Add n8n community node, /api/v1/render alias, and job webhooks for OSS automation.

Payment-free self-hosted builds keep full API access with optional webhookUrl callbacks and the published n8n-nodes-songs2vid package source under integrations/n8n.

app/api/v1/jobs/route.ts

@@ -35,12 +35,15 @@ export async function POST(req: NextRequest) {
     const job = await createVideoJob(user, {
       imagePath: body.imagePath,
       items,
+      webhookUrl: body.webhookUrl ?? null,
     });
 
     return NextResponse.json({
       jobId: job.id,
       itemCount: job.items.length,
       status: job.status,
+      statusUrl: `/api/v1/jobs/${job.id}`,
+      webhookUrl: body.webhookUrl ?? null,
       playlist: playlist
         ? { id: playlist.id, title: playlist.title, privacy: playlist.privacy }
         : null,