docs(release): add 0.19.2 release notes

Author: Siri-Ray

docs/CHANGELOG/v0.19.2/en.md

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+---
+title: Open Design 0.19.2 — DeepSeek Harness, One Command Away
+description: Install DeepSeek Harness with one command, export offline-safe HTML, and keep long agent runs responsive.
+---
+
+### 🌟 Codename: *DeepSeek Harness, One Command Away*
+
+🧰 **28 PRs · 9 contributors · 2 days** — **0.19.2 shortens the path from
+installing DeepSeek Harness to finishing work with it.** One command can set up
+a compatible Harness toolchain, Windows paths with spaces no longer break the
+Open Design connection, and long streams stay responsive. This patch also adds
+offline-safe HTML export and the structured Design System 3.0 runtime.
+
+## 🔥 Highlights
+
+- 🧰 **Install DeepSeek Harness with one command.** The new bootstrap scripts
+  cover macOS, Linux, Windows PowerShell, and Windows CMD. They reuse compatible
+  local tools or install an isolated user-scoped Node.js 24 toolchain with the
+  pinned Harness release, then open `dsh web` for API key setup. Open Design now
+  installs its connection component through a shell-safe profile path, including
+  Windows application and `DSH_HOME` paths that contain spaces. (#6900, #6905)
+
+- 📦 **Export HTML that keeps working after you move it.** Downloaded HTML now
+  bundles project-local images, styles, fonts, modules, workers, and nested
+  documents into one offline-safe file. Missing or oversized dependencies return
+  a clear error instead of a broken export. The same output is available through
+  `od export --format html`. (#6855)
+
+- ⚡ **Long agent runs stay responsive.** Thinking and text still stream into
+  chat while Open Design batches persistence and React updates behind the scenes.
+  Terminal transitions flush the last buffered output. `od export` also works
+  with a project ID alone, so agents no longer need workspace or member flags
+  for a project that already has a saved workspace binding. (#6915)
+
+- 🎨 **Structured design systems now drive generation and validation.** Design
+  System 3.0 packages give agents an intent map, exact component implementations,
+  tokens, and rules. Agents can resolve a component before generating, load only
+  its declared files, then validate reuse, required states, token use, and
+  fallback behavior. The same workflow is available through
+  `od tools design-systems`. (#6805)
+
+## ✨ Added
+
+- The DeepSeek Harness design guide now has a companion collection of 13 verified
+  design plugins, grouped by vision, generative UI, workflow, and preview use
+  cases, with localized detail pages and source-backed install commands.
+  (#6864, #6897)
+- Packaged apps now search standard nix-darwin, NixOS, system, and user profile
+  directories when discovering locally installed agent CLIs. (#6885)
+
+## 🔁 Changed
+
+- The Home creation row puts the most common project types first, and the
+  DeepSeek Pro and Flash campaign copy stays aligned across the product and
+  localized landing pages through August 27. (#6852, #6863, #6876, #6892)
+- Landing-page production deploys now purge the active host after publishing and
+  keep a short edge TTL for HTML, reducing the time visitors spend on stale
+  pages after a release. (#6552)
+
+## 🐛 Fixed
+
+### 🧠 DeepSeek Harness and agents
+
+- Canceling a Harness run now settles once as canceled, terminates the profile
+  process, preserves provider error details, and records the correct provider and
+  model in diagnostics. Canceled turns no longer appear as Working, Done, or Run
+  failed. (#6880)
+- Missing DeepSeek credentials now produce steps for `dsh web`, Settings →
+  Models, and `DEEPSEEK_API_KEY` instead of `[object Object]`. (#6890)
+- Long structured event streams no longer leave chat busy after useful output has
+  appeared, and project exports avoid repeated workspace-context failures.
+  (#6915)
+
+### 🖼️ Preview and workspace UI
+
+- Generated presentations recover when Chromium aborts an `about:srcdoc`
+  navigation, powered previews work behind reverse proxies, and comment bridges
+  wait for the committed preview URL before reporting ready. (#5592, #6797,
+  #6882)
+- Mobile comment previews no longer flash during close, deck previews fill the
+  viewer without letterboxing, and the move-to-team dialog covers the composer
+  beneath it. (#6785, #6829, #6854)
+- Expanded Message Center rows show their configured HTTP(S) action again.
+  Unsafe action URLs remain hidden. (#6894)
+
+### 🖥️ Desktop and delivery
+
+- Sidecars accept the configured internal host allowlist, which keeps packaged
+  deployments working behind approved internal hosts. (#6802)
+- Team pricing copy now matches the $5 per-seat catalog across landing-page
+  surfaces. (#6834)
+
+## 🙏 Thanks to everyone who shipped 0.19.2
+
+@AmyShang-alt · @CVE-Hunter-Leo · @jlbeard84 · @joeylee12629-star ·
+@kiuber · @lefarcen · @lorenzozanee · @mrcfps · @Siri-Ray

