docs: S-9 sync READMEs and porting notes with W5 code

- contracts README lists files.ts / auth.ts / browser.ts / redact.ts and auth:"session"
- adapters README fs row: FsProxy and the ./fsworker export
- server README: file-manager module, worker:agent and internal fsworker roles
- moviepilot-rust-transfer §7: compiled-binary fsworker and trash_item done (W5-E)
- 04 S9 row marked fixed (W6-B TOTP entry)

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

packages/adapters/README.md

@@ -11,7 +11,7 @@
 | [`sites`](src/sites/README.md) | `createSiteAdapter` / `getSiteAdapter`、`listSiteDefinitions`、`siteFetch` | 观众(NexusPHP 配置驱动 spider)与馒头 M-Team API |
 | [`tmdb`](src/tmdb/README.md) | `createTmdbClient` / `TmdbClient`、`matchTmdb`、`matchTmdbMulti`、`TmdbError` | 多语言搜索、详情、季集;缓存限流;错误信息不带 api_key |
 | [`emby`](src/emby/README.md) | `createEmbyClient` / `EmbyClient`、`MediaServerRegistry` | Emby / Jellyfin 库存查询,失败返回 `unknown` 而不是"不存在" |
-| [`fs`](src/fs/README.md) | `copyWithVerify`、`moveSafe`、`crossDeviceMove`、`checkRoot`、`scanIncremental`、`diskUsage`、`ffprobe` | 校验复制、跨卷移动、库根哨兵、增量扫描 |
+| [`fs`](src/fs/README.md) | `copyWithVerify`、`moveSafe`、`crossDeviceMove`、`checkRoot`、`scanIncremental`、`diskUsage`、`ffprobe`、`FsProxy`;另有子路径导出 `@umt/adapters/fsworker`(`fsWorkerMain`,供 `--role fsworker`) | 校验复制、跨卷移动、库根哨兵、增量扫描;FsProxy 把文件操作放进可杀子进程(挂死 → SIGKILL → TIMEOUT) |
 | [`browser`](src/browser/README.md) | `BrowserProvider` 合同、`createNoneBrowserProvider`、camofox 适配骨架、`redactBrowserUrl` | 浏览器服务接口(M1 只有接口与骨架) |
 
 测试:`deno task test`(vitest,外部服务全部用 `@umt/testkit` 的 mock)。