feat(任务模块): 任务归档 T-ARC-01~08 实现

- 数据: Project.autoArchive + Task.archived/archivedAt/archiveSource,
  迁移 20261026000000_task_archive (两索引)
- 领域: server/task-domain/archive.js —— hiddenAtOf 与保留口径精确同源,
  autoArchiveDue 到期判定, runAutoArchiveForProject (读时惰性) +
  runAutoArchiveSweep (每小时 cron 兜底)
- 接口: POST /tasks/:id/archive|unarchive (连带子任务, 幂等);
  GET /projects/:id/tasks/archived (keyword/kind/columnId/from/to 过滤,
  archivedAt+id 游标分页); 项目 PUT 收 autoArchive (枚举校验);
  主列表/子任务/项目 taskCount 全部排除归档
- 前端: ⋯ 菜单「归档」(确认含子任务条数); 项目栏「已归档」入口 →
  ArchivedTasks 弹层 (关键词/类型/列/归档时段过滤 + 加载更多 + 恢复/删除);
  项目管理「归档设置」四档 Picker

prisma/migrations/20261026000000_task_archive/migration.sql

@@ -0,0 +1,7 @@
+-- 任务归档 (T-ARC): 项目自动归档档位 + 任务归档三字段与查询索引
+ALTER TABLE `Project` ADD COLUMN `autoArchive` VARCHAR(8) NOT NULL DEFAULT 'never';
+ALTER TABLE `Task` ADD COLUMN `archived` BOOLEAN NOT NULL DEFAULT false;
+ALTER TABLE `Task` ADD COLUMN `archivedAt` DATETIME(3) NULL;
+ALTER TABLE `Task` ADD COLUMN `archiveSource` VARCHAR(8) NULL;
+ALTER TABLE `Task` ADD INDEX `idx_task_project_archived` (`projectId`, `archived`, `archivedAt`);
+ALTER TABLE `Task` ADD INDEX `idx_task_project_status_arch` (`projectId`, `status`, `archived`);

prisma/schema.prisma

@@ -396,6 +396,7 @@ model Project {
   notes      Json     @default("[]") // 项目信息块 [{ title, content }] (T-PJ-13)
   taskKinds  Json?    // 任务类型标签列表 (未配置时服务端回落默认四类)
   icon       String?  @db.Text // 项目图标 (data URL, 客户端裁剪为 96x96 JPEG)
+  autoArchive String  @default("never") @db.VarChar(8) // 自动归档档位: 3d/1w/1m/never (T-ARC-02)
   createdAt  DateTime @default(now())
   updatedAt  DateTime @updatedAt
 
@@ -461,6 +462,9 @@ model Task {
 
   extras      Json      @default("[]")
   sortOrder   Int       @default(0)
+  archived    Boolean   @default(false)
+  archivedAt  DateTime?
+  archiveSource String? @db.VarChar(8) // manual | auto (T-ARC)
   createdAt   DateTime  @default(now())
   updatedAt   DateTime  @updatedAt
 
@@ -471,6 +475,8 @@ model Task {
   @@index([projectId, status])
   @@index([parentId])
   @@index([projectId, doneAt])
+  @@index([projectId, archived, archivedAt])
+  @@index([projectId, status, archived])
 }
 
 model TaskMember {

server/cron.js

@@ -90,5 +90,21 @@ function scheduleOilHistory() {
   console.log('[cron] 已注册: 每天 06:10 浙江油价历史抓取')
 }
 
+// 每小时兜底: 任务自动归档扫描 (T-ARC-02; 项目加载时另有读时惰性执行)
+function scheduleAutoArchive() {
+  cron.schedule('30 * * * *', async () => {
+    try {
+      const { runAutoArchiveSweep } = await import('./task-domain/archive.js')
+      const n = await runAutoArchiveSweep()
+      if (n > 0) console.log('[cron] 自动归档:', n, '条')
+    } catch (e) {
+      console.error('[cron] 自动归档失败:', e.message)
+      await alertError('任务自动归档', e.message)
+    }
+  }, { timezone: 'Asia/Shanghai' })
+  console.log('[cron] 已注册: 每小时 30 分 任务自动归档扫描')
+}
+
 scheduleNews()
 scheduleOilHistory()
+scheduleAutoArchive()

server/routes/projects.js

@@ -41,6 +41,9 @@ export async function ensurePersonalProject(userId) {
 // 任务类型标签: 项目级自定义, 未配置时用默认四类
 export const DEFAULT_TASK_KINDS = ['需求', 'Bug', 'FEATURE', '优化']
 
