diff --git a/apps/server/src/modules/data/data-keys.ts b/apps/server/src/modules/data/data-keys.ts
index b9d8f8a..afdd4e4 100644
--- a/apps/server/src/modules/data/data-keys.ts
+++ b/apps/server/src/modules/data/data-keys.ts
@@ -8,6 +8,7 @@ export const APP_DATA_KEYS = [
   'members',
   'task-categories',
   'task-worklogs',
+  'work-activities',
   'overtime',
 ] as const;
 
diff --git a/apps/server/src/modules/data/data.service.spec.ts b/apps/server/src/modules/data/data.service.spec.ts
index ca1d56a..ec7eb1f 100644
--- a/apps/server/src/modules/data/data.service.spec.ts
+++ b/apps/server/src/modules/data/data.service.spec.ts
@@ -58,6 +58,10 @@ describe('DataService', () => {
       key: 'task-worklogs',
       value,
     });
+    await expect(service.put('work-activities', value)).resolves.toEqual({
+      key: 'work-activities',
+      value,
+    });
     await expect(service.put('overtime', { records: [], reasons: [] })).resolves.toEqual({
       key: 'overtime',
       value,
diff --git a/apps/web/app/versions/[id]/page.tsx b/apps/web/app/versions/[id]/page.tsx
index f1a294d..4eb57fb 100644
--- a/apps/web/app/versions/[id]/page.tsx
+++ b/apps/web/app/versions/[id]/page.tsx
@@ -2,7 +2,7 @@
 
 import { useEffect, useMemo, useState } from 'react';
 import { useParams, useRouter } from 'next/navigation';
-import { Calendar, Check, ChevronLeft, Clock, FileText, Link2, Search, Settings, UserPlus, X } from 'lucide-react';
+import { AlertTriangle, Calendar, Check, ChevronLeft, Clock, FileText, Link2, Search, Settings, Sparkles, UserPlus, X } from 'lucide-react';
 import { useProductStore } from '@/stores/useProductStore';
 import { useRequirementStore } from '@/stores/useRequirementStore';
 import { useOvertimeStore } from '@/stores/useOvertimeStore';
@@ -23,6 +23,7 @@ import { useTestCaseStore } from '@/stores/useTestCaseStore';
 import { useBugStore } from '@/stores/useBugStore';
 import { useAuthStore } from '@/stores/useAuthStore';
 import { useMemberStore } from '@/stores/useMemberStore';
+import { useTaskCategoryStore } from '@/stores/useTaskCategoryStore';
 import { calcGroupProgress as calcDevTaskProgress } from '@/lib/dev-task';
 import { hasPermission } from '@/lib/permissions';
 import { calcActualElapsedHours, formatActualDuration } from '@/lib/work-hours';
@@ -30,6 +31,7 @@ import { formatDateTime } from '@/lib/format';
 import { getProjectAdoptedRequirementCandidates } from '@/lib/requirement-selector';
 import { calcBugSeverityRanking, calcPersonalEffortRanking, calcStageEffortMetrics, calcVersionOverviewEffortTotals } from '@/lib/version-overview';
 import { addVersionMembers, DEFAULT_VERSION_MEMBER_ROLE, filterVersionMemberCandidates } from '@/lib/version-members';
+import { addRecommendedVersionMembers, getDefaultRecommendedMemberNames, recommendVersionMembers, type MemberRecommendationGroup, type RecommendableRole } from '@/lib/member-recommendation';
 
 function formatOverviewDateTime(value?: string | null): string {
   if (!value) return '-';
@@ -43,6 +45,18 @@ const BUG_SEVERITY_SEGMENTS = [
   { key: 'trivial', label: '轻微', color: 'bg-zinc-400' },
 ] as const;
 
+const RECOMMENDATION_ROLE_LABEL: Record<RecommendableRole, string> = {
+  frontend: '前端',
+  backend: '后端',
+  testing: '测试',
+};
+
+const RECOMMENDATION_CONFIDENCE_LABEL = {
+  high: '高置信',
+  medium: '中置信',
+  low: '低置信',
+} as const;
+
 const TABS = [
   { key: 'overview', label: '概览', permission: null as string | null },
   { key: 'requirements', label: '关联需求', permission: 'version.req:view' },
@@ -66,7 +80,8 @@ export default function VersionDetailPage() {
   const { testCases, fetchTestCases, deleteTestCase } = useTestCaseStore();
   const { bugs, fetchBugs, deleteBug } = useBugStore();
   const user = useAuthStore((s) => s.user);
-  const { departments, members: allMembers, roles } = useMemberStore();
+  const { departments, members: allMembers, roles, fetchMembers } = useMemberStore();
+  const { categories: taskCategories, fetchCategories } = useTaskCategoryStore();
   const currentRole = useMemo(() => roles.find((r) => r.id === user?.roleId), [roles, user?.roleId]);
   const memberCandidates = useMemo(
     () => allMembers.map((member) => ({
@@ -87,6 +102,8 @@ export default function VersionDetailPage() {
     }
   }, [visibleTabs, activeTab]);
   const [showMemberModal, setShowMemberModal] = useState(false);
+  const [showRecommendModal, setShowRecommendModal] = useState(false);
+  const [recommendationDataReady, setRecommendationDataReady] = useState(false);
 
   useEffect(() => { fetchOverview(); }, [fetchOverview]);
   useEffect(() => { fetchRequirements(); }, [fetchRequirements]);
@@ -95,6 +112,14 @@ export default function VersionDetailPage() {
   useEffect(() => { fetchDevTasks(); }, [fetchDevTasks]);
   useEffect(() => { fetchTestCases(); }, [fetchTestCases]);
   useEffect(() => { fetchBugs(); }, [fetchBugs]);
+  useEffect(() => {
+    let active = true;
+    setRecommendationDataReady(false);
+    Promise.all([Promise.resolve(fetchMembers()), Promise.resolve(fetchCategories())]).finally(() => {
+      if (active) setRecommendationDataReady(true);
+    });
+    return () => { active = false; };
+  }, [fetchMembers, fetchCategories]);
 
   const version = useMemo(() => getVersionDetail(overview, versionId), [overview, versionId]);
 
@@ -144,6 +169,36 @@ export default function VersionDetailPage() {
   const healthScore = calcHealthScore(version.status, version.startDate, version.expectedReleaseDate, version.progress);
   const healthLevel = getHealthLevel(healthScore);
   const riskTags = calcRiskTags(version.status, version.startDate, version.expectedReleaseDate, version.progress, version.currentStage, version.members);
+  const recommendationVersionReqs = requirements.filter((requirement) => requirement.versionId === version.id);
+  const recommendationVersionReqIds = new Set(recommendationVersionReqs.map((requirement) => requirement.id));
+  const recommendationVersionDevTasks = devTasks.filter((task) => recommendationVersionReqIds.has(task.requirementId));
+  const recommendationVersionTestCases = testCases.filter((testCase) => testCase.versionId === version.id);
+  const currentSystemParticipation = new Map<string, number>();
+  overview.forEach((product) => {
+    product.versions.forEach((item) => {
+      const uniqueNames = new Set((item.members ?? []).map((member) => member.name));
+      uniqueNames.forEach((name) => currentSystemParticipation.set(name, (currentSystemParticipation.get(name) ?? 0) + 1));
+    });
+  });
+  const memberRecommendationGroups = recommendVersionMembers({
+    candidates: memberCandidates,
+    currentMembers: version.members ?? [],
+    devTasks,
+    testCases,
+    bugs,
+    overtimeRecords: records,
+    versionDeadline: version.expectedReleaseDate,
+    scopeRequirements: recommendationVersionReqs,
+    scopeDevTasks: recommendationVersionDevTasks,
+    scopeTestCases: recommendationVersionTestCases,
+    taskCategories,
+    historicalStats: memberCandidates.flatMap((member) => {
+      const projectParticipationCount = currentSystemParticipation.get(member.name);
+      return typeof projectParticipationCount === 'number'
+        ? [{ name: member.name, projectParticipationCount }]
+        : [];
+    }),
+  });
 
   const renderActions = () => {
     const buttons: { label: string; action: () => void; danger?: boolean }[] = [];
@@ -455,11 +510,20 @@ export default function VersionDetailPage() {
                     })()}
                   <div className="grid grid-cols-1 gap-4 lg:grid-cols-2">
                     <div className="rounded-xl border border-[var(--line)] bg-[var(--bg-card)] p-4">
-                      <div className="flex items-center justify-between mb-2">
+                      <div className="flex items-center justify-between gap-3 mb-2">
                         <div className="text-[11px] text-[var(--ink-muted)] font-medium">参与人员</div>
-                        <button onClick={() => setShowMemberModal(true)} className="flex items-center gap-1 text-[11px] text-[var(--accent)] hover:underline">
-                          <Settings className="h-3 w-3" />设置
-                        </button>
+                        <div className="flex items-center gap-2">
+                          <button
+                            onClick={() => setShowRecommendModal(true)}
+                            disabled={!recommendationDataReady}
+                            className="flex items-center gap-1 text-[11px] font-medium text-violet-600 hover:underline disabled:cursor-not-allowed disabled:text-[var(--ink-muted)] disabled:no-underline"
+                          >
+                            <Sparkles className="h-3 w-3" />{recommendationDataReady ? 'AI推荐' : '加载中'}
+                          </button>
+                          <button onClick={() => setShowMemberModal(true)} className="flex items-center gap-1 text-[11px] text-[var(--accent)] hover:underline">
+                            <Settings className="h-3 w-3" />设置
+                          </button>
+                        </div>
                       </div>
                       {(() => {
                         const membersList = version.members ?? [];
@@ -884,6 +948,20 @@ export default function VersionDetailPage() {
         )}
       </div>
 
+      {showRecommendModal && (
+        <MemberRecommendationModal
+          groups={memberRecommendationGroups}
+          members={version.members ?? []}
+          onAdd={(selectedNames) => {
+            const recommendations = memberRecommendationGroups.flatMap((group) => group.items);
+            const newMembers = addRecommendedVersionMembers(version.members ?? [], selectedNames, recommendations);
+            updateVersion(version.productId, version.id, { members: newMembers });
+            setShowRecommendModal(false);
+          }}
+          onClose={() => setShowRecommendModal(false)}
+        />
+      )}
+
       {/* 参与人员设置弹窗 */}
       {showMemberModal && (
         <MemberSettingModal
@@ -922,6 +1000,183 @@ function OverviewMetric({ label, value, icon, sub, tone }: {
   );
 }
 
