End-to-end lifecycle automation

Zoom out from any one beat and this is the whole loop, running automatically on every future change to this repo:

Issue → Copilot drafts PR → Copilot Code Review → Agent Merge →
GitHub Actions (build + supply-chain security + deploy) → GitHub Pages

You set this up once, on this repo, in an afternoon. From then on, every feature request, every dependency bump, every content change moves through the same reviewed, secured, deployed path — with no step depending on someone remembering to do it.

That's the payoff of "shipping with AI": not that AI writes the code, but that the whole pipeline around the code keeps itself healthy.