Fix still-image encodes ending ~50s past audio and refresh support/docs links.

Cap FFmpeg output with probed audio duration (FFmpeg 5.x -shortest bug), point SUPPORT_EMAIL to support@songs2vid.com, and align Hub/README/n8n docs with the Gitea + npm package links.

DOCKERHUB_OVERVIEW.md

@@ -5,9 +5,11 @@ Payment-free, self-hosted software that turns cover art and audio into YouTube v
 **Image:** `atakanozban/songs2vid:latest`  
 **License:** MIT
 
+**Primary source hub:** https://git.atakanozban.com/Songs2VID  
+**Repo:** https://git.atakanozban.com/Songs2VID/songs2vid  
 **Docs:** https://docs.songs2vid.com  
-**Source:** https://git.atakanozban.com/Songs2VID/songs2vid  
-**Hosted SaaS (separate):** https://songs2vid.com
+**n8n (npm):** https://www.npmjs.com/package/n8n-nodes-songs2vid  
+**Web UI (secondary mirror):** https://songs2vid.com
 
 ## Quick start
 
@@ -43,8 +45,11 @@ Next.js 15 · PostgreSQL/Prisma · Redis/BullMQ · NextAuth (Google + YouTube)
 
 ## Links
 
+- Primary source hub: https://git.atakanozban.com/Songs2VID
 - Full documentation: https://docs.songs2vid.com
 - Getting started: https://docs.songs2vid.com/docs/getting-started
 - Environment variables: https://docs.songs2vid.com/docs/environment
 - REST API: https://docs.songs2vid.com/docs/api/overview
 - In-repo API notes: https://git.atakanozban.com/Songs2VID/songs2vid/src/branch/main/docs/api
+- n8n node: https://www.npmjs.com/package/n8n-nodes-songs2vid
+- Web UI: https://songs2vid.com