feat(web): W4-A wire console to real endpoints

- Agent page uses contracts (AgentRun/AgentRunDetail/AgentGoalReport) instead of a local
  mirror; ?mock=1 stays as an explicit demo switch; run snapshot refreshes on agent.run_status;
  stream auto-follow only while the user stays near the bottom (abort stays reachable)
- settings: Pi provider select incl. fake, new Agent runtime card (budgets, fakeScript)
- download trace uses /tasks?subjectId= and /organization-records?downloadTaskId= instead of
  time-window engine run matching and path matching; new business-task tab with cancel/retry
- workbench download dialog posts /acquisition-plans and shows per-slot rejection reasons
- preference tag revision history; subscription search by title/kind; identity/alias/subscription
  lists show entity titles; slot cards show current asset summary; policy preview sample titles
- DecisionSummary / IdentityRevisionList / ReleaseIdentityResult / TaskAccepted / PolicyPreviewSummary /
  OrganizePlanArtifactContent taken from contracts
- docs: SSE for console (cookie) vs GET /events?after=&limit= JSON replay for API keys

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

apps/web/app/routes/console/tasks.tsx

@@ -18,6 +18,7 @@ import { JsonView } from "~/components/console/json-view.tsx";
 import { KvList } from "~/components/console/kv-list.tsx";
 import { PageHeader } from "~/components/console/page-header.tsx";
 import { StatusBadge } from "~/components/console/status-badge.tsx";
+import { BusinessTasks } from "~/components/downloads/business-tasks.tsx";
 import { CacheVolumes } from "~/components/downloads/cache-volumes.tsx";
 import {
   DownloadDetail,
@@ -171,6 +172,7 @@ export default function TasksPage() {
         <TabsList>
           <TabsTrigger value="downloads">下载任务</TabsTrigger>
           <TabsTrigger value="plans">下载计划</TabsTrigger>
+          <TabsTrigger value="tasks">业务任务</TabsTrigger>
         </TabsList>
         <TabsContent value="downloads">
           <FilterBar
@@ -246,6 +248,9 @@ export default function TasksPage() {
             }}
           />
         </TabsContent>
+        <TabsContent value="tasks">
+          <BusinessTasks />
+        </TabsContent>
       </Tabs>
 
       <DetailSheet