feat(qaops): 增加区域与全员提问排行及五十人分页

保留部门树并复用同一统计快照；区域内去重，跨区域和未归属单列，不改配置或主归属。按提问次数降序，保留零提问人员，每页50人。

验证：401项前端测试与类型检查通过，排序、区域去重、跨区域、零使用和123人三页边界红绿验证通过。
同镜像、正式网页和部署尚未验收。

CHANGELOG.md

@@ -76,6 +76,16 @@
 >   `0.1.12`），由 `scripts/version.py` 从 git **算出来**；开发交付的独立说明写入本文件“开发快照”章节，并打 `snapshot/vX.Y.Z` 注释标签 ⇒ 每次开发交付均可追溯，
 >   但"发布版本"仍然只能由人定（CI 不会自动升版本、不会打 tag）。
 
+## 开发快照 snapshot/v0.1.46 - 2026-10-21
+
+### Added
+
+- 区域统计新增“按部门／按区域／按人”分析切换；按部门保留原树形与直属人员。按区域查看已保存区域内人员，按人查看完整去重名册，均按提问次数降序并保留零提问人员，固定50人/页与页码选择，展示区域、所属部门、次数和最近提问时间。
+
+### Changed
+
+- 新分析复用同一累计／自然月／自然周快照，不额外创建模型或聚合作业；同区域多部门人员只列一次，跨区域及未归属者单列待核对，不自动选主区域。分析分页与切换只读，不改变原问答、区域映射、部门汇总、已保存周报及外部发送闸门。
+
 ## 开发快照 snapshot/v0.1.45 - 2026-10-21
 
 ### Added

web/src/QADepartmentStatistics.test.tsx

@@ -6,6 +6,8 @@ import { departmentStatisticsFixture } from './qaDepartmentStatistics.fixture'
 it('offers all, natural-month and natural-week scopes and never switches the selected-department action to a second mapping page', () => {
   const html = renderToStaticMarkup(<QARegionalStatistics />)
   for (const label of ['按累计统计', '按自然月统计', '按自然周统计', '绑定选中部门']) expect(html).toContain(label)
+  for (const label of ['按部门', '按区域', '按人']) expect(html).toContain('>' + label + '<')
+  expect(html).toContain('aria-label="分析维度"')
   expect(html).not.toContain('设置选中部门的区域')
   expect(html).not.toContain('返回部门统计')
 })

