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/schedule-board.tsx

@@ -3,7 +3,6 @@ import { SCHEDULE_CHANGED_EVENT, type ScheduledJob } from "@umt/contracts";
 import { AlertTriangle, Bot, CalendarClock, CircleCheck, Coins, LoaderCircle, Plus, XCircle } from "lucide-react";
 import { type ReactNode, useEffect, useRef, useState } from "react";
 import { useLocation } from "react-router";
-import { groupRunsBySchedule, useScheduleAgentRuns } from "~/api/agent.ts";
 import { usePiUpstreams } from "~/api/pi.ts";
 import { useScheduleBoard } from "~/api/schedules.ts";
 import { EmptyState, ErrorState, LoadingState } from "~/components/console/empty-state.tsx";
@@ -50,10 +49,8 @@ export function useLiveSchedules() {
   return useScheduleBoard();
 }
 
-const WEEK_MS = 7 * 24 * 3600_000;
-
-/** 两节的计数:自动任务 启用/失败/运行中;巡检 启用/失败/近 7 天费用 */
-export function planStats(items: ScheduledJob[], checkCosts: { at: string; cost: number | undefined }[], now: number) {
+/** 两节的计数:自动任务 启用/失败/运行中;巡检 启用/失败/近 7 天费用(后端按巡检汇总的 agentRuns) */
+export function planStats(items: ScheduledJob[]) {
   const auto = items.filter((j) => j.kind === "task");
   const checks = items.filter((j) => j.kind === "agent_check");
   const count = (list: ScheduledJob[]) => ({
@@ -62,13 +59,12 @@ export function planStats(items: ScheduledJob[], checkCosts: { at: string; cost:
     failed: list.filter((j) => j.lastStatus === "failed").length,
     running: list.filter((j) => !!j.runningSince).length,
   });
-  const recent = checkCosts.filter((c) => now - new Date(c.at).getTime() <= WEEK_MS);
   return {
     auto: count(auto),
     checks: {
       ...count(checks),
-      weekRuns: recent.length,
-      weekCost: recent.reduce((s, c) => s + (c.cost ?? 0), 0),
+      weekRuns: checks.reduce((s, j) => s + (j.agentRuns?.weekCount ?? 0), 0),
+      weekCost: checks.reduce((s, j) => s + (j.agentRuns?.weekCostUsd ?? 0), 0),
     },
   };
 }
@@ -89,7 +85,6 @@ function SectionHead({ id, title, hint, actions }: { id: string; title: string;
 
 export function PlanBoard({ highlightJob }: { highlightJob?: string }) {
   const board = useLiveSchedules();
-  const agentRuns = useScheduleAgentRuns();
   const upstreams = usePiUpstreams();
   const now = useNow();
   const { hash } = useLocation();
@@ -100,14 +95,9 @@ export function PlanBoard({ highlightJob }: { highlightJob?: string }) {
   const items = data?.items ?? [];
   const autoJobs = items.filter((j) => j.kind === "task");
   const checks = items.filter((j) => j.kind === "agent_check");
-  const runsByJob = groupRunsBySchedule(agentRuns.data ?? []);
   const def = upstreams.data?.items.find((u) => u.isDefault);
   const upstream: DefaultUpstream = def ? { name: def.name, model: def.defaultModel ?? null } : null;
-  const s = planStats(
-    items,
-    (agentRuns.data ?? []).map((r) => ({ at: r.createdAt, cost: r.usage.costUsd })),
-    now,
-  );
+  const s = planStats(items);
   const val = (n: number) => (board.isPending ? "…" : board.isError ? "—" : n);
 
   // 首页计数链到 #auto / #checks:数据到了再滚过去
@@ -163,8 +153,8 @@ export function PlanBoard({ highlightJob }: { highlightJob?: string }) {
             <StatTile
               label="近 7 天费用"
               icon={Coins}
-              value={agentRuns.isPending ? "…" : agentRuns.isError ? "—" : formatUsd(s.checks.weekCost)}
-              hint={agentRuns.data ? `${s.checks.weekRuns} 次会话` : undefined}
+              value={data ? formatUsd(s.checks.weekCost) : "…"}
+              hint={data ? `${s.checks.weekRuns} 次会话` : undefined}
               onClick={() => jump("checks")}
             />
           </div>
@@ -221,7 +211,6 @@ export function PlanBoard({ highlightJob }: { highlightJob?: string }) {
                     key={j.id}
                     job={j}
                     now={now}
-                    runs={runsByJob.get(j.id) ?? []}
                     upstream={upstream}
                     highlight={highlightJob === j.id}
                     onEdit={(job) => setEditing({ job, key: Date.now() })}