feat: Android APP V1 - Experimental Alpha

toju-app/src/app/infrastructure/mobile/adapters/web/web-mobile-app-lifecycle.adapter.ts

@@ -0,0 +1,20 @@
+import type { MobileAppLifecycleAdapter } from '../../contracts/mobile.contracts';
+
+/** Visibility API fallback for browser runtimes. */
+export class WebMobileAppLifecycleAdapter implements MobileAppLifecycleAdapter {
+  private handler: ((isActive: boolean) => void) | null = null;
+
+  async initialize(): Promise<void> {
+    if (typeof document === 'undefined') {
+      return;
+    }
+
+    document.addEventListener('visibilitychange', () => {
+      this.handler?.(!document.hidden);
+    });
+  }
+
+  onAppStateChange(handler: (isActive: boolean) => void): void {
+    this.handler = handler;
+  }
+}