web/src/QADepartmentStatistics.tsx

@@ -10,6 +10,8 @@ import { currentQAWeekValue } from './qaWeeks'
 import { bindOrganizationDepartments } from './qaOrg'
 import type { RegionDefinition } from './qaOrg'
 import { QARegions } from './QARegions'
+import { PeopleAnalysisView } from './QAPeopleAnalysis'
+import { departmentTime } from './qaPeopleAnalysis'
 import './qaDepartmentStatistics.css'
 import { QAPeriodInput } from './QAPeriodInput'
 export interface DepartmentStatisticsViewProps {
@@ -21,16 +23,7 @@ export interface DepartmentStatisticsViewProps {
   onSelect?: (ids: string[]) => void
   onCollapse?: (id: string) => void
 }
-export const departmentTime = (value: string) =>
-  new Date(value).toLocaleString('zh-CN', {
-    timeZone: 'Asia/Shanghai',
-    year: 'numeric',
-    month: '2-digit',
-    day: '2-digit',
-    hour: '2-digit',
-    minute: '2-digit',
-    hour12: false,
-  })
+export { departmentTime } from './qaPeopleAnalysis'
 export function defaultStatisticsCollapsed(data: DepartmentStatisticsSnapshot): Set<string> {
   const direct = new Set(data.people.flatMap((p) => p.department_ids))
   return new Set(
@@ -267,6 +260,7 @@ export function DepartmentRegionBinding({
 }
 const currentWeekValue = currentQAWeekValue
 export function QARegionalStatistics({ onSaved }: { onSaved?: () => void } = {}) {
+  const [analysisMode, setAnalysisMode] = useState<'departments' | 'regions' | 'people'>('departments')
   const [period, setPeriod] = useState<'all' | 'month' | 'week'>('all'),
     [month, setMonth] = useState(currentMonth),
     [week, setWeek] = useState(currentWeekValue),
@@ -390,6 +384,19 @@ export function QARegionalStatistics({ onSaved }: { onSaved?: () => void } = {})
           </button>
         </div>
       </header>
+      <nav className="qa-analysis-switcher" aria-label="分析维度">
+        {(
+          [
+            ['departments', '按部门'],
+            ['regions', '按区域'],
+            ['people', '按人'],
+          ] as const
+        ).map(([mode, label]) => (
+          <button key={mode} type="button" aria-pressed={analysisMode === mode} onClick={() => setAnalysisMode(mode)}>
+            {label}
+          </button>
+        ))}
+      </nav>
       <aside
         className="qa-region-settings-panel"
         hidden={!settings}
@@ -441,36 +448,40 @@ export function QARegionalStatistics({ onSaved }: { onSaved?: () => void } = {})
               onChange={setWeek}
             />
           ) : null}
-          <label>
-            部门
-            <input
-              type="search"
-              aria-label="搜索统计部门"
-              value={search}
-              onChange={(e) => setSearch(e.target.value)}
-              placeholder="搜索部门或完整路径"
-            />
-          </label>
-          <label>
-            区域
-            <select aria-label="筛选统计区域" value={region} onChange={(e) => setRegion(e.target.value)}>
-              <option value="">全部区域</option>
-              {data?.regions.map((r) => (
-                <option key={r.id} value={r.id}>
-                  {r.name}
-                </option>
-              ))}
-            </select>
-          </label>
-          <DepartmentRegionBinding
-            regions={data?.regions ?? []}
-            selectedCount={selected.length}
-            disabled={busy || binding || settings || catalogDirty}
-            onBind={(id) => void bind(id)}
-          />
-          <button type="button" disabled={!selected.length} onClick={() => setSelected([])}>
-            取消勾选
-          </button>
+          {analysisMode === 'departments' ? (
+            <>
+              <label>
+                部门
+                <input
+                  type="search"
+                  aria-label="搜索统计部门"
+                  value={search}
+                  onChange={(e) => setSearch(e.target.value)}
+                  placeholder="搜索部门或完整路径"
+                />
+              </label>
+              <label>
+                区域
+                <select aria-label="筛选统计区域" value={region} onChange={(e) => setRegion(e.target.value)}>
+                  <option value="">全部区域</option>
+                  {data?.regions.map((r) => (
+                    <option key={r.id} value={r.id}>
+                      {r.name}
+                    </option>
+                  ))}
+                </select>
+              </label>
+              <DepartmentRegionBinding
+                regions={data?.regions ?? []}
+                selectedCount={selected.length}
+                disabled={busy || binding || settings || catalogDirty}
+                onBind={(id) => void bind(id)}
+              />
+              <button type="button" disabled={!selected.length} onClick={() => setSelected([])}>
+                取消勾选
+              </button>
+            </>
+          ) : null}
         </div>
         {catalogDirty ? <p className="qa-ops-muted">区域设置有未保存修改，请先保存或放弃后再绑定部门。</p> : null}
         {bindingError ? (
@@ -499,25 +510,42 @@ export function QARegionalStatistics({ onSaved }: { onSaved?: () => void } = {})
         ) : null}
         {data ? (
           <>
-            <DepartmentStatisticsView
-              data={data}
-              selected={selected}
-              collapsed={collapsed}
-              search={search}
-              region={region}
-              onSelect={setSelected}
-              onCollapse={(id) =>
-                setCollapsed((old) => {
-                  const next = new Set(old)
-                  if (next.has(id)) next.delete(id)
-                  else next.add(id)
-                  return next
-                })
-              }
-            />
-            <p className="qa-department-note">
-              部门汇总含全部子部门并按稳定身份去重；展开仅列本部门直属人员，兼属人数为当前通讯录直接关联的不同部门总数，不包含自动继承的上级。个人访问次数跨兼属部门展示同一数值，不重复累计到部门汇总；收起及区域筛选不改变统计。访问为已入总表的提问事件。
-            </p>
+            {analysisMode === 'departments' ? (
+              <DepartmentStatisticsView
+                data={data}
+                selected={selected}
+                collapsed={collapsed}
+                search={search}
+                region={region}
+                onSelect={setSelected}
+                onCollapse={(id) =>
+                  setCollapsed((old) => {
+                    const next = new Set(old)
+                    if (next.has(id)) next.delete(id)
+                    else next.add(id)
+                    return next
+                  })
+                }
+              />
+            ) : (
+              <PeopleAnalysisView
+                key={[
+                  analysisMode,
+                  data.period,
+                  data.month,
+                  data.week,
+                  data.organization.directory_id,
+                  data.organization.revision_id,
+                ].join(':')}
+                data={data}
+                mode={analysisMode}
+              />
+            )}
+            {analysisMode === 'departments' ? (
+              <p className="qa-department-note">
+                部门汇总含全部子部门并按稳定身份去重；展开仅列本部门直属人员，兼属人数为当前通讯录直接关联的不同部门总数，不包含自动继承的上级。个人访问次数跨兼属部门展示同一数值，不重复累计到部门汇总；收起及区域筛选不改变统计。访问为已入总表的提问事件。
+              </p>
+            ) : null}
             {data.unmapped_visits > 0 ? (
               <p className="qa-department-note">
                 另有 {data.unmapped_visits.toLocaleString('zh-CN')} 次提问未能归入当前通讯录部门，未虚构归属。

