release: bump version to 0.40.4

frontend/public/earth/js/main.js

@@ -242,6 +242,7 @@ let activeTouchPoints = new Map();
 let pinchGesture = null;
 let pointerDragDistance = 0;
 let suppressNextClick = false;
+let shouldRefreshSatellitesAfterVisibilityResume = false;
 
 const clock = new THREE.Clock();
 const interactionRaycaster = new THREE.Raycaster();
@@ -2392,6 +2393,7 @@ export async function setSatellitesEnabled(
 
 function setupEventListeners() {
   const handleResize = () => onWindowResize();
+  const handleVisibilityChange = () => onVisibilityChange();
   const handlePointerMove = (event) => onPointerMove(event);
   const handlePointerDown = (event) => onPointerDown(event);
   const handlePointerUp = (event) => onPointerUp(event);
@@ -2403,6 +2405,7 @@ function setupEventListeners() {
   const handleInfoCardDrag = () => repositionCruiseConnector();
 
   bindListener(window, "resize", handleResize);
+  bindListener(document, "visibilitychange", handleVisibilityChange);
   bindListener(window, "pagehide", handlePageHide);
   bindListener(window, "beforeunload", handlePageHide);
   bindListener(window, "earth:rotation-mode-change", handleRotationMode);
@@ -2425,6 +2428,20 @@ function setupEventListeners() {
   }
 }
 
+function onVisibilityChange() {
+  if (document.hidden) {
+    shouldRefreshSatellitesAfterVisibilityResume = true;
+    return;
+  }
+
+  if (!shouldRefreshSatellitesAfterVisibilityResume) return;
+  shouldRefreshSatellitesAfterVisibilityResume = false;
+
+  // Drop the elapsed background time so the next RAF does not replay it.
+  clock.getDelta();
+  updateSatellitePositions(0, true, { resetTrails: true });
+}
+
 function updateHudScale() {
   const widthScale = window.innerWidth / HUD_CONFIG.scaleReferenceWidth;
   const heightScale = window.innerHeight / HUD_CONFIG.scaleReferenceHeight;