fix: remote actor display names in thought cards — use last URL segment as username, resolve display_name after intern

crates/application/src/services/federation_event.rs

@@ -136,6 +136,22 @@ impl FederationEventService {
 
                 let author_id = self.ap_repo.intern_remote_actor(&actor_url).await?;
 
+                // Resolve and cache display info so thought cards show proper names.
+                let profiles = self
+                    .federation_action
+                    .resolve_actor_profiles(vec![actor_ap_url.clone()])
+                    .await;
+                if let Some(profile) = profiles.into_iter().next() {
+                    let _ = self
+                        .ap_repo
+                        .update_remote_actor_display(
+                            &author_id,
+                            profile.display_name.as_deref(),
+                            profile.avatar_url.as_deref(),
+                        )
+                        .await;
+                }
+
                 for note in notes {
                     let ap_id = match url::Url::parse(&note.ap_id) {
                         Ok(u) => u,