feat: Configuração de campos editáveis pelo próprio usuário

Adiciona seção na tela de configurações do módulo que permite ao
administrador controlar quais campos do perfil cada usuário pode
editar no próprio perfil, independentemente das permissões de papel.

- site_users.settings.yml: novo grupo user_editable_fields (todos
  habilitados por padrão)
- SiteUsersSettingsForm: fieldset com checkboxes por campo
- site_users.module: site_users_check_profile_field_access() e
  site_users_check_photo_field_access() recebem field_name e
  consultam a config ao verificar 'edit own'; resultado inclui
  cache tag config:site_users.settings
- translations/site_users.pt-br.po: novas strings traduzidas

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/Form/SiteUsersSettingsForm.php

@@ -10,6 +10,22 @@ use Drupal\Core\Form\FormStateInterface;
  */
 class SiteUsersSettingsForm extends ConfigFormBase {
 
+  /**
+   * Returns the list of fields controllable by the admin.
+   *
+   * @return array
+   *   Associative array of field_name => label.
+   */
+  protected function getEditableFields(): array {
+    return [
+      'field_user_name' => $this->t('Full Name'),
+      'field_user_phone' => $this->t('Phone'),
+      'field_user_bio' => $this->t('Biography'),
+      'field_user_social_links' => $this->t('Social Links'),
+      'field_user_photos' => $this->t('Photos'),
+    ];
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -55,6 +71,22 @@ class SiteUsersSettingsForm extends ConfigFormBase {
       '#maxlength' => 255,
     ];
 
+    // Fieldset para campos editáveis pelo próprio usuário.
+    $form['user_editable_fields'] = [
+      '#type' => 'fieldset',
+      '#title' => $this->t('User-editable profile fields'),
+      '#description' => $this->t('Select which fields users with the "Edit own user profile fields" or "Manage own user photos" permission can edit on their own profile.'),
+      '#tree' => TRUE,
+    ];
+
+    foreach ($this->getEditableFields() as $field_name => $label) {
+      $form['user_editable_fields'][$field_name] = [
+        '#type' => 'checkbox',
+        '#title' => $label,
+        '#default_value' => $config->get('user_editable_fields.' . $field_name) ?? TRUE,
+      ];
+    }
+
     return parent::buildForm($form, $form_state);
   }
 
@@ -62,10 +94,18 @@ class SiteUsersSettingsForm extends ConfigFormBase {
    * {@inheritdoc}
    */
   public function submitForm(array &$form, FormStateInterface $form_state) {
-    $this->config('site_users.settings')
+    $config = $this->config('site_users.settings');
+
+    $config
       ->set('photos.max_count', $form_state->getValue('photos_max_count'))
-      ->set('photos.ldap_attribute', $form_state->getValue('photos_ldap_attribute'))
-      ->save();
+      ->set('photos.ldap_attribute', $form_state->getValue('photos_ldap_attribute'));
+
+    $editable = $form_state->getValue('user_editable_fields');
+    foreach (array_keys($this->getEditableFields()) as $field_name) {
+      $config->set('user_editable_fields.' . $field_name, (bool) ($editable[$field_name] ?? FALSE));
+    }
+
+    $config->save();
 
     parent::submitForm($form, $form_state);
   }