feat: add user_id index to profiles table for faster lookups

The new index on the user_id column in the profiles table improves query performance for user-specific lookups, reducing full table scans during authentication and profile retrieval operations.

nginx/nginx.conf.template

@@ -69,6 +69,22 @@ server {
         proxy_set_header X-Forwarded-Proto $scheme;
     }
 
+    # Container ingress (/p/<slug>): proxies HTTP and WebSocket to a published
+    # container service. Handles upgrade for WS and uses long timeouts.
+    location /p/ {
+        proxy_pass http://app;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $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_buffering off;
+        proxy_read_timeout 3600s;
+        proxy_send_timeout 3600s;
+    }
+
     location / {
         proxy_pass http://app;
         proxy_set_header Host $host;