Fix UX audit gaps: tablet nav, footer, wallet connect, legacy demotion.

Close the 1024–1279px nav dead zone, align ops/footer labels, split homepage quick links, route successful wallet connect to /wallet with inline errors, add WETH to ops sub-nav, and demote legacy SPA with noindex plus banner.

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

frontend/src/data/explorerOperations.ts

@@ -332,6 +332,11 @@ export const explorerOperationsSurfaces: ExplorerOperationsSurface[] = [
     label: 'Liquidity',
     description: 'PMM access points and planner capabilities.',
   },
+  {
+    href: '/weth',
+    label: 'WETH',
+    description: 'Wrapped-asset references and bridge context.',
+  },
   {
     href: '/pools',
     label: 'Pools',