feat(worker): IO Worker 分道(WK-1)

io worker 进程内按任务声明的 lane 分文件 / 网络 / 维护三条道,各自并发(缺省 2/4/1)、
各自排队;维护道在文件道或网络道有排队/运行时让路(连续 10 分钟放行一个),调度器内联的
清理/回填/保留期裁剪也走维护道。并发在 设置 → 自动化 → 高级 热生效,env 覆盖;旧
WORKER_CONCURRENCY 映射到网络道。运行状态页按道显示运行中/并发/排队。归属表写进
docs/runbook/dev.md,ci 与注册表逐项核对。

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

apps/web/app/routes/console/status.tsx

@@ -1,5 +1,5 @@
 import { useQueryClient } from "@tanstack/react-query";
-import type { HealthLevel, SystemHealth, SystemProcess } from "@umt/contracts";
+import type { HealthLevel, SystemHealth, SystemProcess, SystemWorkerLane } from "@umt/contracts";
 import {
   AlertTriangle,
   ChevronDown,
@@ -226,6 +226,8 @@ function Processes({ d }: { d: SystemHealth }) {
           cell: (p) =>
             p.concurrency.io === undefined && p.concurrency.agent === undefined ? (
               <span className="text-muted-foreground">—</span>
+            ) : p.lanes.length ? (
+              <LaneCell p={p} />
             ) : (
               <span className="whitespace-nowrap tabular-nums">
                 io {p.concurrency.io ?? 0} · 智能体 {p.concurrency.agent ?? 0}
@@ -261,6 +263,30 @@ function Processes({ d }: { d: SystemHealth }) {
   );
 }
 
+const LANE_LABEL: Record<SystemWorkerLane["lane"], string> = { file: "文件", network: "网络", maintenance: "维护" };
+
+/** io worker 分道(WK-1):每道一行「运行中/并发 · 排队」,维护道让路时标出来 */
+function LaneCell({ p }: { p: SystemProcess }) {
+  return (
+    <div className="grid justify-items-end gap-0.5 text-meta">
+      {p.lanes.map((l) => (
+        <span
+          key={l.lane}
+          className="whitespace-nowrap tabular-nums"
+          title={l.source === "env" ? "并发由环境变量指定，设置页的值不生效" : undefined}
+        >
+          {LANE_LABEL[l.lane]} {l.running}/{l.concurrency}
+          {l.queued ? ` · 排队 ${l.queued}` : ""}
+          {l.yielding ? " · 让路中" : ""}
+        </span>
+      ))}
+      {p.concurrency.agent !== undefined ? (
+        <span className="whitespace-nowrap tabular-nums text-muted-foreground">智能体 {p.concurrency.agent}</span>
+      ) : null}
+    </div>
+  );
+}
+
 /** 已下线实例:已退出、容器已重建或被同容器新进程替换的旧心跳行,默认折叠,不参与告警 */
 function RetiredProcesses({ rows }: { rows: SystemProcess[] }) {
   const [open, setOpen] = useState(false);