feat: stabilize OpenSim interactions and landmarks

crates/metacrate-grid-agent/src/main.rs

@@ -275,7 +275,7 @@ async fn run_live(
         AgentControlTarget, BehaviorObservation, ControlEventKind, ControlPlane, ControlTarget,
         GridSessionBackend, LibremetaverseClientOwner, OperatingMode, RuntimeControlCommand,
         SessionControl, SessionObservation, SessionState, SessionSupervisor, TcpControlConfig,
-        TcpControlServer,
+        TcpControlServer, WorldSnapshotSource,
     };
 
     let connection = config.grid.clone().ok_or_else(|| {
@@ -449,6 +449,24 @@ async fn run_live(
                 if let SessionObservation::Transition { status, reason, retry_in } = event {
                     live.vision.set_generation(status.generation);
                     control_target.update_session(status);
+                    if status.agent_ready
+                        && let Ok(snapshot) = live
+                            .world
+                            .capture(
+                                status.generation,
+                                libremetaverse_types::compat::CancellationToken::default(),
+                            )
+                            .await
+                    {
+                        control_target.update_region(
+                            Some(snapshot.region_id.to_string()),
+                            live.world.current_region_handle(),
+                            Some(snapshot.region_name),
+                            snapshot.agent.position.map(|position| {
+                                [position.x, position.y, position.z]
+                            }),
+                        );
+                    }
                     live.landmark_roaming
                         .update_pause(|pause| pause.degraded = !status.agent_ready);
                     control_plane.publish(ControlEventKind::StateChanged {
@@ -582,6 +600,7 @@ struct LiveInteractions {
     build_control: Arc<dyn metacrate_grid_agent::BuildControl>,
     vision:
         Arc<metacrate_grid_agent::VisionService<metacrate_grid_agent::LibremetaverseSceneSource>>,
+    world: Arc<metacrate_grid_agent::LibremetaverseWorldSnapshotSource>,
 }
 
 #[cfg(feature = "live-grid")]
@@ -612,8 +631,9 @@ fn start_live_interactions(
         ..LlmTransportLimits::default()
     };
     let conversation = Arc::new(ConversationStore::from_config(config)?);
+    let world = Arc::new(owner.world_snapshot_source());
     let perception = Arc::new(PerceptionBackend::new(
-        Arc::new(owner.world_snapshot_source()),
+        world.clone(),
         Arc::clone(&conversation),
         config.limits.observable_queue,
     )?);
@@ -760,6 +780,7 @@ fn start_live_interactions(
         landmark_roaming,
         build_control,
         vision,
+        world,
     })
 }