Initialize Hugo website with custom infinite-scroll theme

- Set up complete Hugo project structure with bilingual support (EN/DE)
- Create custom pyx-theme with modern, clean design
- Implement infinite scrolling single-page layout with sections
- Style with white background, black text, and blue accent color
- Add responsive navigation with smooth anchor scrolling
- Move logo assets to static/images directory
- Configure i18n translations for English and German (Swiss spelling)
- Add company data structure in data/company.yaml
- Create archetypes for consistent content frontmatter
- Update CLAUDE.md with comprehensive project documentation

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

themes/pyx-theme/layouts/partials/header.html

@@ -0,0 +1,23 @@
+<header>
+    <nav>
+        <a href="{{ "/" | relLangURL }}" class="logo">
+            <img src="/images/pyx_hires.png" alt="{{ .Site.Title }}">
+        </a>
+
+        <ul>
+            <li><a href="{{ "/" | relLangURL }}#home">{{ i18n "home" }}</a></li>
+            <li><a href="{{ "/" | relLangURL }}#about">{{ i18n "about" }}</a></li>
+            <li><a href="{{ "/" | relLangURL }}#services">{{ i18n "services" }}</a></li>
+            <li><a href="{{ "/" | relLangURL }}#projects">{{ i18n "projects" }}</a></li>
+        </ul>
+
+        <!-- Language switcher -->
+        <ul class="language-switcher">
+            {{ if .IsTranslated }}
+            {{ range .Translations }}
+            <li><a href="{{ .RelPermalink }}">{{ .Language.LanguageName }}</a></li>
+            {{ end }}
+            {{ end }}
+        </ul>
+    </nav>
+</header>