feat(digitalocean): add droplet provisioning support

tests/Feature/ModelFillableCreationTest.php

@@ -84,6 +84,8 @@ it('creates Server with all fillable attributes', function () {
         'team_id' => $this->team->id,
         'hetzner_server_id' => 'htz-12345',
         'hetzner_server_status' => 'running',
+        'digitalocean_droplet_id' => 987654,
+        'digitalocean_droplet_status' => 'active',
         'is_validating' => false,
         'detected_traefik_version' => 'v2.10.0',
         'traefik_outdated_info' => 'Up to date',
@@ -101,6 +103,8 @@ it('creates Server with all fillable attributes', function () {
     expect($server->cloud_provider_token_id)->toBe($cloudToken->id);
     expect($server->hetzner_server_id)->toBe('htz-12345');
     expect($server->hetzner_server_status)->toBe('running');
+    expect($server->digitalocean_droplet_id)->toBe(987654);
+    expect($server->digitalocean_droplet_status)->toBe('active');
     expect($server->ip_previous)->toBe('10.0.0.1');
 });