+function formatRecommendationHours(hours: number): string {
+  if (hours <= 0) return '0h';
+  return `${Math.round(hours * 10) / 10}h`;
+}
+
+function formatAvailableDays(days: number): string {
+  if (days <= 0) return '今天';
+  return `约${days}天`;
+}
+
+function getRecommendationScoreClass(score: number): string {
+  if (score >= 80) return 'bg-emerald-50 text-emerald-700 border-emerald-100';
+  if (score >= 65) return 'bg-blue-50 text-blue-700 border-blue-100';
+  if (score >= 50) return 'bg-amber-50 text-amber-700 border-amber-100';
+  return 'bg-red-50 text-red-700 border-red-100';
+}
+
+function getRecommendationBarClass(score: number): string {
+  if (score >= 80) return 'bg-emerald-500';
+  if (score >= 65) return 'bg-blue-500';
+  if (score >= 50) return 'bg-amber-500';
+  return 'bg-red-500';
+}
+
+function getInitialRecommendationSelection(groups: MemberRecommendationGroup[]): Set<string> {
+  return new Set(getDefaultRecommendedMemberNames(groups));
+}
+
+function MemberRecommendationModal({ groups, members, onAdd, onClose }: {
+  groups: MemberRecommendationGroup[];
+  members: { role: Role; name: string }[];
+  onAdd: (selectedNames: string[]) => void;
+  onClose: () => void;
+}) {
+  const allItems = groups.flatMap((group) => group.items);
+  const [selectedNames, setSelectedNames] = useState<Set<string>>(() => getInitialRecommendationSelection(groups));
+  const hasHistoricalSignal = allItems.some((item) => item.confidence === 'high');
+
+  const toggleName = (name: string) => {
+    setSelectedNames((prev) => {
+      const next = new Set(prev);
+      if (next.has(name)) next.delete(name);
+      else next.add(name);
+      return next;
+    });
+  };
+
+  const handleAdd = () => {
+    if (selectedNames.size === 0) return;
+    onAdd(Array.from(selectedNames));
+  };
+
+  return (
+    <div className="fixed inset-0 z-[60] flex items-center justify-center bg-black/40" onClick={onClose}>
+      <div className="flex max-h-[calc(100vh-48px)] w-[min(860px,calc(100vw-32px))] flex-col overflow-hidden rounded-2xl border border-[var(--line)] bg-[var(--bg-card)] shadow-2xl" onClick={(e) => e.stopPropagation()}>
+        <div className="flex items-start justify-between gap-4 border-b border-[var(--line)] px-5 py-4">
+          <div className="min-w-0">
+            <div className="flex flex-wrap items-center gap-2">
+              <h3 className="text-[15px] font-semibold text-[var(--ink)]">AI推荐参与人员</h3>
+              {!hasHistoricalSignal && allItems.length > 0 && (
+                <span className="rounded-full border border-amber-100 bg-amber-50 px-2 py-0.5 text-[10px] font-medium text-amber-700">历史数据待导入</span>
+              )}
+            </div>
+            <p className="mt-1 text-[11px] text-[var(--ink-muted)]">
+              当前 {members.length} 人已加入，推荐 {allItems.length} 人，已选 {selectedNames.size} 人
+            </p>
+          </div>
+          <button onClick={onClose} className="rounded-md p-1.5 text-[var(--ink-muted)] hover:bg-[var(--bg-subtle)] hover:text-[var(--ink)]"><X className="h-4 w-4" /></button>
+        </div>
+
+        <div className="min-h-0 flex-1 overflow-y-auto px-5 py-4">
+          {allItems.length === 0 ? (
+            <div className="flex min-h-[260px] flex-col items-center justify-center rounded-xl border border-dashed border-[var(--line)] bg-[var(--bg)] text-center">
+              <Sparkles className="mb-3 h-5 w-5 text-[var(--ink-muted)]" />
+              <div className="text-[13px] font-medium text-[var(--ink)]">暂无可推荐人员</div>
+              <div className="mt-1 text-[11px] text-[var(--ink-muted)]">当前推荐缺口已满足，或暂无符合前端、后端、测试部门且未加入版本的候选人。</div>
+            </div>
+          ) : (
+            <div className="space-y-4">
+              {groups.map((group) => (
+                <section key={group.role}>
+                  <div className="mb-2 flex items-center justify-between">
+                    <div className="flex items-center gap-2">
+                      <span className="text-[12px] font-semibold text-[var(--ink)]">{RECOMMENDATION_ROLE_LABEL[group.role]}</span>
+                      <span className="rounded-full bg-[var(--bg-subtle)] px-2 py-0.5 text-[10px] text-[var(--ink-muted)]">
+                        建议 {group.requiredCount} / 已有 {group.currentCount} / 缺 {group.missingCount}
+                      </span>
+                    </div>
+                    <span className="text-[10px] text-[var(--ink-muted)]">范围 {formatRecommendationHours(group.scopeHours)}</span>
+                  </div>
+                  <div className="space-y-2">
+                    {group.items.map((item) => {
+                      const selected = selectedNames.has(item.name);
+                      const workloadCount = item.metrics.activeTaskCount + item.metrics.activeBugCount;
+                      const stats = [
+                        { label: '剩余', value: formatRecommendationHours(item.metrics.remainingHours) },
+                        { label: '可接入', value: formatAvailableDays(item.metrics.availableInDays) },
+                        { label: '事项', value: `${workloadCount}项` },
+                        { label: '加班', value: formatRecommendationHours(item.metrics.recentOvertimeHours) },
+                      ];
+
+                      return (
+                        <button
+                          key={item.name}
+                          type="button"
+                          onClick={() => toggleName(item.name)}
+                          className={`w-full overflow-hidden rounded-xl border text-left transition-colors ${selected ? 'border-violet-300 bg-violet-50/60' : 'border-[var(--line)] bg-[var(--bg)] hover:border-violet-200 hover:bg-[var(--bg-subtle)]'}`}
+                        >
+                          <div className={`h-1 ${getRecommendationBarClass(item.score)}`} style={{ width: `${item.score}%` }} />
+                          <div className="flex gap-3 px-3 py-3">
+                            <span className={`mt-0.5 flex h-4 w-4 shrink-0 items-center justify-center rounded border ${selected ? 'border-violet-600 bg-violet-600 text-white' : 'border-[var(--line)] text-transparent'}`}>
+                              <Check className="h-3 w-3" />
+                            </span>
+                            <div className="min-w-0 flex-1">
+                              <div className="flex flex-wrap items-center gap-2">
+                                <span className="truncate text-[13px] font-semibold text-[var(--ink)]">{item.name}</span>
+                                <span className={`rounded-full border px-2 py-0.5 text-[10px] font-semibold tabular-nums ${getRecommendationScoreClass(item.score)}`}>{item.score}分</span>
+                                <span className="rounded-full bg-[var(--bg-card)] px-2 py-0.5 text-[10px] text-[var(--ink-muted)]">{RECOMMENDATION_CONFIDENCE_LABEL[item.confidence]}</span>
+                              </div>
+                              <div className="mt-2 grid grid-cols-2 gap-2 sm:grid-cols-4">
+                                {stats.map((stat) => (
+                                  <span key={stat.label} className="rounded-lg bg-[var(--bg-card)] px-2 py-1">
+                                    <span className="block text-[10px] text-[var(--ink-muted)]">{stat.label}</span>
+                                    <span className="block text-[11px] font-semibold text-[var(--ink)] tabular-nums">{stat.value}</span>
+                                  </span>
+                                ))}
+                              </div>
+                              {(item.reasons.length > 0 || item.warnings.length > 0 || typeof item.metrics.bugRate === 'number') && (
+                                <div className="mt-2 flex flex-wrap gap-1.5">
+                                  {item.reasons.slice(0, 2).map((reason) => (
+                                    <span key={reason} className="rounded-full bg-emerald-50 px-2 py-0.5 text-[10px] text-emerald-700">{reason}</span>
+                                  ))}
+                                  {typeof item.metrics.bugRate === 'number' && (
+                                    <span className="rounded-full bg-blue-50 px-2 py-0.5 text-[10px] text-blue-700">Bug率 {item.metrics.bugRate}</span>
+                                  )}
+                                  {item.warnings.slice(0, 2).map((warning) => (
+                                    <span key={warning} className="inline-flex items-center gap-1 rounded-full bg-amber-50 px-2 py-0.5 text-[10px] text-amber-700">
+                                      <AlertTriangle className="h-3 w-3" />
+                                      {warning}
+                                    </span>
+                                  ))}
+                                </div>
+                              )}
+                            </div>
+                          </div>
+                        </button>
+                      );
+                    })}
+                  </div>
+                </section>
+              ))}
+            </div>
+          )}
+        </div>
+
+        <div className="flex items-center justify-between gap-3 border-t border-[var(--line)] px-5 py-4">
+          <button
+            type="button"
+            onClick={() => setSelectedNames(new Set())}
+            disabled={selectedNames.size === 0}
+            className="h-8 rounded-lg border border-[var(--line)] px-3 text-[12px] font-medium text-[var(--ink-soft)] hover:bg-[var(--bg-subtle)] disabled:cursor-not-allowed disabled:opacity-45"
+          >
+            清空选择
+          </button>
+          <div className="flex items-center gap-2">
+            <button onClick={onClose} className="h-8 rounded-lg border border-[var(--line)] px-3 text-[12px] font-medium text-[var(--ink-soft)] hover:bg-[var(--bg-subtle)]">取消</button>
+            <button onClick={handleAdd} disabled={selectedNames.size === 0} className="inline-flex h-8 items-center gap-1.5 rounded-lg bg-violet-600 px-4 text-[12px] font-medium text-white disabled:cursor-not-allowed disabled:opacity-45">
+              <UserPlus className="h-3.5 w-3.5" />
+              添加 {selectedNames.size} 人
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
 function MemberSettingModal({ members, allMembers, onSave, onClose }: {
   members: { role: Role; name: string }[];
   allMembers: { id: string; name: string; departmentName?: string }[];
diff --git a/apps/web/app/workspace/page.tsx b/apps/web/app/workspace/page.tsx
index d1c36b8..e900573 100644
--- a/apps/web/app/workspace/page.tsx
+++ b/apps/web/app/workspace/page.tsx
@@ -11,6 +11,7 @@ import { useTestCaseStore } from '@/stores/useTestCaseStore';
 import { useBugStore } from '@/stores/useBugStore';
 import { useAuthStore } from '@/stores/useAuthStore';
 import { useTaskWorklogStore } from '@/stores/useTaskWorklogStore';
+import { useWorkActivityStore } from '@/stores/useWorkActivityStore';
 import { flattenVersions } from '@/lib/derive';
 import { aggregateWorkItems, WORK_ITEM_TYPE_LABEL } from '@/lib/workspace-engine';
 import type { WorkItem, WorkItemType } from '@/lib/workspace-engine';
@@ -55,6 +56,7 @@ export default function WorkspacePage() {
   const { testCases, fetchTestCases } = useTestCaseStore();
   const { bugs, fetchBugs } = useBugStore();
   const { worklogs, fetchWorklogs } = useTaskWorklogStore();
+  const { activities, fetchActivities } = useWorkActivityStore();
   const user = useAuthStore((s) => s.user);
   const [activeTab, setActiveTab] = useState<TabKey>('all');
   const [showCompleted, setShowCompleted] = useState(true);
@@ -69,6 +71,7 @@ export default function WorkspacePage() {
   useEffect(() => { fetchTestCases(); }, [fetchTestCases]);
   useEffect(() => { fetchBugs(); }, [fetchBugs]);
   useEffect(() => { fetchWorklogs(); }, [fetchWorklogs]);
+  useEffect(() => { fetchActivities(); }, [fetchActivities]);
 
   const userName = user?.name ?? '';
   const allVersions = useMemo(() => flattenVersions(overview), [overview]);
@@ -122,12 +125,13 @@ export default function WorkspacePage() {
 
   const dailyReport = useMemo(() =>
     getWorkspaceDailyReport({
+      activities,
       worklogs,
       workItems,
       userId: userName,
       date: today,
     }),
-    [worklogs, workItems, userName, today]
+    [activities, worklogs, workItems, userName, today]
   );
 
   // 待办数量按 tab 分（受 version filter 影响）
diff --git a/apps/web/components/dev-task/DevTaskDetailDrawer.tsx b/apps/web/components/dev-task/DevTaskDetailDrawer.tsx
index 90e4f5e..ab1eb1c 100644
--- a/apps/web/components/dev-task/DevTaskDetailDrawer.tsx
+++ b/apps/web/components/dev-task/DevTaskDetailDrawer.tsx
@@ -5,6 +5,7 @@ import { X, AlertTriangle, Link2, ChevronRight, Clock, User, Tag, Play, Trash2,
 import { StatusBadge } from './StatusBadge';
 import { CategoryChip } from './CategoryChip';
 import { useDevTaskStore } from '@/stores/useDevTaskStore';
+import { useWorkActivityStore } from '@/stores/useWorkActivityStore';
 import { useTaskCategoryStore } from '@/stores/useTaskCategoryStore';
 import { useRequirementStore } from '@/stores/useRequirementStore';
 import { useMemberStore } from '@/stores/useMemberStore';
@@ -29,6 +30,7 @@ interface Props {
 
 export function DevTaskDetailDrawer({ taskId, allTaskIds, onClose, contextLabel }: Props) {
   const { tasks, changeStatus, setBlocked, deleteTask, updateTask } = useDevTaskStore();
+  const addProgressNote = useWorkActivityStore((s) => s.addProgressNote);
   const { categories } = useTaskCategoryStore();
   const { requirements } = useRequirementStore();
   const { members } = useMemberStore();
@@ -36,6 +38,10 @@ export function DevTaskDetailDrawer({ taskId, allTaskIds, onClose, contextLabel
   const [transferTo, setTransferTo] = useState('');
   const [showDelayInput, setShowDelayInput] = useState(false);
   const [delayReason, setDelayReason] = useState('');
+  const [progressNote, setProgressNote] = useState('');
+  const [progressBlocker, setProgressBlocker] = useState('');
+  const [progressHelperId, setProgressHelperId] = useState('');
+  const [progressDelayRisk, setProgressDelayRisk] = useState('');
 
   const task = tasks.find((t) => t.id === taskId);
   if (!task) return null;
@@ -86,6 +92,28 @@ export function DevTaskDetailDrawer({ taskId, allTaskIds, onClose, contextLabel
     setBlockReason('');
   };
 
+  const handleProgressNote = () => {
+    const note = progressNote.trim();
+    const blocker = progressBlocker.trim();
+    const delayRisk = progressDelayRisk.trim();
+    if (!note && !blocker && !delayRisk) return;
+
+    addProgressNote({
+      actorId: task.assigneeId,
+      sourceType: 'dev_task',
+      sourceId: task.id,
+      title: task.title,
+      note: note || '今日进展已更新',
+      blocker: blocker || undefined,
+      helperId: progressHelperId || undefined,
+      delayRisk: delayRisk || undefined,
+    });
+    setProgressNote('');
+    setProgressBlocker('');
+    setProgressHelperId('');
+    setProgressDelayRisk('');
+  };
+
   return (
     <div className="fixed inset-0 z-50 flex justify-end" onClick={onClose}>
       <div className="w-full max-w-md h-full bg-[var(--bg)] border-l border-[var(--line)] shadow-2xl flex flex-col" onClick={(e) => e.stopPropagation()}>
@@ -199,6 +227,50 @@ export function DevTaskDetailDrawer({ taskId, allTaskIds, onClose, contextLabel
             </div>
           </div>
 
+          {task.status !== 'todo' && task.status !== 'submitted' && (
+            <div className="rounded-xl border border-[var(--line)] bg-[var(--bg-card)] p-4 space-y-3">
+              <div className="text-[10px] text-[var(--ink-muted)] uppercase tracking-wide">今日进展</div>
+              <textarea
+                value={progressNote}
+                onChange={(e) => setProgressNote(e.target.value)}
+                placeholder="今日完成内容、剩余内容"
+                rows={3}
+                className="w-full resize-none rounded-lg border border-[var(--line)] bg-[var(--bg)] px-3 py-2 text-[12px] leading-5 text-[var(--ink)] focus:border-[var(--accent)] focus:outline-none"
+              />
+              <div className="grid grid-cols-2 gap-2">
+                <input
+                  value={progressBlocker}
+                  onChange={(e) => setProgressBlocker(e.target.value)}
+                  placeholder="阻塞原因"
+                  className="h-8 rounded-lg border border-[var(--line)] bg-[var(--bg)] px-2 text-[12px] focus:border-orange-400 focus:outline-none"
+                />
+                <select
+                  value={progressHelperId}
+                  onChange={(e) => setProgressHelperId(e.target.value)}
+                  className="h-8 rounded-lg border border-[var(--line)] bg-[var(--bg)] px-2 text-[12px] text-[var(--ink)] focus:border-[var(--accent)] focus:outline-none"
+                >
+                  <option value="">协助人</option>
+                  {members.filter((m) => m.name !== task.assigneeId).map((m) => <option key={m.id} value={m.name}>{m.name}</option>)}
+                </select>
+              </div>
+              <input
+                value={progressDelayRisk}
+                onChange={(e) => setProgressDelayRisk(e.target.value)}
+                placeholder="延期风险"
+                className="h-8 w-full rounded-lg border border-[var(--line)] bg-[var(--bg)] px-2 text-[12px] focus:border-orange-400 focus:outline-none"
+              />
+              <div className="flex justify-end">
+                <button
+                  onClick={handleProgressNote}
+                  disabled={!progressNote.trim() && !progressBlocker.trim() && !progressDelayRisk.trim()}
+                  className="h-8 px-3 rounded-lg text-[12px] font-medium bg-[var(--accent)] text-white hover:bg-[var(--accent-hover)] disabled:opacity-50"
+                >
+                  记录进展
+                </button>
+              </div>
+            </div>
+          )}
+
           <div className="rounded-xl border border-[var(--line)] bg-[var(--bg-card)] p-4">
             <div className="text-[10px] text-[var(--ink-muted)] uppercase tracking-wide mb-3 flex items-center gap-1.5"><CalendarRange className="h-3 w-3" />时间信息</div>
             <div className="grid grid-cols-2 gap-y-2.5 gap-x-4 text-[12px]">
diff --git a/apps/web/components/workspace/DailyReportPanel.tsx b/apps/web/components/workspace/DailyReportPanel.tsx
index 39ba275..baf2a3f 100644
--- a/apps/web/components/workspace/DailyReportPanel.tsx
+++ b/apps/web/components/workspace/DailyReportPanel.tsx
@@ -1,7 +1,9 @@
 'use client';
 
