cleanup: remove .claude/ from .gitignore

This is a user-specific directory that shouldn't be tracked in the
project's .gitignore. Users who need it can add it to their global
gitignore instead.

Author: Nissan Pow

.gitignore

@@ -36,6 +36,3 @@ stubs/version.py
 # devtools
 .devtools
 
-# claude code
-.claude/
-