fix: Increase Nginx timeouts to 600s to support long-running AI tasks

general-market-intelligence/nginx.conf

@@ -18,5 +18,10 @@ server {
         proxy_set_header Connection 'upgrade';
         proxy_set_header Host $host;
         proxy_cache_bypass $http_upgrade;
+        
+        # Increase timeouts for AI generation
+        proxy_read_timeout 600s;
+        proxy_connect_timeout 600s;
+        proxy_send_timeout 600s;
     }
 }