Header: Leaderboard link

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

public/assets/blog-page.js

@@ -1,2 +1,2 @@
 // public blog pages: the shared nav (with wallet status) and footer, nothing else
-(function () { try { IAP.renderNav('blog'); } catch (e) {} })();
+(function () { try { IAP.renderNav(location.pathname.indexOf('/leaderboard') === 0 ? 'leaderboard' : 'blog'); } catch (e) {} })();

public/assets/common.js

@@ -32,6 +32,7 @@ window.IAP = (function () {
       + '<a href="/#how" data-p="home">How it works</a>'
       + '<a href="/#packages" data-p="pricing">Ad packages</a>'
       + '<a href="/ledger" data-p="ledger">Live ledger</a>'
+      + '<a href="/leaderboard" data-p="leaderboard">Leaderboard</a>'
       + '<a href="/contract" data-p="contract">The contract</a>'
       + '<a href="/my" data-p="my">Members</a>'
       + '</span><span id="navWallet" class="muted">…</span></div>';