fix(infra): ensure /var/www/certbot exists before nginx reload

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ImTotem

infra/scripts/deploy.sh

@@ -78,6 +78,7 @@ fi
 
 echo "4. Switching nginx → $NEXT"
 sed -i "s/proxy_pass http:\/\/api_${CURRENT}/proxy_pass http:\/\/api_${NEXT}/g" "$NGINX_CONF"
+sudo mkdir -p /var/www/certbot
 sudo cp "$NGINX_CONF" "$NGINX_DEST"
 sudo nginx -t && sudo nginx -s reload