Add Windows installation scripts

- Add install.ps1 (PowerShell one-liner)
- Add install.bat (Batch script for double-click)
- Update README.md with Windows instructions

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

README.md

@@ -12,12 +12,22 @@ Skills 是 Claude Code 的扩展模块，为特定的领域或任务提供专业
 
 ### 一键安装脚本
 
+**macOS / Linux:**
 ```bash
 bash <(curl -s https://git.let5see.xyz/let5see/skills/raw/main/install.sh)
 ```
 
+**Windows (PowerShell):**
+```powershell
+irm https://git.let5see.xyz/let5see/skills/raw/main/install.ps1 | iex
+```
+
+**Windows (批处理):**
+下载 `install.bat` 文件，双击运行
+
 ### 手动安装步骤
 
+**macOS / Linux:**
 ```bash
 # 1. 克隆仓库
 git clone https://git.let5see.xyz/let5see/skills.git ~/tmp-skills
@@ -32,6 +42,21 @@ rm -rf ~/tmp-skills
 ls ~/.claude/skills/
 ```
 
+**Windows:**
+```powershell
+# 1. 克隆仓库
+git clone https://git.let5see.xyz/let5see/skills.git $env:TEMP\tmp-skills
+
+# 2. 复制所有 skills 到本地
+Copy-Item -Recurse $env:TEMP\tmp-skills\* $env:USERPROFILE\.claude\skills\
+
+# 3. 清理临时文件
+Remove-Item -Recurse -Force $env:TEMP\tmp-skills
+
+# 4. 验证安装
+dir $env:USERPROFILE\.claude\skills\
+```
+
 ## 可用 Skills
 
 ### codex-collab
@@ -67,6 +92,7 @@ Claude Code：[自动触发 codex-collab skill]
 
 ## 目录结构
 
+**macOS / Linux:**
 ```
 ~/.claude/skills/
 ├── codex-collab/
@@ -79,6 +105,19 @@ Claude Code：[自动触发 codex-collab skill]
 │       └── complete-session.md
 ```
 
+**Windows:**
+```
+%USERPROFILE%\.claude\skills\
+├── codex-collab\
+│   ├── SKILL.md
+│   └── references\
+│       ├── code-review.md
+│       ├── requirement-analysis.md
+│       ├── design-proposal.md
+│       ├── debug-analysis.md
+│       └── complete-session.md
+```
+
 ## 更新 Skills
 
 ```bash
@@ -95,9 +134,14 @@ A: Claude Code 目前仅支持 GitHub URL 格式的技能仓库。自托管仓
 
 ### Q: 如何卸载某个 skill？
 
-A: 删除对应的目录即可：
+**macOS / Linux:**
 ```bash
-rm -rf ~/.claude/sills/skill-name
+rm -rf ~/.claude/skills/skill-name
+```
+
+**Windows:**
+```powershell
+Remove-Item -Recurse -Force $env:USERPROFILE\.claude\skills\skill-name
 ```
 
 ### Q: 如何贡献新的 skill？