feat: Android APP V1 - Experimental Alpha

toju-app/src/app/infrastructure/mobile/README.md

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+# Mobile infrastructure
+
+Loosely coupled Capacitor/native bridge for the Angular product client. Domains depend on facades in this folder — never on `@capacitor/*` imports directly.
+
+## Facades
+
+| Service | Responsibility |
+|---------|----------------|
+| `MobilePlatformService` | Runtime detection (`browser` / `capacitor` / `electron`) and mobile UX flags |
+| `MobileNotificationsService` | Local/push notifications for calls |
+| `MobileCallSessionService` | In-call notification actions, background audio session, stream video hand-off |
+| `MobileMediaService` | Attachment picker, speakerphone route, screen-share/PiP capability probes |
+| `MobilePictureInPictureService` | Stream pop-out while backgrounded |
+| `MobilePersistenceService` | Native SQLite schema init (`@capacitor-community/sqlite`) |
+| `MobileSqliteConnectionService` | Shared SQLite connection for persistence + `DatabaseService` |
+| `MobileCallKitService` | iOS CallKit active-call reporting for background voice |
+| `MobilePushRegistrationService` | FCM/APNs token registration with signaling server; skips `PushNotifications.register()` when Firebase/APNs is not configured |
+| `MobileAppLifecycleService` | Foreground/background lifecycle |
+
+## Adapters
+
+- `adapters/web/*` — browser fallbacks (Notification API, hidden file input, Document PiP).
+- `adapters/capacitor/*` — lazy-loaded Capacitor plugins via `capacitor-plugin-loader.ts`.
+
+## Rules
+
+Pure platform/call-notification rules live in `logic/*.rules.ts` and are Vitest-tested without Angular.