Paywall Cache State
data class PaywallCacheState(val views: Map<String, View> = emptyMap(), val activePaywallVcKey: String? = null)(source)
Source-of-truth state for the paywall view cache.
Mirrors the underlying ViewStorage but is owned by a SequentialActor so mutations are FIFO-serialized and reads via actor.state.value always return a consistent snapshot.