-import { CalendarDays, ClipboardList, Clock3 } from 'lucide-react';
+import { AlertTriangle, CalendarDays, ClipboardList, Clock3 } from 'lucide-react';
+import { WORK_ACTIVITY_CATEGORY_LABEL, type WorkActivityCategory } from '@/lib/work-activity';
 import type { WorkspaceDailyReport } from '@/lib/workspace-daily-report';
+import { formatDateTimeShort } from '@/lib/format';
 import { formatWorkHours, formatWorkHoursShort } from '@/lib/work-hours';
 
 interface Props {
@@ -9,6 +11,11 @@ interface Props {
 }
 
 export function DailyReportPanel({ report }: Props) {
+  const groupOrder: WorkActivityCategory[] = ['delivery', 'progress', 'creation', 'risk', 'note'];
+  const hasActivities = groupOrder.some((key) => report.groups[key].length > 0);
+  const hasLegacyWorklogs = report.items.length > 0;
+  const hasNeedsProgress = report.needsProgressItems.length > 0;
+
   return (
     <aside className="w-80 shrink-0 border-l border-[var(--line)] bg-[var(--bg-card)] flex flex-col">
       <div className="flex h-14 items-center justify-between border-b border-[var(--line)] px-4">
@@ -25,47 +32,100 @@ export function DailyReportPanel({ report }: Props) {
         <div className="rounded-lg border border-[var(--line)] bg-[var(--bg)] p-2">
           <div className="flex items-center gap-1 text-[10px] text-[var(--ink-muted)]">
             <Clock3 className="h-3 w-3" />
-            <span>今日合计</span>
+            <span>工时合计</span>
           </div>
           <p className="mt-1 text-[16px] font-semibold text-[var(--ink)]">{formatWorkHours(report.totalHours)}</p>
         </div>
         <div className="rounded-lg border border-[var(--line)] bg-[var(--bg)] p-2">
           <div className="flex items-center gap-1 text-[10px] text-[var(--ink-muted)]">
             <ClipboardList className="h-3 w-3" />
-            <span>已登记</span>
+            <span>日报记录</span>
           </div>
           <p className="mt-1 text-[16px] font-semibold text-[var(--ink)]">{report.totalCount} 条</p>
         </div>
       </div>
 
       <div className="flex-1 overflow-y-auto p-3">
-        {report.items.length === 0 ? (
+        {!hasActivities && !hasLegacyWorklogs && !hasNeedsProgress ? (
           <div className="rounded-lg border border-dashed border-[var(--line)] bg-[var(--bg)] p-4 text-center">
             <p className="text-[13px] font-medium text-[var(--ink)]">今日暂无日报记录</p>
-            <p className="mt-1 text-[11px] leading-5 text-[var(--ink-muted)]">从任务详情里的工时记录登记今日工作内容。</p>
           </div>
         ) : (
-          <div className="space-y-2">
-            {report.items.map((item) => {
-              const contextLabel = [item.productName, item.projectName, item.versionName].filter(Boolean).join(' / ');
+          <div className="space-y-4">
+            {groupOrder.map((key) => {
+              const items = report.groups[key];
+              if (items.length === 0) return null;
 
