Merge pull request #35 from zhujian0805/main

fix the issue when cam update it delete npm packages

Author: zhujian0805

code_assistant_manager/tools/base.py

@@ -222,10 +222,6 @@ def _perform_upgrade(self, desc: str, install_cmd: str) -> dict:
         messages = []
         messages.append(f"Starting upgrade for {desc}")
 
-        # Pre-upgrade cleanup for npm packages
-        if install_cmd.strip().startswith(("npm install", "npm i")):
-            self._cleanup_npm_package(install_cmd, messages)
-
         # Use the new upgrade system
         try:
             # Create the appropriate installer