fix(frontend): display plugin data source names

frontend/src/components/Layout.tsx

@@ -64,6 +64,7 @@ import { useDialogBackdrop } from '@/lib/useDialogBackdrop'
 import { resolveWatchlistGroupColor } from '@/lib/watchlist-group-colors'
 import { computeGroupPcts, groupPctColor, groupPctTitle } from '@/lib/watchlistGroupStats'
 import { fmtPct } from '@/lib/format'
+import { findDataSource } from '@/lib/dataSources'
 import { toggleTheme, useTheme } from '@/lib/theme'
 import { setCurrentTotal as setAlertTotal, useUnreadAlerts } from '@/lib/monitorBadge'
 import { ExtensionSlot } from '@/extensions/ExtensionSlot'
@@ -493,10 +494,10 @@ export function Layout() {
   const realtimeUnavailable = quoteMode === 'none'
   const isWatchlistMode = quoteMode === 'watchlist'
   const realtimeModeLabel = isWatchlistMode ? '自选股' : '全市场'
-  // 当前实时行情数据源名称 (custom 时显示源名, tickflow 时不显示)
+  // 当前实时行情数据源名称 (插件/自定义源显示源名, tickflow 不显示)
   const realtimeProvider = prefs?.realtime_data_provider
   const realtimeProviderName = realtimeProvider && realtimeProvider !== 'tickflow'
-    ? (dataSources?.custom?.find(s => s.name === realtimeProvider)?.display_name || realtimeProvider)
+    ? (findDataSource(dataSources, realtimeProvider)?.display_name || realtimeProvider)
     : null
   const realtimeToggleDisabled = toggleQuote.isPending || isPaused
   const realtimeActive = realtimeEnabled && isRunning && isTrading

frontend/src/lib/dataSources.ts

@@ -0,0 +1,11 @@
+import type { DataSourcesResponse } from './api'
+
+export function findDataSource(
+  sources: DataSourcesResponse | undefined,
+  name: string | undefined,
+) {
+  if (!sources || !name) return undefined
+  return sources.builtin.find(source => source.name === name)
+    ?? sources.plugins.find(source => source.name === name)
+    ?? sources.custom.find(source => source.name === name)
+}

frontend/src/pages/Data.tsx

@@ -36,6 +36,7 @@ import { QK } from '@/lib/queryKeys'
 import { PageHeader } from '@/components/PageHeader'
 import { useAdjFactorSyncGate } from '@/components/AdjFactorSyncGate'
 import { formatScheduleDatePart, formatScheduleTimePart, isToday } from '@/lib/format'
+import { findDataSource } from '@/lib/dataSources'
 
 // 拆分出的子组件
 import { StatCard, type FieldTab, type CapLimitValue } from '@/components/data/StatCard'
@@ -193,7 +194,7 @@ export function Data() {
   const activeProvider = prefs.data?.daily_data_provider || 'tickflow'
   const activeDataSourceName = activeProvider === 'tickflow'
     ? 'TickFlow'
-    : (dataSources.data?.custom?.find(s => s.name === activeProvider)?.display_name || activeProvider)
+    : (findDataSource(dataSources.data, activeProvider)?.display_name || activeProvider)
 
   // —— 能力路由门控 (全项目统一判定) ——
   // usable = 生效源当前能否提供该能力 (含插件/自定义源; TickFlow 档位不足则不可用),