feat(server): scrapeMedia 刮削任务,入库后自动刮削(SCR-1)

- 文件道任务 scrapeMedia:NFO 原子写入、图片经图片缓存下载(并发 4,失败不阻塞 NFO)、只补缺失 / 全部覆盖
- 设置 organize.scrapeAfterImport / scrapeMode / scrapeImages / scrapeEpisodeThumbs
- POST /library/{id}/scrape、详情 scrape 状态;files/scrape writeNfo 与 scrape-batch write 走同一任务
- 迁移 0057_media_scrape、原因码、审计 organize.scrape
- 与 MP 输出的 NFO 差分测试(apps/server/test/scrape)

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/contracts/src/api.ts

@@ -2238,6 +2238,15 @@ export const Api = {
       query: libraryVersions.LibraryVersionsQuery,
       response: libraryVersions.LibraryVersions,
     }),
+    scrape: ep({
+      method: "post",
+      path: "/library/{id}/scrape",
+      scope: "organize.execute",
+      summary: "刮削：把作品的 NFO 与图片写进媒体库目录（后台任务 scrapeMedia；覆盖方式缺省按设置）",
+      params: IdParam,
+      body: organization.LibraryScrapeRequest,
+      response: organization.LibraryScrapeResult,
+    }),
     reconcile: ep({
       method: "post",
       path: "/library/reconcile",