fix-pr-review

# fix-pr-review Take all unaddressed review feedback on a pull request and resolve it fully and autonomously: re-validate each finding against the code, fix the ones that are real, push back on the ones that aren't, and for the judgment calls the reviewer couldn't make — and for the optional improvements — derive and implement the absolute-best solution rather than pausing. Then report back on the PR and request a re-review. Don't stop to ask the user; do the work. **The review is a hypothesis, not a work order.** A reviewer (human or `@claude`) can cite a stale line, misread a conditional, or flag a non-bug. Implementing a wrong suggestion ships a regression with a reviewer's blessing. So every finding is traced to current `file:line` and confirmed *before* you change anything. You are not performing agreement — you are verifying claims and acting only on the ones that hold. ## Input The user provides one of: - Nothing — **default to the PR for the current branch** (`gh pr view`). - `#<N>` / `<N>` / full URL / `owner/repo#N`. If the current branch has no PR and none was given, say so and stop — there's nothing to fix. ## Steps ### 0. Resolve the PR and sync the branch ```bash gh pr view <N|--> --json number,headRefName,headRepositoryOwner,baseRefName,url,state,isDraft,mergeable,mergeStateStatus git fetch origin git branch --show-current ``` - Confirm you are **on the PR's head branch** (`headRefName`). If not, check it out with `gh pr checkout <N>` — it handles fork...