobile-3.2.1.tgz',
+      'dsh-free-search': 'file:/usr/local/lib/dsh-mgr/dsh-free-search-0.9.15.tgz',
+      'dsh-chat-manager': 'file:/usr/local/lib/dsh-mgr/dsh-chat-manager-1.5.18-dsh-mgr.1.tgz',
+    },
+    dsh: { profile: { bundles } },
+  });
+  const result = f.run();
+  assert.equal(result.changed, true);
+  assert.equal(readFileSync(result.backupPath, 'utf8'), f.original);
+  const current = JSON.parse(readFileSync(f.path));
+  for (const name of Object.keys(current.dependencies)) assert.equal(current.dependencies[name], BUILTIN_DEPENDENCIES[name]);
+  assert.deepEqual(current.dsh.profile.bundles, bundles);
+  assert.deepEqual(f.run(), { changed: false });
+});
+function fixture(t, manifest) {
+  const root = mkdtempSync(join(tmpdir(), 'dsh-reconcile-'));
+  t.after(() => rmSync(root, { recursive: true, force: true }));
+  const profile = join(root, 'profiles/web');
+  const archiveDirectory = join(root, 'archives');
+  mkdirSync(profile, { recursive: true });
+  mkdirSync(archiveDirectory);
+  for (const reference of [...Object.values(BUILTIN_DEPENDENCIES), ...Object.values(BUILTIN_OVERRIDES)]) {
+    writeFileSync(join(archiveDirectory, basename(reference)), 'fixture');
+  }
+  const path = join(profile, 'package.json');
+  const original = typeof manifest === 'string' ? manifest : JSON.stringify(manifest, null, 4) + '\n';
+  writeFileSync(path, original);
+  return { root, profile, path, original, archiveDirectory, run: () => reconcileProfile(profile, { archiveDirectory }) };
+}
+
+test('migrates all sections, backs up exact bytes, replaces atomically with 0600, and is idempotent', t => {
+  const f = fixture(t, {
+    dependencies: { 'dsh-web-mobile': old('dsh-web-mobile') },
+    devDependencies: { 'dsh-chat-manager': old('dsh-chat-manager') },
+    optionalDependencies: { 'dsh-free-search': old('dsh-free-search') },
+    dsh: { profile: { bundles: [] } },
+  });
+  const originalLink = join(f.root, 'original-link');
+  linkSync(f.path, originalLink);
+  const first = f.run();
+  assert.equal(first.changed, true);
+  assert.equal(readFileSync(first.backupPath, 'utf8'), f.original);
+  assert.equal(readFileSync(originalLink, 'utf8'), f.original);
+  assert.equal(statSync(f.path).mode & 0o777, 0o600);
+  assert.equal(statSync(first.backupPath).mode & 0o777, 0o600);
+  const current = JSON.parse(readFileSync(f.path));
+  for (const section of ['dependencies', 'devDependencies', 'optionalDependencies']) {
+    for (const name of Object.keys(current[section])) assert.equal(current[section][name], BUILTIN_DEPENDENCIES[name]);
+  }
+  assert.deepEqual(current.pnpm.overrides, BUILTIN_OVERRIDES);
+  assert.deepEqual(current.dsh.profile.bundles, []);
+  const before = statSync(f.path);
+  assert.deepEqual(f.run(), { changed: false });
+  assert.equal(statSync(f.path).ino, before.ino);
+  assert.equal(statSync(f.path).mtimeMs, before.mtimeMs);
+  assert.equal(readdirSync(f.profile).length, 3);
+  assert.equal(readFileSync(join(f.profile, '.dsh-lockfile-pending'), 'utf8'), 'builtin profile migration\n');
+  writeFileSync(f.path, f.original);
+  assert.notEqual(f.run().backupPath, first.backupPath);
+  assert.equal(readFileSync(first.backupPath, 'utf8'), f.original);
+});
+
+function withSyncTrace(f, callback, failAt) {
+  const originals = Object.fromEntries(
+    ['openSync', 'writeFileSync', 'fsyncSync', 'closeSync', 'renameSync'].map(name => [name, fs[name]]),
+  );
+  const descriptors = new Map();
+  const events = [];
+  let directoryOpens = 0;
+  fs.openSync = (path, ...args) => {
+    const fd = originals.openSync(path, ...args);
+    const target = path === f.profile ? `directory-${++directoryOpens}`
+      : String(path).startsWith(`${f.path}.backup-`) ? 'backup'
+      : String(path).startsWith(`${f.path}.tmp-`) ? 'temporary' : undefined;
+    if (target) {
+      descriptors.set(fd, target);
+      events.push(`open:${target}`);
+    }
+    return fd;
+  };
+  for (const [name, operation] of [['writeFileSync', 'write'], ['fsyncSync', 'fsync'], ['closeSync', 'close']]) {