+// 自动归档档位 (T-ARC-02)
+export const AUTO_ARCHIVE_OPTIONS = ['3d', '1w', '1m', 'never']
+
 export function normTaskKinds(v) {
   if (!Array.isArray(v)) return null
   const out = []
@@ -63,6 +66,7 @@ function projectSummary(p) {
     updatedAt: p.updatedAt,
     taskKinds: normTaskKinds(p.taskKinds) || DEFAULT_TASK_KINDS,
     icon: p.icon || null,
+    autoArchive: AUTO_ARCHIVE_OPTIONS.includes(p.autoArchive) ? p.autoArchive : 'never',
     memberCount: p._count?.members ?? undefined,
     taskCount: p._count?.tasks ?? undefined,
   }
@@ -77,7 +81,7 @@ router.get('/', async (req, res, next) => {
     await ensurePersonalProject(userId)
     const rows = await prisma.project.findMany({
       where: { members: { some: { userId } } },
-      include: { _count: { select: { members: true, tasks: true } } },
+      include: { _count: { select: { members: true, tasks: { where: { archived: false } } } } },
       orderBy: [{ archived: 'asc' }, { updatedAt: 'desc' }],
     })
     res.json({ items: rows.map(projectSummary) })
@@ -98,7 +102,7 @@ router.post('/', async (req, res, next) => {
     await createDefaultColumns(project.id)
     const full = await prisma.project.findUnique({
       where: { id: project.id },
-      include: { _count: { select: { members: true, tasks: true } } },
+      include: { _count: { select: { members: true, tasks: { where: { archived: false } } } } },
     })
     res.json({ item: projectSummary(full) })
   } catch (e) { next(e) }
@@ -135,7 +139,7 @@ router.put('/:id', async (req, res, next) => {
     const userId = req.user.sub
     const project = await loadProjectForUser(req.params.id, userId)
     if (!project) return res.status(404).json({ error: '项目不存在或无权限' })
-    const { name, archived, notes, taskKinds, icon } = req.body || {}
+    const { name, archived, notes, taskKinds, icon, autoArchive } = req.body || {}
     const data = {}
     if (name !== undefined) {
       const t = String(name).trim()
@@ -159,6 +163,11 @@ router.put('/:id', async (req, res, next) => {
     } else if (icon === null) {
       data.icon = null
     }
+    // 自动归档档位 (T-ARC-02)
+    if (autoArchive !== undefined) {
+      if (!AUTO_ARCHIVE_OPTIONS.includes(autoArchive)) return res.status(400).json({ error: '自动归档档位非法' })
+      data.autoArchive = autoArchive
+    }
     if (archived !== undefined) data.archived = !!archived
     // 项目信息块 (T-PJ-13): 任意多个 { title, content }, 整体替换
     if (notes !== undefined) {

server/routes/tasks.js

@@ -8,10 +8,13 @@ import {
 import { resolveTaskWrite } from '../task-domain/resolveStatus.js'
 import { filterVisible } from '../task-domain/retention.js'
 import { copyTask } from '../task-domain/copyTask.js'
+import { runAutoArchiveForProject } from '../task-domain/archive.js'
 
 const router = Router()
 router.use(authRequired)
 
+const DATE_RE = /^\d{4}-\d{2}-\d{2}$/
+
 const TASK_INCLUDE = {
   column: true,
   assignee: { select: { id: true, name: true } },
@@ -19,6 +22,7 @@ const TASK_INCLUDE = {
   members: { include: { user: { select: { id: true, name: true } } } },
   tags: true,
   children: {
+    where: { archived: false },
     include: {
       column: true,
       assignee: { select: { id: true, name: true } },
@@ -50,9 +54,12 @@ router.get('/projects/:id/tasks', async (req, res, next) => {
     const project = await loadProjectForUser(req.params.id, userId)
     if (!project) return res.status(404).json({ error: '项目不存在或无权限' })
 
