- Created build-time templating system using existing build-html.cjs
- Extracted index.html into source template with partials:
_styles_index.html, _nav_index.html, _modals.html
- All 4 templated pages (index, impressum, privacy, terms) use partials
- docs.html excluded (Swagger UI, completely different structure)
- Added HTML build step to Dockerfile
- Built output is byte-identical to original files