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/Http/Resources/Api/Admin/OrderResource.php

@@ -103,6 +103,8 @@ class OrderResource extends JsonResource
             'note'            => $this->note,
             'client_ip'       => $this->client_ip,
             'status'          => $this->status,
+            'is_starred' => (bool) $this->is_starred,
+            'tags'       => $this->whenLoaded('tags'),
             'created_at'      => $this->created_at,
             'updated_at'      => $this->updated_at,
             'vmwares' => $this->whenLoaded('moduleVmwares', fn() => $this->moduleVmwares->map(fn($vm) => [