+    // 读时惰性自动归档 (T-ARC-02): 保证刚到期的隐藏任务当场消失
+    await runAutoArchiveForProject(project.id)
+
     const columns = await loadColumns(project.id)
     const rows = await prisma.task.findMany({
-      where: { projectId: project.id, parentId: null },
+      where: { projectId: project.id, parentId: null, archived: false },
       include: TASK_INCLUDE,
       orderBy: [{ sortOrder: 'asc' }, { createdAt: 'asc' }],
     })
@@ -63,6 +70,82 @@ router.get('/projects/:id/tasks', async (req, res, next) => {
   } catch (e) { next(e) }
 })
 
+// ---------- 归档 (T-ARC) ----------
+
+// POST /api/tasks/:id/archive  手动归档: 连带全部子任务, 幂等
+router.post('/tasks/:id/archive', async (req, res, next) => {
+  try {
+    const userId = req.user.sub
+    const found = await loadTaskForUser(req.params.id, userId)
+    if (!found) return res.status(404).json({ error: '任务不存在或无权限' })
+    const { task } = found
+    const children = await prisma.task.findMany({ where: { parentId: task.id }, select: { id: true } })
+    const r = await prisma.task.updateMany({
+      where: { id: { in: [task.id, ...children.map((c) => c.id)] } },
+      data: { archived: true, archivedAt: new Date(), archiveSource: 'manual' },
+    })
+    res.json({ ok: true, count: r.count })
+  } catch (e) { next(e) }
+})
+
+// POST /api/tasks/:id/unarchive  恢复: 回原列, 状态不变, 连带子任务
+router.post('/tasks/:id/unarchive', async (req, res, next) => {
+  try {
+    const userId = req.user.sub
+    const found = await loadTaskForUser(req.params.id, userId)
+    if (!found) return res.status(404).json({ error: '任务不存在或无权限' })
+    const { task } = found
+    const children = await prisma.task.findMany({ where: { parentId: task.id }, select: { id: true } })
+    const r = await prisma.task.updateMany({
+      where: { id: { in: [task.id, ...children.map((c) => c.id)] } },
+      data: { archived: false, archivedAt: null, archiveSource: null },
+    })
+    res.json({ ok: true, count: r.count })
+  } catch (e) { next(e) }
+})
+
+// GET /api/projects/:id/tasks/archived  已归档查询: 过滤 + 游标分页 (T-ARC-04)
+router.get('/projects/:id/tasks/archived', async (req, res, next) => {
+  try {
+    const userId = req.user.sub
+    const project = await loadProjectForUser(req.params.id, userId)
+    if (!project) return res.status(404).json({ error: '项目不存在或无权限' })
+
+    const q = req.query || {}
+    const where = { projectId: project.id, archived: true, parentId: null }
+    if (q.keyword) where.title = { contains: String(q.keyword).trim() }
+    if (q.kind) where.kind = String(q.kind)
+    if (q.columnId && Number.isFinite(Number(q.columnId))) where.columnId = Number(q.columnId)
+    if (q.from && DATE_RE.test(q.from)) where.archivedAt = { ...(where.archivedAt || {}), gte: new Date(q.from + 'T00:00:00+08:00') }
+    if (q.to && DATE_RE.test(q.to)) where.archivedAt = { ...(where.archivedAt || {}), lte: new Date(q.to + 'T23:59:59.999+08:00') }
+
+    const limit = Math.min(100, Math.max(1, Number(q.limit) || 20))
+    if (q.cursor) {
+      const [ts, id] = String(q.cursor).split('|')
+      const t = new Date(ts)
+      if (Number.isNaN(t.getTime()) || !Number.isFinite(Number(id))) {
+        return res.status(400).json({ error: 'cursor 无效' })
+      }
+      where.OR = [
+        { archivedAt: { lt: t } },
+        { archivedAt: t, id: { lt: Number(id) } },
+      ]
+    }
+
+    const rows = await prisma.task.findMany({
+      where,
+      include: TASK_INCLUDE,
+      orderBy: [{ archivedAt: 'desc' }, { id: 'desc' }],
+      take: limit + 1,
+    })
+    const hasMore = rows.length > limit
+    const page = rows.slice(0, limit)
+    const last = page[page.length - 1]
+    const nextCursor = hasMore && last ? `${last.archivedAt.toISOString()}|${last.id}` : null
+    res.json({ items: page.map(shape), nextCursor })
+  } catch (e) { next(e) }
+})
+
 // POST /api/projects/:id/tasks  { title, description?, parentId?, assigneeId?, memberIds?, tags? }
 router.post('/projects/:id/tasks', async (req, res, next) => {
   try {

