feat: Adiciona field type social_link para redes sociais do usuário

Implementa o field type 'social_link' com seletor de rede e URL de
perfil, composto por:

- SocialLinkItem: field type com colunas 'network' (varchar 64) e
  'url' (varchar 2048), cardinalidade ilimitada
- SocialLinkWidget: widget com select de rede e input de URL
- SocialLinkFormatter: formatter que renderiza links com classe CSS
  por rede (social-link--{network}), target _blank e rel noopener
- config/optional: field.storage e field.field para user
- config/translations/pt-br: tradução do label e description
- hook_install e update_10002: configura form/view displays
- UserInfoBlock: expõe social_links via getSocialLinks()
- Template: adiciona seção de redes sociais e remove referências
  obsoletas a category e dept_code
- translations/site_users.pt-br.po: strings do novo field type

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

site_users.install

@@ -67,6 +67,16 @@ function site_users_install() {
       ]);
     }
 
+    // Campo Redes Sociais.
+    if (!$form_display->getComponent('field_user_social_links')) {
+      $form_display->setComponent('field_user_social_links', [
+        'type' => 'social_link_widget',
+        'weight' => 16,
+        'settings' => [],
+        'region' => 'content',
+      ]);
+    }
+
     // Campo Foto Padrão - oculto no form (será gerenciado via hook_form_alter).
     $form_display->removeComponent('field_user_default_photo');
 
@@ -127,6 +137,17 @@ function site_users_install() {
       ]);
     }
 
+    // Campo Redes Sociais.
+    if (!$view_display->getComponent('field_user_social_links')) {
+      $view_display->setComponent('field_user_social_links', [
+        'type' => 'social_link_formatter',
+        'weight' => 16,
+        'label' => 'above',
+        'settings' => [],
+        'region' => 'content',
+      ]);
+    }
+
     // Campo Foto Padrão.
     if (!$view_display->getComponent('field_user_default_photo')) {
       $view_display->setComponent('field_user_default_photo', [
@@ -212,3 +233,57 @@ function site_users_update_10001() {
 
   return t('Default photo field created successfully.');
 }
+
+/**
+ * Adds the field_user_social_links field for social network profile links.
+ */
+function site_users_update_10002() {
+  // Create field storage if it does not exist.
+  if (!FieldStorageConfig::loadByName('user', 'field_user_social_links')) {
+    FieldStorageConfig::create([
+      'field_name' => 'field_user_social_links',
+      'entity_type' => 'user',
+      'type' => 'social_link',
+      'module' => 'site_users',
+      'cardinality' => -1,
+      'translatable' => FALSE,
+    ])->save();
+  }
+
+  // Create field instance if it does not exist.
+  if (!FieldConfig::loadByName('user', 'user', 'field_user_social_links')) {
+    FieldConfig::create([
+      'field_name' => 'field_user_social_links',
+      'entity_type' => 'user',
+      'bundle' => 'user',
+      'label' => 'Social Links',
+      'description' => 'Social network profile links.',
+      'required' => FALSE,
+    ])->save();
+  }
+
+  // Add to form display.
+  $form_display = EntityFormDisplay::load('user.user.default');
+  if ($form_display && !$form_display->getComponent('field_user_social_links')) {
+    $form_display->setComponent('field_user_social_links', [
+      'type' => 'social_link_widget',
+      'weight' => 16,
+      'settings' => [],
+      'region' => 'content',
+    ])->save();
+  }
+
+  // Add to view display.
+  $view_display = EntityViewDisplay::load('user.user.default');
+  if ($view_display && !$view_display->getComponent('field_user_social_links')) {
+    $view_display->setComponent('field_user_social_links', [
+      'type' => 'social_link_formatter',
+      'weight' => 16,
+      'label' => 'above',
+      'settings' => [],
+      'region' => 'content',
+    ])->save();
+  }
+
+  return t('Social links field created successfully.');
+}