Implement Keystone environment deployments

app/Enums/DeployPolicy.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Enums;
+
+use App\Enums\Concerns\Arrayable;
+
+enum DeployPolicy: string
+{
+    use Arrayable;
+
+    case WITH_ENVIRONMENT = 'with_environment';
+    case DEPENDENCY_ONLY = 'dependency_only';
+    case MANUAL_OR_ON_ROUTE_CHANGE = 'manual_or_on_route_change';
+    case MANUAL = 'manual';
+}