server/task-domain/archive.js

@@ -0,0 +1,112 @@
+// 任务归档领域逻辑 (T-ARC)
+//   自动归档判定: 倒计时起点 = 任务"被隐藏的时刻"(与 date.js isVisibleByRetention
+//   精确同口径推导): 完成日 + 保留窗口后的上海零点; 加上项目 autoArchive 档位即到期时刻。
+//   执行双保险: 项目任务加载时惰性执行 (runAutoArchiveForProject) + 每小时 cron 兜底。
+import { prisma } from '../db.js'
+import { toDateStr, addDays, startOfWeek, startOfMonth } from './date.js'
+
+export const AUTO_ARCHIVE_OPTIONS = ['3d', '1w', '1m', 'never']
+const DAY_MS = 24 * 3600 * 1000
+const SHANGHAI_OFFSET_MS = 8 * 3600 * 1000
+
+/** 上海日历日 "YYYY-MM-DD" 的零点时刻 (UTC 表示) */
+function shanghaiMidnight(dayStr) {
+  const [y, m, d] = dayStr.split('-').map(Number)
+  return new Date(Date.UTC(y, m - 1, d) - SHANGHAI_OFFSET_MS)
+}
+
+/** 上海日历日 + n 个月后的零点 (月末溢出由 Date 归一化) */
+function addMonths(dayStr, n) {
+  const [y, m, d] = dayStr.split('-').map(Number)
+  return new Date(Date.UTC(y, m - 1 + n, d) - SHANGHAI_OFFSET_MS)
+}
+
+/**
+ * 任务被隐藏的时刻: doneAt 所在完成日之后, 保留窗口结束的上海零点。
+ * 与 date.js isVisibleByRetention 的可见判定精确同口径:
+ *   never  → doneAt 即刻隐藏; today → 完成日次日零点; 3d → 完成日+3 零点;
+ *   week   → 完成周次下一周一零点; month → 次月 1 日零点; forever → 永不隐藏 (null)
+ */
+export function hiddenAtOf(doneAt, option) {
+  if (!doneAt) return null
+  const day = toDateStr(doneAt)
+  switch (option) {
+    case 'never': return new Date(doneAt)
+    case 'today': return shanghaiMidnight(addDays(day, 1))
+    case '3d': return shanghaiMidnight(addDays(day, 3))
+    case 'week': return shanghaiMidnight(addDays(startOfWeek(day), 7))
+    case 'month': return shanghaiMidnight(String(addDays(day, 32)).slice(0, 8) + '01')
+    default: return null // forever: 永不隐藏
+  }
+}
+
+/** 自动归档到期时刻: 隐藏时刻 + 档位; 'never' 或无法隐藏 → null */
+export function autoArchiveDue(autoArchive, doneAt, columnRetention) {
+  if (!autoArchive || autoArchive === 'never') return null
+  const hidden = hiddenAtOf(doneAt, columnRetention)
+  if (!hidden) return null
+  switch (autoArchive) {
+    case '3d': return new Date(hidden.getTime() + 3 * DAY_MS)
+    case '1w': return new Date(hidden.getTime() + 7 * DAY_MS)
+    case '1m': {
+      const d = new Date(hidden)
+      d.setUTCMonth(d.getUTCMonth() + 1)
+      return d
+    }
+    default: return null
+  }
+}
+
+/**
+ * 对单个项目执行一轮到期自动归档 (T-ARC-02)。
+ * 只处理 status=done / doneAt 非空 / 未归档 的任务; 幂等。
+ * @returns {number} 本次归档条数
+ */
+export async function runAutoArchiveForProject(projectId) {
+  const project = await prisma.project.findUnique({
+    where: { id: projectId },
+    select: { autoArchive: true },
+  })
+  if (!project || !AUTO_ARCHIVE_OPTIONS.includes(project.autoArchive) || project.autoArchive === 'never') return 0
+
+  const columns = await prisma.boardColumn.findMany({
+    where: { projectId },
+    select: { id: true, retention: true },
+  })
+  const retentionById = new Map(columns.map((c) => [c.id, c.retention || 'forever']))
+
+  const tasks = await prisma.task.findMany({
+    where: { projectId, archived: false, status: 'done', doneAt: { not: null } },
+    select: { id: true, doneAt: true, columnId: true },
+  })
+  const now = new Date()
+  const dueIds = []
+  for (const t of tasks) {
+    const due = autoArchiveDue(project.autoArchive, t.doneAt, retentionById.get(t.columnId))
+    if (due && due <= now) dueIds.push(t.id)
+  }
+  if (!dueIds.length) return 0
+
+  const r = await prisma.task.updateMany({
+    where: { id: { in: dueIds } },
+    data: { archived: true, archivedAt: now, archiveSource: 'auto' },
+  })
+  return r.count
+}
+
+/** 每小时 cron 兜底: 扫描所有启用了自动归档的项目 */
+export async function runAutoArchiveSweep() {
+  const projects = await prisma.project.findMany({
+    where: { autoArchive: { not: 'never' } },
+    select: { id: true },
+  })
+  let total = 0
+  for (const p of projects) {
+    try {
+      total += await runAutoArchiveForProject(p.id)
+    } catch (e) {
+      console.error('[archive] 项目自动归档失败:', p.id, e.message)
+    }
+  }
+  return total
+}