web/src/QAPeopleAnalysis.test.tsx

@@ -0,0 +1,41 @@
+import { it, expect } from 'vitest'
+import { renderToStaticMarkup } from 'react-dom/server'
+import { PeopleAnalysisView, PeopleRankingTable } from './QAPeopleAnalysis'
+import { peopleAnalysis } from './qaPeopleAnalysis'
+import { parseDepartmentStatistics } from './qaDepartmentStatistics'
+import { departmentStatisticsFixture } from './qaDepartmentStatistics.fixture'
+const fixture = () =>
+  parseDepartmentStatistics(structuredClone(departmentStatisticsFixture), { period: 'all' }).snapshot!
+it('renders at most fifty ranked people with actual question counts and no department write controls', () => {
+  const template = peopleAnalysis(fixture()).people[0]
+  const rows = Array.from({ length: 123 }, (_, i) => ({
+    ...template,
+    key: 'person-' + i.toString(16).padStart(64, '0'),
+    visits: 122 - i,
+  }))
+  const html = renderToStaticMarkup(<PeopleRankingTable people={rows} page={2} onPage={() => {}} label="全体人员" />)
+  expect(html.match(/data-ranking-person-key=/g)).toHaveLength(50)
+  expect(html).toContain('data-ranking="51"')
+  expect(html).toContain('data-ranking="100"')
+  expect(html).not.toContain('data-ranking="101"')
+  expect(html).toContain('50 人/页')
+  expect(html).toContain('上一页')
+  expect(html).toContain('下一页')
+  expect(html).not.toContain('checkbox')
+  expect(html).not.toContain('绑定选中部门')
+})
+it('region analysis lists the saved region members once and all-person analysis retains unassigned and zero-use people', () => {
+  const data = fixture()
+  const region = renderToStaticMarkup(<PeopleAnalysisView data={data} mode="regions" />)
+  expect(region).toContain('按区域查看人员')
+  expect(region.match(/data-ranking-person-key=/g)).toHaveLength(2)
+  expect(region).toContain('Fixture Alpha')
+  expect(region).not.toContain('Fixture Beta')
+  expect(region).toContain('跨区域待核对')
+  expect(region).toContain('未归属')
+  const all = renderToStaticMarkup(<PeopleAnalysisView data={data} mode="people" />)
+  expect(all.match(/data-ranking-person-key=/g)).toHaveLength(3)
+  expect(all).toContain('未命名人员')
+  expect(all).toContain('Fixture Beta')
+  expect(all.indexOf('Fixture Beta')).toBeLessThan(all.indexOf('Fixture Alpha'))
+})

