Ledger/earnings rows show when; Earn credits: never your own ads; burner sets Polygon fees + rotates RPCs on node errors

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

public/assets/common.js

@@ -100,7 +100,8 @@ window.IAP = (function () {
   function feedRow(ev, c) {
     const div = document.createElement('div');
     div.className = 'row t-' + ev.type;
-    div.innerHTML = '<span>' + describeEvent(ev, c) + '</span>'
+    const when = ev.ts ? new Date(ev.ts).toLocaleString(undefined, { month: 'short', day: 'numeric', hour: 'numeric', minute: '2-digit' }) : '';
+    div.innerHTML = (when ? '<span class="when" title="' + new Date(ev.ts).toLocaleString() + '">' + when + '</span>' : '') + '<span>' + describeEvent(ev, c) + '</span>'
       + (c.explorer
         ? '<span class="tx"><a target="_blank" rel="noopener" href="' + c.explorer + '/tx/' + ev.tx + '">verify ↗</a></span>'
         : '<span class="tx"><a href="/tx/' + ev.tx + '">verify ↗</a></span>'); // built-in viewer when the chain has no public explorer