restructure: all-in-one deploy dir — www/ for frontend, context: . for builds

deploy/nginx.conf

@@ -1,22 +0,0 @@
-server {
-    listen 80;
-    server_name _;
-
-    # Serve frontend static files
-    root /usr/share/nginx/html;
-    index index.html;
-
-    # API proxy to Node backend
-    location /api/ {
-        proxy_pass http://backend:3000/api/;
-        proxy_http_version 1.1;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    }
-
-    # Static files - SPA fallback
-    location / {
-        try_files $uri $uri/ /index.html;
-    }
-}