Feature/sd 1440 ia computed breadcrumb based on menu

modules/tide_breadcrumbs/css/breadcrumb.css

@@ -0,0 +1,34 @@
+/**
+ * Styles for the computed breadcrumb trail.
+ */
+.custom-breadcrumb-container {
+  margin-bottom: 1.5rem;
+  padding: 0.5rem 0;
+  border-bottom: 1px solid #eee;
+}
+
+.custom-breadcrumb-container strong {
+  margin-right: 10px;
+  color: #333;
+}
+
+.custom-breadcrumb {
+  display: inline;
+}
+
+.custom-breadcrumb a {
+  text-decoration: none;
+  font-weight: 500;
+  color: #0056b3;
+}
+
+.custom-breadcrumb a:hover {
+  text-decoration: underline;
+}
+
+.custom-breadcrumb .divider {
+  color: #888;
+  padding: 0 8px;
+  font-size: 0.9em;
+  vertical-align: middle;
+}

modules/tide_breadcrumbs/src/BreadcrumbComputedField.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Drupal\tide_breadcrumbs;
+
+use Drupal\Core\Field\FieldItemList;
+use Drupal\Core\TypedData\ComputedItemListTrait;
+use Drupal\node\NodeInterface;
+
+/**
+ * Represents the computed breadcrumb trail field for nodes.
+ *
+ * This field dynamically generates a breadcrumb trail based on the node's
+ * primary site and section site taxonomy terms, bridging multiple menu
+ * structures into a single unified trail.
+ */
+class BreadcrumbComputedField extends FieldItemList {
+  use ComputedItemListTrait;
+
+  /**
+   * Computes the breadcrumb trail value.
+   *
+   * Fetches the trail from the tide_breadcrumbs.breadcrumb_builder service
+   * and populates the field items with 'title' and
+   * 'url' properties for each crumb.
+   */
+  protected function computeValue() {
+    $node = $this->getEntity();
+    // Ensure we are working with a node entity.
+    if (!$node instanceof NodeInterface) {
+      return;
+    }
+
+    /** @var \Drupal\tide_breadcrumbs\TideBreadcrumbBuilder $breadcrumb_service */
+    $breadcrumb_service = \Drupal::service('tide_breadcrumbs.breadcrumb_builder');
+    $trail = $breadcrumb_service->buildFullTrail($node);
+
+    if (!empty($trail) && is_array($trail)) {
+      // Reset the list to ensure no stale data exists during computation.
+      $this->list = [];
+
+      foreach ($trail as $delta => $item) {
+        // Create an item for each crumb in the trail.
+        $this->list[$delta] = $this->createItem($delta, [
+          'title' => $item['title'],
+          'url' => $item['url'],
+        ]);
+      }
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * Overridden to ensure the value is computed before being returned.
+   */
+  public function getValue() {
+    if (!$this->valueComputed) {
+      $this->computeValue();
+    }
+    return parent::getValue();
+  }
+
+}