fix: Update API proxy pass URL to correct backend port

Author: GravityDarkLab

client/nginx.conf

@@ -12,7 +12,7 @@ server {
 
     # Proxy API calls to backend
     location /api/ {
-        proxy_pass http://server-gateway:8080/api/;
+        proxy_pass http://server-gateway:8081/api/;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;