Add fetchHostInfo() call to the 30-second auto-refresh setInterval loop
for expanded host cards. This ensures the Connectivity table and RTT
charts update in real-time without requiring the user to collapse and
re-expand the host card.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DEimzMv4Q5EjFg3hoiZ69T