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/db/migrations/0057_media_scrape.ts

@@ -0,0 +1,38 @@
+import type { Kysely } from "kysely";
+import { execDdl } from "../src/migration-helpers.ts";
+
+// SCR-1 刮削:每部作品最近一次刮削(往媒体库目录写 NFO 与图片)的状态与逐文件结果。
+// 一部作品一行,重新刮削覆盖;历史看审计(organize.scrape)与引擎运行记录。
+
+// biome-ignore lint/suspicious/noExplicitAny: 迁移不依赖应用表类型
+export async function up(db: Kysely<any>): Promise<void> {
+  await execDdl(
+    db,
+    `create table if not exists media_scrape (
+       media_entity_id uuid primary key references media_entity (id) on delete cascade,
+       status text not null default 'queued' check (status in ('queued', 'running', 'succeeded', 'partial', 'failed')),
+       trigger text not null default 'manual' check (trigger in ('auto', 'manual')),
+       mode text not null default 'missing' check (mode in ('missing', 'overwrite')),
+       record_id uuid references organization_record (id) on delete set null,
+       engine_run_id text,
+       requested_at timestamptz not null default now(),
+       started_at timestamptz,
+       finished_at timestamptz,
+       written integer not null default 0,
+       skipped integer not null default 0,
+       failed integer not null default 0,
+       reason text,
+       files jsonb not null default '[]'::jsonb,
+       created_at timestamptz not null default now(),
+       updated_at timestamptz not null default now()
+     );
+     drop trigger if exists media_scrape_touch_updated_at on media_scrape;
+     create trigger media_scrape_touch_updated_at before update on media_scrape
+       for each row execute function umt_touch_updated_at();`,
+  );
+}
+
+// biome-ignore lint/suspicious/noExplicitAny: 同上
+export async function down(db: Kysely<any>): Promise<void> {
+  await execDdl(db, "drop table if exists media_scrape;");
+}