src/api/task.js

@@ -38,4 +38,7 @@ export const taskApi = {
   reorder: (projectId, ids) => api(`/projects/${projectId}/tasks/reorder`, { method: 'POST', body: { ids } }),
   remove: (id) => api(`/tasks/${id}`, { method: 'DELETE' }),
   copy: (id, projectId) => api(`/tasks/${id}/copy`, { method: 'POST', body: { projectId } }),
+  archive: (id) => api(`/tasks/${id}/archive`, { method: 'POST', body: {} }),
+  unarchive: (id) => api(`/tasks/${id}/unarchive`, { method: 'POST', body: {} }),
+  archivedList: (projectId, params) => api(`/projects/${projectId}/tasks/archived` + q(params)),
 }

src/pages/task/ArchivedTasks.jsx

@@ -0,0 +1,208 @@
+import { useCallback, useEffect, useRef, useState } from 'react'
+import { Button, DatePicker, Dialog, DotLoading, Input, Popup, Selector, Toast } from 'antd-mobile'
+import { taskApi } from '../../api/task.js'
+import { kindColor } from './kind.js'
+
+// 已归档任务查询 (T-ARC-04/05/06)
+//   过滤: 关键词(标题) / 任务类型 / 看板列 / 归档时间范围
+//   游标分页: 「加载更多」追加; 行内 恢复 / 彻底删除
+const LIMIT = 20
+
+export default function ArchivedTasks({ project, visible, onClose, onChanged }) {
+  const [items, setItems] = useState(null)
+  const [nextCursor, setNextCursor] = useState(null)
+  const [loading, setLoading] = useState(false)
+  const [filters, setFilters] = useState({ keyword: '', kind: '', columnId: '', from: '', to: '' })
+  const [fromVisible, setFromVisible] = useState(false)
+  const [toVisible, setToVisible] = useState(false)
+  const cursorRef = useRef('')
+
+  const columns = project?.columns || []
+  const kinds = project?.taskKinds || []
+
+  const buildParams = (f, cursor) => {
+    const p = { limit: LIMIT }
+    if (f.keyword.trim()) p.keyword = f.keyword.trim()
+    if (f.kind) p.kind = f.kind
+    if (f.columnId) p.columnId = f.columnId
+    if (f.from) p.from = f.from
+    if (f.to) p.to = f.to
+    if (cursor) p.cursor = cursor
+    return p
+  }
+
+  const load = useCallback(async (reset) => {
+    setLoading(true)
+    try {
+      const cursor = reset ? '' : cursorRef.current
+      const r = await taskApi.archivedList(project.id, buildParams(filters, cursor))
+      setItems((prev) => (reset || !prev ? r.items : [...prev, ...r.items]))
+      cursorRef.current = r.nextCursor || ''
+      setNextCursor(r.nextCursor || null)
+    } catch (e) {
+      Toast.show({ content: e.message || '加载失败' })
+    } finally {
+      setLoading(false)
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [project.id, filters])
+
+  useEffect(() => {
+    if (!visible) return
+    setItems(null)
+    cursorRef.current = ''
+    load(true)
+  }, [visible, load])
+
+  const setF = (patch) => setFilters((p) => ({ ...p, ...patch }))
+
+  async function doRestore(item) {
+    try {
+      await taskApi.unarchive(item.id)
+      Toast.show({ content: '已恢复' })
+      setItems((prev) => (prev || []).filter((x) => x.id !== item.id))
+      onChanged?.()
+      load(true)
+    } catch (e) {
+      Toast.show({ content: e.message || '恢复失败' })
+    }
+  }
+
+  async function doRemove(item) {
+    const subs = item.children?.length || 0
+    const ok = await Dialog.confirm({
+      content: subs ? `彻底删除「${item.title}」？将一并删除 ${subs} 条子任务，不可恢复。` : `彻底删除「${item.title}」？不可恢复。`,
+      confirmText: '删除',
+    })
+    if (!ok) return
+    try {
+      await taskApi.remove(item.id)
+      Toast.show({ content: '已删除' })
+      setItems((prev) => (prev || []).filter((x) => x.id !== item.id))
+      onChanged?.()
+    } catch (e) {
+      Toast.show({ content: e.message || '删除失败' })
+    }
+  }
+
+  const fmt = (iso) => (iso ? iso.slice(0, 10) : '')
+  const colName = (id) => columns.find((c) => c.id === id)?.name || ''
+
+  return (
+    <Popup
+      visible={visible}
+      onMaskClick={onClose}
+      position="right"
+      bodyStyle={{ width: '100vw', height: '100vh', overflowY: 'auto', background: 'var(--color-bg)' }}
+    >
+      <div className="cs-page" style={{ position: 'static', height: 'auto', minHeight: '100vh' }}>
+        <div className="navbar-sub">
+          <span className="back" onClick={onClose}>‹</span>
+          <span className="title">已归档任务</span>
+        </div>
+
+        <div style={{ padding: '12px 14px', display: 'flex', flexDirection: 'column', gap: 8 }}>
+          <Input
+            placeholder="搜索任务标题"
+            value={filters.keyword}
+            clearable
+            onEnter={() => load(true)}
