server {
    listen 80;
    server_name _;

    client_max_body_size 20M;

    # /api/* → backend Fastify (strip /api prefix)
    location /api/ {
        rewrite ^/api/(.*) /$1 break;
        proxy_pass http://backend:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;
    }

    # Tout le reste → frontend React (SPA)
    location / {
        proxy_pass http://frontend:80;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}