improvement: a port issue for local dev fixed.

infrastructure/nginx/http-only.dev.conf

@@ -0,0 +1,54 @@
+# Dev docker-compose only: local `npm run dev` uses port 3001 (see frontend package.json).
+# Staging / registry stacks use http-only.conf (frontend:3000).
+
+upstream dyolink_backend {
+    server backend:3000;
+    keepalive 32;
+}
+
+upstream dyolink_frontend {
+    server frontend:3001;
+    keepalive 32;
+}
+
+server {
+    listen 80;
+    listen [::]:80;
+    server_name _;
+
+    client_max_body_size 50M;
+
+    location / {
+        proxy_pass http://dyolink_frontend;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection 'upgrade';
+        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 $scheme;
+        proxy_cache_bypass $http_upgrade;
+        proxy_read_timeout 300;
+        proxy_connect_timeout 300;
+    }
+
+    location /api {
+        proxy_pass http://dyolink_backend;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection 'upgrade';
+        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 $scheme;
+        proxy_cache_bypass $http_upgrade;
+        proxy_read_timeout 300;
+        proxy_connect_timeout 300;
+    }
+
+    location /health {
+        access_log off;
+        return 200 "healthy\n";
+        add_header Content-Type text/plain;
+    }
+}