Bounded review-apply-resolve convergence loop for a GitHub PR, drafts included. Runs up to N=5 iterations of pr-reviewer → implement-suggestion (--resolve-all) → polish simplify, converging until every review thread is resolved through a fix OR a reply, so the PR ends with zero open threads and only genuine human-judgment flags left open. Convergence also means CI is not red: each push is check-read and a red mechanical failure delegated to ci-auto-fix (--no-ci). On convergence it refreshes the PR description (--no-refresh) and, on a UI PR, runs ui-verify against the live preview once, report-only (--no-preview-run). When the last review still stands (unmoved head, open unreplied threads), iteration 1 applies before re-reviewing. --merge squash-merges on a clean convergence, an approving verdict, and green CI. Run it at the TOP LEVEL of a session holding a sub-agent dispatch tool, never nested in a sub-agent. Use after opening a draft PR to converge it before undrafting. Triggers on "/review-loop".