web/src/QAPeopleAnalysis.tsx

@@ -0,0 +1,161 @@
+import { useMemo, useState } from 'react'
+import type { DepartmentStatisticsSnapshot } from './qaDepartmentStatistics'
+import { peopleAnalysis, peoplePage, PEOPLE_PAGE_SIZE, departmentTime } from './qaPeopleAnalysis'
+import type { PersonRankingRow } from './qaPeopleAnalysis'
+
+export function PeopleRankingTable({
+  people,
+  page,
+  onPage,
+  label,
+}: {
+  people: PersonRankingRow[]
+  page: number
+  onPage: (n: number) => void
+  label: string
+}) {
+  const window = peoplePage(people, page)
+  return (
+    <section
+      className="qa-people-ranking"
+      aria-label={label}
+      data-ranking-total={window.total}
+      data-ranking-page={window.page}
+    >
+      <div className="qa-department-table-scroll" tabIndex={0} aria-label="人员排行表格滚动区">
+        <table className="qa-department-table qa-people-ranking-table">
+          <colgroup>
+            <col style={{ width: '6%' }} />
+            <col style={{ width: '19%' }} />
+            <col style={{ width: '16%' }} />
+            <col style={{ width: '29%' }} />
+            <col style={{ width: '10%' }} />
+            <col style={{ width: '20%' }} />
+          </colgroup>
+          <thead>
+            <tr>
+              <th>排名</th>
+              <th>人员</th>
+              <th>区域</th>
+              <th>所属部门</th>
+              <th>提问次数</th>
+              <th>最近提问时间</th>
+            </tr>
+          </thead>
+          <tbody>
+            {window.items.map((person, i) => (
+              <tr
+                key={person.key}
+                data-ranking-person-key={person.key}
+                data-ranking={window.start + i + 1}
+                data-visits={person.visits}
+                data-person-region={person.group_key}
+              >
+                <td>{window.start + i + 1}</td>
+                <td className="qa-people-name-cell">
+                  <span>{person.name || '未命名人员'}</span>
+                  {person.department_ids.length > 1 ? (
+                    <small className="qa-people-multi">兼属 {person.department_ids.length} 部门</small>
+                  ) : null}
+                </td>
+                <td className="qa-people-region-cell">{person.region_label}</td>
+                <td className="qa-people-paths">
+                  {person.department_paths.length ? (
+                    <details>
+                      <summary title={person.department_paths.map((d) => d.path).join('；')}>
+                        {person.department_paths.length} 个直属部门
+                      </summary>
+                      <ul>
+                        {person.department_paths.map((d) => (
+                          <li key={d.id}>{d.path}</li>
+                        ))}
+                      </ul>
+                    </details>
+                  ) : (
+                    '未关联部门'
+                  )}
+                </td>
+                <td className="qa-people-question-count">{person.visits.toLocaleString('zh-CN')}</td>
+                <td>{person.last_asked_at ? departmentTime(person.last_asked_at) : '—'}</td>
+              </tr>
+            ))}
+          </tbody>
+        </table>
+        {!window.total ? <p className="qa-ops-empty">此范围暂无人员，未将其他区域人员混入。</p> : null}
+      </div>
+      <nav className="qa-people-pagination" aria-label="人员分页">
+        <span>
+          {PEOPLE_PAGE_SIZE} 人/页 · 共 {window.total.toLocaleString('zh-CN')} 人 · 显示{' '}
+          {window.total ? window.start + 1 : 0}—{window.end}
+        </span>
+        <div>
+          <button type="button" disabled={window.page === 1} onClick={() => onPage(window.page - 1)}>
+            上一页
+          </button>
+          <label>
+            第{' '}
+            <select aria-label="人员页码" value={window.page} onChange={(e) => onPage(Number(e.target.value))}>
+              {Array.from({ length: window.pages }, (_, i) => (
+                <option value={i + 1} key={i + 1}>
+                  {i + 1}
+                </option>
+              ))}
+            </select>{' '}
+            / {window.pages} 页
+          </label>
+          <button type="button" disabled={window.page === window.pages} onClick={() => onPage(window.page + 1)}>
+            下一页
+          </button>
+        </div>
+      </nav>
+    </section>
+  )
+}
+
+export function PeopleAnalysisView({ data, mode }: { data: DepartmentStatisticsSnapshot; mode: 'regions' | 'people' }) {
+  const analysis = useMemo(() => peopleAnalysis(data), [data]),
+    [selected, setSelected] = useState(''),
+    [page, setPage] = useState(1)
+  const group =
+    analysis.groups.find((g) => g.key === selected) ??
+    analysis.groups.find((g) => g.people.length) ??
+    analysis.groups[0]
+  const people = mode === 'people' ? analysis.people : group.people
+  return (
+    <section className="qa-people-analysis" data-analysis-mode={mode} data-generated-at={data.generated_at}>
+      <div className="qa-people-analysis-heading">
+        {mode === 'regions' ? (
+          <label>
+            按区域查看人员{' '}
+            <select
+              aria-label="人员分析区域"
+              value={group.key}
+              onChange={(e) => {
+                setSelected(e.target.value)
+                setPage(1)
+              }}
+            >
+              {analysis.groups.map((g) => (
+                <option key={g.key} value={g.key}>
+                  {g.name}（{g.people.length} 人）
+                </option>
+              ))}
+            </select>
+          </label>
+        ) : (
+          <h4>全体人员</h4>
+        )}
+        <span>按提问次数从高到低 · 同一人员只列一次 · 保留零提问人员</span>
+      </div>
+      <PeopleRankingTable
+        people={people}
+        page={page}
+        onPage={setPage}
+        label={mode === 'regions' ? '区域人员排行' : '全体人员排行'}
+      />
+      <p className="qa-department-note">
+        沿用当前已同步通讯录及已保存区域配置；同一区域多部门人员去重，跨区域人员单列“跨区域待核对”，未配置者列“未归属”，不擅自裁决主归属或生成绩效结论。
+      </p>
+    </section>
+  )
+}

