fix(docs): correct Claude Code version to 2.1.97 across all footers

The latest Claude Code release is 2.1.97, not 2.3.0 (which is this
guide's own version). Update all 20 "Claude Code Version" footer lines
to accurately reflect the documented Claude Code version.

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

zh/01-slash-commands/README.md

@@ -549,7 +549,7 @@ allowed-tools: Bash(npm *), Bash(git *)
 ---
 
 **最后更新**: 2026 年 4 月 9 日
-**Claude Code 版本**: 2.3.0
+**Claude Code 版本**: 2.1.97
 
 ---
 

zh/CATALOG.md

@@ -518,4 +518,4 @@ claude mcp add github -- npx -y @modelcontextprotocol/server-github
 ---
 
 **最后更新**: 2026 年 4 月 9 日
-**Claude Code 版本**: 2.3.0
+**Claude Code 版本**: 2.1.97

zh/STYLE_GUIDE.md

@@ -598,7 +598,7 @@ docs(skills): Add comprehensive code review skill
 ```markdown
 ---
 **Last Updated**: March 2026
-**Claude Code Version**: 2.3.0
+**Claude Code Version**: 2.1.97
 **Compatible Models**: Claude Sonnet 4.6, Claude Opus 4.6, Claude Haiku 4.5
 ```