On native App the eager TTS request delayed the answer bubble: the message was
created in `preparing` state, so the text stayed behind a voice line that was
still waiting on a round trip.
Skip the preload when `isNativeAppRuntime()`, marking the voice `unavailable`
so the text and citations render immediately. The existing `unavailable`
branch already exposes a play button that calls `toggleAnswerSpeech`, so voice
stays reachable on demand instead of being dropped. H5 keeps preloading.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
adminandClaude Opus 5
73712994c6