+    fs[name] = (fd, ...args) => {
+      const target = descriptors.get(fd);
+      if (target) {
+        const event = `${operation}:${target}`;
+        events.push(event);
+        if (event === failAt) throw new Error(`injected ${event} failure`);
+      }
+      const result = originals[name](fd, ...args);
+      if (name === 'closeSync') descriptors.delete(fd);
+      return result;
+    };
+  }
+  fs.renameSync = (source, destination) => {
+    assert.ok(source.startsWith(`${f.path}.tmp-`));
+    assert.equal(destination, f.path);
+    events.push('rename:manifest');
+    return originals.renameSync(source, destination);
+  };
+  syncBuiltinESMExports();
+  try {
+    callback(events);
+  } finally {
+    Object.assign(fs, originals);
+    syncBuiltinESMExports();
+  }
+}
+
+const durableWriteOrder = [
+  'open:backup', 'write:backup', 'fsync:backup', 'close:backup',
+  'open:directory-1', 'fsync:directory-1', 'close:directory-1',
+  'open:temporary', 'write:temporary', 'fsync:temporary', 'close:temporary',
+  'open:directory-2', 'fsync:directory-2', 'close:directory-2',
+  'rename:manifest',
+  'open:directory-3', 'fsync:directory-3', 'close:directory-3',
+];
+
+test('syncs backup and directory before replacement, then syncs the renamed manifest directory', t => {
+  const f = fixture(t, { dependencies: { 'dsh-web-mobile': old('dsh-web-mobile') } });
+  withSyncTrace(f, events => {
+    const result = f.run();
+    assert.equal(result.changed, true);
+    assert.deepEqual(events, durableWriteOrder);
+    assert.equal(readFileSync(result.backupPath, 'utf8'), f.original);
+    assert.equal(JSON.parse(readFileSync(f.path)).dependencies['dsh-web-mobile'], BUILTIN_DEPENDENCIES['dsh-web-mobile']);
+  });
+});
+
+for (const target of ['backup', 'directory-1', 'temporary']) {
+  test(`${target} fsync failure preserves the original manifest and does not rename`, t => {
+    const f = fixture(t, { dependencies: { 'dsh-web-mobile': old('dsh-web-mobile') } });
+    const before = statSync(f.path);
+    const failAt = `fsync:${target}`;
+    withSyncTrace(f, events => {
+      assert.throws(f.run, { message: `injected ${failAt} failure` });
+      assert.deepEqual(events, [
+        ...durableWriteOrder.slice(0, durableWriteOrder.indexOf(failAt) + 1),
+        `close:${target}`,
+      ]);
+    }, failAt);
+    assert.equal(readFileSync(f.path, 'utf8'), f.original);
+    assert.equal(statSync(f.path).ino, before.ino);
+    assert.equal(statSync(f.path).mtimeMs, before.mtimeMs);
+    const backups = readdirSync(f.profile).filter(name => name.startsWith('package.json.backup-'));
+    assert.equal(backups.length, 1);
+    assert.equal(readFileSync(join(f.profile, backups[0]), 'utf8'), f.original);
+    assert.deepEqual(readdirSync(f.profile).sort(), ['package.json', ...backups].sort());
+  });
+}
+
+test('preserves deleted plugins, disabled bundles, custom dependencies and overrides', t => {
+  const custom = {
+    dependencies: { 'dsh-chat-manager': old('dsh-chat-manager'), 'dsh-web-mobile': '^3.0.0', other: old('other') },
+    devDependencies: { 'dsh-free-search': 'file:/custom/dsh-free-search-0.1.0.tgz' },
+    optionalDependencies: { 'dsh-preview-download': 'file:/usr/local/lib/dsh-mgr/not-the-same-1.0.0.tgz' },
+    pnpm: { overrides: { 'dsh-chat-manager>clsx': '^2.0.0', unrelated: 'custom' }, other: true },
+    dsh: { profile: { bundles: ['user-plugin'] } },
+  };
+  const f = fixture(t, custom);
+  writeFileSync(join(f.profile, 'pnpm-workspace.yaml'), 'custom workspace');
+  writeFileSync(join(f.profile, 'cordis.patch.yml'), 'custom patch');
+  f.run();
+  const expected = structuredClone(custom);
+  expected.dependencies['dsh-chat-manager'] = BUILTIN_DEPENDENCIES['dsh-chat-manager'];
+  assert.deepEqual(JSON.parse(readFileSync(f.path)), expected);
+  assert.equal(readFileSync(join(f.profile, 'pnpm-workspace.yaml'), 'utf8'), 'custom workspace');
+  assert.equal(readFileSync(join(f.profile, 'cordis.patch.yml'), 'utf8'), 'custom patch');
+});
+
+test('strict archive matching leaves non-semver references untouched', () => {
