Phase 92 complete:
- SVG clipboard icon przy nazwie w sekcji Dane zamawiajacego
- navigator.clipboard.writeText() z wizualnym feedbackiem (checkmark 1.5s)
- Style .copy-btn-inline i .copy-name-row
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Implemented buildUserAgent() method in AllegroApiClient, AllegroOAuthClient, and AllegroTrackingService to include User-Agent header in all HTTP requests to Allegro API.
- Updated .env.example to include APP_VERSION and ALLEGRO_USER_AGENT_URL for configuration.
- Created public /info page to provide application details required by Allegro, including app name, version, description, and contact information.
- Added minimalist layout for public pages to ensure a professional appearance.
- Ensured all changes comply with Allegro's API requirements for User-Agent header.