web/src/qaDepartmentStatistics.css

@@ -1,3 +1,127 @@
+.qa-analysis-switcher {
+  display: inline-flex;
+  gap: 4px;
+  padding: 4px;
+  margin: 0 0 8px;
+  border: 1px solid #e5ebf2;
+  border-radius: 6px;
+  background: #f1f5f9;
+}
+.qa-analysis-switcher button {
+  border: 0;
+  background: transparent;
+  color: #64748b;
+  padding: 7px 18px;
+  border-radius: 4px;
+}
+.qa-analysis-switcher button[aria-pressed='true'] {
+  background: #fff;
+  color: #2563eb;
+  box-shadow: 0 1px 3px #33415514;
+  font-weight: 600;
+}
+.qa-analysis-switcher button:focus-visible {
+  outline: 2px solid #3b82f6;
+  outline-offset: 1px;
+}
+.qa-people-analysis {
+  min-width: 0;
+}
+.qa-people-analysis-heading {
+  display: flex;
+  gap: 12px;
+  flex-wrap: wrap;
+  justify-content: space-between;
+  align-items: center;
+  margin: 0 0 10px;
+}
+.qa-people-analysis-heading h4 {
+  margin: 0;
+  font-size: 15px;
+}
+.qa-people-analysis-heading label {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+  font-size: 13px;
+}
+.qa-people-analysis-heading select {
+  max-width: 100%;
+  min-height: 32px;
+}
+.qa-people-analysis-heading > span {
+  color: #718096;
+  font-size: 12px;
+}
+.qa-people-ranking-table {
+  min-width: 1000px;
+}
+.qa-people-ranking-table .qa-people-name-cell,
+.qa-people-ranking-table .qa-people-region-cell,
+.qa-people-ranking-table .qa-people-paths {
+  text-align: left;
+  white-space: normal;
+  overflow-wrap: anywhere;
+  line-height: 1.6;
+}
+.qa-people-multi {
+  display: inline-block;
+  color: #64748b;
+  border: 1px solid #cbd5e1;
+  border-radius: 4px;
+  padding: 0 5px;
+  margin-left: 6px;
+  font-size: 11px;
+  font-weight: 400;
+}
+.qa-people-paths summary {
+  cursor: pointer;
+  color: #536c88;
+}
+.qa-people-paths ul {
+  padding-left: 16px;
+  margin: 6px 0 0;
+}
+.qa-people-question-count {
+  font-weight: 600;
+}
+.qa-people-pagination {
+  display: flex;
+  justify-content: space-between;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 8px;
+  padding: 12px 0 0;
+  color: #64748b;
+  font-size: 12px;
+}
+.qa-people-pagination > div {
+  display: flex;
+  gap: 10px;
+  align-items: center;
+}
+.qa-people-pagination select {
+  min-height: 30px;
+}
+@media (max-width: 680px) {
+  .qa-people-analysis-heading {
+    align-items: flex-start;
+  }
+  .qa-people-analysis-heading label {
+    flex-wrap: wrap;
+  }
+  .qa-people-analysis-heading select {
+    max-width: 280px;
+  }
+  .qa-people-pagination > div {
+    width: 100%;
+    justify-content: space-between;
+  }
+  .qa-analysis-switcher button {
+    padding: 7px 15px;
+  }
+}
+
 .qa-regional-statistics {
   min-width: 0;
   color: #334155;

