Add proof-of-concept server intercom service through auth server

rc_core/src/persist/config/traits.rs

@@ -113,6 +113,8 @@ pub struct ServerConfig {
     pub auto_signup: bool,
     pub queue_mode: QueueChangeMode,
     pub cdn_url: String,
+    pub auth_url: String,
+    pub intercom_url: String,
 }
 
 pub enum QueueChangeMode {