Default sort by IP address on page load

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

app/templates/index.html

@@ -328,6 +328,9 @@
     });
   });
 
+  // Sort by IP on initial load
+  document.querySelector('[data-sort="ip"]')?.click();
+
   // ── IP range filter button ─────────────────────────────────────────────────
   const btnIpFilter   = document.getElementById('btn-ip-filter');
   const ipFilterLabel  = document.getElementById('ip-filter-label');