docs: add CLAUDE.md repository guidelines

🤖 Generated with Claude Code

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

Author: jzhu

CLAUDE.md

@@ -0,0 +1,14 @@
+# CLAUDE.md — Repository guidelines for AI-assisted edits
+
+This file documents repository-level expectations and instructions intended to guide contributors and AI-assisted editing tools (like Claude Code) when making changes in this project.
+
+- Ask for approval before any git commit and push
+- Always run tests before completing all development of new changes
+- Always test the CLI usages
+- After any changes, run the folling to reinstall the project:
+```
+rm -rf dist/*
+./install.sh uninstall
+./install.sh
+cp ~/.config/code-assistant-manager/settings.json.bak ~/.config/code-assistant-manager/settings.json
+```