test(web): 剧集组组件测试按 lint 规范传 children

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Cxwgnn2pbzQ7rXv3rq7fei

apps/web/app/components/library/episode-structure.tsx

@@ -201,7 +201,7 @@ function resultToast(r: EpisodeGroupSetResult) {
  * 作品页「季与集」顶部的季集结构切换:只有 TMDB 有剧集组(或作品已选了剧集组)时出现。
  * 选中当前结构时显示 children(现有的季与集);选中其它结构时显示该结构的季卡片预览与「改用这套结构」。
  */
-export function EpisodeStructureSwitcher({ entityId, children }: { entityId: string; children: ReactNode }) {
+export function EpisodeStructureSwitcher({ entityId, children }: { entityId: string; children?: ReactNode }) {
   const groups = useEpisodeGroups(entityId);
   const options = structureOptions(groups.data);
   const current = groups.data?.current?.groupId ?? null;