Copilot Review Fixer

Wraps the task-agent:copilot-review-fixer sub-agent so it can be invoked as a workflow step.

Arguments (key=value form):

• pr_url=<url> — full GitHub PR URL (e.g. https://github.com/owner/repo/pull/42). Required.
• repo=<owner/repo> — repository in owner/repo format. Required.
• branch=<branch> — branch name the PR is on. Required.

What to do

Step 1 — Parse arguments

Parse pr_url, repo, and branch from the invocation arguments.

Derive:

• OWNER and REPO_NAME from repo (split on /)
• PR_NUMBER from the last path segment of pr_url