refactor: surface BI metric definitions

src/modules/energy/ElectricModule.tsx

@@ -4,6 +4,7 @@ import ElectricView, { type ElectricSubTab } from './ElectricView';
 import SubTabs from './SubTabs';
 import { useHashSubTab } from './useHashSubTab';
 import { FadeIn, PageFrame } from '../../components/ui/surface';
+import MetricCatalogButton from '../../components/MetricCatalogButton';
 
 const SUB_TABS = [
   { id: 'daily',    label: '每日', icon: CalendarDays },
@@ -21,6 +22,7 @@ export default function ElectricModule() {
       icon={CalendarDays}
       eyebrow="ELECTRIC BI"
       meta="时间单位清晰标注 · 支持日/总览切换"
+      actions={<MetricCatalogButton domain="electric" />}
     >
       <SubTabs tabs={SUB_TABS} active={sub} onChange={setSub} />
       <AnimatePresence mode="wait">

src/modules/energy/EtcModule.tsx

@@ -1,6 +1,7 @@
 import { Receipt } from 'lucide-react';
 import ETCView from './ETCView';
 import { PageFrame } from '../../components/ui/surface';
+import MetricCatalogButton from '../../components/MetricCatalogButton';
 
 export default function EtcModule() {
   return (
@@ -10,6 +11,7 @@ export default function EtcModule() {
       icon={Receipt}
       eyebrow="ETC BI"
       meta="真实接入状态 · 指标口径已发布"
+      actions={<MetricCatalogButton domain="etc" />}
     >
       <ETCView />
     </PageFrame>

src/modules/energy/HydrogenModule.tsx

@@ -4,6 +4,7 @@ import HydrogenView, { type HydrogenSubTab } from './HydrogenView';
 import SubTabs from './SubTabs';
 import { useHashSubTab } from './useHashSubTab';
 import { FadeIn, PageFrame } from '../../components/ui/surface';
+import MetricCatalogButton from '../../components/MetricCatalogButton';
 
 const SUB_TABS = [
   { id: 'daily',    label: '每日', icon: CalendarDays },
@@ -21,6 +22,7 @@ export default function HydrogenModule() {
       icon={CalendarDays}
       eyebrow="ENERGY BI"
       meta="数据单位清晰标注 · 支持日/总览切换"
+      actions={<MetricCatalogButton domain="hydrogen" />}
     >
       <SubTabs tabs={SUB_TABS} active={sub} onChange={setSub} />
       <AnimatePresence mode="wait">

src/modules/mileage/MileageModule.tsx

@@ -6,6 +6,7 @@ import DailyReportView from './DailyReportView';
 import { useHashSubTab } from '../energy/useHashSubTab';
 import RotatingFooterHint from '../../components/RotatingFooterHint';
 import { FadeIn, PageFrame, SegmentedNav } from '../../components/ui/surface';
+import MetricCatalogButton from '../../components/MetricCatalogButton';
 
 type MileageSubTab = 'monitoring' | 'statistics' | 'report';
 
@@ -27,6 +28,7 @@ export default function MileageModule() {
       icon={LayoutDashboard}
       eyebrow="MILEAGE BI"
       meta="实时监控 · 统计报表 · 每日汇报"
+      actions={<MetricCatalogButton domain="mileage" />}
       compactInfo
     >
       <div className="sticky top-0 z-30 -mx-3 bg-[var(--app-bg)] px-3 pb-2 pt-1 shadow-[0_8px_12px_-12px_rgba(15,23,42,0.08)] md:-mx-6 md:top-12 md:px-6">