Send UI downloads into Movies library and harden queue API.

UI grabs write Movies/<Title (Year)>/; chown to 1000:1000; CORS and safer /api/queue handling for the Web UI.

.env.example

@@ -20,3 +20,8 @@ WEBSHARE_PASSWORD=
 # DOWNLOAD_PATH=/downloads/webshare
 # MEDIA_ROOT=/data
 # MAX_CONCURRENT_DOWNLOADS=2
+
+# UI downloads → Jellyfin Movies library (container path)
+# MOVIES_PATH=/data/Movies
+# DOWNLOAD_UID=1000
+# DOWNLOAD_GID=1000