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/routes/console/home.tsx

@@ -26,6 +26,7 @@ import { consolePath } from "~/components/console/nav.ts";
 import { PageHeader } from "~/components/console/page-header.tsx";
 import { StatTile } from "~/components/console/stat-tile.tsx";
 import { StatusBadge } from "~/components/console/status-badge.tsx";
+import { useVolumeLabel } from "~/components/downloads/cache-volumes.tsx";
 import { Button } from "~/components/ui/button.tsx";
 import { Switch } from "~/components/ui/switch.tsx";
 import { errorMessage } from "~/lib/api.ts";
@@ -302,6 +303,7 @@ function NeedsAttention({ n }: { n: Dashboard["needsAttention"] }) {
 }
 
 function CacheSection({ c }: { c: Dashboard["cache"] }) {
+  const volumeLabel = useVolumeLabel();
   return (
     <Section title="缓存水位" icon={HardDrive} to={consolePath("downloads")}>
       {c.volumes.length === 0 ? (
@@ -321,7 +323,7 @@ function CacheSection({ c }: { c: Dashboard["cache"] }) {
             return (
               <li key={v.volumeKey} className="min-w-0">
                 <div className="flex items-center justify-between gap-2 text-sm">
-                  <span className="truncate font-medium">{v.volumeKey}</span>
+                  <span className="truncate font-medium">{volumeLabel(v)}</span>
                   <StatusBadge tone={pct === null ? "neutral" : over ? "destructive" : near ? "warning" : "success"}>
                     {pct === null ? "用量未知" : `${pct.toFixed(0)}%${over ? " 已达阈值" : ""}`}
                   </StatusBadge>
@@ -441,7 +443,7 @@ function RecentOutput({ items }: { items: Dashboard["recentOutput"] }) {
               <li key={r.recordId} className="min-w-0 py-2">
                 <div className="flex items-center justify-between gap-3 text-sm">
                   <Link to={consolePath("organize", r.recordId)} className="min-w-0 truncate hover:underline">
-                    {r.title ?? "未命名"}
+                    {r.title ?? "未关联作品"}
                   </Link>
                   <StatusBadge tone={s.tone}>{s.label}</StatusBadge>
                 </div>