fix(broker): route all wakes through sqlite, remove transient ping buffer

hive-c0re/src/main.rs

@@ -522,9 +522,6 @@ fn spawn_broker_to_dashboard_forwarder(coord: Arc<Coordinator>) {
                         file_refs,
                     });
                 }
-                // Transient pings are not persisted and not shown in the
-                // dashboard message history — ignore silently.
-                Ok(MessageEvent::Ping { .. }) => {}
                 Err(tokio::sync::broadcast::error::RecvError::Lagged(n)) => {
                     tracing::warn!(skipped = n, "broker-to-dashboard forwarder lagged");
                 }