feat(admin): star/tags marks, service product-type filter, campaign bulk actions, SMTP test

- Star (is_starred) and colored tags for services, customers, orders, invoices:
  Markable trait, tags/taggables tables, PATCH administrator/marks/{type}/{key},
  tag CRUD, list filters starred / tag_ids[]
- GET administrator/services accepts product_type (falls back to product type
  for legacy rows without services.type)
- Mail campaigns: bulk cancel / retry failed / delete; cancelled campaigns are
  skipped by SendMailCampaignRecipient
- POST administrator/settings/test-smtp sends a test email through the saved
  mail transport

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/Repositories/Customer/CustomerRepository.php

@@ -28,7 +28,7 @@ class CustomerRepository extends BaseRepository implements CustomerRepositoryInt
         array $select = ['*'],
         bool $returnQuery = false
     ) {
-        $model = $this->model->with($relationships)->select($select);
+        $model = $this->model->with($relationships)->select($select)->marked($data);
         if (isset($data['filter']) && ! empty($data['filter'])) {
             $model = $model->where(function ($query) use ($data) {
                 $filter = trim($data['filter']);