ENV to change UA sent to outbound calls (Genius, Last.fm, LRCLIB)

config.php

@@ -257,6 +257,10 @@ if (!defined('RADIO_CONFIG_LOADED')) {
             'timezone'    => radio_env('TIMEZONE', 'UTC'),
             'debug'       => radio_env_bool('DEBUG', false),
             'show_errors' => radio_env_bool('SHOW_ERRORS', false),
+            // Sent with every outbound request this server makes (Genius,
+            // Last.fm, LRCLIB, custom now-playing feeds). Override per
+            // deployment so multiple stations identify themselves distinctly.
+            'user_agent'  => radio_env('OUTBOUND_USER_AGENT', 'radio/2026.07 (+https://git.dou.bet/iamdoubz/radio)'),
         ],
     ];