Bind the shared scope, screening, expiry, and eviction logic to any
RealtimeCheckpointRecordStorage. The returned store never throws into
a subscription: a rejected storage call, a refused value, or a corrupt record
resolves and reports a diagnostic, so the subscription resnapshots.
Bind the shared scope, screening, expiry, and eviction logic to any RealtimeCheckpointRecordStorage. The returned store never throws into a subscription: a rejected storage call, a refused value, or a corrupt record resolves and reports a diagnostic, so the subscription resnapshots.