#260: replace Success! feedback text with a checkmark so buttons do not resize

internal/web/static/new.js

@@ -197,7 +197,7 @@ function finishCreate(data) {
     try {
       navigator.clipboard.writeText(url);
       copyBtn.classList.add('ok');               // in-place success feedback (#53)
-      copyBtn.textContent = 'Success!';
+      copyBtn.textContent = '✓';
       setTimeout(() => { copyBtn.classList.remove('ok'); copyBtn.textContent = '⧉'; }, 2000);
     } catch(e) { toast('Copy failed', 'error'); }
   });

internal/web/static/paste.js

@@ -20,7 +20,7 @@ function copyFeedback(btn) {
   if (!btn) return;
   if (!btn.dataset.label) btn.dataset.label = btn.textContent; // remember the original label (Copy/Link)
   btn.classList.add('ok');
-  btn.textContent = 'Success!';
+  btn.textContent = '✓';
   clearTimeout(btn._okh);
   btn._okh = setTimeout(() => { btn.classList.remove('ok'); btn.textContent = btn.dataset.label; }, 2000);
 }