Fix ShellCheck errors: remove local outside functions, fix openssl redirections, unquote loop var

add-nginx-js-challenge.sh

@@ -279,8 +279,8 @@ geoip2 /usr/share/GeoIP/GeoLite2-City.mmdb {
 fi
 
     # Collect server_name values from nginx configs to build same-site referer map
-    local REFERER_ENTRIES=""
-    local _jsc_domain_seen=()
+    REFERER_ENTRIES=""
+    _jsc_domain_seen=()
     for _conf in /etc/nginx/conf.d/*.conf /etc/nginx/sites-enabled/*; do
         [[ -f "$_conf" ]] || continue
         while read -r _sn; do
@@ -289,7 +289,7 @@ fi
                 _d="${_d%;}"
                 [[ " ${_jsc_domain_seen[*]:-} " == *" $_d "* ]] && continue
                 _jsc_domain_seen+=("$_d")
-                local _d_escaped="${_d//./\\.}"
+                _d_escaped="${_d//./\\.}"
                 REFERER_ENTRIES+="    ~^1:https?://${_d_escaped}  1;\n"
             done
         done < <(grep -oP '^\s*server_name\s+\K[^;]+;?' "$_conf" 2>/dev/null)