bump k-ap 0.4.4, handle OutboundFollowAccepted w/ outbox backfill

crates/worker/Cargo.toml

@@ -13,7 +13,7 @@ application = { workspace = true }
 nats = { workspace = true }
 event-transport = { workspace = true }
 event-payload = { workspace = true }
-k-ap = { version = "0.4.0", registry = "gitea" }
+k-ap = { version = "0.4.4", registry = "gitea" }
 activitypub = { workspace = true }
 postgres = { workspace = true }
 postgres-federation = { workspace = true }

crates/worker/src/main.rs

@@ -104,6 +104,22 @@ async fn main() {
                         .await;
                         result
                     }
+                    EventPayload::FederationOutboundFollowAccepted {
+                        remote_actor_url,
+                        outbox_url,
+                        ..
+                    } => {
+                        if let Some(outbox) = outbox_url {
+                            infra
+                                .raw_ap_service
+                                .import_remote_outbox(&outbox, &remote_actor_url)
+                                .await
+                                .map_err(|e| DomainError::Internal(e.to_string()))
+                        } else {
+                            tracing::info!(%remote_actor_url, "outbound follow accepted but no outbox URL — skipping backfill");
+                            Ok(())
+                        }
+                    }
 
                     // ── domain events ──────────────────────────────────────
                     p => match DomainEvent::try_from(p) {