feat(console): CHV production-grade frontend — worker availability, attachment guard, queue hint, build:console fix, vitest

cloud/console-react/src/sections/WorkersSection.tsx

@@ -1,12 +1,19 @@
 import { useConsole } from "../context";
 import { Card, Bar, DataListRaw } from "../components/ui";
 import { workerAgeText, shortId } from "../api/client";
+import { chvAvailability } from "../api/chv";
 
 export default function WorkersSection() {
   const ctx = useConsole();
+  const chvAvail = chvAvailability(ctx.workers, ctx.workersSummary, ctx.workersError);
   return (
     <Card id="nav-workers" title="Workers">
       <Bar><button onClick={ctx.refreshWorkers}>刷新</button></Bar>
+      <div className="muted">
+        {chvAvail.state === "known"
+          ? <>cloud-hypervisor worker 在线 {chvAvail.online} / 共 {chvAvail.total}（实验，默认关闭）{chvAvail.online === 0 ? "：当前无 CHV worker 在线，CHV 任务将一直排队。" : ""}</>
+          : "cloud-hypervisor worker 在线数未知：完整 worker 清单仅全局管理员可见，非管理员只能看到聚合数，无法按执行器分项。"}
+      </div>
       {ctx.workersError ? <div className="muted">{ctx.workersError}</div>
         : ctx.workers === null ? <div className="muted">{ctx.workersSummary || "未加载"}</div>
         : ctx.workers.length === 0 ? <div className="muted">无 worker 注册</div>