               return (
-                <div key={item.id} className="rounded-lg border border-[var(--line)] bg-[var(--bg)] p-3">
-                  <div className="flex items-start justify-between gap-2">
-                    <p className="min-w-0 flex-1 break-words text-[12px] font-medium leading-5 text-[var(--ink)]">{item.workContent}</p>
-                    <span className="shrink-0 rounded bg-[var(--accent-soft)] px-1.5 py-0.5 text-[10px] font-medium text-[var(--accent)]">
-                      {formatWorkHoursShort(item.hours)}
-                    </span>
+                <section key={key}>
+                  <div className="mb-2 flex items-center justify-between">
+                    <h3 className="text-[11px] font-semibold text-[var(--ink-soft)]">{WORK_ACTIVITY_CATEGORY_LABEL[key]}</h3>
+                    <span className="text-[10px] text-[var(--ink-muted)]">{items.length} 条</span>
                   </div>
-                  <p className="mt-2 truncate text-[11px] text-[var(--ink-soft)]" title={item.taskTitle}>{item.taskTitle}</p>
-                  {contextLabel && (
-                    <p className="mt-1 truncate text-[10px] text-[var(--ink-muted)]" title={contextLabel}>
-                      {contextLabel}
-                    </p>
-                  )}
-                </div>
+                  <div className="space-y-2">
+                    {items.map((item) => (
+                      <div key={item.id} className="rounded-lg border border-[var(--line)] bg-[var(--bg)] p-3">
+                        <div className="flex items-start justify-between gap-2">
+                          <p className="min-w-0 flex-1 break-words text-[12px] font-medium leading-5 text-[var(--ink)]">{item.summary}</p>
+                          <span className="shrink-0 text-[10px] text-[var(--ink-muted)]">{formatDateTimeShort(item.occurredAt)}</span>
+                        </div>
+                        {item.context && (
+                          <p className="mt-1 truncate text-[10px] text-[var(--ink-muted)]" title={item.context}>{item.context}</p>
+                        )}
+                      </div>
+                    ))}
+                  </div>
+                </section>
               );
             })}
+
+            {hasLegacyWorklogs && (
+              <section>
+                <div className="mb-2 flex items-center justify-between">
+                  <h3 className="text-[11px] font-semibold text-[var(--ink-soft)]">工时记录</h3>
+                  <span className="text-[10px] text-[var(--ink-muted)]">{report.items.length} 条</span>
+                </div>
+                <div className="space-y-2">
+                  {report.items.map((item) => {
+                    const contextLabel = [item.productName, item.projectName, item.versionName].filter(Boolean).join(' / ');
+
+                    return (
+                      <div key={item.id} className="rounded-lg border border-[var(--line)] bg-[var(--bg)] p-3">
+                        <div className="flex items-start justify-between gap-2">
+                          <p className="min-w-0 flex-1 break-words text-[12px] font-medium leading-5 text-[var(--ink)]">{item.workContent}</p>
+                          <span className="shrink-0 rounded bg-[var(--accent-soft)] px-1.5 py-0.5 text-[10px] font-medium text-[var(--accent)]">
+                            {formatWorkHoursShort(item.hours)}
+                          </span>
+                        </div>
+                        <p className="mt-2 truncate text-[11px] text-[var(--ink-soft)]" title={item.taskTitle}>{item.taskTitle}</p>
+                        {contextLabel && (
+                          <p className="mt-1 truncate text-[10px] text-[var(--ink-muted)]" title={contextLabel}>
+                            {contextLabel}
+                          </p>
+                        )}
+                      </div>
+                    );
+                  })}
+                </div>
+              </section>
+            )}
+
+            {hasNeedsProgress && (
+              <section>
+                <div className="mb-2 flex items-center gap-1.5">
+                  <AlertTriangle className="h-3 w-3 text-orange-500" />
+                  <h3 className="text-[11px] font-semibold text-orange-700">需补进展</h3>
+                </div>
+                <div className="space-y-2">
+                  {report.needsProgressItems.map((item) => (
+                    <div key={item.id} className="rounded-lg border border-orange-200 bg-orange-50 p-3">
+                      <p className="break-words text-[12px] font-medium leading-5 text-orange-800">{item.title}</p>
+                      {item.context && <p className="mt-1 truncate text-[10px] text-orange-700/70" title={item.context}>{item.context}</p>}
+                    </div>
+                  ))}
+                </div>
+              </section>
+            )}
           </div>
         )}
       </div>
diff --git a/apps/web/lib/member-recommendation.test.ts b/apps/web/lib/member-recommendation.test.ts
new file mode 100644
index 0000000..b84d897
--- /dev/null
+++ b/apps/web/lib/member-recommendation.test.ts
@@ -0,0 +1,303 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import { addRecommendedVersionMembers, getDefaultRecommendedMemberNames, recommendVersionMembers } from './member-recommendation';
+import type { DevTask } from './dev-task';
+import type { Requirement } from './requirement';
+import type { TestCase } from './test-case';
+import { PRESET_CATEGORIES } from './task-category';
+
+function devTask(patch: Partial<DevTask>): DevTask {
+  return {
+    id: patch.id || 'dev-1',
+    taskNo: patch.taskNo || 'DEV-001',
+    requirementId: patch.requirementId || 'req-1',
+    title: patch.title || 'Dev task',
+    categoryId: patch.categoryId || 'cat-1',
+    assigneeId: patch.assigneeId || 'Backend A',
+    priority: patch.priority || 'P2',
+    expectedStartAt: patch.expectedStartAt || '2026-06-24T09:00:00',
+    expectedEndAt: patch.expectedEndAt || '2026-06-24T18:00:00',
+    estimateHours: patch.estimateHours,
+    aiEstimateHours: patch.aiEstimateHours,
+    actualStartAt: patch.actualStartAt,
+    actualEndAt: patch.actualEndAt,
+    status: patch.status || 'in_progress',
+    isBlocked: patch.isBlocked ?? false,
+    createdBy: patch.createdBy || 'PM',
+    createdAt: patch.createdAt || '2026-06-23T09:00:00',
+    updatedAt: patch.updatedAt || '2026-06-24T10:00:00',
+  };
+}
+
+function requirement(patch: Partial<Requirement>): Requirement {
+  return {
+    id: patch.id || 'req-1',
+    code: patch.code || 'REQ-001',
+    title: patch.title || 'Requirement',
+    description: patch.description || 'Requirement description',
+    productId: patch.productId || 'prod-1',
+    projectId: patch.projectId || 'proj-1',
+    versionId: patch.versionId || 'ver-1',
+    sourceType: patch.sourceType || 'internal',
+    sourceTarget: patch.sourceTarget || 'Product',
+    platforms: patch.platforms || ['web'],
+    typeId: patch.typeId || 'type-1',
+    status: patch.status || 'planned',
+    priority: patch.priority || 'P2',
+    effort: patch.effort || 'M',
+    productOwner: patch.productOwner || 'PM',
+    creator: patch.creator || 'PM',
+    createdAt: patch.createdAt || '2026-06-23',
+  };
+}
+
+function testCase(patch: Partial<TestCase>): TestCase {
+  return {
+    id: patch.id || 'tc-1',
+    caseNo: patch.caseNo || 'TC-001',
+    versionId: patch.versionId || 'ver-1',
+    requirementId: patch.requirementId,
+    title: patch.title || 'Test case',
+    categoryId: patch.categoryId || 'cat-test-functional',
+    priority: patch.priority || 'P2',
+    assigneeId: patch.assigneeId,
+    status: patch.status || 'pending',
+    estimateHours: patch.estimateHours,
+    aiEstimateHours: patch.aiEstimateHours,
+    startedAt: patch.startedAt,
+    completedAt: patch.completedAt,
+    createdBy: patch.createdBy || 'QA',
+    createdAt: patch.createdAt || '2026-06-23T09:00:00',
+    updatedAt: patch.updatedAt || '2026-06-24T10:00:00',
+  };
+}
+
+test('recommendVersionMembers only recommends frontend backend and testing candidates outside current members', () => {
+  const groups = recommendVersionMembers({
+    candidates: [
+      { id: 'm-1', name: 'Frontend', departmentName: '前端组' },
+      { id: 'm-2', name: 'Backend', departmentName: '后端组' },
+      { id: 'm-3', name: 'Tester', departmentName: '测试组' },
+      { id: 'm-4', name: 'Product', departmentName: '产品部' },
+      { id: 'm-5', name: 'Designer', departmentName: '设计部' },
+    ],
+    currentMembers: [{ name: 'Frontend', role: 'frontend' }],
+    devTasks: [],
+    testCases: [],
+    bugs: [],
+  });
+
+  assert.deepEqual(groups.map((group) => group.role), ['backend', 'testing']);
+  assert.deepEqual(groups.flatMap((group) => group.items.map((item) => item.name)), ['Backend', 'Tester']);
+});
+
+test('recommendVersionMembers ranks idle people above overloaded people with deadline conflicts', () => {
+  const groups = recommendVersionMembers({
+    candidates: [
+      { id: 'm-1', name: 'Backend Busy', departmentName: '后端组' },
+      { id: 'm-2', name: 'Backend Idle', departmentName: '后端组' },
+    ],
+    currentMembers: [],
+    devTasks: [
+      devTask({
+        assigneeId: 'Backend Busy',
+        estimateHours: 16,
+        expectedEndAt: '2026-06-30T18:00:00',
+      }),
+    ],
+    testCases: [],
+    bugs: [],
+    versionDeadline: '2026-06-28T18:00:00',
+  });
+
+  const backendItems = groups.find((group) => group.role === 'backend')?.items ?? [];
+  assert.equal(backendItems[0].name, 'Backend Idle');
+  assert.equal(backendItems[1].metrics.deadlineConflictCount, 1);
+  assert.ok(backendItems[1].warnings.some((warning) => warning.includes('截止')));
+});
+
+test('recommendVersionMembers uses historical bug rate without punishing missing history', () => {
+  const groups = recommendVersionMembers({
+    candidates: [
+      { id: 'm-1', name: 'Stable Dev', departmentName: '后端组' },
+      { id: 'm-2', name: 'Risky Dev', departmentName: '后端组' },
+      { id: 'm-3', name: 'New Dev', departmentName: '后端组' },
+    ],
+    currentMembers: [],
+    devTasks: [],
+    testCases: [],
+    bugs: [],
+    historicalStats: [
+      { name: 'Stable Dev', projectParticipationCount: 4, deliveredTaskCount: 20, severityWeightedBugCount: 2 },
+      { name: 'Risky Dev', projectParticipationCount: 4, deliveredTaskCount: 20, severityWeightedBugCount: 14 },
+    ],
+  });
+
+  const backendItems = groups.find((group) => group.role === 'backend')?.items ?? [];
+  const stable = backendItems.find((item) => item.name === 'Stable Dev')!;
+  const risky = backendItems.find((item) => item.name === 'Risky Dev')!;
+  const newcomer = backendItems.find((item) => item.name === 'New Dev')!;
+
+  assert.ok(stable.score > risky.score);
+  assert.equal(stable.confidence, 'high');
+  assert.equal(newcomer.confidence, 'medium');
+  assert.equal(newcomer.metrics.bugRate, undefined);
+});
+
+test('recommendVersionMembers limits candidates to strict AI-assisted role demand from requirements', () => {
+  const groups = recommendVersionMembers({
+    candidates: [
+      { id: 'm-f1', name: 'Frontend A', departmentName: '前端组' },
+      { id: 'm-f2', name: 'Frontend B', departmentName: '前端组' },
+      { id: 'm-f3', name: 'Frontend C', departmentName: '前端组' },
+      { id: 'm-b1', name: 'Backend A', departmentName: '后端组' },
+      { id: 'm-b2', name: 'Backend B', departmentName: '后端组' },
+      { id: 'm-q1', name: 'QA A', departmentName: '测试组' },
+      { id: 'm-q2', name: 'QA B', departmentName: '测试组' },
+    ],
+    currentMembers: [{ name: 'Backend Existing', role: 'backend' }],
+    devTasks: [],
+    testCases: [],
+    bugs: [],
+    scopeRequirements: [
+      requirement({ id: 'req-xl', effort: 'XL' }),
+      requirement({ id: 'req-l', effort: 'L' }),
+      requirement({ id: 'req-m', effort: 'M' }),
+    ],
+    scopeDevTasks: [],
+    scopeTestCases: [],
+  });
+
+  const frontend = groups.find((group) => group.role === 'frontend')!;
+  const backend = groups.find((group) => group.role === 'backend')!;
+  const testing = groups.find((group) => group.role === 'testing')!;
+
+  assert.equal(frontend.requiredCount, 2);
+  assert.equal(frontend.currentCount, 0);
+  assert.equal(frontend.missingCount, 2);
+  assert.equal(frontend.items.length, 2);
+  assert.equal(backend.requiredCount, 2);
+  assert.equal(backend.currentCount, 1);
+  assert.equal(backend.missingCount, 1);
+  assert.equal(backend.items.length, 1);
+  assert.equal(testing.requiredCount, 1);
+  assert.equal(testing.items.length, 1);
+});
+
+test('recommendVersionMembers omits roles without scoped task demand', () => {
+  const groups = recommendVersionMembers({
+    candidates: [
+      { id: 'm-f1', name: 'Frontend A', departmentName: '前端组' },
+      { id: 'm-b1', name: 'Backend A', departmentName: '后端组' },
+      { id: 'm-q1', name: 'QA A', departmentName: '测试组' },
+    ],
+    currentMembers: [],
+    devTasks: [],
+    testCases: [],
+    bugs: [],
+    scopeRequirements: [],
+    scopeDevTasks: [
+      devTask({ id: 'dev-backend', categoryId: 'cat-backend-api', estimateHours: 20, assigneeId: 'Someone' }),
+    ],
+    scopeTestCases: [
+      testCase({ id: 'tc-functional', estimateHours: 6 }),
+    ],
+    taskCategories: PRESET_CATEGORIES,
+  });
+
+  assert.deepEqual(groups.map((group) => group.role), ['backend', 'testing']);
+  assert.equal(groups.find((group) => group.role === 'backend')?.items.length, 1);
+  assert.equal(groups.find((group) => group.role === 'testing')?.items.length, 1);
+});
+
+test('addRecommendedVersionMembers appends selected people with recommended roles once', () => {
+  const next = addRecommendedVersionMembers(
+    [
+      { name: 'Product Owner', role: 'product' },
+      { name: 'Backend Existing', role: 'backend' },
+    ],
+    ['Frontend Candidate', 'Backend Existing', 'QA Candidate'],
+    [
+      {
+        name: 'Frontend Candidate',
+        role: 'frontend',
+        score: 88,
+        confidence: 'medium',
+        reasons: [],
+        warnings: [],
+        metrics: {
+          activeTaskCount: 0,
+          activeBugCount: 0,
+          deadlineConflictCount: 0,
+          remainingHours: 0,
+          recentOvertimeHours: 0,
+          availableInDays: 0,
+        },
+      },
+      {
+        name: 'Backend Existing',
+        role: 'backend',
+        score: 80,
+        confidence: 'medium',
+        reasons: [],
+        warnings: [],
+        metrics: {
+          activeTaskCount: 0,
+          activeBugCount: 0,
+          deadlineConflictCount: 0,
+          remainingHours: 0,
+          recentOvertimeHours: 0,
+          availableInDays: 0,
+        },
+      },
+      {
+        name: 'QA Candidate',
+        role: 'testing',
+        score: 84,
+        confidence: 'medium',
+        reasons: [],
+        warnings: [],
+        metrics: {
+          activeTaskCount: 0,
+          activeBugCount: 0,
+          deadlineConflictCount: 0,
+          remainingHours: 0,
+          recentOvertimeHours: 0,
+          availableInDays: 0,
+        },
+      },
+    ],
+  );
+
+  assert.deepEqual(next, [
+    { name: 'Product Owner', role: 'product' },
+    { name: 'Backend Existing', role: 'backend' },
+    { name: 'Frontend Candidate', role: 'frontend' },
+    { name: 'QA Candidate', role: 'testing' },
+  ]);
+});
+
+test('getDefaultRecommendedMemberNames selects every displayed recommendation within role gaps', () => {
+  const groups = recommendVersionMembers({
+    candidates: [
+      { id: 'm-f1', name: 'Frontend A', departmentName: '前端组' },
+      { id: 'm-f2', name: 'Frontend B', departmentName: '前端组' },
+      { id: 'm-f3', name: 'Frontend C', departmentName: '前端组' },
+      { id: 'm-b1', name: 'Backend A', departmentName: '后端组' },
+      { id: 'm-b2', name: 'Backend B', departmentName: '后端组' },
+    ],
+    currentMembers: [],
+    devTasks: [],
+    testCases: [],
+    bugs: [],
+    scopeRequirements: [
+      requirement({ id: 'req-xl', effort: 'XL' }),
+      requirement({ id: 'req-xl-2', effort: 'XL' }),
+    ],
+    scopeDevTasks: [],
+    scopeTestCases: [],
+  });
+
+  assert.deepEqual(getDefaultRecommendedMemberNames(groups), ['Frontend A', 'Frontend B', 'Backend A', 'Backend B']);
+});
diff --git a/apps/web/lib/member-recommendation.ts b/apps/web/lib/member-recommendation.ts
new file mode 100644
index 0000000..1c2f3f6
--- /dev/null
+++ b/apps/web/lib/member-recommendation.ts
