docs: Clean up CLAUDE.md file

- Remove imported content from Project Claude
- Simplify title and remove redundant metadata
- Minor wording improvement in testing instructions

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: zhujian0805

CLAUDE.md

@@ -1,18 +1,10 @@
-
-Prompt: Imported from Project Claude (2025-11-26 00:58)
-Description: Imported from /home/jzhu/code-assistant-manager/CLAUDE.md
-Status: disabled
-ID: imported-project-claude-1764118687
-
-Content:
-
-# CLAUDE.md — Repository guidelines for AI-assisted edits
+# CLAUDE.md — Claude Code Assistant Instructions
 
 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
+- Always test the CLI usages for the change related
 - Never commit credentials, keys, .env files
 - After any changes, run the folling to reinstall the project:
 ```