Address PR Feedback & Fix CI

Drive a pull request to a mergeable state. This skill handles two jobs at once:

1. Review feedback — fetch all PR comments, classify them, apply code fixes, reply, and resolve threads (including stale bot comments).
2. CI failures — read failing check logs, reproduce locally, fix, push, and watch CI back to green.

Both jobs converge on the same code change → verify → commit → push cycle, so they are gathered, planned, and applied together, then CI is watched to completion.

$ARGUMENTS

Steps

1. Identify the target PR

• If the user specifies a PR number, use that.
• Otherwise, detect from the current branch: gh pr view --json number,url,headRefName,baseRefName,state.
• Get OWNER and REPO separately: gh repo view --json owner,name --jq '.owner.login, .name'.