Current topic: "Implementing PaywallStatusCard"
Topic summary: I am now implementing the `PaywallStatusCard` component in Kotlin. This component will use the Material 3 `Card` with a `tertiaryContainer` background. It includes logic to display different content based on whether the purchase is pending or if the app is in read-only mode. I'm adding an "Upgrade to Premium" button for the read-only state and a headline/body message for the pending state. I'm also including necessary accessibility semantics to ensure it's properly announced by TalkBack.

Strategic Intent: Implementing the PaywallStatusCard UI component.