pr-local-preview-maintainer

Check out a GitHub pull request into a local worktree, start it safely, verify the local preview, and hand the user a URL. Use this skill whenever the user asks to run, preview, review, or validate a PR locally, including commands like `gh pr checkout <number>`, "run this PR", "check the local worktree to see the result", "let me review this", or "start PR preview". If the PR affects visible UI, use this skill to capture screenshots before hand-off so the user can inspect the shipped result, not just the URL.