Generate `hero.png` for this folder in Hero Studio. It is the page-header image, reused on the homepage and the screensaver; the page overlays live stats on its lower third, so the image carries the title and artwork only.

New app/skill heroes MUST come from Hero Studio (the server rejects anything else with HERO_STUDIO_REQUIRED; the studio stamps provenance into the PNG and exports at 2000x1250):

1. `adom-wiki pkg install adom/hero-studio`
2. start it (`hero-studio`, port 8846) and open the webview so the human sees it
3. pose the hero (the UI, or POST /state), then Generate
4. copy `generated/latest.png` here as `docs/hero.png`
