feat(web): regroup console nav into 7 groups, split downloads/plans/tasks, add legacy redirects

- Sidebar: 概览/资源/订阅/下载/整理/Agent/系统, 18 items (+ 定时任务); single
  active item via findNavItem; 待处理 badge; collapsed rail groups; mobile drawer
  shares NAV_GROUPS.
- New pages: /downloads (queue + cache watermark header), /downloads/plans,
  /downloads/:id, /tasks (business tasks only) + /tasks/:id detail, /rules.
- Legacy links: ?tab= on tasks/subscriptions/sources redirect via clientLoader;
  /tasks/:downloadId falls back to /downloads/:id.
- List filters in URL query; settingsPath() helper for settings deep links.
- Copy per glossary (待处理, 收录策略, 引擎面板, 文件管理, 版本目标).

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

apps/web/app/components/downloads/cache-volumes.tsx

@@ -1,10 +1,11 @@
 import type { Dashboard } from "@umt/contracts";
-import { Brush, HardDrive } from "lucide-react";
-import { useNavigate } from "react-router";
+import { Brush, HardDrive, SlidersHorizontal } from "lucide-react";
+import { Link, useNavigate } from "react-router";
 import { toast } from "sonner";
 import { useCacheCleanup, useCacheVolumes } from "~/api/downloads.ts";
 import { ConfirmDialog } from "~/components/console/confirm-dialog.tsx";
 import { ErrorState, LoadingState } from "~/components/console/empty-state.tsx";
+import { consolePath, settingsPath } from "~/components/console/nav.ts";
 import { StatusBadge } from "~/components/console/status-badge.tsx";
 import { Button } from "~/components/ui/button.tsx";
 import { errorMessage } from "~/lib/api.ts";
@@ -76,7 +77,7 @@ function VolumeBar({ v }: { v: Volume }) {
   );
 }
 
-/** 缓存卷用量 / 阈值条 + 手动清理入口 */
+/** 缓存卷水位 / 阈值条 + 阈值设置与手动清理入口(下载队列页头) */
 export function CacheVolumes() {
   const vols = useCacheVolumes();
   const cleanup = useCacheCleanup();
@@ -84,34 +85,42 @@ export function CacheVolumes() {
   return (
     <section className="pg-slab mb-6 rounded-xl p-4">
       <div className="mb-3 flex flex-wrap items-center justify-between gap-2">
-        <h2 className="text-label font-semibold tracking-[0.18em] text-muted-foreground uppercase">缓存与保留</h2>
-        <ConfirmDialog
-          trigger={
-            <Button variant="outline" size="sm" disabled={cleanup.isPending}>
-              <Brush />
-              立即清理
-            </Button>
-          }
-          title="按规则清理下载缓存?"
-          description="只清理已入库、且满足保留期与 H&R 的纳管任务,其余不动。"
-          confirmLabel="清理"
-          onConfirm={() =>
-            cleanup.mutateAsync(undefined).then(
-              (r) => {
-                toast.success(`已排队清理任务 ${r.taskId.slice(0, 8)}`, { description: "结果见任务详情" });
-                navigate(`/console/engine/${r.runId}`);
-              },
-              (e) => toast.error(errorMessage(e)),
-            )
-          }
-        />
+        <h2 className="text-label font-semibold tracking-[0.18em] text-muted-foreground uppercase">缓存水位</h2>
+        <div className="flex flex-wrap gap-2">
+          <Button asChild variant="ghost" size="sm">
+            <Link to={settingsPath("automation", "cache")}>
+              <SlidersHorizontal />
+              调整阈值
+            </Link>
+          </Button>
+          <ConfirmDialog
+            trigger={
+              <Button variant="outline" size="sm" disabled={cleanup.isPending}>
+                <Brush />
+                立即清理
+              </Button>
+            }
+            title="按规则清理下载缓存?"
+            description="只清理已入库、且满足保留期与 H&R 的纳管任务,其余不动。"
+            confirmLabel="清理"
+            onConfirm={() =>
+              cleanup.mutateAsync(undefined).then(
+                (r) => {
+                  toast.success("清理已排队");
+                  navigate(consolePath("tasks", r.taskId));
+                },
+                (e) => toast.error(errorMessage(e)),
+              )
+            }
+          />
+        </div>
       </div>
       {vols.isPending ? (
         <LoadingState rows={2} />
       ) : vols.error ? (
         <ErrorState plain error={vols.error} onRetry={() => void vols.refetch()} />
       ) : !vols.data.length ? (
-        <p className="text-caption text-muted-foreground">还没有缓存卷数据。配置下载器并完成巡检后显示。</p>
+        <p className="text-caption text-muted-foreground">还没有缓存卷数据。登记下载器并完成巡检后显示。</p>
       ) : (
         <div className="grid gap-5 md:grid-cols-2">
           {vols.data.map((v) => (