feat: setup proxy and x-forwarded-for header

deployment/nginx.conf

@@ -9,6 +9,7 @@ server {
 
     location /api/ {
         proxy_pass http://backend:3000;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
     }
 
     location /api-docs/ {
@@ -18,6 +19,7 @@ server {
     location /socket.io/ {
         proxy_pass http://backend:3000;
         proxy_http_version 1.1;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection "upgrade";
         proxy_set_header Host $host;