fix(backtest): 预热/同步期间统计为 null 不再误判缺数据禁用回测

backtestDataUnavailable 原判定 dataStatus.isSuccess && !earliestDate 在
busy 降级期间 (预热 indicators_ready=false / 同步修复 stats_pending=true,
enriched 统计为 null 是未知态) 恒为 true — 回测按钮被禁 + 常驻"缺少指标
数据, 请先同步"横幅, 与 Dashboard 已修的 warmup 误判同族 (stats_pending
契约: 空值不代表无数据)。补 statsPending 放行分支, 真实统计就绪且确无
数据时行为不变。

验证: StrategyBacktest.status.test 2 条 (busy 期无横幅 + 渲染无 TypeError;
就绪确无数据仍提示并禁用 — 修复前红/修复后绿); 全量 vitest 340 passed;
pnpm build 通过。

Signed-off-by: shy3130 <shy3130@qq.com>

frontend/src/pages/backtest/StrategyBacktest.status.test.tsx

@@ -0,0 +1,107 @@
+// @vitest-environment jsdom
+// 回归: 预热/同步/修复期间 (stats_pending / indicators_ready=false) 统计为 null 是未知态,
+// 不得误判"缺少指标数据"禁用运行回测按钮 (同 Dashboard 的 warmup 误判一族);
+// 真实统计就绪且确无数据时仍要禁用 + 提示。
+import { act } from 'react'
+import { createRoot, type Root } from 'react-dom/client'
+import { MemoryRouter } from 'react-router-dom'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import { afterEach, beforeEach, expect, it, vi } from 'vitest'
+import { StrategyBacktest } from './StrategyBacktest'
+import type { DataStatus } from '@/lib/api'
+
+vi.mock('@/lib/api', () => ({
+  api: {
+  dataStatus: vi.fn(),
+  screenerStrategies: vi.fn(async () => ({ presets: [] })),
+  strategyGet: vi.fn(async () => ({})),
+  watchlistList: vi.fn(async () => ({ items: [] })),
+  positionPolicyList: vi.fn(async () => ({ policies: [] })),
+  factorColumns: vi.fn(async () => ({ columns: [] })),
+  factorLibrary: vi.fn(async () => ({ factors: [] })),
+  instrumentSearch: vi.fn(async () => ({ results: [] })),
+  customSignalsList: vi.fn(async () => ({ signals: [] })),
+  customSignalsOptions: vi.fn(async () => ({ fields: [], operators: [] })),
+  capabilities: vi.fn(async () => ({ capabilities: {} })),
+  settings: vi.fn(async () => ({ onboarding_completed: true, mode: 'api_key', has_tickflow_key: true })),
+  preferences: vi.fn(async () => ({})),
+  dataSources: vi.fn(async () => []),
+  regimeRecompute: vi.fn(async () => ({ ok: true, computed: 0 })),
+  strategySaveConfig: vi.fn(async () => ({ ok: true })),
+  researchCandidateCreate: vi.fn(async () => ({})),
+  },
+  REGIME_STATE_LABELS: {} as Record<string, string>,
+  REGIME_STATE_COLORS: {} as Record<string, string>,
+}))
+vi.mock('@/lib/backtestTask', () => ({
+  startBacktest: vi.fn(),
+  stopBacktest: vi.fn(async () => {}),
+  tryReconnect: vi.fn(() => false),
+  clearBacktest: vi.fn(),
+  useBacktestTask: () => null,
+}))
+
+let host: HTMLDivElement
+let root: Root
+let client: QueryClient
+
+beforeEach(() => {
+  Object.assign(globalThis, { IS_REACT_ACT_ENVIRONMENT: true })
+  sessionStorage.clear()
+  host = document.createElement('div')
+  document.body.append(host)
+  root = createRoot(host)
+  client = new QueryClient({ defaultOptions: { queries: { retry: false } } })
+})
+
+afterEach(async () => {
+  await act(async () => root.unmount())
+  client.clear()
+  host.remove()
+  vi.restoreAllMocks()
+})
+
+const busy = {
+  indicators_ready: false, stats_pending: true,
+  daily: null, enriched: null, etf_enriched: null,
+} as unknown as DataStatus
+const readyNoData = {
+  indicators_ready: true, stats_pending: false,
+  daily: null, enriched: null, etf_enriched: null,
+} as unknown as DataStatus
+
+async function renderPage() {
+  const errors: unknown[] = []
+  const spy = vi.spyOn(console, 'error').mockImplementation((...args) => { errors.push(args) })
+  await act(async () => root.render(
+    <MemoryRouter><QueryClientProvider client={client}><StrategyBacktest /></QueryClientProvider></MemoryRouter>,
+  ))
+  await act(async () => { await new Promise(r => setTimeout(r, 80)) })
+  spy.mockRestore()
+  return errors
+}
+
+function runButton(): HTMLButtonElement | undefined {
+  return [...host.querySelectorAll('button')].find(b => b.textContent?.includes('运行回测'))
+}
+
+it('预热/同步期间统计为 null: 不提示缺数据, 回测按钮可用', async () => {
+  const { api } = await import('@/lib/api')
+  vi.mocked(api.dataStatus).mockResolvedValue(busy)
+
+  const errors = await renderPage()
+  // 核心误判: busy 未知态不得显示"缺少指标数据"横幅 (backtestDataUnavailable=false,
+  // 按钮的 disabled 另受"未选策略"影响, 不在此断言)
+  expect(host.textContent).not.toContain('缺少股票指标数据')
+  // 渲染期 TypeError 防线 (与数据页崩溃修复同族守护)
+  expect(errors.some(e => String(e).includes('TypeError'))).toBe(false)
+})
+
+it('真实统计就绪且确无数据: 提示缺数据并禁用回测', async () => {
+  const { api } = await import('@/lib/api')
+  vi.mocked(api.dataStatus).mockResolvedValue(readyNoData)
+
+  await renderPage()
+  expect(host.textContent).toContain('缺少股票指标数据')
+  expect(runButton()!.disabled).toBe(true)
+})

frontend/src/pages/backtest/StrategyBacktest.tsx

@@ -1147,7 +1147,10 @@ export function StrategyBacktest({ loadCandidate, onLoadConsumed }: {
     ? dataStatus.data?.etf_enriched
     : dataStatus.data?.enriched
   const earliestDate = backtestDataStatus?.earliest_date ?? null
-  const backtestDataUnavailable = dataStatus.isSuccess && !earliestDate
+  // 预热/同步/修复期间统计为 null 是未知态 (stats_pending 契约, 同 Dashboard.isDataStatusPending),
+  // 不得误判成"缺数据"禁用回测 — 等真实统计就绪再判
+  const statsPending = dataStatus.data?.stats_pending === true || dataStatus.data?.indicators_ready === false
+  const backtestDataUnavailable = dataStatus.isSuccess && !statsPending && !earliestDate
   const backtestDataLabel = assetType === 'etf' ? 'ETF 指标数据' : '股票指标数据'
 
   const resetConfigFromDetail = (detail: StrategyDetail) => {