@@ -0,0 +1,400 @@
+import type { Role } from './stage';
+import type { VersionMember, VersionMemberCandidate } from './version-members';
+import type { DevTask } from './dev-task';
+import { STATUS_PROGRESS, getEstimateHours } from './dev-task';
+import type { TestCase } from './test-case';
+import { TEST_CASE_STATUS_PROGRESS, getTestCaseEstimateHours } from './test-case';
+import type { Bug, BugSeverity } from './bug';
+import type { OvertimeRecord } from './overtime';
+import type { Effort, Requirement } from './requirement';
+import type { TaskCategory } from './task-category';
+
+export type RecommendableRole = 'frontend' | 'backend' | 'testing';
+export type RecommendationConfidence = 'high' | 'medium' | 'low';
+
+export interface HistoricalMemberStats {
+  name: string;
+  projectParticipationCount?: number;
+  deliveredTaskCount?: number;
+  severityWeightedBugCount?: number;
+  delayRate?: number;
+}
+
+export interface MemberRecommendationMetrics {
+  activeTaskCount: number;
+  activeBugCount: number;
+  deadlineConflictCount: number;
+  remainingHours: number;
+  recentOvertimeHours: number;
+  projectParticipationCount?: number;
+  bugRate?: number;
+  availableInDays: number;
+}
+
+export interface MemberRecommendationItem {
+  name: string;
+  role: RecommendableRole;
+  score: number;
+  confidence: RecommendationConfidence;
+  reasons: string[];
+  warnings: string[];
+  metrics: MemberRecommendationMetrics;
+}
+
+export interface MemberRecommendationGroup {
+  role: RecommendableRole;
+  requiredCount: number;
+  currentCount: number;
+  missingCount: number;
+  scopeHours: number;
+  items: MemberRecommendationItem[];
+}
+
+export interface MemberRecommendationInput {
+  candidates: VersionMemberCandidate[];
+  currentMembers: VersionMember[];
+  devTasks: DevTask[];
+  testCases: TestCase[];
+  bugs: Bug[];
+  overtimeRecords?: OvertimeRecord[];
+  versionDeadline?: string | null;
+  historicalStats?: HistoricalMemberStats[];
+  scopeRequirements?: Requirement[];
+  scopeDevTasks?: DevTask[];
+  scopeTestCases?: TestCase[];
+  taskCategories?: TaskCategory[];
+  now?: Date;
+}
+
+const ROLE_ORDER: RecommendableRole[] = ['frontend', 'backend', 'testing'];
+const BUG_SEVERITY_WEIGHT: Record<BugSeverity, number> = {
+  critical: 4,
+  major: 3,
+  minor: 1.5,
+  trivial: 0.5,
+};
+const AI_ASSISTED_ROLE_CAPACITY_HOURS: Record<RecommendableRole, number> = {
+  frontend: 32,
+  backend: 32,
+  testing: 40,
+};
+const REQUIREMENT_AI_SCOPE_HOURS: Record<Effort, Record<RecommendableRole, number>> = {
+  S: { frontend: 4, backend: 4, testing: 3 },
+  M: { frontend: 8, backend: 8, testing: 5 },
+  L: { frontend: 16, backend: 16, testing: 8 },
+  XL: { frontend: 24, backend: 24, testing: 12 },
+};
+
+function clampScore(score: number): number {
+  return Math.max(0, Math.min(100, Math.round(score)));
+}
+
+function roundTenth(value: number): number {
+  return Math.round(value * 10) / 10;
+}
+
+function isTerminalDevTask(task: DevTask): boolean {
+  return task.status === 'submitted';
+}
+
+function isTerminalTestCase(testCase: TestCase): boolean {
+  return testCase.status === 'passed' || testCase.status === 'failed' || testCase.status === 'blocked';
+}
+
+function isTerminalBug(bug: Bug): boolean {
+  return bug.status === 'closed' || bug.status === 'rejected';
+}
+
+function getDevTaskRemainingHours(task: DevTask): number {
+  const estimate = getEstimateHours(task);
+  if (estimate <= 0) return 2;
+  const progress = STATUS_PROGRESS[task.status] ?? 0;
+  return Math.max(0, estimate * (100 - progress) / 100);
+}
+
+function getTestCaseRemainingHours(testCase: TestCase): number {
+  const estimate = getTestCaseEstimateHours(testCase);
+  if (estimate <= 0) return testCase.status === 'running' ? 0.75 : 1.5;
+  const progress = TEST_CASE_STATUS_PROGRESS[testCase.status] ?? 0;
+  return Math.max(0, estimate * (100 - progress) / 100);
+}
+
+function getBugRemainingHours(bug: Bug): number {
+  if (typeof bug.estimateHours === 'number' && bug.estimateHours > 0) return bug.estimateHours;
+  if (typeof bug.aiEstimateHours === 'number' && bug.aiEstimateHours > 0) return bug.aiEstimateHours;
+  return Math.max(1, BUG_SEVERITY_WEIGHT[bug.severity] ?? 1);
+}
+
+function isAfterDeadline(value: string | undefined, deadline: string | null | undefined): boolean {
+  if (!value || !deadline) return false;
+  const valueMs = new Date(value).getTime();
+  const deadlineMs = new Date(deadline).getTime();
+  return Number.isFinite(valueMs) && Number.isFinite(deadlineMs) && valueMs > deadlineMs;
+}
+
+function inferRecommendableRole(candidate: VersionMemberCandidate): RecommendableRole | undefined {
+  const departmentName = candidate.departmentName?.toLowerCase() ?? '';
+  if (!departmentName) return undefined;
+  if (departmentName.includes('测试') || departmentName.includes('质量') || departmentName.includes('qa')) return 'testing';
+  if (departmentName.includes('后端') || departmentName.includes('backend') || departmentName.includes('server')) return 'backend';
+  if (departmentName.includes('前端') || departmentName.includes('frontend') || departmentName.includes('web') || departmentName.includes('client')) return 'frontend';
+  return undefined;
+}
+
+function getConfidence(candidate: VersionMemberCandidate, stats: HistoricalMemberStats | undefined, hasCurrentActivity: boolean): RecommendationConfidence {
+  const hasHistory = Boolean(
+    stats &&
+    (
+      typeof stats.projectParticipationCount === 'number' ||
+      typeof stats.deliveredTaskCount === 'number' ||
+      typeof stats.severityWeightedBugCount === 'number' ||
+      typeof stats.delayRate === 'number'
+    ),
+  );
+  if (hasHistory) return 'high';
+  if (candidate.departmentName || hasCurrentActivity) return 'medium';
+  return 'low';
+}
+
+function getHistoricalBugRate(stats: HistoricalMemberStats | undefined): number | undefined {
+  if (!stats?.deliveredTaskCount || stats.deliveredTaskCount <= 0) return undefined;
+  if (typeof stats.severityWeightedBugCount !== 'number') return undefined;
+  return roundTenth(stats.severityWeightedBugCount / stats.deliveredTaskCount);
+}
+
+function hasScopedDemandInput(input: MemberRecommendationInput): boolean {
+  return Boolean(input.scopeRequirements || input.scopeDevTasks || input.scopeTestCases);
+}
+
+function countCurrentMembersByRole(currentMembers: VersionMember[]): Record<RecommendableRole, number> {
+  const counts: Record<RecommendableRole, number> = { frontend: 0, backend: 0, testing: 0 };
+  for (const member of currentMembers) {
+    if (member.role === 'frontend' || member.role === 'backend' || member.role === 'testing') {
+      counts[member.role] += 1;
+    }
+  }
+  return counts;
+}
+
+function getRequirementScopeHours(requirements: Requirement[]): Record<RecommendableRole, number> {
+  const hours: Record<RecommendableRole, number> = { frontend: 0, backend: 0, testing: 0 };
+  for (const requirement of requirements) {
+    const scope = REQUIREMENT_AI_SCOPE_HOURS[requirement.effort] ?? REQUIREMENT_AI_SCOPE_HOURS.M;
+    hours.frontend += scope.frontend;
+    hours.backend += scope.backend;
+    hours.testing += scope.testing;
+  }
+  return hours;
+}
+
+function inferDevTaskScopeRole(task: DevTask, categories: TaskCategory[]): RecommendableRole | undefined {
+  const category = categories.find((item) => item.id === task.categoryId);
+  const text = `${task.categoryId} ${category?.code ?? ''} ${category?.name ?? ''}`.toLowerCase();
+  if (text.includes('frontend') || text.includes('前端') || text.includes('web') || text.includes('client')) return 'frontend';
+  if (
+    text.includes('backend') ||
+    text.includes('server') ||
+    text.includes('api') ||
+    text.includes('database') ||
+    text.includes('db') ||
+    text.includes('后端') ||
+    text.includes('接口') ||
+    text.includes('数据库')
+  ) return 'backend';
+  return undefined;
+}
+
+function getScopedDevTaskHours(devTasks: DevTask[], categories: TaskCategory[]): Pick<Record<RecommendableRole, number>, 'frontend' | 'backend'> {
+  const hours = { frontend: 0, backend: 0 };
+  for (const task of devTasks) {
+    const estimate = Math.max(getEstimateHours(task), 2);
+    const role = inferDevTaskScopeRole(task, categories);
+    if (role === 'frontend' || role === 'backend') {
+      hours[role] += estimate;
+    } else {
+      hours.frontend += estimate / 2;
+      hours.backend += estimate / 2;
+    }
+  }
+  return hours;
+}
+
+function getScopedTestCaseHours(testCases: TestCase[]): number {
+  return testCases.reduce((sum, testCase) => sum + Math.max(getTestCaseEstimateHours(testCase), 1), 0);
+}
+
+function getRoleRecommendationDemand(input: MemberRecommendationInput, scoped: boolean): Record<RecommendableRole, Omit<MemberRecommendationGroup, 'items'>> {
+  const currentCounts = countCurrentMembersByRole(input.currentMembers);
+  const hours: Record<RecommendableRole, number> = { frontend: 0, backend: 0, testing: 0 };
+  const scopeRequirements = input.scopeRequirements ?? [];
+  const scopeDevTasks = input.scopeDevTasks ?? [];
+  const scopeTestCases = input.scopeTestCases ?? [];
+  const taskCategories = input.taskCategories ?? [];
+  const requirementHours = getRequirementScopeHours(scopeRequirements);
+
+  if (scopeDevTasks.length > 0) {
+    const devHours = getScopedDevTaskHours(scopeDevTasks, taskCategories);
+    hours.frontend = devHours.frontend;
+    hours.backend = devHours.backend;
+  } else if (scopeRequirements.length > 0) {
+    hours.frontend = requirementHours.frontend;
+    hours.backend = requirementHours.backend;
+  }
+
+  if (scopeTestCases.length > 0) {
+    hours.testing = getScopedTestCaseHours(scopeTestCases);
+  } else if (scopeRequirements.length > 0) {
+    hours.testing = requirementHours.testing;
+  }
+
+  return ROLE_ORDER.reduce((acc, role) => {
+    const requiredCount = scoped && hours[role] > 0
+      ? Math.max(1, Math.ceil(hours[role] / AI_ASSISTED_ROLE_CAPACITY_HOURS[role]))
+      : 0;
+    const currentCount = currentCounts[role];
+    acc[role] = {
+      role,
+      requiredCount,
+      currentCount,
+      missingCount: scoped ? Math.max(0, requiredCount - currentCount) : 0,
+      scopeHours: roundTenth(hours[role]),
+    };
+    return acc;
+  }, {} as Record<RecommendableRole, Omit<MemberRecommendationGroup, 'items'>>);
+}
+
+export function recommendVersionMembers(input: MemberRecommendationInput): MemberRecommendationGroup[] {
+  const currentMemberNames = new Set(input.currentMembers.map((member) => member.name));
+  const statsByName = new Map((input.historicalStats ?? []).map((stats) => [stats.name, stats]));
+  const deadline = input.versionDeadline;
+  const scoped = hasScopedDemandInput(input);
+  const demandByRole = getRoleRecommendationDemand(input, scoped);
+
+  const items = input.candidates
+    .filter((candidate) => !currentMemberNames.has(candidate.name))
+    .map((candidate): MemberRecommendationItem | null => {
+      const role = inferRecommendableRole(candidate);
+      if (!role) return null;
+
+      const activeDevTasks = input.devTasks.filter((task) => task.assigneeId === candidate.name && !isTerminalDevTask(task));
+      const activeTestCases = input.testCases.filter((testCase) => testCase.assigneeId === candidate.name && !isTerminalTestCase(testCase));
+      const activeBugs = input.bugs.filter((bug) => bug.assigneeId === candidate.name && !isTerminalBug(bug));
+      const activeTaskCount = activeDevTasks.length + activeTestCases.length;
+      const activeBugCount = activeBugs.length;
+      const deadlineConflictCount = activeDevTasks.filter((task) => isAfterDeadline(task.expectedEndAt, deadline)).length;
+      const remainingHours = roundTenth(
+        activeDevTasks.reduce((sum, task) => sum + getDevTaskRemainingHours(task), 0) +
+        activeTestCases.reduce((sum, testCase) => sum + getTestCaseRemainingHours(testCase), 0) +
+        activeBugs.reduce((sum, bug) => sum + getBugRemainingHours(bug), 0),
+      );
+      const activeBugWeight = activeBugs.reduce((sum, bug) => sum + (BUG_SEVERITY_WEIGHT[bug.severity] ?? 1), 0);
+      const recentOvertimeHours = roundTenth(
+        (input.overtimeRecords ?? [])
+          .filter((record) => record.person === candidate.name)
+          .reduce((sum, record) => sum + record.duration, 0),
+      );
+      const stats = statsByName.get(candidate.name);
+      const projectParticipationCount = stats?.projectParticipationCount;
+      const bugRate = getHistoricalBugRate(stats);
+      const confidence = getConfidence(candidate, stats, activeTaskCount > 0 || activeBugCount > 0 || recentOvertimeHours > 0);
+
+      const reasons: string[] = [`部门匹配${role === 'frontend' ? '前端' : role === 'backend' ? '后端' : '测试'}角色`];
+      const warnings: string[] = [];
+      let score = 65;
+
+      if (activeTaskCount === 0 && activeBugCount === 0) {
+        score += 18;
+        reasons.push('当前无进行中任务，空闲度高');
+      } else {
+        score -= Math.min(35, activeTaskCount * 6 + activeBugCount * 5 + remainingHours * 1.2);
+        reasons.push(`当前 ${activeTaskCount + activeBugCount} 个进行中事项，剩余约 ${remainingHours}h`);
+      }
+
+      if (deadlineConflictCount > 0) {
+        score -= 20;
+        warnings.push(`${deadlineConflictCount} 个任务预计截止晚于当前版本`);
+      }
+
+      if (activeBugCount > 0) {
+        score -= Math.min(15, activeBugWeight * 3);
+        warnings.push(`当前有 ${activeBugCount} 个未关闭 Bug`);
+      }
+
+      if (typeof projectParticipationCount === 'number' && projectParticipationCount > 0) {
+        score += Math.min(15, projectParticipationCount * 3);
+        reasons.push(`历史参与项目 ${projectParticipationCount} 次`);
+      }
+
+      if (typeof bugRate === 'number') {
+        score -= Math.min(22, bugRate * 30);
+        if (bugRate <= 0.2) reasons.push('历史 Bug 率较低');
+        if (bugRate >= 0.5) warnings.push('历史 Bug 率偏高');
+      }
+
+      if (typeof stats?.delayRate === 'number' && stats.delayRate > 0.2) {
+        score -= Math.min(12, stats.delayRate * 30);
+        warnings.push('历史延期率偏高');
+      }
+
+      if (recentOvertimeHours >= 8) {
+        score -= 8;
+        warnings.push('近期加班较多');
+      }
+
+      const metrics: MemberRecommendationMetrics = {
+        activeTaskCount,
+        activeBugCount,
+        deadlineConflictCount,
+        remainingHours,
+        recentOvertimeHours,
+        projectParticipationCount,
+        bugRate,
+        availableInDays: remainingHours > 0 ? Math.ceil(remainingHours / 8) : 0,
+      };
+
+      return {
+        name: candidate.name,
+        role,
+        score: clampScore(score),
+        confidence,
+        reasons,
+        warnings,
+        metrics,
+      };
+    })
+    .filter((item): item is MemberRecommendationItem => Boolean(item));
+
+  return ROLE_ORDER
+    .map((role) => {
+      const roleItems = items
+        .filter((item) => item.role === role)
+        .sort((a, b) => b.score - a.score || a.metrics.remainingHours - b.metrics.remainingHours || a.name.localeCompare(b.name));
+      const demand = demandByRole[role];
+      const missingCount = scoped ? demand.missingCount : roleItems.length;
+      return {
+        ...demand,
+        requiredCount: scoped ? demand.requiredCount : demand.currentCount + roleItems.length,
+        missingCount,
+        items: roleItems.slice(0, missingCount),
+      };
+    })
+    .filter((group) => group.items.length > 0);
+}
+
+export function addRecommendedVersionMembers(
+  currentMembers: VersionMember[],
+  selectedNames: Iterable<string>,
+  recommendations: MemberRecommendationItem[],
+): VersionMember[] {
+  const existingNames = new Set(currentMembers.map((member) => member.name));
+  const selectedNameSet = new Set(selectedNames);
+  const additions = recommendations
+    .filter((item) => selectedNameSet.has(item.name) && !existingNames.has(item.name))
+    .map((item) => ({ name: item.name, role: item.role }));
+
+  return [...currentMembers, ...additions];
+}
+
+export function getDefaultRecommendedMemberNames(groups: MemberRecommendationGroup[]): string[] {
+  return groups.flatMap((group) => group.items.map((item) => item.name));
+}
diff --git a/apps/web/lib/server-data.ts b/apps/web/lib/server-data.ts
index 41d1730..608886f 100644
--- a/apps/web/lib/server-data.ts
+++ b/apps/web/lib/server-data.ts
@@ -10,6 +10,7 @@ export type ServerDataKey =
   | 'members'
   | 'task-categories'
   | 'task-worklogs'
+  | 'work-activities'
   | 'overtime';
 
