update environment configuration, enhance setup guide, and align documentation with new domain structure

docker-compose.prod.yml

@@ -49,7 +49,7 @@ services:
     ports:
       - "${NGINX_PORT:-8080}:80"
     volumes:
-      - ./data/hls:/usr/share/nginx/html/hls:ro
+      - ./data/hls:/srv/hls:ro
     networks:
       - linearvoid-net
     depends_on: