Setup phone UI

Source/NakedDesire/UI/Phone/PhoneAppWidget.h

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+// © 2025 Naked People Team. All Rights Reserved.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "CommonActivatableWidget.h"
+#include "PhoneAppWidget.generated.h"
+
+// Base class for every phone app (GDD §9: camera, gallery, forum, bank, livestream, maps, health tracker).
+// Apps are activatables pushed onto the phone shell's inner app stack (UPhoneScreenWidget::AppStack).
+// CommonUI back navigation pops the active app back to the home screen for free; the phone's physical
+// Home button (UPhoneScreenWidget::GoHome) is the explicit equivalent.
+// Per-app logic (capture, posting, etc.) lands with the Phase 8 phone systems; this is the shared shell only.
+UCLASS(Abstract)
+class NAKEDDESIRE_API UPhoneAppWidget : public UCommonActivatableWidget
+{
+	GENERATED_BODY()
+};