 interface ServerDataResponse<T> {
diff --git a/apps/web/lib/work-activity-factory.test.ts b/apps/web/lib/work-activity-factory.test.ts
new file mode 100644
index 0000000..5651980
--- /dev/null
+++ b/apps/web/lib/work-activity-factory.test.ts
@@ -0,0 +1,130 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import type { Bug } from './bug';
+import type { DevTask } from './dev-task';
+import type { TestCase } from './test-case';
+import type { VersionPlan } from './version-plan';
+import {
+  makeBugStatusActivity,
+  makeDevTaskStatusActivity,
+  makeTestCaseStatusActivity,
+  makeVersionPlanCompletedActivity,
+} from './work-activity-factory';
+
+function devTask(patch: Partial<DevTask> = {}): DevTask {
+  return {
+    id: 'task-1',
+    taskNo: 'DEV-001',
+    requirementId: 'req-1',
+    title: '实现登录接口',
+    categoryId: 'cat-1',
+    assigneeId: '张三',
+    priority: 'P2',
+    expectedStartAt: '2026-06-26T01:00',
+    expectedEndAt: '2026-06-26T09:00',
+    status: 'todo',
+    isBlocked: false,
+    createdBy: '张三',
+    createdAt: '2026-06-26T01:00:00.000Z',
+    updatedAt: '2026-06-26T01:00:00.000Z',
+    ...patch,
+  };
+}
+
+function plan(patch: Partial<VersionPlan> = {}): VersionPlan {
+  return {
+    id: 'plan-1',
+    versionId: 'version-1',
+    type: 'product',
+    title: '提交产品方案',
+    owner: '张三',
+    startTime: '2026-06-26T01:00',
+    endTime: '2026-06-26T09:00',
+    status: 'in_progress',
+    createdAt: '2026-06-26',
+    addedBy: '张三',
+    ...patch,
+  };
+}
+
+function bug(patch: Partial<Bug> = {}): Bug {
+  return {
+    id: 'bug-1',
+    bugNo: 'BUG-001',
+    versionId: 'version-1',
+    testCaseId: 'case-1',
+    title: '修复菜单错位',
+    description: '菜单在窄屏错位',
+    severity: 'major',
+    priority: 'P1',
+    reportedBy: '李四',
+    assigneeId: '张三',
+    status: 'fixing',
+    createdAt: '2026-06-26T01:00:00.000Z',
+    updatedAt: '2026-06-26T01:00:00.000Z',
+    ...patch,
+  };
+}
+
+function testCase(patch: Partial<TestCase> = {}): TestCase {
+  return {
+    id: 'tc-1',
+    caseNo: 'TC-001',
+    versionId: 'version-1',
+    title: '验证登录流程',
+    categoryId: 'cat-test',
+    priority: 'P2',
+    assigneeId: '张三',
+    status: 'pending',
+    createdBy: '张三',
+    createdAt: '2026-06-26T01:00:00.000Z',
+    updatedAt: '2026-06-26T01:00:00.000Z',
+    ...patch,
+  };
+}
+
+test('makeDevTaskStatusActivity maps started and submitted actions', () => {
+  const started = makeDevTaskStatusActivity(devTask(), 'todo', 'in_progress', '张三');
+  const submitted = makeDevTaskStatusActivity(devTask({ status: 'testing' }), 'testing', 'submitted', '张三');
+
+  assert.equal(started?.action, 'dev_task_started');
+  assert.equal(started?.category, 'progress');
+  assert.equal(started?.summary, '开始开发：实现登录接口');
+  assert.equal(submitted?.action, 'dev_task_submitted');
+  assert.equal(submitted?.category, 'delivery');
+  assert.equal(submitted?.summary, '已提测开发任务：实现登录接口');
+});
+
+test('makeVersionPlanCompletedActivity marks product plan completion as delivery', () => {
+  const activity = makeVersionPlanCompletedActivity(plan(), '张三');
+
+  assert.equal(activity.action, 'version_plan_completed');
+  assert.equal(activity.category, 'delivery');
+  assert.equal(activity.sourceType, 'version_plan');
+  assert.equal(activity.summary, '完成产品方案：提交产品方案');
+});
+
+test('makeBugStatusActivity maps fixing and fixed actions', () => {
+  const fixing = makeBugStatusActivity(bug({ status: 'open' }), 'open', 'fixing', '张三');
+  const fixed = makeBugStatusActivity(bug(), 'fixing', 'fixed', '张三');
+
+  assert.equal(fixing?.action, 'bug_fixing');
+  assert.equal(fixing?.category, 'progress');
+  assert.equal(fixing?.summary, '开始修复 Bug：修复菜单错位');
+  assert.equal(fixed?.action, 'bug_fixed');
+  assert.equal(fixed?.category, 'delivery');
+  assert.equal(fixed?.summary, '已修复 Bug：修复菜单错位');
+});
+
+test('makeTestCaseStatusActivity maps running and passed actions', () => {
+  const running = makeTestCaseStatusActivity(testCase(), 'pending', 'running', '张三');
+  const passed = makeTestCaseStatusActivity(testCase({ status: 'running' }), 'running', 'passed', '张三');
+
+  assert.equal(running?.action, 'test_case_started');
+  assert.equal(running?.category, 'progress');
+  assert.equal(running?.summary, '开始测试：验证登录流程');
+  assert.equal(passed?.action, 'test_case_passed');
+  assert.equal(passed?.category, 'delivery');
+  assert.equal(passed?.summary, '测试通过：验证登录流程');
+});
diff --git a/apps/web/lib/work-activity-factory.ts b/apps/web/lib/work-activity-factory.ts
new file mode 100644
index 0000000..3eb88ae
--- /dev/null
+++ b/apps/web/lib/work-activity-factory.ts
@@ -0,0 +1,270 @@
+import type { Bug, BugStatus } from './bug';
+import type { DevTask, DevTaskStatus } from './dev-task';
+import type { TestCase, TestCaseStatus } from './test-case';
+import type { VersionPlan } from './version-plan';
+import type { WorkActivityDraft } from './work-activity';
+
+const PLAN_TYPE_LABEL: Record<VersionPlan['type'], string> = {
+  research: '调研',
+  product: '产品方案',
+  ui: 'UI设计',
+};
+
+export function makeVersionPlanCreatedActivity(plan: VersionPlan, actorId: string): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'version_plan',
+    sourceId: plan.id,
+    action: 'version_plan_created',
+    category: 'creation',
+    title: plan.title,
+    summary: `新建${PLAN_TYPE_LABEL[plan.type]}：${plan.title}`,
+  };
+}
+
+export function makeVersionPlanStartedActivity(plan: VersionPlan, actorId: string): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'version_plan',
+    sourceId: plan.id,
+    action: 'version_plan_started',
+    category: 'progress',
+    title: plan.title,
+    summary: `开始${PLAN_TYPE_LABEL[plan.type]}：${plan.title}`,
+  };
+}
+
+export function makeVersionPlanCompletedActivity(plan: VersionPlan, actorId: string): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'version_plan',
+    sourceId: plan.id,
+    action: 'version_plan_completed',
+    category: 'delivery',
+    title: plan.title,
+    summary: `完成${PLAN_TYPE_LABEL[plan.type]}：${plan.title}`,
+  };
+}
+
+export function makeDevTaskCreatedActivity(task: DevTask, actorId: string): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'dev_task',
+    sourceId: task.id,
+    action: 'dev_task_created',
+    category: 'creation',
+    title: task.title,
+    summary: `新建开发任务：${task.title}`,
+  };
+}
+
+export function makeDevTaskStatusActivity(
+  task: DevTask,
+  fromStatus: DevTaskStatus,
+  toStatus: DevTaskStatus,
+  actorId: string,
+): WorkActivityDraft | undefined {
+  const base = {
+    actorId,
+    sourceType: 'dev_task' as const,
+    sourceId: task.id,
+    title: task.title,
+    metadata: { fromStatus, toStatus },
+  };
+
+  if (toStatus === 'in_progress') {
+    return {
+      ...base,
+      action: 'dev_task_started',
+      category: 'progress',
+      summary: `开始开发：${task.title}`,
+    };
+  }
+
+  if (toStatus === 'testing') {
+    return {
+      ...base,
+      action: 'dev_task_self_testing',
+      category: 'progress',
+      summary: `进入自测：${task.title}`,
+    };
+  }
+
+  if (toStatus === 'submitted') {
+    return {
+      ...base,
+      action: 'dev_task_submitted',
+      category: 'delivery',
+      summary: `已提测开发任务：${task.title}`,
+    };
+  }
+
+  return undefined;
+}
+
+export function makeDevTaskBlockedActivity(
+  task: DevTask,
+  actorId: string,
+  reason?: string,
+  helperId?: string,
+): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'dev_task',
+    sourceId: task.id,
+    action: 'dev_task_blocked',
+    category: 'risk',
+    title: task.title,
+    summary: `标记阻塞：${reason?.trim() || task.title}`,
+    metadata: {
+      blocker: reason?.trim() || undefined,
+      helperId: helperId?.trim() || undefined,
+    },
+  };
+}
+
+export function makeDevTaskUnblockedActivity(task: DevTask, actorId: string): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'dev_task',
+    sourceId: task.id,
+    action: 'dev_task_unblocked',
+    category: 'progress',
+    title: task.title,
+    summary: `解除阻塞：${task.title}`,
+  };
+}
+
+export function makeBugCreatedActivity(bug: Bug, actorId: string): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'bug',
+    sourceId: bug.id,
+    action: 'bug_created',
+    category: 'creation',
+    title: bug.title,
+    summary: `新建 Bug：${bug.title}`,
+  };
+}
+
+export function makeTestCaseCreatedActivity(testCase: TestCase, actorId: string): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'test_case',
+    sourceId: testCase.id,
+    action: 'test_case_created',
+    category: 'creation',
+    title: testCase.title,
+    summary: `新建测试用例：${testCase.title}`,
+  };
+}
+
+export function makeTestCaseStatusActivity(
+  testCase: TestCase,
+  fromStatus: TestCaseStatus,
+  toStatus: TestCaseStatus,
+  actorId: string,
+): WorkActivityDraft | undefined {
+  const base = {
+    actorId,
+    sourceType: 'test_case' as const,
+    sourceId: testCase.id,
+    title: testCase.title,
+    metadata: { fromStatus, toStatus },
+  };
+
+  if (toStatus === 'running') {
+    return {
+      ...base,
+      action: 'test_case_started',
+      category: 'progress',
+      summary: `开始测试：${testCase.title}`,
+    };
+  }
+
+  if (toStatus === 'passed') {
+    return {
+      ...base,
+      action: 'test_case_passed',
+      category: 'delivery',
+      summary: `测试通过：${testCase.title}`,
+    };
+  }
+
+  if (toStatus === 'failed') {
+    return {
+      ...base,
+      action: 'test_case_failed',
+      category: 'risk',
+      summary: `测试不通过：${testCase.title}`,
+    };
+  }
+
+  if (toStatus === 'blocked') {
+    return {
+      ...base,
+      action: 'test_case_blocked',
+      category: 'risk',
+      summary: `测试阻塞：${testCase.title}`,
+    };
+  }
+
+  return undefined;
+}
+
+export function makeBugStatusActivity(
+  bug: Bug,
+  fromStatus: BugStatus,
+  toStatus: BugStatus,
+  actorId: string,
+): WorkActivityDraft | undefined {
+  const base = {
+    actorId,
+    sourceType: 'bug' as const,
+    sourceId: bug.id,
+    title: bug.title,
+    metadata: { fromStatus, toStatus },
+  };
+
+  if (toStatus === 'fixing') {
+    return {
+      ...base,
+      action: 'bug_fixing',
+      category: 'progress',
+      summary: `开始修复 Bug：${bug.title}`,
+    };
+  }
+
+  if (toStatus === 'fixed') {
+    return {
+      ...base,
+      action: 'bug_fixed',
+      category: 'delivery',
+      summary: `已修复 Bug：${bug.title}`,
+    };
+  }
+
+  if (toStatus === 'closed') {
+    return {
+      ...base,
+      action: 'bug_closed',
+      category: 'delivery',
+      summary: `已关闭 Bug：${bug.title}`,
+    };
+  }
+
+  return undefined;
+}
+
+export function makeBugTransferredActivity(bug: Bug, actorId: string, toAssigneeId: string): WorkActivityDraft {
+  return {
+    actorId,
+    sourceType: 'bug',
+    sourceId: bug.id,
+    action: 'bug_transferred',
+    category: 'progress',
+    title: bug.title,
+    summary: `转交 Bug：${bug.title} → ${toAssigneeId}`,
+    metadata: { toAssigneeId },
+  };
+}
diff --git a/apps/web/lib/work-activity.test.ts b/apps/web/lib/work-activity.test.ts
new file mode 100644
index 0000000..1cf1af7
--- /dev/null
+++ b/apps/web/lib/work-activity.test.ts
@@ -0,0 +1,33 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+
+import type { WorkActivity } from './work-activity';
+import { mergeWorkActivities } from './work-activity';
+
+function activity(id: string, summary: string): WorkActivity {
+  return {
+    id,
+    actorId: '张三',
+    date: '2026-06-26',
+    occurredAt: `2026-06-26T0${id.length}:00:00.000Z`,
+    sourceType: 'dev_task',
+    sourceId: id,
+    action: 'dev_task_started',
+    category: 'progress',
+    title: summary,
+    summary,
+  };
+}
+
+test('mergeWorkActivities preserves remote records and appends local records', () => {
+  const merged = mergeWorkActivities([activity('act-1', '远端记录')], [activity('act-2', '本地新增')]);
+
+  assert.deepEqual(merged.map((item) => item.id), ['act-1', 'act-2']);
+});
+
+test('mergeWorkActivities lets newer local records replace the same id', () => {
+  const merged = mergeWorkActivities([activity('act-1', '远端旧记录')], [activity('act-1', '本地新记录')]);
+
+  assert.equal(merged.length, 1);
+  assert.equal(merged[0].summary, '本地新记录');
+});
diff --git a/apps/web/lib/work-activity.ts b/apps/web/lib/work-activity.ts
new file mode 100644
index 0000000..2b546d6
--- /dev/null
+++ b/apps/web/lib/work-activity.ts
@@ -0,0 +1,69 @@
+export type WorkActivitySourceType = 'version_plan' | 'dev_task' | 'test_case' | 'bug' | 'manual';
+
+export type WorkActivityCategory = 'delivery' | 'progress' | 'creation' | 'risk' | 'note';
+
+export type WorkActivityAction =
+  | 'version_plan_created'
+  | 'version_plan_started'
+  | 'version_plan_completed'
+  | 'dev_task_created'
+  | 'dev_task_started'
+  | 'dev_task_self_testing'
+  | 'dev_task_submitted'
+  | 'dev_task_blocked'
+  | 'dev_task_unblocked'
+  | 'dev_task_transferred'
+  | 'test_case_created'
+  | 'test_case_started'
+  | 'test_case_passed'
+  | 'test_case_failed'
+  | 'test_case_blocked'
+  | 'bug_created'
+  | 'bug_fixing'
+  | 'bug_fixed'
+  | 'bug_closed'
+  | 'bug_blocked'
+  | 'bug_transferred'
+  | 'progress_note_added';
+
+export interface WorkActivity {
+  id: string;
+  actorId: string;
+  date: string;
+  occurredAt: string;
+  sourceType: WorkActivitySourceType;
+  sourceId: string;
+  action: WorkActivityAction;
+  category: WorkActivityCategory;
+  title: string;
+  summary: string;
+  metadata?: {
+    fromStatus?: string;
+    toStatus?: string;
+    note?: string;
+    blocker?: string;
+    helperId?: string;
+    delayRisk?: string;
+    [key: string]: unknown;
+  };
+}
+
+export type WorkActivityDraft = Omit<WorkActivity, 'id' | 'date' | 'occurredAt'> & {
+  date?: string;
+  occurredAt?: string;
+};
+
+export const WORK_ACTIVITY_CATEGORY_LABEL: Record<WorkActivityCategory, string> = {
+  delivery: '今日交付',
+  progress: '今日推进',
+  creation: '今日新增',
+  risk: '风险/阻塞',
+  note: '进展说明',
+};
+
+export function mergeWorkActivities(remote: WorkActivity[] = [], local: WorkActivity[] = []): WorkActivity[] {
+  const byId = new Map<string, WorkActivity>();
+  for (const item of remote) byId.set(item.id, item);
+  for (const item of local) byId.set(item.id, item);
+  return Array.from(byId.values()).sort((a, b) => a.occurredAt.localeCompare(b.occurredAt));
+}
diff --git a/apps/web/lib/workspace-daily-report.test.ts b/apps/web/lib/workspace-daily-report.test.ts
index ed19733..1df424b 100644
--- a/apps/web/lib/workspace-daily-report.test.ts
+++ b/apps/web/lib/workspace-daily-report.test.ts
@@ -2,6 +2,7 @@ import test from 'node:test';
 import assert from 'node:assert/strict';
 
