work-on-issue-loop

# work-on-issue-loop Drive an issue from "validated" to "PR reviewed to convergence" without stopping in between: implement (work-on-issue), wait for the review bot, resolve what it finds (fix-pr-review), and repeat. Past 5 cycles the bar for "done" relaxes — any LGTM ends the loop — so a PR with recurring minor findings doesn't get fix-pr-review'd forever. Steps 2–5 below are this same convergence loop that `fix-pr-review-loop` runs standalone against any already-open PR — use that skill directly when there's no issue to implement first, just an existing PR to drive to approval. ## Input - Nothing — default to the issue just validated this session, else the latest open issue (`gh issue list --limit 1`). - `#<N>` / `<N>` / full URL / `owner/repo#N`. ## Steps ### 1. Implement, open the PR, and trigger the first review Invoke the `work-on-issue` skill for the issue (Skill tool, `skill: work-on-issue`). It implements the fix in an isolated worktree, verifies it, commits, pushes, and opens the PR (`Closes #<N>`) — it does **not** request review; that's this loop's job. **Gate on its outcome before continuing — work-on-issue can legitimately stop early:** - **Stopped with no PR** (issue already closed, an existing PR already addresses it, wrong repo checked out) → there is nothing to drive; stop and relay its report. - **PR opened** → capture the PR number/URL and the branch, then trigger the first review yourself. Don't wait on CI or poll `gh pr checks` — CI runs in paral...