feat: Add DNS management resources and importer

- Implemented DomainCollection, DomainDetailResource, DomainNSCollection, DomainNSResource, and DomainResource for handling DNS domain and record data.
- Created VpsServiceCollection and VpsServiceResource for VPS service management.
- Added DnsManagerNS and DnsManagerUser models to represent DNS records and user associations.
- Developed AdminZoneDnsSqlImporter for importing DNS data from SQL dumps, including customer and DNS domain records.
- Added migration scripts to update the customers table with new fields and sync foreign key references for DNS tables.
- Created a migration preview document outlining the mapping and schema changes for the admin zone DNS import.

app/Http/Resources/Api/Service/VpsServiceResource.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Http\Resources\Api\Service;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class VpsServiceResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        $orderItem = $this->orderItem;
+        $product = $orderItem?->product;
+
+        return [
+            'id' => $this->id,
+            'uuid' => $this->uuid,
+            'server_name' => $this->server_name,
+            'status' => $this->status,
+            'status_label' => $this->status_label,
+            'auto_renew' => (bool) $this->auto_renew,
+            'started_at' => $this->started_at?->toISOString(),
+            'expires_at' => $this->expires_at?->toISOString(),
+            'os' => [
+                'version' => $orderItem?->os?->version,
+                'group' => $orderItem?->os?->osGroup?->name,
+            ],
+            'product' => $product ? [
+                'id' => $product->id,
+                'name' => $product->name,
+                'slug' => $product->slug,
+                'product_type' => $product->product_type,
+                'page_type' => 'service_vps',
+            ] : null,
+            'specs' => $product ? [
+                'cpu' => (int) ($product->cpu ?? 0),
+                'ram' => (int) ($product->ram ?? 0),
+                'disk' => (int) ($product->disk ?? 0),
+                'bandwidth' => (int) ($product->bandwidth ?? 0),
+                'gpu' => $product->gpu,
+            ] : null,
+        ];
+    }
+}