temperature / top_k / top_p, etc.),preset field in /api/tts/generate, /api/tts/simple-generate, and regular Turbo channels.i18n_name and i18n_description are i18n resource keys, not display-ready copy;config is the sampling parameters actually applied for that preset.v2_* / v3_*; a _pro suffix is the professional clone variant).X-Vocu-App-Request-Id response header when troubleshooting.