Replace gh CLI dependency with direct GitHub API calls in pr-status script
Use Node.js built-in https module to make GitHub API requests directly,
removing the requirement for the gh CLI to be installed. The script now
reads auth tokens from GITHUB_TOKEN/GH_TOKEN env vars (with gh auth
token as fallback), and handles redirects with proper auth header
stripping for cross-origin requests (e.g., job log downloads).
https://claude.ai/code/session_01HMJMvZoLTzC54SdjVK6WD9