fix(tools): release openwebui-skills-manager v0.2.1

- Add GitHub skills-directory auto-discovery for install_skill batch install from tree root URLs.

- Harden language detection with frontend-first fallback (__event_call__ + timeout), then headers/profile.

- Bump plugin/docs versions to 0.2.1 and sync bilingual README/docs/index entries.

docs/plugins/tools/index.md

@@ -4,4 +4,4 @@ OpenWebUI native Tool plugins that can be used across models.
 
 ## Available Tool Plugins
 
-- [OpenWebUI Skills Manager Tool](openwebui-skills-manager-tool.md) (v0.2.0) - Simple native skill management (`list/show/install/create/update/delete`).
+- [OpenWebUI Skills Manager Tool](openwebui-skills-manager-tool.md) (v0.2.1) - Simple native skill management (`list/show/install/create/update/delete`).

docs/plugins/tools/index.zh.md

@@ -4,4 +4,4 @@
 
 ## 可用 Tool 插件
 
-- [OpenWebUI Skills 管理工具](openwebui-skills-manager-tool.zh.md) (v0.2.0) - 简化技能管理（`list/show/install/create/update/delete`）。
+- [OpenWebUI Skills 管理工具](openwebui-skills-manager-tool.zh.md) (v0.2.1) - 简化技能管理（`list/show/install/create/update/delete`）。

docs/plugins/tools/openwebui-skills-manager-tool.md

@@ -1,9 +1,14 @@
 # OpenWebUI Skills Manager Tool
 
-**Author:** [Fu-Jie](https://github.com/Fu-Jie/openwebui-extensions) | **Version:** 0.2.0 | **Project:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions)
+**Author:** [Fu-Jie](https://github.com/Fu-Jie/openwebui-extensions) | **Version:** 0.2.1 | **Project:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions)
 
 A standalone OpenWebUI Tool plugin for managing native Workspace Skills across models.
 
+## What's New
+
+- Added GitHub skills-directory auto-discovery for `install_skill` (e.g., `.../tree/main/skills`) to install all child skills in one request.
+- Fixed language detection with robust frontend-first fallback (`__event_call__` + timeout), request header fallback, and profile fallback.
+
 ## Key Features
 
 - Native skill management

docs/plugins/tools/openwebui-skills-manager-tool.zh.md

@@ -1,9 +1,14 @@
 # OpenWebUI Skills 管理工具
 
-**Author:** [Fu-Jie](https://github.com/Fu-Jie/openwebui-extensions) | **Version:** 0.2.0 | **Project:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions)
+**Author:** [Fu-Jie](https://github.com/Fu-Jie/openwebui-extensions) | **Version:** 0.2.1 | **Project:** [OpenWebUI Extensions](https://github.com/Fu-Jie/openwebui-extensions)
 
 一个可跨模型使用的 OpenWebUI 原生 Tool 插件，用于管理 Workspace Skills。
 
+## 最新更新
+
+- `install_skill` 新增 GitHub 技能目录自动发现（例如 `.../tree/main/skills`），可一键安装目录下所有子技能。
+- 修复语言获取逻辑：前端优先（`__event_call__` + 超时保护），并回退到请求头与用户资料。
+
 ## 核心特性
 
 - 原生技能管理