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.

README.md

@@ -43,13 +43,15 @@ OSS does not force a free-tier SaaS badge paywall.
 - 💧 Custom watermarks (badge, text, or logo) and curated or uploaded fonts
 - ▶️ YouTube playlists, privacy, tags, resolution, categories
 - 🔌 REST API for automation (keys under **Dashboard → Settings → API key**)
+- 🤖 n8n community node [`n8n-nodes-songs2vid`](https://www.npmjs.com/package/n8n-nodes-songs2vid) + optional `webhookUrl` callbacks
 - 🔓 Always-on self-hosted entitlements (no quota paywall)
 
 ## 📚 API documentation
 
-- In-repo: [docs/api/overview.md](./docs/api/overview.md) and [docs/api/endpoints.md](./docs/api/endpoints.md)
+- In-repo: [docs/api/overview.md](./docs/api/overview.md), [docs/api/endpoints.md](./docs/api/endpoints.md), [docs/n8n.md](./docs/n8n.md)
 - Live site: [docs.songs2vid.com/docs/api/overview](https://docs.songs2vid.com/docs/api/overview)
 - Machine-readable discovery: `GET /api/v1` (no auth; no billing routes)
+- Node package source: [`integrations/n8n`](./integrations/n8n/)
 
 ## 🛠️ Local development