fix: data-action delegation + convert onclick to event listeners, sidebar+logout+modals

public/js/utils.js

@@ -60,5 +60,11 @@ const U = {
       document.querySelector('.btn-confirm-cancel').onclick = () => { App.closeModal(); resolve(false); };
       document.querySelector('.btn-confirm-ok').onclick = () => { App.closeModal(); resolve(true); };
     });
+  },
+
+  bindClicks(container, handlers) {
+    for (const [selector, fn] of Object.entries(handlers)) {
+      container.querySelectorAll(selector).forEach(el => el.addEventListener('click', fn));
+    }
   }
 };