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.

integrations/n8n/package.json

@@ -10,10 +10,10 @@
     "youtube"
   ],
   "license": "MIT",
-  "homepage": "https://songs2vid.com/docs/n8n",
+  "homepage": "https://git.atakanozban.com/Songs2VID",
   "author": {
     "name": "Songs2VID",
-    "url": "https://songs2vid.com"
+    "url": "https://git.atakanozban.com/Songs2VID"
   },
   "repository": {
     "type": "git",
@@ -21,7 +21,7 @@
     "directory": "integrations/n8n"
   },
   "bugs": {
-    "url": "https://songs2vid.com/docs/n8n"
+    "url": "https://git.atakanozban.com/Songs2VID/songs2vid/issues"
   },
   "main": "index.js",
   "scripts": {