+  for (const version of ['latest', '01.0.0', '1.0', '1.0.0-01', '1.0.0.tgz/extra']) {
+    const input = { dependencies: { 'dsh-web-mobile': 'file:/usr/local/lib/dsh-mgr/dsh-web-mobile-' + version + '.tgz' } };
+    assert.equal(reconcileManifest(input).changed, false);
+  }
+});
+
+test('current defaults and user-only manifests remain byte-identical', t => {
+  for (const manifest of [
+    { dependencies: BUILTIN_DEPENDENCIES, pnpm: { overrides: BUILTIN_OVERRIDES } },
+    { dependencies: { 'dsh-chat-manager': '^1.0.0' }, custom: true },
+    { dsh: { profile: { bundles: [] } } },
+  ]) {
+    const f = fixture(t, manifest);
+    assert.equal(f.run().changed, false);
+    assert.equal(readFileSync(f.path, 'utf8'), f.original);
+    assert.deepEqual(readdirSync(f.profile), ['package.json']);
+  }
+});
+
+test('missing archives fail before writes, even when already current', t => {
+  for (const reference of [old('dsh-web-mobile'), BUILTIN_DEPENDENCIES['dsh-web-mobile']]) {
+    const f = fixture(t, { dependencies: { 'dsh-web-mobile': reference } });
+    rmSync(join(f.archiveDirectory, basename(BUILTIN_DEPENDENCIES['dsh-web-mobile'])));
+    assert.throws(f.run, /ENOENT/);
+    assert.equal(readFileSync(f.path, 'utf8'), f.original);
+    assert.deepEqual(readdirSync(f.profile), ['package.json']);
+  }
+});
+
+test('invalid JSON and malformed sections fail without changing original', t => {
+  for (const input of ['{ broken', 'null', '[]', JSON.stringify({ dependencies: [] }), JSON.stringify({ pnpm: { overrides: null } })]) {
+    const f = fixture(t, input);
+    assert.throws(f.run);
+    assert.equal(readFileSync(f.path, 'utf8'), input);
+    assert.deepEqual(readdirSync(f.profile), ['package.json']);
+  }
+});
+
+test('rejects manifest/workspace symlinks, dangling links and directories', t => {
+  for (const name of ['package.json', 'pnpm-workspace.yaml', 'pnpm-lock.yaml', '.dsh-lockfile-pending']) {
+    for (const kind of ['symlink', 'dangling', 'directory']) {
+      const f = fixture(t, { dependencies: { 'dsh-web-mobile': old('dsh-web-mobile') } });
+      const target = join(f.root, 'outside');
+      if (kind === 'symlink') writeFileSync(target, f.original);
+      const path = join(f.profile, name);
+      rmSync(path, { force: true });
+      if (kind === 'directory') mkdirSync(path);
+      else symlinkSync(target, path);
+      const before = readdirSync(f.profile);
+      assert.throws(f.run, /unsafe profile file/);
+      assert.deepEqual(readdirSync(f.profile), before);
+      if (kind === 'symlink') assert.equal(readFileSync(target, 'utf8'), f.original);
+      if (name !== 'package.json') assert.equal(readFileSync(f.path, 'utf8'), f.original);
+    }
+  }
+});
+
+test('rejects symlinked profile and ancestors', t => {
+  const f = fixture(t, '{}');
+  const link = join(f.root, 'linked');
+  symlinkSync(join(f.root, 'profiles'), link);
+  assert.throws(() => reconcileProfile(join(link, 'web'), { archiveDirectory: f.archiveDirectory }), /unsafe profile directory/);
+  const direct = join(f.root, 'direct');
+  symlinkSync(f.profile, direct);
+  assert.throws(() => reconcileProfile(direct), /unsafe profile directory/);
+});
+
+test('init migrates before restoring workspace and rejects unsafe workspace before writes', t => {
+  const f = fixture(t, { optionalDependencies: { 'dsh-web-mobile': old('dsh-web-mobile') } });
+  const run = () => initProfile(f.root, { archiveDirectory: f.archiveDirectory });
+  symlinkSync(join(f.root, 'missing'), join(f.profile, 'pnpm-workspace.yaml'));
+  assert.throws(run, /unsafe profile file/);
+  assert.equal(readFileSync(f.path, 'utf8'), f.original);
+  rmSync(join(f.profile, 'pnpm-workspace.yaml'));
+  run();
+  assert.equal(JSON.parse(readFileSync(f.path)).optionalDependencies['dsh-web-mobile'], BUILTIN_DEPENDENCIES['dsh-web-mobile']);
+  assert.match(readFileSync(join(f.profile, 'pnpm-workspace.yaml'), 'utf8'), /autoInstallPeers: false/);
+});
@@ -0,0 +1,29 @@
+"""Bounded, non-extracting Office container validation; Python stdlib only."""
