fix(energy): 待核对上线期初改为 2026-01-01，并统一前后端口径

待核对订单的起算日原先硬编码为 2026-05-01，散落在后端 SQL、看板诊断卡
和下钻提示三处，改一处就会与另两处口径不一致。

- 新增 shared/hydrogen-verify.ts 的 HYDROGEN_VERIFY_START_DATE 作为唯一来源
- repository 的 unverified 过滤条件改为引用该常量，起算日提前到 2026-01-01
- 看板桌面/移动诊断卡与待核对下钻提示同步显示新日期
- 契约测试锁定字面量，防止日期被无意改动

仅影响 verifyScope=unverified；all / verified 口径不变。

src/modules/energy/hydrogen/board/EnergyBiBoardApp.tsx

@@ -21,6 +21,7 @@ import {
   Zap,
 } from 'lucide-react';
 import { exportAoaSheet } from '../../../../shared/xlsx';
+import { HYDROGEN_VERIFY_START_DATE } from '../../../../shared/hydrogen-verify';
 import { MobileListFullscreenButton } from '../common/MobileListFullscreenButton';
 import {
   SOURCE_LABEL,
@@ -2136,7 +2137,7 @@ export const EnergyBiBoardApp: React.FC = () => {
                 <button type="button" className="ehb-diagnosis__item is-action" onClick={() => setKpiDrillType('待核对订单')} title="查看待核对订单">
                   <span>待核对订单</span>
                   <strong className={risk.count > 0 ? 'is-warning' : ''}>{risk.count}笔 · ¥{unverifiedWan}万</strong>
-<small>核对上线期初：2026-05-01（含）· 查看待核对订单</small>
+<small>核对上线期初：{HYDROGEN_VERIFY_START_DATE}（含）· 查看待核对订单</small>
                 </button>
               </section>
               </div>
@@ -2155,7 +2156,7 @@ export const EnergyBiBoardApp: React.FC = () => {
                 <div><span>月度环比</span><strong className={liveMonthComparison && liveMonthComparison.value < 0 ? 'is-warning' : 'is-positive'}>{liveMonthComparison ? `${liveMonthComparison.value >= 0 ? '+' : ''}${liveMonthComparison.value.toFixed(1)}%` : '—'}</strong><small>{liveMonthComparison?.label ?? '暂无可比月份'}</small></div>
                 <div><span>单公斤毛利</span><strong>¥{unitProfitYuan}<small>/kg</small></strong><small>按累计加氢量计算</small></div>
                 <button type="button" className="ehb-mobile-diagnosis-action" onClick={() => setKpiDrillType('加氢站加氢量排名')}><span>头部站点占比</span><strong>{top5SharePct}%</strong><small>前5站占总量</small></button>
-                <button type="button" className="ehb-mobile-diagnosis-action" onClick={() => setKpiDrillType('待核对订单')}><span>待核对订单</span><strong className={risk.count > 0 ? 'is-warning' : ''}>{risk.count}笔</strong><small>¥{unverifiedWan}万 · 上线期初 2026-05-01（含）</small></button>
+                <button type="button" className="ehb-mobile-diagnosis-action" onClick={() => setKpiDrillType('待核对订单')}><span>待核对订单</span><strong className={risk.count > 0 ? 'is-warning' : ''}>{risk.count}笔</strong><small>¥{unverifiedWan}万 · 上线期初 {HYDROGEN_VERIFY_START_DATE}（含）</small></button>
               </div>
             </details>