feat(ap): broadcast Update(Actor) when user updates their profile

crates/application/src/use_cases/profile.rs

@@ -1,7 +1,8 @@
 use domain::{
     errors::DomainError,
+    events::DomainEvent,
     models::{top_friend::TopFriend, user::User},
-    ports::{TopFriendRepository, UserRepository},
+    ports::{EventPublisher, TopFriendRepository, UserRepository},
     value_objects::{UserId, Username},
 };
 
@@ -38,8 +39,10 @@ pub async fn get_user_by_id_or_username(
     }
 }
 
+#[allow(clippy::too_many_arguments)]
 pub async fn update_profile(
     users: &dyn UserRepository,
+    events: &dyn EventPublisher,
     user_id: &UserId,
     display_name: Option<String>,
     bio: Option<String>,
@@ -56,6 +59,11 @@ pub async fn update_profile(
             header_url,
             custom_css,
         )
+        .await?;
+    events
+        .publish(&DomainEvent::ProfileUpdated {
+            user_id: user_id.clone(),
+        })
         .await
 }