The WebDAV server was narrowed to serve only backups/ (to stop exposing
.env), but the receiver still pulls /backups, /chat-history and /uploads,
so every sync failed with "directory not found". Serve the app root
filtered with --include to just those three folders; everything else
(.env, source, config/key files) returns 404.
Sync Now now saves the typed source IP/port before pulling, since the
pull reads the saved config.
stop-app.sh also frees port 8080: kill -9 on the backend orphans the
rclone child, which then keeps the port with stale settings.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>