Research bash loop simplification techniques

[BlakeASmith]

Add comment-based iteration macros (# for VAR in LIST ... # endfor) to simplify writing Bash loops in Argorator scripts, which expand to standard for loops and automatically define loop variables.

---

[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
_{Learn more about Cursor Agents}