 import type { TaskWorklog } from './task-worklog';
+import type { WorkActivity } from './work-activity';
 import type { WorkItem } from './workspace-engine';
 import { getWorkspaceDailyReport } from './workspace-daily-report';
 
@@ -16,6 +17,7 @@ const workItems: WorkItem[] = [
     projectName: '项目管理',
     versionName: 'V1.0',
     versionId: 'version-1',
+    extra: { actualStartAt: '2026-06-26T01:00:00.000Z' },
     raw: {} as any,
   },
   {
@@ -30,6 +32,19 @@ const workItems: WorkItem[] = [
     versionId: 'version-1',
     raw: {} as any,
   },
+  {
+    id: 'task-3',
+    type: 'devTask',
+    title: '跨天开发任务',
+    status: 'in_progress',
+    completed: false,
+    productName: 'FTB',
+    projectName: '项目管理',
+    versionName: 'V1.0',
+    versionId: 'version-1',
+    extra: { actualStartAt: '2026-06-25T02:00:00.000Z' },
+    raw: {} as any,
+  },
 ];
 
 const worklogs: TaskWorklog[] = [
@@ -71,6 +86,71 @@ const worklogs: TaskWorklog[] = [
   },
 ];
 
+const activities: WorkActivity[] = [
+  {
+    id: 'act-delivery',
+    actorId: '张三',
+    date: '2026-06-26',
+    occurredAt: '2026-06-26T06:00:00.000Z',
+    sourceType: 'dev_task',
+    sourceId: 'task-1',
+    action: 'dev_task_submitted',
+    category: 'delivery',
+    title: '实现登录接口',
+    summary: '已提测开发任务：实现登录接口',
+  },
+  {
+    id: 'act-risk',
+    actorId: '张三',
+    date: '2026-06-26',
+    occurredAt: '2026-06-26T05:00:00.000Z',
+    sourceType: 'bug',
+    sourceId: 'task-2',
+    action: 'bug_blocked',
+    category: 'risk',
+    title: '修复菜单错位',
+    summary: '标记阻塞：等待设计确认',
+    metadata: { blocker: '等待设计确认', helperId: '李四' },
+  },
+  {
+    id: 'act-note',
+    actorId: '张三',
+    date: '2026-06-26',
+    occurredAt: '2026-06-26T04:30:00.000Z',
+    sourceType: 'manual',
+    sourceId: 'task-1',
+    action: 'progress_note_added',
+    category: 'note',
+    title: '实现登录接口',
+    summary: '补充进展：完成接口联调',
+    metadata: { note: '完成接口联调' },
+  },
+  {
+    id: 'act-other-user',
+    actorId: '李四',
+    date: '2026-06-26',
+    occurredAt: '2026-06-26T07:00:00.000Z',
+    sourceType: 'dev_task',
+    sourceId: 'task-1',
+    action: 'dev_task_started',
+    category: 'progress',
+    title: '其他人的任务',
+    summary: '其他人的日报活动',
+  },
+  {
+    id: 'act-other-date',
+    actorId: '张三',
+    date: '2026-06-25',
+    occurredAt: '2026-06-25T07:00:00.000Z',
+    sourceType: 'dev_task',
+    sourceId: 'task-1',
+    action: 'dev_task_started',
+    category: 'progress',
+    title: '昨天的任务',
+    summary: '昨天的日报活动',
+  },
+];
+
 test('getWorkspaceDailyReport filters by current user and date', () => {
   const report = getWorkspaceDailyReport({
     worklogs,
@@ -121,3 +201,32 @@ test('getWorkspaceDailyReport keeps logs whose task is no longer visible', () =>
   assert.equal(report.items[0].taskTitle, '未知任务');
   assert.equal(report.items[0].workContent, '处理历史任务');
 });
+
+test('getWorkspaceDailyReport groups current user activities by category', () => {
+  const report = getWorkspaceDailyReport({
+    activities,
+    worklogs,
+    workItems,
+    userId: '张三',
+    date: '2026-06-26',
+  });
+
+  assert.deepEqual(report.groups.delivery.map((item) => item.id), ['act-delivery']);
+  assert.deepEqual(report.groups.risk.map((item) => item.id), ['act-risk']);
+  assert.deepEqual(report.groups.note.map((item) => item.id), ['act-note']);
+  assert.equal(report.totalCount, 5);
+  assert.equal(report.groups.delivery[0].context, 'FTB / 项目管理 / V1.0');
+});
+
+test('getWorkspaceDailyReport flags multi-day in-progress items without today progress', () => {
+  const report = getWorkspaceDailyReport({
+    activities,
+    worklogs,
+    workItems,
+    userId: '张三',
+    date: '2026-06-26',
+  });
+
+  assert.deepEqual(report.needsProgressItems.map((item) => item.id), ['task-3']);
+  assert.equal(report.needsProgressItems[0].title, '跨天开发任务');
+});
diff --git a/apps/web/lib/workspace-daily-report.ts b/apps/web/lib/workspace-daily-report.ts
index eb6d343..9254114 100644
--- a/apps/web/lib/workspace-daily-report.ts
+++ b/apps/web/lib/workspace-daily-report.ts
@@ -1,4 +1,5 @@
 import type { TaskWorklog } from './task-worklog';
+import type { WorkActivity, WorkActivityCategory } from './work-activity';
 import type { WorkItem } from './workspace-engine';
 
 export interface WorkspaceDailyReportItem {
@@ -13,14 +14,40 @@ export interface WorkspaceDailyReportItem {
   versionName?: string;
 }
 
+export interface WorkspaceDailyReportActivityItem {
+  id: string;
+  sourceId: string;
+  sourceType: WorkActivity['sourceType'];
+  action: WorkActivity['action'];
+  category: WorkActivityCategory;
+  title: string;
+  summary: string;
+  occurredAt: string;
+  context?: string;
+  metadata?: WorkActivity['metadata'];
+}
+
+export interface WorkspaceDailyReportNeedsProgressItem {
+  id: string;
+  title: string;
+  status: string;
+  type: WorkItem['type'];
+  context?: string;
+}
+
+export type WorkspaceDailyReportGroups = Record<WorkActivityCategory, WorkspaceDailyReportActivityItem[]>;
+
 export interface WorkspaceDailyReport {
   date: string;
   totalHours: number;
   totalCount: number;
   items: WorkspaceDailyReportItem[];
+  groups: WorkspaceDailyReportGroups;
+  needsProgressItems: WorkspaceDailyReportNeedsProgressItem[];
 }
 
 interface GetWorkspaceDailyReportInput {
+  activities?: WorkActivity[];
   worklogs: TaskWorklog[];
   workItems: WorkItem[];
   userId: string;
@@ -28,6 +55,7 @@ interface GetWorkspaceDailyReportInput {
 }
 
 export function getWorkspaceDailyReport({
+  activities = [],
   worklogs,
   workItems,
   userId,
@@ -54,10 +82,85 @@ export function getWorkspaceDailyReport({
       };
     });
 
+  const dailyActivities = activities
+    .filter((activity) => activity.actorId === userId && activity.date === date)
+    .sort((a, b) => b.occurredAt.localeCompare(a.occurredAt));
+
+  const groups = makeEmptyGroups();
+  for (const activity of dailyActivities) {
+    const item = workItemMap.get(activity.sourceId);
+    groups[activity.category].push({
+      id: activity.id,
+      sourceId: activity.sourceId,
+      sourceType: activity.sourceType,
+      action: activity.action,
+      category: activity.category,
+      title: activity.title,
+      summary: activity.summary,
+      occurredAt: activity.occurredAt,
+      context: getContext(item),
+      metadata: activity.metadata,
+    });
+  }
+
+  const touchedSourceIds = new Set([
+    ...dailyActivities.map((activity) => activity.sourceId),
+    ...items.map((item) => item.taskId),
+  ]);
+
+  const needsProgressItems = workItems
+    .filter((item) => shouldRequireProgress(item, date, touchedSourceIds))
+    .map((item) => ({
+      id: item.id,
+      title: item.title,
+      status: item.status,
+      type: item.type,
+      context: getContext(item),
+    }));
+
   return {
     date,
     totalHours: items.reduce((sum, item) => sum + item.hours, 0),
-    totalCount: items.length,
+    totalCount: items.length + dailyActivities.length,
     items,
+    groups,
+    needsProgressItems,
   };
 }
+
+function makeEmptyGroups(): WorkspaceDailyReportGroups {
+  return {
+    delivery: [],
+    progress: [],
+    creation: [],
+    risk: [],
+    note: [],
+  };
+}
+
+function getContext(item?: WorkItem): string | undefined {
+  if (!item) return undefined;
+  return [item.productName, item.projectName, item.versionName].filter(Boolean).join(' / ');
+}
+
+function shouldRequireProgress(item: WorkItem, date: string, touchedSourceIds: Set<string>): boolean {
+  if (item.completed) return false;
+  if (touchedSourceIds.has(item.id)) return false;
+  if (!isInProgressStatus(item.status)) return false;
+
+  const startedAt = getStartedAt(item);
+  if (!startedAt) return false;
+  return startedAt.slice(0, 10) < date;
+}
+
+function isInProgressStatus(status: string): boolean {
+  return ['in_progress', 'testing', 'running', 'fixing', 'verifying'].includes(status);
+}
+
+function getStartedAt(item: WorkItem): string | undefined {
+  const extra = item.extra ?? {};
+  if (typeof extra.actualStartAt === 'string') return extra.actualStartAt;
+  if (typeof extra.startedAt === 'string') return extra.startedAt;
+  if (typeof extra.startTime === 'string') return extra.startTime;
+  return undefined;
+}
diff --git a/apps/web/stores/useBugStore.ts b/apps/web/stores/useBugStore.ts
index b67d51b..38ea781 100644
--- a/apps/web/stores/useBugStore.ts
+++ b/apps/web/stores/useBugStore.ts
@@ -4,6 +4,12 @@ import type { Bug, BugStatus, BugLog } from '@/lib/bug';
 import { generateBugNo } from '@/lib/bug';
 import { applyBugTransition } from '@/lib/bug-workflow';
 import { loadServerData, saveServerData } from '@/lib/server-data';
+import {
+  makeBugCreatedActivity,
+  makeBugStatusActivity,
+  makeBugTransferredActivity,
+} from '@/lib/work-activity-factory';
+import { useWorkActivityStore } from './useWorkActivityStore';
 
 function saveStored(items: Bug[]) {
   saveServerData('bugs', items).catch(() => {});
@@ -57,6 +63,7 @@ export const useBugStore = create<BugState>((set, get) => ({
     const updated = [...list, bug];
     set({ bugs: updated });
     saveStored(updated);
+    useWorkActivityStore.getState().addActivity(makeBugCreatedActivity(bug, operator));
     return bug;
   },
 
@@ -83,6 +90,8 @@ export const useBugStore = create<BugState>((set, get) => ({
     });
     if (!result.ok || !result.patch) return { ok: false, message: result.message };
     get().updateBug(id, result.patch);
+    const activity = makeBugStatusActivity(bug, bug.status, to, operator);
+    if (activity) useWorkActivityStore.getState().addActivity(activity);
     return { ok: true };
   },
 
@@ -92,6 +101,7 @@ export const useBugStore = create<BugState>((set, get) => ({
     if (bug.assigneeId === newAssigneeId) return { ok: false, message: '已是当前负责人' };
     const log = makeLog('transfer', operator, bug.assigneeId, newAssigneeId, remark);
     get().updateBug(id, { assigneeId: newAssigneeId, logs: [...(bug.logs || []), log] });
+    useWorkActivityStore.getState().addActivity(makeBugTransferredActivity(bug, operator, newAssigneeId));
     return { ok: true };
   },
 
diff --git a/apps/web/stores/useDevTaskStore.ts b/apps/web/stores/useDevTaskStore.ts
index 3dfb9a7..b1c9d37 100644
--- a/apps/web/stores/useDevTaskStore.ts
+++ b/apps/web/stores/useDevTaskStore.ts
@@ -5,6 +5,13 @@ import { generateTaskNo, isLegacyTask } from '@/lib/dev-task';
 import { applyDevTaskTransition, normalizeDevTaskOnCreate } from '@/lib/dev-task-workflow';
 import { createEntityId, dedupeEntityIds } from '@/lib/entity-id';
 import { loadServerData, saveServerData } from '@/lib/server-data';
+import {
+  makeDevTaskBlockedActivity,
+  makeDevTaskCreatedActivity,
+  makeDevTaskStatusActivity,
+  makeDevTaskUnblockedActivity,
+} from '@/lib/work-activity-factory';
+import { useWorkActivityStore } from './useWorkActivityStore';
 
 function saveStored(items: DevTask[]) {
   saveServerData('dev-tasks', items).catch(() => {});
@@ -60,6 +67,7 @@ export const useDevTaskStore = create<DevTaskState>((set, get) => ({
     const updated = [...list, task];
     set({ tasks: updated });
     saveStored(updated);
+    useWorkActivityStore.getState().addActivity(makeDevTaskCreatedActivity(task, task.createdBy || task.assigneeId));
     return task;
   },
 
@@ -86,15 +94,23 @@ export const useDevTaskStore = create<DevTaskState>((set, get) => ({
     });
     if (!result.ok || !result.patch) return { ok: false, message: result.message };
     get().updateTask(id, result.patch);
+    const activity = makeDevTaskStatusActivity(task, task.status, to, task.assigneeId);
+    if (activity) useWorkActivityStore.getState().addActivity(activity);
     return { ok: true };
   },
 
   setBlocked: (id, blocked, reason, blockedById) => {
+    const task = get().tasks.find((t) => t.id === id);
+    if (!task) return;
     get().updateTask(id, {
       isBlocked: blocked,
       blockReason: blocked ? reason : undefined,
       blockedById: blocked ? blockedById : undefined,
     });
+    const activity = blocked
+      ? makeDevTaskBlockedActivity(task, task.assigneeId, reason, blockedById)
+      : makeDevTaskUnblockedActivity(task, task.assigneeId);
+    useWorkActivityStore.getState().addActivity(activity);
   },
 
   getByRequirement: (requirementId) => {
diff --git a/apps/web/stores/useTestCaseStore.ts b/apps/web/stores/useTestCaseStore.ts
index 58e94be..30b3ff4 100644
--- a/apps/web/stores/useTestCaseStore.ts
+++ b/apps/web/stores/useTestCaseStore.ts
@@ -5,6 +5,11 @@ import { generateCaseNo, normalizeTestCases } from '@/lib/test-case';
 import { applyTestCaseTransition, normalizeTestCaseOnCreate } from '@/lib/test-case-workflow';
 import { createEntityId, dedupeEntityIds } from '@/lib/entity-id';
 import { loadServerData, saveServerData } from '@/lib/server-data';
+import {
+  makeTestCaseCreatedActivity,
+  makeTestCaseStatusActivity,
+} from '@/lib/work-activity-factory';
+import { useWorkActivityStore } from './useWorkActivityStore';
 
 function saveStored(items: TestCase[]) {
   saveServerData('test-cases', items).catch(() => {});
@@ -56,6 +61,7 @@ export const useTestCaseStore = create<TestCaseState>((set, get) => ({
     const updated = [...list, tc];
     set({ testCases: updated });
     saveStored(updated);
+    useWorkActivityStore.getState().addActivity(makeTestCaseCreatedActivity(tc, tc.createdBy));
     return tc;
   },
 
@@ -78,6 +84,9 @@ export const useTestCaseStore = create<TestCaseState>((set, get) => ({
     }
     set({ testCases: list });
     saveStored(list);
+    created.forEach((tc) => {
+      useWorkActivityStore.getState().addActivity(makeTestCaseCreatedActivity(tc, tc.createdBy));
+    });
     return created;
   },
 
