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

rc_core/src/persist/settings.rs

@@ -78,6 +78,10 @@ pub struct ServerSettings {
     pub queue_mode: QueueMode,
     #[serde(default = "default_cdn_root_url")]
     pub cdn_url: String,
+    #[serde(default = "default_auth_root_url")]
+    pub auth_url: String,
+    #[serde(default = "default_intercom_root_url")]
+    pub intercom_url: String,
     #[serde(default = "default_feedback_url")]
     pub feedback_url: String,
     #[serde(default = "default_support_url")]
@@ -104,6 +108,8 @@ fn default_server_conf() -> ServerSettings {
         auto_signup: false,
         queue_mode: QueueMode::Notify,
         cdn_url: default_cdn_root_url(),
+        auth_url: default_auth_root_url(),
+        intercom_url: default_intercom_root_url(),
         feedback_url: default_feedback_url(),
         support_url: default_support_url(),
         wiki_url: default_wiki_url(),
@@ -114,6 +120,14 @@ fn default_cdn_root_url() -> String {
     "http://127.0.0.1:8010".to_owned()
 }
 
+fn default_auth_root_url() -> String {
+    "http://127.0.0.1:8001".to_owned() // mostly used for intercom
+}
+
+fn default_intercom_root_url() -> String {
+    "ws://127.0.0.1:8001".to_owned()
+}
+
 fn default_feedback_url() -> String {
     "https://mstdn.ca/@ngram".to_owned()
 }