Remove static/dist volume mount causing nginx 403 on Pi

The mount overrides the built-in frontend with local directory that
may not exist on Pi, causing 403 Forbidden errors.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -13,7 +13,6 @@ services:
     network_mode: "host" # Use host network for device access
     volumes:
       - ./nginx.conf:/etc/nginx/conf.d/default.conf:ro
-      - ./static/dist:/usr/share/nginx/html:ro  # Mount local build for dev without rebuild
     depends_on:
       - backend
     container_name: dune-weaver-frontend