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/Services/ServerService.php

@@ -165,6 +165,20 @@ class ServerService
         }
     }
 
+    public function checkConnectionByServer(DnsServer $server): bool
+    {
+        try {
+            return $this->checkConnection([
+                'username'   => $server->username,
+                'password'   => Crypt::decryptString($server->password),
+                'ip_address' => $server->ip_address,
+            ]);
+        } catch (\Throwable $e) {
+            Log::error($e->getMessage());
+            return false;
+        }
+    }
+
     public function getDomainInfo(string $domain = ''): array|false
     {
         if (empty($domain)) {