This page was served without its application bundle, so nothing could start.
Open the browser’s network tab and find the failing script. If it points at /src/main.tsx, GitHub Pages is publishing the repository root: set Settings → Pages → Build and deployment → Source to GitHub Actions and re-run the latest workflow. If it points at a built /assets/ file that 404s, the base path does not match the repository name — Pages paths are case-sensitive.
docs/DECISIONS.md · 0010, 0011