+import sys
+import zipfile
+
+path, ext, entries, maximum = sys.argv[1:]
+if ext in ('doc', 'xls', 'ppt'):
+    with open(path, 'rb') as source:
+        if source.read(8) != bytes.fromhex('d0cf11e0a1b11ae1'):
+            raise ValueError('not OLE')
+else:
+    expected = {'docx': 'word/document.xml', 'xlsx': 'xl/workbook.xml', 'pptx': 'ppt/presentation.xml'}[ext]
+    with zipfile.ZipFile(path) as archive:
+        info = archive.infolist()
+        names = [entry.filename for entry in info]
+        if len(info) > int(entries) or len(set(names)) != len(names):
+            raise ValueError('entry limit or duplicate')
+        if expected not in names or '[Content_Types].xml' not in names:
+            raise ValueError('format mismatch')
+        if sum(entry.file_size for entry in info) > int(maximum):
+            raise ValueError('uncompressed size limit')
+        total = 0
+        for entry in info:
+            if entry.flag_bits & 1:
+                raise ValueError('encrypted')
+            with archive.open(entry) as stream:
+                while chunk := stream.read(65536):
+                    total += len(chunk)
+                    if total > int(maximum):
+                        raise ValueError('uncompressed size limit')
@@ -1,7 +1,7 @@
 {
  "schema_version": 1,
-  "release_id": "runtime-7.1",
-  "version": "0.2.0-rc.2",
+  "release_id": "runtime-7.11",
+  "version": "0.2.1-rc.5",
  "deployment_schema": 7,
-  "platforms": ["linux/amd64"]
+  "platforms": ["linux/amd64", "linux/arm64"]
 }
Author	SHA1	Message	Date
m1saka	169e1ffdc2	chore(runtime): upgrade DSH and bundled plugins for runtime-7.11	2026-10-30 17:08:16 +08:00
m1saka	0389555d76	chore(runtime): upgrade DSH and bundled plugins for runtime-7.10	2026-10-26 11:22:36 +08:00
m1saka	9961d42a2f	fix(runtime): remove obsolete PDF browser compatibility patch	2026-10-18 19:24:17 +08:00
m1saka	e36f3c1fdd	fix(runtime): support PDF preview on Chrome 143	2026-10-18 15:51:26 +08:00
m1saka	605a48adb0	Revert "fix(runtime): polyfill PDF.js Map APIs for older WebViews" This reverts commit `e84906652e`.	2026-10-18 14:22:40 +08:00
m1saka	e84906652e	fix(runtime): polyfill PDF.js Map APIs for older WebViews	2026-10-18 13:16:32 +08:00
m1saka	b13b71b27c	fix(runtime): hide successful plugin install output	2026-10-18 12:43:21 +08:00
m1saka	b2d97dfda2	fix(runtime): synchronize lockfile after builtin plugin migration	2026-10-18 11:44:15 +08:00
m1saka	2e31e74972	feat(runtime): upgrade DSH and bundled plugins with startup migration	2026-10-18 02:14:27 +08:00
m1saka	eb7e809999	fix(preview-download): declare remote service dependency	2026-10-17 03:31:32 +08:00
m1saka	bbdee632f6	feat(runtime): add native office preview and download plugin	2026-10-17 03:03:32 +08:00
m1saka	65d118a145	fix(runtime): download pinned MiSans fonts individually for 7.5	2026-10-16 16:32:58 +08:00
m1saka	39cd470f92	chore(release): bump runtime to 7.4	2026-10-16 16:16:42 +08:00
m1saka	1fbb2a6fed	feat(runtime): add document tools, MiSans and patched chat manager	2026-10-16 16:13:35 +08:00
m1saka	a6bf83f037	chore: ignore Android build leftovers and signing files	2026-10-15 16:51:27 +08:00
m1saka	ed6467d132	fix: enable host settings persistence in runtime-7.3	2026-10-15 10:35:22 +08:00
m1saka	1fda59fb09	feat: add ARM64 runtime release configuration	2026-10-14 19:42:34 +08:00