Improved IP detection and display logic to always show IPv4 format, converting IPv6-mapped IPv4 addresses (e.g., ::ffff:127.0.0.1) and IPv6 loopback (::1) to 127.0.0.1. Updated API endpoint, display components, and added dedicated test/debug pages for IP format and detection. Added documentation summarizing the fixes and new features.
Introduced a new IpDisplay component that fetches and shows the user's IP address using the ipify API. Integrated the component into both desktop and mobile navigation areas, with a simplified display for mobile devices.