+            onChange={(v) => setF({ keyword: v })}
+            onBlur={() => load(true)}
+          />
+          <div style={{ display: 'flex', gap: 8 }}>
+            <div style={{ flex: 1 }}>
+              <Selector
+                options={[{ label: '全部类型', value: '' }, ...kinds.map((k) => ({ label: k, value: k }))]}
+                value={[filters.kind]}
+                onSelect={(_, ext) => { setF({ kind: ext.items[0].value }); setTimeout(() => load(true), 0) }}
+              />
+            </div>
+          </div>
+          <Selector
+            options={[{ label: '全部看板列', value: '' }, ...columns.map((c) => ({ label: c.name, value: String(c.id) }))]}
+            value={[filters.columnId]}
+            onSelect={(_, ext) => { setF({ columnId: ext.items[0].value }); setTimeout(() => load(true), 0) }}
+          />
+          <div style={{ display: 'flex', gap: 8, alignItems: 'center', fontSize: 12, color: '#999' }}>
+            <span>归档</span>
+            <span className="mini-btn" style={{ padding: '3px 10px' }} onClick={() => setFromVisible(true)}>
+              {filters.from || '开始日期'}
+            </span>
+            <span>~</span>
+            <span className="mini-btn" style={{ padding: '3px 10px' }} onClick={() => setToVisible(true)}>
+              {filters.to || '结束日期'}
+            </span>
+            {(filters.from || filters.to) && (
+              <span className="link" onClick={() => { setF({ from: '', to: '' }); setTimeout(() => load(true), 0) }}>清除</span>
+            )}
+          </div>
+        </div>
+
+        <DatePicker
+          visible={fromVisible}
+          onClose={() => setFromVisible(false)}
+          precision="day"
+          onConfirm={(d) => {
+            const p = (n) => String(n).padStart(2, '0')
+            setF({ from: `${d.getFullYear()}-${p(d.getMonth() + 1)}-${p(d.getDate())}` })
+            setFromVisible(false)
+            setTimeout(() => load(true), 0)
+          }}
+        />
+        <DatePicker
+          visible={toVisible}
+          onClose={() => setToVisible(false)}
+          precision="day"
+          onConfirm={(d) => {
+            const p = (n) => String(n).padStart(2, '0')
+            setF({ to: `${d.getFullYear()}-${p(d.getMonth() + 1)}-${p(d.getDate())}` })
+            setToVisible(false)
+            setTimeout(() => load(true), 0)
+          }}
+        />
+
+        <div style={{ padding: '0 14px 24px', display: 'flex', flexDirection: 'column', gap: 7 }}>
+          {items === null && loading && <div style={{ textAlign: 'center', padding: 30 }}><DotLoading /> 加载中...</div>}
+          {items !== null && items.length === 0 && !loading && (
+            <div style={{ textAlign: 'center', color: '#b8bcc4', padding: 40 }}>没有符合条件的归档任务</div>
+          )}
+          {(items || []).map((t) => (
+            <div
+              key={t.id}
+              style={{
+                background: '#fff', borderRadius: 9, padding: '10px 12px', display: 'flex', gap: 10, alignItems: 'flex-start',
+                boxShadow: '0 1px 2px rgba(0,0,0,.04)',
+              }}
+            >
+              <div style={{ flex: 1, minWidth: 0 }}>
+                <div style={{ fontSize: 13.5, fontWeight: 600, wordBreak: 'break-word' }}>{t.title}</div>
+                <div style={{ fontSize: 10.5, color: '#999', marginTop: 4, display: 'flex', gap: 6, alignItems: 'center', flexWrap: 'wrap' }}>
+                  {t.kind && <span className="kind-tag" style={{ background: kindColor(t.kind) }}>{t.kind}</span>}
+                  <span>{colName(t.columnId)}</span>
+                  <span>归档于 {fmt(t.archivedAt)}</span>
+                </div>
+              </div>
+              <div style={{ display: 'flex', flexDirection: 'column', gap: 5, flexShrink: 0 }}>
+                <Button size="mini" color="primary" fill="outline" onClick={() => doRestore(t)}>恢复</Button>
+                <Button size="mini" color="danger" fill="none" onClick={() => doRemove(t)}>删除</Button>
+              </div>
+            </div>
+          ))}
+          {nextCursor && (
+            <Button
+              block
+              fill="outline"
+              size="small"
+              loading={loading}
+              onClick={() => load(false)}
+              style={{ marginTop: 4 }}
+            >
+              加载更多
+            </Button>
+          )}
+        </div>
+      </div>
+    </Popup>
+  )
+}

