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/business-tasks.tsx

@@ -15,6 +15,7 @@ import { useQueryState } from "~/components/console/use-query-state.ts";
 import { Button } from "~/components/ui/button.tsx";
 import { relTime } from "~/components/workbench/release-fields.ts";
 import { errorMessage, TTL_SECOND } from "~/lib/api.ts";
+import { actorText } from "~/lib/labels.ts";
 import { formatDateTime } from "~/lib/utils.ts";
 
 // 业务任务(/tasks):引擎只负责推进,task 表是面向用户的投影;取消只停后续步骤,重试只对失败任务。
@@ -201,7 +202,7 @@ export function BusinessTasks() {
       key: "by",
       header: "触发",
       hideBelow: "lg",
-      cell: (t) => <span className="text-muted-foreground">{t.triggeredBy ?? "—"}</span>,
+      cell: (t) => <span className="text-muted-foreground">{actorText(t.triggeredBy)}</span>,
     },
     {
       key: "at",
@@ -294,7 +295,7 @@ export function TaskSummary({ t }: { t: Task }) {
         <KvList
           items={[
             { label: "尝试", value: `${t.attempts}/${t.maxAttempts}` },
-            { label: "触发", value: t.triggeredBy },
+            { label: "触发", value: actorText(t.triggeredBy) },
             { label: "创建", value: formatDateTime(t.createdAt) },
             { label: "开始", value: formatDateTime(t.startedAt) },
             { label: "结束", value: formatDateTime(t.finishedAt) },