watch-pr-comments

Same contract as watch-pr (target PR, time budget, the flick for drafts, the existing-threads pass, the sub-agent, the humans word), narrowed to reviews. CI is not yours here: a red check does not wake you, and green is not a stop.

python3 <git-skill-dir>/scripts/pr-watch.py watch --pr <N> --repo <OWNER/REPO> --watcher <id> --until closed --on review,comment,state --max-total <s>

Address BOTREVIEW items as they land, human comments per the watch-pr rule. On DONE: digest of what was answered, what was pushed back on, what waits on me.