added trade-hub role and files

roles/trade_hub/files/trade-hub/frontend/nginx.conf

@@ -0,0 +1,39 @@
+server {
+    listen 80;
+    server_name _;
+
+    gzip on;
+    gzip_types text/css application/javascript application/json image/svg+xml;
+    gzip_min_length 1024;
+
+    # API and health checks are proxied to the backend container on the
+    # shared podman network (service DNS name: backend).
+    #
+    # X-Real-IP and X-Forwarded-Proto are set here (not passed through), so the
+    # backend can trust them for login throttling and redirect/scheme decisions.
+    location /api/ {
+        proxy_pass http://backend:8000;
+        # $http_host keeps the client's port, which the backend's Origin check
+        # compares against; $host would drop ":8080" and reject real browsers.
+        proxy_set_header Host $http_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_set_header X-Forwarded-Host $http_host;
+        proxy_connect_timeout 5s;
+        proxy_read_timeout 30s;
+    }
+
+    location = /healthz {
+        proxy_pass http://backend:8000;
+        proxy_set_header Host $http_host;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_set_header X-Forwarded-Host $http_host;
+    }
+
+    location / {
+        root /usr/share/nginx/html;
+        index index.html;
+        try_files $uri $uri/ /index.html;
+    }
+}