docs/CHANGELOG/v0.19.2/zh-CN.md

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+---
+title: Open Design 0.19.2 — DeepSeek Harness, One Command Away
+description: 用一条命令安装 DeepSeek Harness，导出可离线使用的 HTML，并让长时间 Agent 运行保持流畅。
+---
+
+### 🌟 Codename: *DeepSeek Harness, One Command Away*
+
+🧰 **28 个 PR · 9 位贡献者 · 2 天** — **0.19.2 缩短了从安装 DeepSeek
+Harness 到用它完成工作的路径。** 一条命令即可准备兼容的 Harness 工具链；Windows
+路径包含空格时，Open Design 的连接组件也能正常安装；长时间流式输出不再拖慢聊天。
+本次更新还带来可离线使用的 HTML 导出和结构化 Design System 3.0 runtime。
+
+## 🔥 亮点
+
+- 🧰 **用一条命令安装 DeepSeek Harness。** 新增的 bootstrap 脚本覆盖 macOS、
+  Linux、Windows PowerShell 和 Windows CMD。脚本会复用兼容的本地工具，或安装一套
+  用户级隔离的 Node.js 24 工具链与固定版本 Harness，然后打开 `dsh web` 配置 API
+  key。Open Design 现在会通过 shell-safe 的 profile 路径安装连接组件，即使 Windows
+  应用路径或 `DSH_HOME` 含有空格也可以完成安装。 (#6900, #6905)
+
+- 📦 **HTML 导出移动后仍能正常打开。** 下载 HTML 时，Open Design 会把项目内的
+  图片、样式、字体、module、worker 和嵌套文档收进一个可离线使用的文件。依赖缺失
+  或体积超限时会返回明确错误，不再生成损坏的导出文件。CLI 也可以通过
+  `od export --format html` 生成相同结果。 (#6855)
+
+- ⚡ **长时间 Agent 运行保持流畅。** Thinking 与正文仍会持续出现在聊天中，
+  Open Design 会在后台合并持久化和 React 更新，并在运行结束时写入最后一批缓存内容。
+  `od export` 现在只需 project ID；项目已经保存 workspace 绑定时，Agent 不必再传
+  workspace 或 member 参数。 (#6915)
+
+- 🎨 **结构化 Design System 现在会参与生成和校验。** Design System 3.0 package
+  为 Agent 提供 intent map、精确的组件实现、token 与规则。Agent 可以先解析目标组件，
+  只加载声明过的文件，再检查组件复用、必要状态、token 使用和 fallback 行为。
+  `od tools design-systems` 也提供同一套流程。 (#6805)
+
+## ✨ 新增
+
+- DeepSeek Harness 设计指南新增配套插件合集，收录 13 个经过核验的设计插件，按视觉
+  输入、生成式 UI、设计工作流和预览分类，并提供本地化详情页与来自上游文档的安装
+  命令。 (#6864, #6897)
+- 打包应用发现本地 Agent CLI 时，会搜索 nix-darwin、NixOS、系统级和用户级的标准
+  Nix profile 目录。 (#6885)
+
+## 🔁 变更
+
+- Home 创建入口会优先展示常用项目类型；DeepSeek Pro 与 Flash 活动文案也在产品和
+  多语言落地页中保持一致，活动时间延续至 8 月 27 日。 (#6852, #6863, #6876,
+  #6892)
+- Landing page 生产部署完成后会清理当前 host 的缓存，并为 HTML 使用较短的 edge
+  TTL，减少发布后继续看到旧页面的时间。 (#6552)
+
+## 🐛 修复
+
+### 🧠 DeepSeek Harness 与 Agent
+
+- 取消 Harness run 后，运行只会以 canceled 状态结束一次，profile 进程会退出，
+  provider 错误详情会保留，诊断信息也会记录正确的 provider 与 model。取消后的消息
+  不会再显示为 Working、Done 或 Run failed。 (#6880)
+- 缺少 DeepSeek 凭据时，界面会给出 `dsh web`、Settings → Models 和
+  `DEEPSEEK_API_KEY` 的配置步骤，不再显示 `[object Object]`。 (#6890)
+- 较长的结构化事件流不会在有效内容已经出现后继续让聊天保持 busy；项目导出也不会
+  因为缺少重复的 workspace context 而反复失败。 (#6915)
+
+### 🖼️ 预览与 Workspace UI
+
+- Chromium 中止 `about:srcdoc` 导航后，生成的演示文稿会自动恢复；powered preview
+  可以在反向代理后工作；comment bridge 也会等已提交的 preview URL 生效后再报告
+  ready。 (#5592, #6797, #6882)
+- 移动端评论预览关闭时不再闪烁，deck 预览会填满 viewer，move-to-team dialog 也会
+  完整遮住下方 composer。 (#6785, #6829, #6854)
+- 展开 Message Center 消息后，会重新显示配置过的 HTTP(S) 操作按钮；不安全的 URL
+  仍会隐藏。 (#6894)
+
+### 🖥️ 桌面端与交付
+
+- Sidecar 会接受配置过的内部 host allowlist，打包部署可以在获准的内部 host 后正常
+  工作。 (#6802)
+- Team 套餐的落地页文案现在与每席位 5 美元的价格目录一致。 (#6834)
+
+## 🙏 感谢每一位参与 0.19.2 的贡献者
+
+@AmyShang-alt · @CVE-Hunter-Leo · @jlbeard84 · @joeylee12629-star ·
+@kiuber · @lefarcen · @lorenzozanee · @mrcfps · @Siri-Ray