web/src/qaPeopleAnalysis.test.ts

@@ -0,0 +1,60 @@
+import { it, expect } from 'vitest'
+import { peopleAnalysis, peoplePage } from './qaPeopleAnalysis'
+import { parseDepartmentStatistics } from './qaDepartmentStatistics'
+import { departmentStatisticsFixture } from './qaDepartmentStatistics.fixture'
+const fixture = () =>
+  parseDepartmentStatistics(structuredClone(departmentStatisticsFixture), { period: 'all' }).snapshot!
+it('ranks every unique roster person by questions descending including zero use without mutating the snapshot', () => {
+  const data = fixture(),
+    before = JSON.stringify(data),
+    result = peopleAnalysis(data)
+  expect(result.people.map((p) => p.visits)).toEqual([3, 2, 0])
+  expect(new Set(result.people.map((p) => p.key)).size).toBe(3)
+  expect(result.people.find((p) => p.visits === 0)?.name).toBe('')
+  expect(JSON.stringify(data)).toBe(before)
+})
+it('groups same-region memberships once and separates cross-region and unassigned without choosing a primary', () => {
+  const data = fixture()
+  data.regions.push({ id: 'industrial', name: 'Industrial' }, { id: 'empty', name: 'Empty' })
+  data.rows.find((d) => d.id === 'root')!.region = 'industrial'
+  const result = peopleAnalysis(data),
+    groups = new Map(result.groups.map((g) => [g.key, g]))
+  expect(groups.get('region:edu')?.people.map((p) => p.visits)).toEqual([0])
+  expect(groups.get('region:industrial')?.people.map((p) => p.visits)).toEqual([3])
+  expect(groups.get('state:cross_region')?.people.map((p) => p.visits)).toEqual([2])
+  expect(groups.get('region:empty')?.people).toEqual([])
+  expect(result.people.find((p) => p.visits === 2)?.region_label).toContain('跨区域待核对')
+  expect(
+    result.groups
+      .flatMap((g) => g.people)
+      .map((p) => p.key)
+      .sort()
+  ).toEqual(data.people.map((p) => p.key).sort())
+  const initial = peopleAnalysis(fixture())
+  expect(initial.groups.find((g) => g.key === 'region:edu')?.people).toHaveLength(2)
+  expect(initial.groups.find((g) => g.key === 'state:unassigned')?.people).toHaveLength(1)
+})
+it('paginates all people at exactly fifty with no gaps, correct final page and deterministic ties', () => {
+  const template = peopleAnalysis(fixture()).people[0]
+  const data = Array.from({ length: 123 }, (_, i) => ({
+    ...template,
+    key: 'person-' + i.toString(16).padStart(64, '0'),
+    visits: 122 - i,
+  }))
+  const pages = [1, 2, 3].map((n) => peoplePage(data, n))
+  expect(pages.map((p) => p.items.length)).toEqual([50, 50, 23])
+  expect(pages.map((p) => p.start)).toEqual([0, 50, 100])
+  expect(pages.flatMap((p) => p.items.map((r) => r.key))).toEqual(data.map((r) => r.key))
+  expect(peoplePage(data, 999).page).toBe(3)
+  expect(peoplePage(data, -1).page).toBe(1)
+  expect(peoplePage(data, NaN).page).toBe(1)
+  expect(peoplePage([], 1)).toMatchObject({ items: [], total: 0, start: 0, end: 0, page: 1, pages: 1 })
+  const same = fixture()
+  same.people.forEach((p) => {
+    p.name = '同名'
+    p.visits = 1
+  })
+  const first = peopleAnalysis(same).people.map((p) => p.key)
+  same.people.reverse()
+  expect(peopleAnalysis(same).people.map((p) => p.key)).toEqual(first)
+})

