feat: implement brace expansion as strict subset of bash#273

wolfv wants to merge 2 commits intomainprefix-dev/shell:mainfrom

claude/brace-expansion-strict-011CV1cr6ktJxfkeuQT8X25Dprefix-dev/shell:claude/brace-expansion-strict-011CV1cr6ktJxfkeuQT8X25DCopy head branch name to clipboard