Function btw_cancel

src/apps/desktop/src/api/btw_api.rs:45–73

(
    state: State<'_, AppState>,
    coordinator: State<'_, Arc<ConversationCoordinator>>,
    request: BtwCancelRequest,
)

#[tauri::command]
pub async fn btw_cancel(
    state: State<'_, AppState>,
    coordinator: State<'_, Arc<ConversationCoordinator>>,
    request: BtwCancelRequest,
) -> Result<(), String> {
    if request.request_id.trim().is_empty() {
        return Err("requestId is required".to_string());
    }

    state
        .side_question_runtime
        .cancel(&request.request_id)
        .await;
    if let Some(active_turn) = state
        .side_question_runtime
        .get_btw_turn(&request.request_id)
        .await
    {
        coordinator
            .cancel_dialog_turn(&active_turn.session_id, &active_turn.turn_id)
            .await
            .map_err(|e| e.to_string())?;
        state
            .side_question_runtime
            .remove(&request.request_id)
            .await;
    }
    Ok(())
}

#[tauri::command]
pub async fn btw_ask_stream(