fix: replace raw codes and internal IDs in the console with Chinese labels

Found in v0.2 visual QA (docs/plan/09-visual-qa.md):
- actor strings (admin_session:<uuid>, user:<uuid>, system) -> 管理员/系统/API Key
  in policy revisions, subscriptions, inbox, trash, business tasks, organize detail
- cache volume without key shows the downloader name instead of instance:<uuid>
- download timeline/plan: task and organize statuses, plan purpose, priority and
  status reason localized; audit gets labels for capability/files/site/feed actions
- organize record reason uses conflict detail (没有可入库的主视频) instead of
  blocked:no_main_video; slot/candidate reasons drop inflight:<uuid>
- identity decision summary no longer shows no_viable_candidate
- upstream test: 'Connection error.' classified as network, with a Chinese hint
- new policy draft prefills key default (placeholder looked like a value)
- dialog/sheet close sr-only text in Chinese

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

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

@@ -3,6 +3,7 @@ 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 { downloaders } from "~/api/instances.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";
@@ -13,7 +14,18 @@ import { cn, formatBytes } from "~/lib/utils.ts";
 
 type Volume = Dashboard["cache"]["volumes"][number];
 
+/** 缓存卷显示名:没填缓存卷标识时服务端用 `instance:<id>`,换成下载器实例名,不露内部 ID */
+export function useVolumeLabel() {
+  const list = downloaders.useList();
+  return (v: Pick<Volume, "volumeKey" | "instanceIds">) => {
+    if (!v.volumeKey.startsWith("instance:")) return v.volumeKey;
+    const names = v.instanceIds.map((id) => list.data?.items.find((i) => i.id === id)?.name).filter(Boolean);
+    return names.length ? names.join("、") : "下载器缓存";
+  };
+}
+
 function VolumeBar({ v }: { v: Volume }) {
+  const volumeLabel = useVolumeLabel();
   const pct = v.usedPercent;
   const tripped = pct !== null && pct >= v.hardThresholdPercent;
   const nearing = pct !== null && !tripped && pct >= v.resumePercent;
@@ -22,7 +34,7 @@ function VolumeBar({ v }: { v: Volume }) {
       <div className="flex flex-wrap items-baseline justify-between gap-2">
         <span className="flex min-w-0 items-center gap-1.5 text-sm font-medium text-foreground">
           <HardDrive className="h-3.5 w-3.5 shrink-0 text-muted-foreground" />
-          <span className="truncate">{v.volumeKey}</span>
+          <span className="truncate">{volumeLabel(v)}</span>
         </span>
         <span className="text-meta text-muted-foreground tabular-nums">
           {pct === null ? "使用率未知" : `${pct.toFixed(1)}%`}