Fix pangolin_create_site blocking on read in non-interactive mode

The site name prompt used read -rp which blocks when stdin is piped.
Now uses default name automatically when NON_INTERACTIVE=true.

Bunker Admin

config.sh

@@ -1194,8 +1194,12 @@ pangolin_create_site() {
   local domain="${CONFIGURED_DOMAIN:-cmlite.org}"
   local site_name
 
-  read -rp "  Site name [default: changemaker-$domain]: " site_name
-  site_name=${site_name:-changemaker-$domain}
+  if [[ "$NON_INTERACTIVE" == "true" ]]; then
+    site_name="changemaker-$domain"
+  else
+    read -rp "  Site name [default: changemaker-$domain]: " site_name
+    site_name=${site_name:-changemaker-$domain}
+  fi
 
   info "Fetching Newt credentials..."
   local defaults_resp