src/pages/task/ProjectManage.jsx

@@ -1,5 +1,5 @@
 import { useRef, useState } from 'react'
-import { Dialog, Input, Popup, Toast } from 'antd-mobile'
+import { Dialog, Input, Picker, Popup, Toast } from 'antd-mobile'
 import { projectApi } from '../../api/task.js'
 import { useAuth } from '../../auth/AuthContext.jsx'
 import useKeyboardInset from '../../hooks/useKeyboardInset.js'
@@ -24,6 +24,15 @@ export default function ProjectManage({ project, onClose, onChanged, onExited })
   const [newKind, setNewKind] = useState('')
   // 项目图标更换: 隐藏 file input
   const iconInputRef = useRef(null)
+  // 自动归档档位 (T-ARC-02)
+  const AUTO_ARCHIVE = [
+    { label: '3 天后', value: '3d' },
+    { label: '一周后', value: '1w' },
+    { label: '一月后', value: '1m' },
+    { label: '永不', value: 'never' },
+  ]
+  const AUTO_ARCHIVE_LABEL = Object.fromEntries(AUTO_ARCHIVE.map((o) => [o.value, o.label]))
+  const [archivePick, setArchivePick] = useState(false)
 
   const members = project.members || []
   const notes = Array.isArray(project.notes) ? project.notes : []
@@ -238,6 +247,14 @@ export default function ProjectManage({ project, onClose, onChanged, onExited })
           <span className="link">列设置 ›</span>
         </div>
 
+        <div className="section-h" style={{ margin: '14px 14px 8px' }}>归档设置</div>
+        <div className="set-row" style={{ padding: '12px 14px' }} onClick={() => setArchivePick(true)}>
+          <span className="pn" style={{ flex: 1, fontSize: 13.5 }}>隐藏的任务自动归档</span>
+          <span style={{ fontSize: 12.5, color: '#999' }}>
+            {AUTO_ARCHIVE_LABEL[project.autoArchive] || '永不'} ›
+          </span>
+        </div>
+
         <div className="section-h" style={{ margin: '14px 14px 8px' }}>任务类型</div>
         <div className="set-row" style={{ padding: '12px 14px' }} onClick={() => { setKinds(project.taskKinds || DEFAULT_KINDS); setNewKind(''); setKindEdit(true) }}>
           <div className="kind-chip-row" style={{ flex: 1 }}>
@@ -328,6 +345,24 @@ export default function ProjectManage({ project, onClose, onChanged, onExited })
         onClose={() => setRenaming(false)}
       />
 
