修复：统一领券与比价广告数百分位口径 (#92)

## 改动说明

- 将单次领券、比价广告数从线性插值百分位改为 nearest-rank 离散百分位
- 百分位结果始终取自真实观测样本，不再出现 13.5 条这类小数广告数
- 指标展示改为整数

## 线上数据复算

2026-07-24 正式业务口径：

- 领券 P5/P50/P95：`1/7/13.5` 修正为 `1/7/15`
- 比价 P5/P50/P95：`1/2/8.3` 修正为 `1/2/9`

## 验证

- 线上数据完整分组复算通过
- 空样本、单样本边界校验通过
- `npm run build` 通过（含 TypeScript 类型检查）

---------

Co-authored-by: guke <guke@wonderable.ai>
Co-authored-by: linkeyu <798648091@qq.com>
Reviewed-on: #92
Co-authored-by: linkeyu <linkeyu@wonderable.ai>
Co-committed-by: linkeyu <linkeyu@wonderable.ai>

src/app/(main)/ad-revenue-report/page.tsx

@@ -30,7 +30,7 @@ import {
 } from '@ant-design/icons';
 import dayjs, { type Dayjs } from 'dayjs';
 import { api, errMsg } from '@/lib/api';
-import { formatUtcTime, percentile } from '@/lib/format';
+import { formatUtcTime, nearestRankPercentile } from '@/lib/format';
 import type {
   AdRevenueDaily,
   AdRevenueHourly,
@@ -758,9 +758,9 @@ export default function AdRevenueReportPage() {
         .filter((item) => item.feed_scene === sceneName)
         .map((item) => item.sub_count ?? 1);
       return {
-        p5: percentile(counts, 0.05, false),
-        p50: percentile(counts, 0.5, false),
-        p95: percentile(counts, 0.95, false),
+        p5: nearestRankPercentile(counts, 0.05),
+        p50: nearestRankPercentile(counts, 0.5),
+        p95: nearestRankPercentile(counts, 0.95),
       };
     };
     return { coupon: summarize('coupon'), comparison: summarize('comparison') };
@@ -1083,12 +1083,12 @@ export default function AdRevenueReportPage() {
             </Typography.Text>
           </Divider>
           <Row gutter={[16, 12]}>
-            <Col span={4}><Statistic title="单次领券广告数 P5" value={sessionAdCounts.coupon.p5 ?? '-'} precision={1} /></Col>
-            <Col span={4}><Statistic title="单次领券广告数 P50" value={sessionAdCounts.coupon.p50 ?? '-'} precision={1} /></Col>
-            <Col span={4}><Statistic title="单次领券广告数 P95" value={sessionAdCounts.coupon.p95 ?? '-'} precision={1} /></Col>
-            <Col span={4}><Statistic title="单次比价广告数 P5" value={sessionAdCounts.comparison.p5 ?? '-'} precision={1} /></Col>
-            <Col span={4}><Statistic title="单次比价广告数 P50" value={sessionAdCounts.comparison.p50 ?? '-'} precision={1} /></Col>
-            <Col span={4}><Statistic title="单次比价广告数 P95" value={sessionAdCounts.comparison.p95 ?? '-'} precision={1} /></Col>
+            <Col span={4}><Statistic title="单次领券广告数 P5" value={sessionAdCounts.coupon.p5 ?? '-'} precision={0} /></Col>
+            <Col span={4}><Statistic title="单次领券广告数 P50" value={sessionAdCounts.coupon.p50 ?? '-'} precision={0} /></Col>
+            <Col span={4}><Statistic title="单次领券广告数 P95" value={sessionAdCounts.coupon.p95 ?? '-'} precision={0} /></Col>
+            <Col span={4}><Statistic title="单次比价广告数 P5" value={sessionAdCounts.comparison.p5 ?? '-'} precision={0} /></Col>
+            <Col span={4}><Statistic title="单次比价广告数 P50" value={sessionAdCounts.comparison.p50 ?? '-'} precision={0} /></Col>
+            <Col span={4}><Statistic title="单次比价广告数 P95" value={sessionAdCounts.comparison.p95 ?? '-'} precision={0} /></Col>
           </Row>
         </Card>
       )}

