feat: 更新数字人 ID 选择逻辑，支持使用内部 ID 或者备用 ID

components/SlideCreateCourse.vue

@@ -48,7 +48,7 @@ watchEffect(() => {
   if (selected_digital_human.value) {
     // 2025.03.31 使用内部数字人 ID
     createCourseState.digital_human_id =
-      selected_digital_human.value.digital_human_id ?? 0
+      selected_digital_human.value.digital_human_id ?? selected_digital_human.value.id ?? 0
   }
   if (selected_titles.value) {
     createCourseState.opening_url = selected_titles.value.opening_file
@@ -79,7 +79,7 @@ const onCreateCourseSubmit = async (
       user_id: loginState.user.id,
       task_title: event.data.task_title,
       gen_server: event.data.gen_server as 'main' | 'standby1',
-      speed: 2 - event.data.speed,
+      speed: event.data.speed,
       ppt_url: url,
       digital_human_id: event.data.digital_human_id,
       custom_video: '[]',