docs: announce Studio Playground in latest updates (#595)

* docs: announce Studio Playground in latest updates

* docs: center Playground preview and collapse older updates

README.md

@@ -49,6 +49,16 @@ users retain control of the durable files.
 
 ## 📰 Latest Updates
 
+- [2026.10] - **[ReMe Studio Playground](https://reme.agentscope.io/studio/?lang=en) is live**: explore example memory
+  files, edit Markdown, and browse linked memory graphs right in your browser—no installation or backend required.
+  Everyone is welcome to [try it out](https://reme.agentscope.io/studio/?lang=en)!
+
+  <p align="center">
+    <a href="https://reme.agentscope.io/studio/?lang=en">
+      <img src="https://raw.githubusercontent.com/agentscope-ai/ReMe/main/reme_studio/figures/studio-overview.png" alt="ReMe Studio workspace preview — click to try the Playground" width="480" style="margin: 0 auto;">
+    </a>
+  </p>
+
 - [2026.09] - **[ReMe Memory Tags](https://reme.agentscope.io/en/blog_20260920) published**: an introduction
   to file-native entity tags, rebuildable tag indexes, and tag-filtered memory search.
 - [2026.09] - **[Hermes Agent memory provider](https://reme.agentscope.io/en/integrations/hermes) available**: choose HTTP or embedded
@@ -62,6 +72,10 @@ users retain control of the durable files.
   [Awesome DSH Plugin](https://awesome-dsh-plugin.com/p/agentscope-ai/ReMe--integrations-dsh/) or
   [npm](https://www.npmjs.com/package/@agentscope-ai/reme-dsh-plugin) for long-term-memory guidance, `reme_search`,
   automatic memory, Auto Dream, and ReMe Status.
+
+<details>
+<summary>More updates</summary>
+
 - [2026.08] - **ReMe blog published**: the [ReMe blog](https://reme.agentscope.io/en/reme-blog) introduces the
   local-first memory architecture, self-evolving workflows, hybrid search, proactive discovery, and benchmark results.
 - [2026.08] - **New ReMe ecosystem plugins**: [Daily Paper](https://reme.agentscope.io/en/plugins/daily-paper)
@@ -77,6 +91,8 @@ users retain control of the durable files.
   paper [Remember Me, Refine Me: A Dynamic Procedural Memory Framework for Experience-Driven Agent Evolution](https://aclanthology.org/2026.findings-acl.829/)
   has been accepted to Findings of ACL 2026.
 
+</details>
+
 ## 🚀 Quick Start
 
 ### Installation

README_ZH.md

@@ -47,6 +47,15 @@
 
 ## 📰 最新动态
 
+- [2026.10] - **[ReMe Studio Playground](https://reme.agentscope.io/studio/?lang=zh) 上线**：无需安装或启动后端，
+  即可在浏览器中浏览示例记忆文件、编辑 Markdown、探索记忆关联图谱。欢迎大家[来体验](https://reme.agentscope.io/studio/?lang=zh)！
+
+  <p align="center">
+    <a href="https://reme.agentscope.io/studio/?lang=zh">
+      <img src="https://raw.githubusercontent.com/agentscope-ai/ReMe/main/reme_studio/figures/studio-overview.png" alt="ReMe Studio 工作区预览，点击体验 Playground" width="480" style="margin: 0 auto;">
+    </a>
+  </p>
+
 - [2026.09] - **[给记忆加上“标签”](https://reme.agentscope.io/zh/blog_20260920)发布**：介绍基于 Markdown 的实体标签、
   可重建 Tag Index 与标签过滤检索。
 - [2026.09] - **[Hermes Agent 记忆 Provider](https://reme.agentscope.io/zh/integrations/hermes) 已可使用**：支持 HTTP 和 Embedded
@@ -57,6 +66,10 @@
 - [2026.09] - **[DeepSeek Harness 插件](https://reme.agentscope.io/zh/integrations/dsh) 发布**：可通过
   [Awesome DSH Plugin](https://awesome-dsh-plugin.com/p/agentscope-ai/ReMe--integrations-dsh/) 或
   [npm](https://www.npmjs.com/package/@agentscope-ai/reme-dsh-plugin) 安装，提供长期记忆指引、`reme_search`、自动记忆、Auto Dream 和 ReMe Status。
+
+<details>
+<summary>更多更新</summary>
+
 - [2026.08] - **ReMe 博客发布**：[ReMe 博客](https://reme.agentscope.io/zh/reme-blog) 系统介绍了本地优先的记忆架构、
   自进化工作流、混合检索、主动发现与评测结果。
 - [2026.08] - **新增 ReMe 生态插件**：[每日论文](https://reme.agentscope.io/zh/plugins/daily-paper) 可自动发现、解析论文并生成文件化简报；
@@ -70,6 +83,8 @@
   我们的论文 [Remember Me, Refine Me: A Dynamic Procedural Memory Framework for Experience-Driven Agent Evolution](https://aclanthology.org/2026.findings-acl.829/)
   已被 Findings of ACL 2026 接收。
 
+</details>
+
 ## 🚀 快速开始
 
 ### 安装