fix: move user_feed to FeedRepository — proper counts and viewer flags for user timelines

crates/application/src/use_cases/feed.rs

@@ -4,7 +4,7 @@ use domain::{
         feed::{FeedEntry, PageParams, Paginated, UserSummary},
         user::User,
     },
-    ports::{FeedRepository, FollowRepository, ThoughtRepository, UserRepository},
+    ports::{FeedRepository, FollowRepository, UserRepository},
     value_objects::UserId,
 };
 
@@ -17,8 +17,8 @@ pub async fn get_public_feed(feed: &dyn FeedRepository, viewer_id: Option<&UserI
     feed.public_feed(&page, viewer_id).await
 }
 
-pub async fn get_user_feed(thoughts: &dyn ThoughtRepository, user_id: &UserId, page: PageParams) -> Result<Paginated<FeedEntry>, DomainError> {
-    thoughts.list_by_user(user_id, &page).await
+pub async fn get_user_feed(feed: &dyn FeedRepository, user_id: &UserId, page: PageParams, viewer_id: Option<&UserId>) -> Result<Paginated<FeedEntry>, DomainError> {
+    feed.user_feed(user_id, &page, viewer_id).await
 }
 
 pub async fn get_followers(follows: &dyn FollowRepository, user_id: &UserId, page: PageParams) -> Result<Paginated<User>, DomainError> {