fix: top-friends returns usernames not UUIDs

crates/presentation/src/handlers/social.rs

@@ -99,9 +99,6 @@ pub async fn get_top_friends_handler(
 ) -> Result<Json<serde_json::Value>, ApiError> {
     let user = get_user_by_username(&*s.users, &username).await?;
     let friends = get_top_friends(&*s.top_friends, &user.id).await?;
-    let ids: Vec<Uuid> = friends
-        .iter()
-        .map(|(tf, _)| tf.friend_id.as_uuid())
-        .collect();
-    Ok(Json(serde_json::json!({ "top_friends": ids })))
+    let usernames: Vec<&str> = friends.iter().map(|(_, u)| u.username.as_str()).collect();
+    Ok(Json(serde_json::json!({ "topFriends": usernames })))
 }