feat: Implement staff management features; add controller, service, resource, routes, and tests for staff and category assignments

app/Domains/Staff/Resources/StaffResource.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Domains\Staff\Resources;
+
+use App\Domains\Auth\Models\User;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+/** @mixin User */
+class StaffResource extends JsonResource
+{
+    /** @return array<string, mixed> */
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            'nombre_apellido' => $this->nombre_apellido,
+            'dni' => $this->dni,
+            'email' => $this->email,
+            'rol_codigo' => $this->rol_codigo,
+            'role' => $this->whenLoaded('role', fn () => [
+                'codigo' => $this->role?->codigo,
+                'nombre' => $this->role?->nombre,
+            ]),
+            'categories' => $this->whenLoaded('scanCategories', fn () => $this->scanCategories
+                ->map(fn ($category) => [
+                    'id' => $category->id,
+                    'nombre' => $category->nombre,
+                ])->values()),
+        ];
+    }
+}