update

app/Models/CategoryModel.php

@@ -60,15 +60,17 @@ class CategoryModel extends Model
         $indent = "\u{00A0}\u{00A0}\u{00A0}\u{00A0}"; // 4x twarda spacja na poziom
         $out    = [];
 
-        $walk = static function (int $parentId, int $depth) use (&$walk, &$out, $childrenByParent, $indent): void {
+        $walk = static function (int $parentId, int $depth, string $parentPath) use (&$walk, &$out, $childrenByParent, $indent): void {
             foreach ($childrenByParent[$parentId] ?? [] as $c) {
                 $c['depth']        = $depth;
                 $c['indent_label'] = str_repeat($indent, $depth) . $c['name'];
+                // Pelna sciezka "Nadrzedna → Podrzedna" — jednoznaczna nawet gdy JS uciasnie wciecia.
+                $c['path_label']   = $parentPath === '' ? $c['name'] : $parentPath . ' → ' . $c['name'];
                 $out[]             = $c;
-                $walk((int) $c['id'], $depth + 1);
+                $walk((int) $c['id'], $depth + 1, $c['path_label']);
             }
         };
-        $walk(0, 0);
+        $walk(0, 0, '');
 
         // Sieroty (np. rodzic odfiltrowany typem) — dopnij na koncu bez wciecia
         $seen = array_column($out, null, 'id');
@@ -76,6 +78,7 @@ class CategoryModel extends Model
             if (! isset($seen[$c['id']])) {
                 $c['depth']        = 0;
                 $c['indent_label'] = $c['name'];
+                $c['path_label']   = $c['name'];
                 $out[]             = $c;
             }
         }