feat(server,fs): W5-E production fsworker role, settings auto-investigate mode, replace old file to trash_item

- main.ts: `--role fsworker` dispatched before the rest of the module graph is
  loaded (other imports became dynamic); runs fsWorkerMain from the new
  `@umt/adapters/fsworker` export (~150 ms startup in the compiled binary)
- fsproxy: default worker command picked per runtime (deno CLI -> `deno run
  fsworker.ts`, compiled binary -> `<execPath> --role fsworker`); stats expose
  workerKind; UMT_FS_TEST_HANG_AFTER_BYTES acceptance switch for containers
- compile: --allow-run adds /app/umt-server (spawn self); start task allows deno
- organize: replaced old file moved into the file-manager trash layout
  (<root>/.umt-trash/<day>/<uuid>/<rel>) and registered in trash_item, ledger
  result follows; organize.transfer log carries fsproxy stats
- settings: autoInvestigateMode (investigate/recover) + max recover attempts
- deploy.md: container verification (subprocess self, TIMEOUT -> SIGKILL x3)

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

Dockerfile

@@ -14,7 +14,8 @@ ENV APP_VERSION=${APP_VERSION}
 RUN deno task check:tokens && cd apps/web && deno task build
 # --node-modules-dir=none + --exclude-unused-npm:只嵌入 server 依赖图可达的 npm 包(约 110 MB,而不是整个 node_modules)
 # 权限在编译时固定:读写不限路径(库根/下载目录由用户挂载,位置不固定;写保护靠 /app root 只读 + 非 root 运行);
-# --allow-run 只放 ffprobe(入库探测)与 sha256sum(强制全量哈希走子进程,coreutils 自带)
+# --allow-run 只放 ffprobe(入库探测)、sha256sum(强制全量哈希走子进程,coreutils 自带)与 /app/umt-server 自身
+# (fsproxy 把单个文件操作放进 `umt-server --role fsworker` 一次性子进程,挂死可 SIGKILL 回收;二进制必须装在 /app/umt-server)
 RUN cd apps/server && deno task compile
 
 FROM debian:trixie-slim