Initial commit: NetMesh smart ops platform with 3D topology, inspection reports, RCA and AI ops assistant

infrastructure/appLockOverlayDom.ts

@@ -0,0 +1,13 @@
+/** DOM marker for the App Lock overlay root (`data-app-lock-overlay`). */
+export const APP_LOCK_OVERLAY_SELECTOR = "[data-app-lock-overlay]";
+
+/**
+ * True when the App Lock overlay is currently mounted.
+ * Window/document capture key handlers that register before the overlay must
+ * consult this so password keystrokes cannot mutate app state behind the lock.
+ */
+export function isAppLockOverlayActive(
+  doc: Document | null | undefined = typeof document !== "undefined" ? document : null,
+): boolean {
+  return Boolean(doc?.querySelector(APP_LOCK_OVERLAY_SELECTOR));
+}