web/src/qaPeopleAnalysis.ts

@@ -0,0 +1,78 @@
+import type { DepartmentPersonStatistic, DepartmentStatisticsSnapshot } from './qaDepartmentStatistics'
+export const departmentTime = (value: string) =>
+  new Date(value).toLocaleString('zh-CN', {
+    timeZone: 'Asia/Shanghai',
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+    hour: '2-digit',
+    minute: '2-digit',
+    hour12: false,
+  })
+export const PEOPLE_PAGE_SIZE = 50
+export type PersonRankingRow = DepartmentPersonStatistic & {
+  region_ids: string[]
+  region_state: 'matched' | 'cross_region' | 'unassigned'
+  group_key: string
+  region_label: string
+  department_paths: Array<{ id: string; path: string }>
+}
+export type PeopleAnalysisGroup = { key: string; name: string; people: PersonRankingRow[]; visits: number }
+export function peopleAnalysis(data: DepartmentStatisticsSnapshot): {
+  people: PersonRankingRow[]
+  groups: PeopleAnalysisGroup[]
+} {
+  const nodes = new Map(data.rows.map((d) => [d.id, d]))
+  const people: PersonRankingRow[] = data.people
+    .map((person) => ({
+      ...person,
+      department_ids: [...person.department_ids],
+      region_ids: [],
+      region_state: 'unassigned' as const,
+      group_key: 'state:unassigned',
+      region_label: '未归属',
+      department_paths: person.department_ids.map((id) => {
+        const names: string[] = []
+        let current = id
+        while (current) {
+          const d = nodes.get(current)!
+          names.unshift(d.name)
+          current = d.parent_id
+        }
+        return { id, path: names.join('/') }
+      }),
+    }))
+    .sort((a, b) => b.visits - a.visits || a.name.localeCompare(b.name, 'zh-CN') || a.key.localeCompare(b.key))
+  const labels = new Map(data.regions.map((r) => [r.id, r.name]))
+  const groups: PeopleAnalysisGroup[] = [
+    ...data.regions.map((r) => ({ key: 'region:' + r.id, name: r.name, people: [] as PersonRankingRow[], visits: 0 })),
+    { key: 'state:cross_region', name: '跨区域待核对', people: [], visits: 0 },
+    { key: 'state:unassigned', name: '未归属', people: [], visits: 0 },
+  ]
+  const byKey = new Map(groups.map((g) => [g.key, g]))
+  for (const person of people) {
+    person.region_ids = [...new Set(person.department_ids.map((id) => nodes.get(id)!.region).filter(Boolean))].sort()
+    person.region_state =
+      person.region_ids.length === 1 ? 'matched' : person.region_ids.length > 1 ? 'cross_region' : 'unassigned'
+    person.group_key =
+      person.region_state === 'matched' ? 'region:' + person.region_ids[0] : 'state:' + person.region_state
+    person.region_label =
+      person.region_state === 'matched'
+        ? labels.get(person.region_ids[0])!
+        : person.region_state === 'cross_region'
+          ? '跨区域待核对（' + person.region_ids.map((id) => labels.get(id)).join('、') + '）'
+          : '未归属'
+    const group = byKey.get(person.group_key)!
+    group.people.push(person)
+    group.visits += person.visits
+  }
+  return { people, groups }
+}
+export function peoplePage(people: PersonRankingRow[], requested: number) {
+  const total = people.length,
+    pages = Math.max(1, Math.ceil(total / PEOPLE_PAGE_SIZE))
+  const page = Math.max(1, Math.min(pages, Number.isFinite(requested) ? Math.trunc(requested) : 1))
+  const start = (page - 1) * PEOPLE_PAGE_SIZE,
+    end = Math.min(total, start + PEOPLE_PAGE_SIZE)
+  return { items: people.slice(start, end), page, pages, total, start, end }
+}