docs(readme): add Claude Science comparison callout at top of README

Highlight that Dr. Claw has been shipping the same vision since Feb 2026 —
open source, model-agnostic, self-hosted, covering the full research
lifecycle — in a GitHub NOTE alert above the table of contents (EN + zh-CN).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: bbsngg

README.md

@@ -36,6 +36,9 @@
   <a href="./README.md">English</a> | <a href="./README.zh-CN.md">中文</a>
 </p>
 
+> [!NOTE]
+> **Excited about Anthropic's [Claude Science](https://www.anthropic.com/news/claude-science-ai-workbench) (launched June 30, 2026)?** Dr. Claw has been shipping the same vision since **February 2026** — and it's fully **open source**, **model-agnostic** (Claude Code, Gemini CLI, Codex, plus hundreds of models via OpenRouter), and runs **on your own machine** with your own data and GPUs. It also covers the full research lifecycle — survey → ideation → experiments → paper writing → slides & promotion — not just computational analysis. Free to use; no subscription required.
+
 ## Table of Contents
 
 - [Overview](#overview)

README.zh-CN.md

@@ -36,6 +36,9 @@
   <a href="./README.md">English</a> | <a href="./README.zh-CN.md">中文</a>
 </p>
 
+> [!NOTE]
+> **在关注 Anthropic 刚发布的 [Claude Science](https://www.anthropic.com/news/claude-science-ai-workbench)（2026 年 6 月 30 日上线）？** Dr. Claw 从 **2026 年 2 月**起就在践行同样的愿景——而且完全**开源**、**模型无关**（Claude Code、Gemini CLI、Codex，另可通过 OpenRouter 使用数百种模型），跑在**你自己的机器**上，数据和 GPU 都由你掌控。它覆盖科研全生命周期——调研 → 想法生成 → 实验 → 论文写作 → 幻灯片与成果宣传——而不止于计算分析。免费使用，无需订阅。
+
 ## 目录
 
 - [Overview](#overview)