chore: remove claude.md from gitignore

Author: danieltruong

.gitignore

@@ -56,7 +56,6 @@ Thumbs.db
 convert-scss-vars-to-css-vars.sh
 convert-slash-comments.sh
 migrate-scss-to-css.sh
-claude.md
 
 # Internal AI assistant notes
 .github/copilot-instructions.md