Add cancellation and cleanup for native server creation

src/routes/api/deployments/[id]/cancel/+server.ts

@@ -1,7 +1,14 @@
 import { json } from '@sveltejs/kit';
-import { cancelRemoval } from '$lib/server/provisioning/index.js';
+import { cancelRemoval } from '$lib/server/provisioning/history.js';
+import { cancelCreation } from '$lib/server/provisioning/cancel-creation.js';
+import { kickProvisioning } from '$lib/server/pipeline/worker.js';
 
 export function POST({ params }: { params: { id: string } }) {
-    if (!cancelRemoval(params.id)) return json({ error: 'Removal has already begun or this request is no longer waiting. Refresh to see its current state.' }, { status: 409 });
+    const cleanupId = cancelCreation(params.id);
+    if (cleanupId) {
+        void kickProvisioning();
+        return json({ ok: true, cleanupId });
+    }
+    if (!cancelRemoval(params.id)) return json({ error: 'This operation can no longer be cancelled. Refresh to see its current state.' }, { status: 409 });
     return json({ ok: true });
 }