feat: support sending messages to the user

crates/webhook-actor/src/handlers/mod.rs

@@ -1 +1,2 @@
+mod notify_user;
 mod shutdown_webhook;

crates/webhook-actor/src/handlers/notify_user.rs

@@ -0,0 +1,12 @@
+//
+use actix::prelude::*;
+
+use crate::{messages::NotifyUser, WebhookActor};
+
+impl Handler<NotifyUser> for WebhookActor {
+    type Result = ();
+
+    fn handle(&mut self, _msg: NotifyUser, _ctx: &mut Self::Context) -> Self::Result {
+        // TODO: (#95) should notify user
+    }
+}

crates/webhook-actor/src/messages.rs

@@ -2,3 +2,5 @@
 use git_next_actor_macros::message;
 
 message!(ShutdownWebhook: "Request to shutdown the Webhook actor");
+
+message!(NotifyUser: String: "Request to send the message payload to the notification webhook");