fix(infra): remove unused internal.bcsdlab.com references in nginx config

Author: ImTotem

infra/nginx/bcsd-api.conf

@@ -22,7 +22,7 @@ upstream frontend {
 # --- HTTP: ACME + redirect ---
 server {
     listen 80;
-    server_name api.bcsdlab.com n8n.bcsdlab.com internal.bcsdlab.com stage.bcsdlab.com;
+    server_name api.bcsdlab.com n8n.bcsdlab.com stage.bcsdlab.com ;
 
     location /.well-known/acme-challenge/ {
         root /var/www/certbot;
@@ -76,7 +76,7 @@ server {
 # --- HTTPS: Frontend (internal.bcsdlab.com) ---
 server {
     listen 443 ssl http2;
-    server_name internal.bcsdlab.com stage.bcsdlab.com;
+    server_name stage.bcsdlab.com;
 
     ssl_certificate /etc/letsencrypt/live/bcsdlab.com/fullchain.pem;
     ssl_certificate_key /etc/letsencrypt/live/bcsdlab.com/privkey.pem;