src/app/(main)/dashboard/page.tsx

@@ -710,7 +710,7 @@ export default function DashboardPage() {
         <div>
           <h1>数据大盘</h1>
           <p>
-            数据更新于 {updatedAt ?? '--'} · 北京时间 · 日期窗口按 00:00 自然日切分，不包含今日
+            数据更新于 {updatedAt ?? '--'} · 北京时间 · 日期窗口按 00:00 自然日切分，自定义日期可选择今日
           </p>
         </div>
         <div className="controls">
@@ -734,7 +734,7 @@ export default function DashboardPage() {
             format="YYYY-MM-DD"
             allowClear={false}
             open={datePickerOpen}
-            disabledDate={(date) => date.isAfter(dayjs().subtract(1, 'day'), 'day')}
+            disabledDate={(date) => date.isAfter(dayjs(), 'day')}
             suffixIcon={<CalendarOutlined />}
             onClick={() => setDatePickerOpen(true)}
             onOpenChange={setDatePickerOpen}

src/app/(main)/withdraws/WithdrawReviewPage.tsx

@@ -570,6 +570,7 @@ export function WithdrawReviewPage({ mode = 'other' }: { mode?: WithdrawReviewMo
     },
     {
       title: '失败/拒绝原因',
+      key: 'fail_reason',
       dataIndex: 'fail_reason',
       ellipsis: true,
       render: (v: string | null) => v || <Text type="secondary">-</Text>,
@@ -647,6 +648,10 @@ export function WithdrawReviewPage({ mode = 'other' }: { mode?: WithdrawReviewMo
       },
     },
   ];
+  const visibleColumns =
+    activeStatus === 'pending' || activeStatus === 'success'
+      ? columns.filter((column) => column.key !== 'fail_reason')
+      : columns;
 
   const inviteeColumns: ColumnsType<InviteeDetail> = [
     { title: '手机号', dataIndex: 'phone', width: 130 },
@@ -945,7 +950,7 @@ export function WithdrawReviewPage({ mode = 'other' }: { mode?: WithdrawReviewMo
                 }
               : undefined
           }
-          columns={columns}
+          columns={visibleColumns}
           dataSource={items}
           loading={loading}
           pagination={{
@@ -989,12 +994,6 @@ export function WithdrawReviewPage({ mode = 'other' }: { mode?: WithdrawReviewMo
                 <Descriptions.Item label="金额">
                   <Text strong>{yuan(detail.order.amount_cents)}</Text>
                 </Descriptions.Item>
-                <Descriptions.Item label="提现类型">
-                  {detail.order.source === 'invite_cash' ? '邀请奖励提现' : '福利页提现'}
-                </Descriptions.Item>
-                <Descriptions.Item label="累计成功提现">
-                  {yuan(detail.cumulative_success_cents)}
-                </Descriptions.Item>
                 <Descriptions.Item label="提交时间">
                   {dt(detail.order.created_at)}
                 </Descriptions.Item>

src/lib/format.ts

@@ -37,6 +37,18 @@ export function percentile(values: readonly number[], q: number, round = true):
   return round ? Math.round(result) : result;
 }
 
+/**
+ * 离散计数分位数（nearest-rank）。
+ * 广告条数等不可拆分的计数不做线性插值，结果始终取自真实样本。
+ */
+export function nearestRankPercentile(values: readonly number[], q: number): number | null {
+  if (!values.length) return null;
+  const sorted = [...values].sort((a, b) => a - b);
+  const quantile = Math.min(1, Math.max(0, q));
+  const rank = Math.max(1, Math.ceil(quantile * sorted.length));
+  return sorted[rank - 1];
+}
+
 const hasTz = (v: string) => /(?:Z|[+-]\d{2}:?\d{2})$/i.test(v);
 
 /** 把 UTC 口径字符串解析为带时区的 dayjs(无时区后缀的补 Z 当 UTC)。 */