Initial commit: static site + Docker setup for Marszalek Architekten

- Single-page HTML website (no CMS) with portfolio grid, services,
  team and contact sections; content extracted from marszalekarchitekten.at
- 2-page PDF info sheet generated via Puppeteer from HTML template
- nginx:alpine Docker image with custom nginx.conf (caching, gzip, headers)
- docker-compose.yml for Portainer deployment on port 3080

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,7 @@
+FROM nginx:alpine
+
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY index.html /usr/share/nginx/html/
+COPY marszalek-architekten-infosheet.pdf /usr/share/nginx/html/
+
+EXPOSE 80