InstantAdPay banner kit (kie.ai): hero + leaderboard + rectangle in Promo tools

- 3 brand banners generated via kie.ai (mint-on-dark Web3 aesthetic), served from /banners/
- Promo tools Banners card now shows the kit with copy-image-URL

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

public/assets/my.js

@@ -953,6 +953,33 @@
     const sw = $('promoSwipeWrap');
     sw.innerHTML = '';
     sw.appendChild(promoBlock('Subject: ' + PROMO_SWIPE.subject + '\n\n' + PROMO_SWIPE.body.replace('{{LINK}}', link)));
+    // banner kit
+    const bwrap = $('promoBanners');
+    if (bwrap && !bwrap.dataset.filled) {
+      bwrap.dataset.filled = '1';
+      const BANNERS = [
+        { file: 'iap-hero-1200x630.png', size: '1200×630 (social / hero)' },
+        { file: 'iap-728x90.png', size: '728×90 (leaderboard)' },
+        { file: 'iap-300x250.png', size: '300×250 (rectangle)' }
+      ];
+      bwrap.innerHTML = '';
+      for (const b of BANNERS) {
+        const url = location.origin + '/banners/' + b.file;
+        const d = document.createElement('div');
+        d.className = 'pb-item';
+        d.innerHTML = '<img src="/banners/' + b.file + '" alt="InstantAdPay banner ' + b.size + '" loading="lazy">'
+          + '<div class="pb-row"><span class="pb-size">' + b.size + '</span></div>';
+        const btn = document.createElement('button');
+        btn.className = 'btn small sec';
+        btn.textContent = 'Copy image URL';
+        btn.addEventListener('click', async () => {
+          try { await navigator.clipboard.writeText(url); IAP.status('Banner URL copied.', 'ok'); }
+          catch (e) { IAP.status('Copy failed.', 'bad'); }
+        });
+        d.querySelector('.pb-row').appendChild(btn);
+        bwrap.appendChild(d);
+      }
+    }
   }
 
   // ── profile ── (busy2 defers the busy lookup past its TDZ)