fix(32): CR-04 take widget actions dispatched from connectedCallback

WidgetField assigned its element after append(), so an action the element
dispatched from connectedCallback (inside append) found no target and was
dropped without a result or an error state; widgets that load on connect
never started. The element is now the action target before it is connected.
Rebuilt the embedded admin dist.

admin/src/components/form/fields/WidgetField.vue

@@ -158,8 +158,10 @@ onMounted(async () => {
     created.setAttribute('label', props.field.actionLabel || props.field.label || props.field.name)
     created.setAttribute('busy-label', t('backend::lang.extension.busy'))
     created.addEventListener(WIDGET_EVENT, listener)
-    mountPoint.value.append(created)
+    // The element is the action target before it is connected: an action
+    // its connectedCallback dispatches (inside append) is taken, not dropped.
     element = created
+    mountPoint.value.append(created)
     status.value = 'ready'
   } catch {
     if (!unmounted) {