The settings UI writes localStorage immediately but persists the server
engine through a debounced save, so a first-party Edge selection could
fall through the new server default to a stale ElevenLabs/OpenAI
engine. Both WebUI Edge callers now pass engine explicitly; regressions
cover both call sites.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CNmJZVV9u6pBhcwVhwkPp6
