fix(wecom): 经营报告截账至发送日前一天24点

日报、周报、月报均不含发送当天发生额，避免盘中数据未闭合。

packages/domain/src/wecom-report.test.ts

@@ -25,11 +25,12 @@ const emptyStats = {
 };
 
 describe('wecomReportPeriod', () => {
-  it('daily is the Shanghai calendar day', () => {
+  it('daily is the previous Shanghai calendar day (closed at send-day 00:00)', () => {
     const p = wecomReportPeriod('daily', new Date('2026-09-02T20:00:00+08:00'));
-    expect(p.periodKey).toBe('2026-09-02');
+    expect(p.periodKey).toBe('2026-09-01');
     expect(p.incrementLabel).toBe('当日新增');
-    expect(p.start.toISOString()).toBe(new Date('2026-09-02T00:00:00+08:00').toISOString());
+    expect(p.start.toISOString()).toBe(new Date('2026-09-01T00:00:00+08:00').toISOString());
+    expect(p.endExclusive.toISOString()).toBe(new Date('2026-09-02T00:00:00+08:00').toISOString());
   });
 
   it('weekly is the previous natural week', () => {
@@ -37,26 +38,28 @@ describe('wecomReportPeriod', () => {
     expect(p.periodKey).toBe('2026-08-24');
     expect(p.rangeLabel).toBe('2026-08-24 ~ 2026-08-30');
     expect(p.incrementLabel).toBe('本期新增');
+    expect(p.endExclusive.toISOString()).toBe(new Date('2026-08-31T00:00:00+08:00').toISOString());
   });
 
   it('monthly is the previous natural month', () => {
     const p = wecomReportPeriod('monthly', new Date('2026-09-01T09:00:00+08:00'));
     expect(p.periodKey).toBe('2026-08');
     expect(p.title).toBe('月报（2026年8月）');
+    expect(p.endExclusive.toISOString()).toBe(new Date('2026-09-01T00:00:00+08:00').toISOString());
   });
 });
 
 describe('wecomReportCutoff', () => {
-  it('caps an in-progress daily period at now', () => {
+  it('daily closes at send-day midnight, not send clock time', () => {
     const now = new Date('2026-09-02T20:00:00+08:00');
     const p = wecomReportPeriod('daily', now);
-    expect(wecomReportCutoff(p, now).getTime()).toBe(now.getTime());
+    expect(wecomReportCutoff(p).getTime()).toBe(new Date('2026-09-02T00:00:00+08:00').getTime());
   });
 
   it('uses period end for a completed week', () => {
     const now = new Date('2026-09-02T09:00:00+08:00');
     const p = wecomReportPeriod('weekly', now);
-    expect(wecomReportCutoff(p, now).getTime()).toBe(p.endExclusive.getTime());
+    expect(wecomReportCutoff(p).getTime()).toBe(p.endExclusive.getTime());
   });
 });
 
@@ -86,7 +89,7 @@ describe('wecomReportShouldFire', () => {
     expect(
       wecomReportShouldFire(
         'daily',
-        { ...base, lastSentPeriod: '2026-09-02' },
+        { ...base, lastSentPeriod: '2026-09-01' },
         new Date('2026-09-02T21:00:00+08:00'),
       ),
     ).toBe(false);
@@ -125,7 +128,7 @@ describe('formatWecomReportMarkdown', () => {
   it('renders stock plus increment lines', () => {
     const p = wecomReportPeriod('daily', new Date('2026-09-02T20:00:00+08:00'));
     const md = formatWecomReportMarkdown(p, emptyStats);
-    expect(md).toContain('**杜康好客 · 日报（2026-09-02）**');
+    expect(md).toContain('**杜康好客 · 日报（2026-09-01）**');
     expect(md).toContain('用户数量：10（当日新增 2）');
     expect(md).toContain('订单金额：1000.00（当日新增 80.50）');
     expect(md).toContain('核销单数量：8（当日新增 3）');

packages/domain/src/wecom-report.ts

@@ -67,15 +67,21 @@ function lastDayOfShanghaiMonth(year: number, month: number): number {
   return Number(shanghaiYmd(new Date(shanghaiMonthRange(year, month).endExclusive.getTime() - 1)).slice(8, 10));
 }
 
-/** 日报=当天；周报=上一自然周；月报=上一自然月（北京日历） */
+/** 发送日北京 0 点 = 前一天 24 点，账期不含发送当天 */
+export function wecomReportAsOf(now = new Date()): Date {
+  return startOfShanghaiDay(now);
+}
+
+/** 日报=昨日；周报=上一自然周；月报=上一自然月。期末均为某日 0 点。 */
 export function wecomReportPeriod(kind: WecomReportKind, now = new Date()): WecomReportPeriod {
+  const asOf = wecomReportAsOf(now);
   if (kind === 'daily') {
-    const start = startOfShanghaiDay(now);
+    const start = addShanghaiDays(asOf, -1);
     const ymd = shanghaiYmd(start);
     return {
       kind,
       start,
-      endExclusive: addShanghaiDays(start, 1),
+      endExclusive: asOf,
       periodKey: ymd,
       title: `日报（${ymd}）`,
       rangeLabel: ymd,
@@ -83,7 +89,7 @@ export function wecomReportPeriod(kind: WecomReportKind, now = new Date()): Weco
     };
   }
   if (kind === 'weekly') {
-    const { start, endExclusive } = previousShanghaiWeek(now);
+    const { start, endExclusive } = previousShanghaiWeek(asOf);
     const from = shanghaiYmd(start);
     const to = shanghaiYmd(new Date(endExclusive.getTime() - 1));
     return {
@@ -96,7 +102,7 @@ export function wecomReportPeriod(kind: WecomReportKind, now = new Date()): Weco
       incrementLabel: '本期新增',
     };
   }
-  const { year, month } = previousShanghaiMonth(now);
+  const { year, month } = previousShanghaiMonth(asOf);
   const { start, endExclusive } = shanghaiMonthRange(year, month);
   return {
     kind,
@@ -109,9 +115,9 @@ export function wecomReportPeriod(kind: WecomReportKind, now = new Date()): Weco
   };
 }
 
-/** 进行中的周期截到 now，已结束的周期用期末 */
-export function wecomReportCutoff(period: WecomReportPeriod, now = new Date()): Date {
-  return now.getTime() < period.endExclusive.getTime() ? now : period.endExclusive;
+/** 账期期末：发送日 0 点或上一周/月结束 0 点，不含发送当天发生额 */
+export function wecomReportCutoff(period: WecomReportPeriod): Date {
+  return period.endExclusive;
 }
 
 export function wecomReportDueAt(kind: WecomReportKind, schedule: WecomReportSchedule, now = new Date()): Date {