Added testing infrastructure dependencies:
- @playwright/test@^1.58.0 for end-to-end testing
- playwright-lighthouse@^4.0.0 for Lighthouse performance audits
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Sitemap aktualisiert mit neuen Portfolio-Projekten
- package-lock.json aktualisiert
- README.md hinzugefügt
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>