docs(website): match the Claude Design rows to Anthropic's announcement (#485)

## Summary

The Claude Design comparison page lists its export as HTML only and
shows inline element comments and adjustment sliders as missing.
Anthropic's
[announcement](https://www.anthropic.com/news/claude-design-anthropic-labs)
says otherwise, so this updates those rows in `website/` and
`website/zh/`:

- **Export:** `Canva · PDF · PPTX · HTML`, the four formats under
"Export anywhere". The announcement also lists sharing an internal URL
and saving as a folder; those are destinations, so they stay out of the
format cell.
- **Inline element comments:** `Yes`. "Refine with fine-grained
controls" says you can comment inline on specific elements.
- **AI-tunable sliders:** `Yes`. The intro lists "custom sliders (made
by Claude)", and the same section describes adjustment knobs for
spacing, color and layout.

Because both tools export to several formats and both have comments and
sliders, the page no longer presents "multiple export formats" or the
interactive surface as a reason to pick Open CoDesign. The first is
removed from the "Pick Open CoDesign" line. The second bullet now
describes what differs: the model you chose does the edit.

Rows the announcement does not cover (version history, responsive
frames, demo prompts) stay as they were.

## Type of change

- [ ] Bug fix
- [ ] New feature
- [ ] Refactor (no behavior change)
- [x] Documentation
- [ ] Build / CI / tooling
- [ ] Breaking change

## Linked issue

None. This corrects factual rows on one docs page and changes no
behavior.

## Checklist

- [x] I checked the linked issue / relevant context before starting
- [x] `pnpm lint && pnpm typecheck && pnpm test` passes locally
- [ ] Added/updated tests for the change (docs only)
- [ ] Added a changeset (`pnpm changeset`) if user-visible (website copy
only)
- [x] Updated docs if behavior changed

`pnpm build` in `website/` also passes, and the feature table keeps
three columns per row in both languages.

Author: wudilyy999

website/claude-design-alternative.md

@@ -22,7 +22,7 @@ Claude Design is a hosted web app by Anthropic that runs Claude Opus on their in
 
 Pick **Claude Design** if you want zero setup, are happy on an Anthropic subscription, and don't need model flexibility or offline use.
 
-Pick **Open CoDesign** if you want BYOK cost control, any model beyond Claude, on-device privacy, local version history, or multiple export formats.
+Pick **Open CoDesign** if you want BYOK cost control, any model beyond Claude, on-device privacy, or local version history.
 
 ## Feature matrix
 
@@ -37,9 +37,9 @@ Pick **Open CoDesign** if you want BYOK cost control, any model beyond Claude, o
 | Demo prompts            | **15 ready-to-edit**        | Blank canvas  |
 | Data location           | **Workspace files + JSONL sessions on your machine** | Anthropic servers |
 | Version history         | **Local workspace sessions** | —             |
-| Export                  | **HTML · PDF · PPTX · ZIP · Markdown** | HTML       |
-| Inline element comments | **Yes (AI rewrites only the pinned region)** | — |
-| AI-tunable sliders      | **Yes**                     | —             |
+| Export                  | **HTML · PDF · PPTX · ZIP · Markdown** | Canva · PDF · PPTX · HTML |
+| Inline element comments | **Yes (AI rewrites only the pinned region)** | Yes |
+| AI-tunable sliders      | **Yes**                     | Yes           |
 | Responsive frames       | **Phone · tablet · desktop** | Limited      |
 | Price                   | **Free app (provider or subscription cost only)** | Subscription  |
 
@@ -48,7 +48,7 @@ Pick **Open CoDesign** if you want BYOK cost control, any model beyond Claude, o
 - **BYOK means cost control.** Ship drafts on a cheap model (DeepSeek, local Ollama, GPT-4o-mini), polish on Claude Opus only when it matters.
 - **Data stays on-device.** Your prompts, designs, and any codebase scans never leave your laptop unless you send them to a model provider yourself.
 - **Local version history.** Every iteration is a snapshot you can diff and roll back.
-- **Interactive surface.** Click an element, leave a note, watch the model rewrite only that region. Drag AI-generated sliders to tune color, spacing, and typography without re-prompting.
+- **Interactive edits on your own model.** Click an element, leave a note, and the model you chose rewrites only that region. Drag AI-generated sliders to tune color, spacing, and typography without re-prompting.
 - **Real exports.** PDF via your local Chrome, PPTX via `pptxgenjs`, ZIP asset bundle, Markdown with frontmatter — all lazy-loaded so the cold-start bundle stays lean.
 - **Import or sign in with what you already have.** One click pulls API-key provider configs out of Claude Code or Codex, and ChatGPT subscription users can sign in directly.
 

website/zh/claude-design-alternative.md

@@ -22,7 +22,7 @@ Claude Design 是 Anthropic 提供的托管 Web 应用，跑在 Claude Opus 上
 
 **Claude Design** 适合：想零配置、已经有 Anthropic 订阅、不需要多模型或离线的用户。
 
-**Open CoDesign** 适合：需要 BYOK 成本控制、想用 Claude 之外的模型、在意本地隐私、需要本地版本历史、或需要多种导出格式的用户。
+**Open CoDesign** 适合：需要 BYOK 成本控制、想用 Claude 之外的模型、在意本地隐私、或需要本地版本历史的用户。
 
 ## 功能矩阵
 
@@ -37,9 +37,9 @@ Claude Design 是 Anthropic 提供的托管 Web 应用，跑在 Claude Opus 上
 | 内置 demo               | **15 个即用模板**           | 空白画布      |
 | 数据位置                | **本机工作区文件 + JSONL session** | Anthropic 服务器 |
 | 版本历史                | **本地工作区 session**      | —             |
-| 导出                    | **HTML · PDF · PPTX · ZIP · Markdown** | HTML     |
-| 行内元素评论            | **支持（AI 只改写该区域）** | —             |
-| AI 可调滑块             | **支持**                    | —             |
+| 导出                    | **HTML · PDF · PPTX · ZIP · Markdown** | Canva · PDF · PPTX · HTML |
+| 行内元素评论            | **支持（AI 只改写该区域）** | 支持          |
+| AI 可调滑块             | **支持**                    | 支持          |
 | 响应式框架              | **手机 · 平板 · 桌面**      | 有限          |
 | 价格                    | **应用免费，仅 provider 或订阅成本** | 订阅制        |
 
@@ -48,7 +48,7 @@ Claude Design 是 Anthropic 提供的托管 Web 应用，跑在 Claude Opus 上
 - **BYOK 意味着成本可控。** 草稿用便宜模型（DeepSeek、本地 Ollama、GPT-4o-mini），真正需要时再切 Claude Opus。
 - **数据留在本机。** 提示词、设计稿、代码库扫描都不会离开你的电脑，除非你主动发给模型 provider。
 - **本地版本历史。** 每个 design 都有 JSONL 历史和真实工作区文件，可在本机检查和继续编辑。
-- **可交互的表层。** 点击元素留下评论，模型只改写那一块；拖动 AI 生成的滑块，不用重发提示就能微调颜色、间距、字体。
+- **用你自己的模型做交互式修改。** 点击元素留下评论，你选的模型只改写那一块；拖动 AI 生成的滑块，不用重发提示就能微调颜色、间距、字体。
 - **真实的导出。** PDF 走你本机 Chrome，PPTX 走 `pptxgenjs`，ZIP 打包、Markdown 带 frontmatter，全部按需懒加载。
 - **导入或登录你已有的入口。** 一键读取 Claude Code 或 Codex 的 API key provider 配置；ChatGPT 订阅用户可以直接登录。