+      {/* 自动归档档位选择 (T-ARC-02) */}
+      <Picker
+        visible={archivePick}
+        onClose={() => setArchivePick(false)}
+        columns={[AUTO_ARCHIVE]}
+        value={[project.autoArchive || 'never']}
+        onConfirm={async (v) => {
+          setArchivePick(false)
+          try {
+            await projectApi.update(project.id, { autoArchive: v[0] })
+            Toast.show({ content: '已保存' })
+            onChanged?.()
+          } catch (e) {
+            Toast.show({ content: e.message })
+          }
+        }}
+      />
+
       {/* 任务类型编辑: chips 删除 + 输入新增 */}
       <Popup
         visible={kindEdit}

src/pages/task/ProjectView.jsx

@@ -9,6 +9,7 @@ import BoardView from './BoardView.jsx'
 import TaskDetail from './TaskDetail.jsx'
 import ProjectManage from './ProjectManage.jsx'
 import CopyTaskPopup from '../../components/task/CopyTaskPopup.jsx'
+import ArchivedTasks from './ArchivedTasks.jsx'
 
 // 项目视图容器: 列表 / 看板 切换 + 数据装载 + 乐观更新
 // 嵌在任务首屏下部 (T-VW-09); 头部仅保留「项目管理」与「+ 新增」(T-PJ-11)
@@ -23,6 +24,7 @@ export default function ProjectView({ projectId, onProjectChanged, onProjectExit
   const [adding, setAdding] = useState(false)
   const [tick, setTick] = useState(0) // 保留窗口重算触发
   const [copyTask, setCopyTask] = useState(null) // ⋯菜单触发的跨项目拷贝
+  const [archivedOpen, setArchivedOpen] = useState(false) // 已归档任务查询
 
   const load = useCallback(() => {
     setErr('')
@@ -169,6 +171,7 @@ export default function ProjectView({ projectId, onProjectChanged, onProjectExit
     const handler = ActionSheet.show({
       actions: [
         { text: '编辑', key: 'edit' },
+        { text: '归档', key: 'archive' },
         { text: '拷贝到其他项目', key: 'copy' },
         { text: '删除', key: 'delete', bold: true, danger: true },
       ],
@@ -176,6 +179,21 @@ export default function ProjectView({ projectId, onProjectChanged, onProjectExit
       onAction: async (item) => {
         handler.close?.()
         if (item.key === 'edit') setOpenTask(task)
+        else if (item.key === 'archive') {
+          const subs = task.children?.length || 0
+          const ok = await Dialog.confirm({
+            content: subs ? `归档「${task.title}」？将连带归档 ${subs} 条子任务。` : `归档「${task.title}」？`,
+            confirmText: '归档',
+          })
+          if (!ok) return
+          try {
+            await taskApi.archive(task.id)
+            Toast.show({ content: '已归档' })
+            load()
+          } catch (e) {
+            Toast.show({ content: e.message })
+          }
+        }
         else if (item.key === 'copy') setCopyTask(task)
         else if (item.key === 'delete') {
           const kids = task.children?.length || 0
@@ -225,6 +243,7 @@ export default function ProjectView({ projectId, onProjectChanged, onProjectExit
       <div className="navbar-sub task-projbar">
         <span className="title">{project.name}</span>
         <div className="right">
+          <span className="mini-btn" onClick={() => setArchivedOpen(true)}>已归档</span>
           <span className="mini-btn" onClick={() => setShowManage(true)}>项目管理</span>
           <span className="mini-btn solid" onClick={() => setAdding((v) => !v)}>+ 新增</span>
         </div>
@@ -301,6 +320,15 @@ export default function ProjectView({ projectId, onProjectChanged, onProjectExit
         />
       )}
 
+      {archivedOpen && (
+        <ArchivedTasks
+          project={project}
+          visible={archivedOpen}
+          onClose={() => setArchivedOpen(false)}
+          onChanged={load}
+        />
+      )}
+
       {showManage && (
         <ProjectManage
           project={project}