refactor: wrap direct port calls behind use cases — notifications, search, popular_tags

crates/application/src/use_cases/notifications.rs

@@ -0,0 +1,30 @@
+use domain::{
+    errors::DomainError,
+    models::feed::{PageParams, Paginated},
+    models::notification::Notification,
+    ports::NotificationRepository,
+    value_objects::{NotificationId, UserId},
+};
+
+pub async fn list_notifications(
+    repo: &dyn NotificationRepository,
+    user_id: &UserId,
+    page: PageParams,
+) -> Result<Paginated<Notification>, DomainError> {
+    repo.list_for_user(user_id, &page).await
+}
+
+pub async fn mark_notification_read(
+    repo: &dyn NotificationRepository,
+    id: &NotificationId,
+    user_id: &UserId,
+) -> Result<(), DomainError> {
+    repo.mark_read(id, user_id).await
+}
+
+pub async fn mark_all_notifications_read(
+    repo: &dyn NotificationRepository,
+    user_id: &UserId,
+) -> Result<(), DomainError> {
+    repo.mark_all_read(user_id).await
+}