feat(schedules): per-check cost and model summary on GET /schedules (INT-3)

agent_check items carry agentRuns (last 100 sessions: last/avg cost, 7-day count and cost,
models, recent 3); plan page and home plan band use it instead of fetching agent runs.
Migration 0052 indexes agent_run(created_by, created_at).

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

apps/web/app/components/schedules/agent-check-card.tsx

@@ -1,10 +1,4 @@
-import {
-  type AgentCheckConfig,
-  type AgentRun,
-  CAPABILITY_CATALOG,
-  type KnownCapabilityId,
-  type ScheduledJob,
-} from "@umt/contracts";
+import { type AgentCheckConfig, CAPABILITY_CATALOG, type KnownCapabilityId, type ScheduledJob } from "@umt/contracts";
 import { History, LoaderCircle, Pencil, Play, RotateCcw, SkipForward, Trash2 } from "lucide-react";
 import { type ReactNode, useEffect, useRef } from "react";
 import { Link } from "react-router";
@@ -39,6 +33,9 @@ const capTitle = (id: string) => CAPABILITY_CATALOG[id as KnownCapabilityId]?.ti
 /** 默认上游(巡检没有单独的上游设置,跟随 Agent 设置里的默认上游) */
 export type DefaultUpstream = { name: string; model: string | null } | null;
 
+const modelsTitle = (models: { provider: string | null; model: string; count: number }[]) =>
+  models.map((m) => `${m.provider ? `${m.provider} · ` : ""}${m.model}:${m.count} 次`).join("\n");
+
 function Field({ label, children }: { label: string; children: ReactNode }) {
   return (
     <>
@@ -51,7 +48,6 @@ function Field({ label, children }: { label: string; children: ReactNode }) {
 export function AgentCheckCard({
   job,
   now,
-  runs,
   upstream,
   highlight,
   onEdit,
@@ -59,8 +55,6 @@ export function AgentCheckCard({
 }: {
   job: ScheduledJob;
   now: number;
-  /** 该巡检最近的会话(新 → 旧) */
-  runs: AgentRun[];
   upstream: DefaultUpstream;
   highlight: boolean;
   onEdit: (job: ScheduledJob) => void;
@@ -77,9 +71,9 @@ export function AgentCheckCard({
   const budget = c.budget ?? {};
   const allow = c.capabilityAllowlist ?? [];
   const last = job.lastStatus ? RUN_STATUS[job.lastStatus] : null;
-  const latest = runs[0] ?? null;
-  const costs = runs.map((r) => r.usage.costUsd).filter((v): v is number => typeof v === "number");
-  const avg = costs.length ? costs.reduce((s, v) => s + v, 0) / costs.length : null;
+  // 费用 / 模型由后端按最近 100 次会话汇总(GET /schedules 的 agentRuns)
+  const stats = job.agentRuns;
+  const runs = stats?.recent ?? [];
   const budgetParts = [
     budget.maxToolCalls ? `${budget.maxToolCalls} 次调用` : null,
     budget.maxDurationSec ? `${budget.maxDurationSec} 秒` : null,
@@ -149,10 +143,13 @@ export function AgentCheckCard({
         </Field>
         <Field label="预算">{budgetParts.length ? budgetParts.join(" · ") : "默认"}</Field>
         <Field label="上游">
-          {latest?.model ? (
-            <span className="break-words">
-              {latest.provider ? `${latest.provider} · ` : ""}
-              {latest.model}
+          {stats?.lastModel ? (
+            <span className="break-words" title={modelsTitle(stats.models)}>
+              {stats.lastProvider ? `${stats.lastProvider} · ` : ""}
+              {stats.lastModel}
+              {stats.models.length > 1 ? (
+                <span className="text-muted-foreground"> 等 {stats.models.length} 个模型</span>
+              ) : null}
             </span>
           ) : upstream ? (
             <span className="break-words">
@@ -182,12 +179,12 @@ export function AgentCheckCard({
           </span>
         </Field>
         <Field label="每次费用">
-          {costs.length ? (
+          {stats?.count ? (
             <span className="tabular-nums">
-              上次 {formatUsd(costs[0])}
+              上次 {formatUsd(stats.lastCostUsd)}
               <span className="text-muted-foreground">
                 {" "}
-                · 近 {costs.length} 次平均 {formatUsd(avg)}
+                · 近 {stats.count} 次平均 {formatUsd(stats.avgCostUsd)}
               </span>
             </span>
           ) : (
@@ -225,7 +222,7 @@ export function AgentCheckCard({
                     <span className="min-w-0 flex-1 truncate" title={r.summary ?? undefined}>
                       {plainSummary(r.summary ?? r.goal)}
                     </span>
-                    <span className="shrink-0 tabular-nums">{formatUsd(r.usage.costUsd)}</span>
+                    <span className="shrink-0 tabular-nums">{formatUsd(r.costUsd)}</span>
                     <span className="shrink-0" title={r.createdAt}>
                       {formatRelative(r.finishedAt ?? r.createdAt)}
                     </span>