Complete UX audit P3: API copy URLs, labels, retry, and smoke sync.

Add footer copy-to-clipboard for public APIs, align ops page labels, improve mobile brand lockup, surface WalletConnect posture on wallet tools, add account access discovery, liquidity retry alerts, and refresh smoke-route expectations.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/public/chain138-command-center.html

@@ -152,8 +152,8 @@
 
 <div class="status-note" id="command-center-fallback">
   If diagram rendering is unavailable, use the main explorer operational surfaces directly:
-  <a href="/operations">Operations Hub</a>,
-  <a href="/bridge">Bridge Monitoring</a>,
+  <a href="/operations">Operations hub</a>,
+  <a href="/bridge">Bridge</a>,
   <a href="/routes">Routes</a>,
   <a href="/system">System</a>,
   and <a href="/operator">Operator</a>.