Kotlin/Native generates distinct Swift types for a class depending on
whether it's imported directly from its owning module or transitively
re-exported through another framework, so files consuming these DTOs
via FluxaShared's re-export of core no longer matched the FluxaCore
type Loader/ResourceLoader now return directly. Route Bootstrap and
HomeEffectHandler through FluxaCore consistently, and add an explicit
FluxaCore->FluxaShared stream conversion where DetailStartup crosses
back into FluxaApple.shared's Shared-typed API.
FluxaAppleAddonConfigurationStore gains a disabled-addon set and
enabledAddonUrls(); Home/Search/Discover/Detail now fetch from
enabledAddonUrls() instead of the raw configured list, so disabling an
addon in the store actually stops it from being queried.
