06/04 Optimize app

templates/user/dashboard.html

@@ -345,9 +345,22 @@ document.getElementById('site-list').addEventListener('click', function(e) {
 
   /* Undo */
   if (btn.classList.contains('js-undo')) {
-    if (confirm('Remove check for ' + btn.dataset.name + '?')) {
-      btn.closest('form').submit();
-    }
+    if (!confirm('Remove check for ' + btn.dataset.name + '?')) return;
+    var siteName = btn.dataset.name;
+    var formAction = btn.closest('form').action;
+    btn.disabled = true;
+    fetch(formAction, {
+      method: 'POST', credentials: 'same-origin',
+      headers: {'Content-Type': 'application/x-www-form-urlencoded', 'X-CSRFToken': getCsrfToken()},
+      body: ''
+    }).then(function() {
+      var toast = document.createElement('div');
+      toast.className = 'alert alert-info';
+      toast.style.cssText = 'position:fixed;top:1rem;right:1rem;z-index:9999;min-width:220px;box-shadow:var(--shadow)';
+      toast.textContent = '↩ Check removed for ' + siteName;
+      document.body.appendChild(toast);
+      setTimeout(function() { location.reload(); }, 700);
+    });
     return;
   }
 });
@@ -371,13 +384,6 @@ document.getElementById('modal-creds').addEventListener('click', function(e) {
   }
 });
 
-/* ── HTML escape ───────────────────────────────────────────── */
-function esc(str) {
-  return String(str || '').replace(/[&<>"']/g, function(c) {
-    return {'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;'}[c];
-  });
-}
-
 /* ── Health dots — batched with max 4 concurrent requests ─── */
 (function() {
   var cards = Array.from(document.querySelectorAll('.site-card'));