refactor(stage3): 下线 5 个无调用方的 legacy 氢能接口

先确认调用方再删：/hydrogen/station-board 被单站日报页面（StationDailyApp /
StationDailyDetailView）实际使用，必须保留；其余 5 个确认零调用方。

- 删服务端路由 hydrogen-overview / -overview-detail / -daily / -daily-detail /
  -settlement（约 1,080 行），energy/index.ts 保留原有注册顺序语义。
- 删客户端对应请求函数与类型：api.ts 由 202 行精简为 74 行；
  types.ts 由 291 行精简为 112 行（只保留 StationBoard / Electric / ETC 闭包）。
- 顺带修正命名：HydrogenDailyQuery -> EnergyRangeQuery（它服务于电能按月接口）。
- routes.test.ts 同步收敛：删除 settlement / overview 两个已下线接口的测试，
  '四个处理器' 改为只覆盖电能；路由顺序断言更新为现存 9 条。
  电能 SQL 指纹沿用原值，证明取数口径未变。

测试 131 -> 128（删掉的 3 个用例覆盖的是已下线接口）。lint / test / build 全绿。

src/modules/energy/api.ts

@@ -1,117 +1,17 @@
 import { fetchJson } from '../../auth/api-client';
 import type {
-  HydrogenKpi, HydrogenStationTop, HydrogenRegionShare, HydrogenMonthlyPoint, HydrogenDailyRow,
-  HydrogenCustomerRow, HydrogenStationFull,
   ElectricKpi, ElectricDailyRow, ElectricMonthGroup,
   CustomerType, DateQuickPick,
   HydrogenStationBoardResponse,
-  HydrogenDailyDetailResponse,
-  HydrogenOverviewDetailGroupBy,
-  HydrogenOverviewDetailResponse,
 } from './types';
 
 const BASE = '/api/energy';
 
-export interface HydrogenOverviewResponse {
-  kpi: HydrogenKpi;
-  top5: HydrogenStationTop[];
-  regions: HydrogenRegionShare[];
-  monthly: HydrogenMonthlyPoint[];
-  customers: HydrogenCustomerRow[];
-  stations: HydrogenStationFull[];
-  availableYears: number[];
-  year: number;
-  latestLedgerTime: string | null;
-  filter: {
-    stationId: number | null;
-    vehicleScope: HydrogenVehicleScope;
-    verifyScope: HydrogenVerifyScope;
-  };
-}
-
-export type HydrogenVehicleScope = 'all' | 'lingniu' | 'external';
-export type HydrogenVerifyScope = 'all' | 'verified';
-
-export interface HydrogenOverviewQuery {
-  year?: number;
-  stationId?: number | null;
-  vehicleScope?: HydrogenVehicleScope;
-  verifyScope?: HydrogenVerifyScope;
-  force?: boolean;
-}
-
-export function fetchHydrogenOverview(query: HydrogenOverviewQuery = {}): Promise<HydrogenOverviewResponse> {
-  const params = new URLSearchParams();
-  if (query.year) params.set('year', String(query.year));
-  if (query.stationId) params.set('stationId', String(query.stationId));
-  if (query.vehicleScope && query.vehicleScope !== 'all') params.set('vehicleScope', query.vehicleScope);
-  if (query.verifyScope === 'verified') params.set('verifyScope', 'verified');
-  if (query.force) params.set('force', '1');
-  const q = params.toString();
-  return fetchJson<HydrogenOverviewResponse>(`${BASE}/hydrogen/overview${q ? `?${q}` : ''}`);
-}
-
-export interface HydrogenOverviewDetailQuery {
-  year: number;
-  vehicleScope?: HydrogenVehicleScope;
-  verifyScope?: HydrogenVerifyScope;
-  stationId?: number | null;
-  month?: string | null;
-  date?: string | null;
-  customerName?: string | null;
-  customerId?: number | null;
-  plateNo?: string | null;
-  region?: string | null;
-  regionGranularity?: 'province' | 'city';
-  groupBy?: HydrogenOverviewDetailGroupBy | null;
-  limit?: number;
-}
-
-export function fetchHydrogenOverviewDetail(query: HydrogenOverviewDetailQuery): Promise<HydrogenOverviewDetailResponse> {
-  const params = new URLSearchParams({ year: String(query.year) });
-  if (query.vehicleScope && query.vehicleScope !== 'all') params.set('vehicleScope', query.vehicleScope);
-  if (query.verifyScope === 'verified') params.set('verifyScope', 'verified');
-  if (query.stationId) params.set('stationId', String(query.stationId));
-  if (query.month) params.set('month', query.month);
-  if (query.date) params.set('date', query.date);
-  if (query.customerName) params.set('customerName', query.customerName);
-  if (query.customerId !== null && query.customerId !== undefined) params.set('customerId', String(query.customerId));
-  if (query.plateNo) params.set('plateNo', query.plateNo);
-  if (query.region) params.set('region', query.region);
-  if (query.regionGranularity) params.set('regionGranularity', query.regionGranularity);
-  if (query.groupBy) params.set('groupBy', query.groupBy);
-  if (query.limit) params.set('limit', String(query.limit));
-  return fetchJson<HydrogenOverviewDetailResponse>(`${BASE}/hydrogen/overview-detail?${params.toString()}`);
-}
-
-export interface HydrogenDailyQuery {
-  range?: DateQuickPick;
-  startDate?: string;
-  endDate?: string;
-  verifyScope?: HydrogenVerifyScope;
-}
-
-export function fetchHydrogenDaily(query: HydrogenDailyQuery, customer: CustomerType): Promise<HydrogenDailyRow[]> {
-  const q = new URLSearchParams({ customer });
-  if (query.range) q.set('range', query.range);
-  if (query.startDate) q.set('startDate', query.startDate);
-  if (query.endDate) q.set('endDate', query.endDate);
-  if (query.verifyScope === 'verified') q.set('verifyScope', 'verified');
-  return fetchJson<HydrogenDailyRow[]>(`${BASE}/hydrogen/daily?${q.toString()}`);
-}
-
-export function fetchHydrogenDailyDetail(
-  date: string,
-  customer: CustomerType,
-  stationId?: number | null,
-  verifyScope: HydrogenVerifyScope = 'all',
-): Promise<HydrogenDailyDetailResponse> {
-  const params = new URLSearchParams({ date, customer });
-  if (stationId) params.set('stationId', String(stationId));
-  if (verifyScope === 'verified') params.set('verifyScope', 'verified');
-  return fetchJson<HydrogenDailyDetailResponse>(`${BASE}/hydrogen/daily-detail?${params.toString()}`);
-}
-
+/**
+ * 氢能单站日报数据源。
+ * 注意：该接口路径仍带 `/hydrogen` 前缀（历史命名），但为当前单站日报页面在用，
+ * 与已下线的 `/hydrogen/overview|daily|settlement` 等旧接口无关。
+ */
 export interface HydrogenStationBoardQuery {
   startDate: string;
   endDate: string;
@@ -126,6 +26,13 @@ export function fetchHydrogenStationBoard(query: HydrogenStationBoardQuery): Pro
   return fetchJson<HydrogenStationBoardResponse>(`${BASE}/hydrogen/station-board?${params.toString()}`);
 }
 
