[anthropics/claude-code] v2.1.63

## 개요

## What's changed

- Added `/simplify` and `/batch` bundled slash commands
- Fixed local slash command output like /cost appearing as user-sent messages instead of system messages in the UI
- Project 

**출처**: [https://github.com/anthropics/claude-code/releases/tag/v2.1.63](https://github.com/anthropics/claude-code/releases/tag/v2.1.63)