+/** 电能与 ETC 共用的自然日区间查询参数。 */
+export interface EnergyRangeQuery {
+  range?: DateQuickPick;
+  startDate?: string;
+  endDate?: string;
+}
+
 export interface ElectricOverviewResponse {
   kpi: ElectricKpi;
   trend: ElectricDailyRow[];
@@ -136,12 +43,15 @@ export function fetchElectricOverview(): Promise<ElectricOverviewResponse> {
   return fetchJson<ElectricOverviewResponse>(`${BASE}/electric/overview`);
 }
 
-export function fetchElectricMonthly(customer: CustomerType, query: HydrogenDailyQuery = { range: 'last15' }): Promise<ElectricMonthGroup[]> {
-  const q = new URLSearchParams({ customer });
-  if (query.range) q.set('range', query.range);
-  if (query.startDate) q.set('startDate', query.startDate);
-  if (query.endDate) q.set('endDate', query.endDate);
-  return fetchJson<ElectricMonthGroup[]>(`${BASE}/electric/monthly?${q.toString()}`);
+export function fetchElectricMonthly(
+  customer: CustomerType,
+  query: EnergyRangeQuery = { range: 'last15' },
+): Promise<ElectricMonthGroup[]> {
+  const params = new URLSearchParams({ customer });
+  if (query.range) params.set('range', query.range);
+  if (query.startDate) params.set('startDate', query.startDate);
+  if (query.endDate) params.set('endDate', query.endDate);
+  return fetchJson<ElectricMonthGroup[]>(`${BASE}/electric/monthly?${params.toString()}`);
 }
 
 export interface EtcOverviewResponse {
@@ -158,45 +68,3 @@ export interface EtcOverviewResponse {
 export function fetchEtcOverview(force = false): Promise<EtcOverviewResponse> {
   return fetchJson<EtcOverviewResponse>(`${BASE}/etc/overview${force ? '?force=1' : ''}`);
 }
-
-export type HydrogenSettlementRange = DateQuickPick | 'latest';
-
-export interface HydrogenSettlementRow {
-  date: string;
-  stationId: number | null;
-  stationName: string;
-  amount: number;
-  paymentCount: number;
-  matchMode: 'exact' | 'manual' | 'group' | 'unmatched';
-}
-
-export interface HydrogenSettlementResponse {
-  range: { start: string | null; end: string | null; mode: HydrogenSettlementRange | 'custom' };
-  summary: {
-    amount: number;
-    paymentCount: number;
-    stationDayCount: number;
-    stationCount: number;
-    latestPaymentDate: string | null;
-  };
-  rows: HydrogenSettlementRow[];
-}
-
-export interface HydrogenSettlementQuery {
-  range?: HydrogenSettlementRange | 'custom';
-  startDate?: string;
-  endDate?: string;
-}
-
-export function buildHydrogenSettlementQuery(query: HydrogenSettlementQuery = {}) {
-  const params = new URLSearchParams();
-  if (query.range) params.set('range', query.range);
-  if (query.startDate) params.set('startDate', query.startDate);
-  if (query.endDate) params.set('endDate', query.endDate);
-  return params.toString();
-}
-
-export function fetchHydrogenSettlement(query: HydrogenSettlementQuery = {}): Promise<HydrogenSettlementResponse> {
-  const q = buildHydrogenSettlementQuery(query);
-  return fetchJson<HydrogenSettlementResponse>(`${BASE}/hydrogen/settlement${q ? `?${q}` : ''}`);
-}