@@ -105,6 +114,9 @@ export const useTestCaseStore = create<TestCaseState>((set, get) => ({
     });
     if (!result.ok || !result.patch) return { ok: false, message: result.message };
     get().updateTestCase(id, result.patch);
+    const actorId = tc.assigneeId || tc.executedBy || tc.createdBy;
+    const activity = makeTestCaseStatusActivity(tc, tc.status, to, actorId);
+    if (activity) useWorkActivityStore.getState().addActivity(activity);
     return { ok: true };
   },
 
diff --git a/apps/web/stores/useVersionPlanStore.ts b/apps/web/stores/useVersionPlanStore.ts
index d2b3440..eb133d2 100644
--- a/apps/web/stores/useVersionPlanStore.ts
+++ b/apps/web/stores/useVersionPlanStore.ts
@@ -4,6 +4,12 @@ import type { VersionPlan, PlanType } from '@/lib/version-plan';
 import { loadServerData, saveServerData } from '@/lib/server-data';
 import { getPlanCompletionState } from '@/lib/version-plan-workflow';
 import type { PlanResultPayload } from '@/lib/version-plan-workflow';
+import {
+  makeVersionPlanCompletedActivity,
+  makeVersionPlanCreatedActivity,
+  makeVersionPlanStartedActivity,
+} from '@/lib/work-activity-factory';
+import { useWorkActivityStore } from './useWorkActivityStore';
 
 const MOCK_PLANS: VersionPlan[] = [];
 
@@ -40,10 +46,12 @@ export const useVersionPlanStore = create<VersionPlanState>((set, get) => ({
     const plans = [...get().plans, plan];
     set({ plans });
     saveStored(plans);
+    useWorkActivityStore.getState().addActivity(makeVersionPlanCreatedActivity(plan, plan.addedBy || plan.owner));
   },
 
   updatePlan: (id, data) => {
     const now = new Date().toISOString();
+    const activities: ReturnType<typeof makeVersionPlanStartedActivity>[] = [];
     const plans = get().plans.map((p) => {
       if (p.id !== id) return p;
       const patch = { ...data };
@@ -53,10 +61,18 @@ export const useVersionPlanStore = create<VersionPlanState>((set, get) => ({
       if (patch.status === 'completed' && !p.completedAt) {
         (patch as any).completedAt = now;
       }
-      return { ...p, ...patch };
+      const next = { ...p, ...patch };
+      if (p.status !== 'in_progress' && next.status === 'in_progress') {
+        activities.push(makeVersionPlanStartedActivity(next, next.owner));
+      }
+      if (p.status !== 'completed' && next.status === 'completed') {
+        activities.push(makeVersionPlanCompletedActivity(next, next.owner));
+      }
+      return next;
     });
     set({ plans });
     saveStored(plans);
+    activities.forEach((activity) => useWorkActivityStore.getState().addActivity(activity));
   },
 
   completePlan: (id, result) => {
@@ -70,6 +86,7 @@ export const useVersionPlanStore = create<VersionPlanState>((set, get) => ({
         return p;
       }
       response = { ok: true };
+      useWorkActivityStore.getState().addActivity(makeVersionPlanCompletedActivity(next, next.owner));
       return next;
     });
     set({ plans });
diff --git a/apps/web/stores/useWorkActivityStore.ts b/apps/web/stores/useWorkActivityStore.ts
new file mode 100644
index 0000000..001d8c6
--- /dev/null
+++ b/apps/web/stores/useWorkActivityStore.ts
@@ -0,0 +1,108 @@
+'use client';
+import { create } from 'zustand';
+import { formatLocalDate } from '@/lib/format';
+import { mergeWorkActivities, type WorkActivity, type WorkActivityDraft, type WorkActivitySourceType } from '@/lib/work-activity';
+import { loadServerData, saveServerData } from '@/lib/server-data';
+
+interface ProgressNoteInput {
+  actorId: string;
+  sourceType: WorkActivitySourceType;
+  sourceId: string;
+  title: string;
+  note: string;
+  blocker?: string;
+  helperId?: string;
+  delayRisk?: string;
+}
+
+interface WorkActivityState {
+  activities: WorkActivity[];
+  fetchActivities: () => Promise<void>;
+  addActivity: (data: WorkActivityDraft) => WorkActivity;
+  addProgressNote: (data: ProgressNoteInput) => WorkActivity;
+  deleteActivity: (id: string) => void;
+}
+
+async function saveStored(
+  items: WorkActivity[],
+  setActivities?: (items: WorkActivity[]) => void,
+  options: { mergeRemote?: boolean } = {},
+) {
+  try {
+    if (options.mergeRemote === false) {
+      await saveServerData('work-activities', items);
+      return;
+    }
+    const remote = await loadServerData<WorkActivity[]>('work-activities');
+    const merged = mergeWorkActivities(Array.isArray(remote) ? remote : [], items);
+    setActivities?.(merged);
+    await saveServerData('work-activities', merged);
+  } catch {
+    saveServerData('work-activities', items).catch(() => {});
+  }
+}
+
+async function loadStored(): Promise<WorkActivity[] | null> {
+  try {
+    return await loadServerData<WorkActivity[]>('work-activities');
+  } catch {}
+  return null;
+}
+
+function createActivityId(): string {
+  return `act-${Date.now()}-${Math.random().toString(36).slice(2, 7)}`;
+}
+
+export const useWorkActivityStore = create<WorkActivityState>((set, get) => ({
+  activities: [],
+
+  fetchActivities: async () => {
+    const cached = await loadStored();
+    if (cached) set({ activities: cached });
+  },
+
+  addActivity: (data) => {
+    const now = new Date();
+    const item: WorkActivity = {
+      ...data,
+      id: createActivityId(),
+      date: data.date ?? formatLocalDate(now),
+      occurredAt: data.occurredAt ?? now.toISOString(),
+    };
+    const updated = [...get().activities, item];
+    set({ activities: updated });
+    saveStored(updated, (activities) => set({ activities }));
+    return item;
+  },
+
+  addProgressNote: (data) => {
+    const details = [
+      data.note.trim(),
+      data.blocker?.trim() ? `阻塞：${data.blocker.trim()}` : '',
+      data.helperId?.trim() ? `需协助：${data.helperId.trim()}` : '',
+      data.delayRisk?.trim() ? `延期风险：${data.delayRisk.trim()}` : '',
+    ].filter(Boolean);
+
+    return get().addActivity({
+      actorId: data.actorId,
+      sourceType: data.sourceType,
+      sourceId: data.sourceId,
+      action: 'progress_note_added',
+      category: data.blocker?.trim() || data.delayRisk?.trim() ? 'risk' : 'note',
+      title: data.title,
+      summary: `补充进展：${details.join('；')}`,
+      metadata: {
+        note: data.note.trim(),
+        blocker: data.blocker?.trim() || undefined,
+        helperId: data.helperId?.trim() || undefined,
+        delayRisk: data.delayRisk?.trim() || undefined,
+      },
+    });
+  },
+
+  deleteActivity: (id) => {
+    const updated = get().activities.filter((activity) => activity.id !== id);
+    set({ activities: updated });
+    saveStored(updated, (activities) => set({ activities }), { mergeRemote: false });
+  },
+}));
diff --git a/docs/architecture.md b/docs/architecture.md
index c6d44ed..9ab453f 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -165,3 +165,15 @@ V2 接入后端后改为基于 `ProjectMember` 表的 RBAC（Owner/Admin/Member/
 - `task-category.ts`：DevTask/TestCase 共用任务类型字典，`id` 用于存储，`code` 用于 AI 语义映射。
 
 页面组件只消费规则层输出，不直接拼完成条件或候选筛选条件。
+## Work Activity Daily Report Layer (2026-06-26)
+
+The personal daily report is derived from two inputs:
+
+- `work-activities`: append-only activity records created by successful business actions.
+- `task-worklogs`: legacy/manual worklog records that still contribute hours and written work content.
+
+`work-activity-factory.ts` owns the mapping from domain actions to reportable activity semantics. Zustand stores call this factory after a successful operation, then append the result through `useWorkActivityStore`.
+
+`workspace-daily-report.ts` remains a pure aggregation engine. It groups today's current-user activity into delivery, progress, creation, risk, and note sections, and also detects in-progress work that started before today but has no activity or progress note today.
+
+This is intentionally not a generic rules engine or event bus. The rule surface is explicit, typed, and local to the workspace/daily-report use case.
diff --git a/docs/decisions.md b/docs/decisions.md
index f669f4a..908402e 100644
--- a/docs/decisions.md
+++ b/docs/decisions.md
@@ -330,3 +330,16 @@
 - 测试用例按所属需求分组时展示“已提测/待提测”标签；只有该需求下所有开发任务都 `submitted` 才展示“已提测”，否则展示“待提测”。
 
 **理由**：第一轮承载完整测试范围，后续轮次应复跑同一范围而不是临时拼装；执行记录按轮次隔离，整体投入按版本累计，能同时回答“这一轮测得怎么样”和“这个版本测试总共花了多少”。
+## 28. Daily report uses work activity log, not a generic rules engine
+
+**Problem**: A daily report based only on manual `task-worklogs` misses important actions such as submitting a product plan, starting a development task, submitting code to test, fixing bugs, or marking blockers.
+
+**Decision**: Add a lightweight `work-activities` document key and a typed `work-activity-factory.ts`. Business stores append activity records after successful operations. The workspace daily report derives a personal report from activities, legacy worklogs, and current work items.
+
+**Why**:
+- Automatic activity records provide evidence that work happened today.
+- Manual progress notes explain multi-day work when no status changed today.
+- A generic rules engine is too heavy for the current AppData stage and would hide business rules behind configuration.
+- A pure aggregation function keeps report behavior testable and predictable.
+
+**Rule**: Key status changes count as daily evidence. Multi-day in-progress work without today's activity or progress note is flagged as needing a progress update.
diff --git a/docs/roadmap.md b/docs/roadmap.md
index ceb117f..96afb61 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -136,3 +136,7 @@ NestJS + Prisma + PostgreSQL 已开始接入。第一阶段先用 `app_data` JSO
 | V2 后端接入 | 进行中（V2.1 AppData 已实现） |
 | V3 AI 集成 | 等 V2 数据沉淀 |
 | 公开发布 | TBD |
+**2026-06-26**
+- Workspace daily report upgraded from manual worklog summary to mixed activity aggregation.
+- Added `work-activities` AppData key and a typed activity factory for VersionPlan, DevTask, TestCase, and Bug actions.
+- `/workspace` daily report now groups delivery/progress/creation/risk/progress-note records and flags in-progress work that needs today's progress update.
diff --git a/docs/superpowers/plans/2026-06-26-work-activity-daily-report.md b/docs/superpowers/plans/2026-06-26-work-activity-daily-report.md
new file mode 100644
index 0000000..021f1ad
--- /dev/null
+++ b/docs/superpowers/plans/2026-06-26-work-activity-daily-report.md
@@ -0,0 +1,143 @@
+# Work Activity Daily Report Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Add a lightweight work-activity layer and use it to build a more complete personal daily report.
+
+**Architecture:** Add `WorkActivity` types, a Zustand store persisted through the existing `app_data` document API, and a pure `workspace-daily-report` aggregator that combines activities, legacy worklogs, and current workspace items. Store business actions create activity records at existing operation entry points.
+
+**Tech Stack:** Next.js app router, Zustand stores, TypeScript pure functions, Node test runner through the existing web test command.
+
+---
+
+### Task 1: Activity Types And Daily Report Aggregation
+
+**Files:**
+- Create: `apps/web/lib/work-activity.ts`
+- Modify: `apps/web/lib/workspace-daily-report.ts`
+- Modify: `apps/web/lib/workspace-daily-report.test.ts`
+
+- [ ] **Step 1: Write failing tests**
+
+Add tests that call `getWorkspaceDailyReport` with `activities`, `worklogs`, `workItems`, `userId`, and `date`. Cover activity grouping, user/date filtering, old worklog compatibility, and needs-progress detection for an in-progress item without today's note.
+
+- [ ] **Step 2: Run focused tests and verify failure**
+
+Run: `pnpm --filter=web test -- workspace-daily-report`
+
+Expected: FAIL because `activities` and `needsProgressItems` are not implemented.
+
+- [ ] **Step 3: Implement minimal types and aggregation**
+
+Create `WorkActivity` and update `WorkspaceDailyReport` with `groups`, `legacyWorklogs`, and `needsProgressItems`. Keep `items` as a compatibility alias for old worklog-derived rows until the UI is updated.
+
+- [ ] **Step 4: Run focused tests and verify pass**
+
+Run: `pnpm --filter=web test -- workspace-daily-report`
+
+Expected: PASS.
+
+### Task 2: Activity Persistence Store
+
+**Files:**
+- Create: `apps/web/stores/useWorkActivityStore.ts`
+- Modify: `apps/web/lib/server-data.ts`
+- Modify: `apps/server/src/modules/data/data-keys.ts`
+
+- [ ] **Step 1: Write failing persistence/type test**
+
+Extend an existing data-key or server-data test so `work-activities` is accepted.
+
+- [ ] **Step 2: Run focused tests and verify failure**
+
+Run: `pnpm --filter=web test -- workspace-daily-report`
+
+Expected: FAIL or type-check failure until the new key is registered.
+
+- [ ] **Step 3: Implement store and data key**
+
+Add `useWorkActivityStore` with `fetchActivities`, `addActivity`, and `addProgressNote`, persisted through `saveServerData('work-activities', items)`.
+
+- [ ] **Step 4: Run focused tests**
+
+Run: `pnpm --filter=web test -- workspace-daily-report`
+
+Expected: PASS.
+
+### Task 3: Emit Activities From Business Stores
+
+**Files:**
+- Modify: `apps/web/stores/useVersionPlanStore.ts`
+- Modify: `apps/web/stores/useDevTaskStore.ts`
+- Modify: `apps/web/stores/useBugStore.ts`
+- Modify if present: `apps/web/stores/useTestCaseStore.ts`
+
+- [ ] **Step 1: Add tests for action-to-activity mapping where pure helpers exist**
+
+Cover dev-task start/submitted, plan completion, and bug fixed/closed through helper-level tests or store-light tests if existing patterns allow.
+
+- [ ] **Step 2: Run tests and verify failure**
+
+Run: `pnpm --filter=web test -- workspace-daily-report dev-task-workflow bug-workflow version-plan-workflow`
+
+Expected: FAIL for new activity mapping expectations.
+
+- [ ] **Step 3: Emit activities in store methods**
+
+Call `useWorkActivityStore.getState().addActivity(...)` after successful create, status transition, completion, blocked change, transfer, and progress-note actions.
+
+- [ ] **Step 4: Run tests**
+
+Run: `pnpm --filter=web test -- workspace-daily-report dev-task-workflow bug-workflow version-plan-workflow`
+
+Expected: PASS.
+
+### Task 4: Workspace And Drawer UI
+
+**Files:**
+- Modify: `apps/web/app/workspace/page.tsx`
+- Modify: `apps/web/components/workspace/DailyReportPanel.tsx`
+- Modify: `apps/web/components/dev-task/DevTaskDetailDrawer.tsx`
+
+- [ ] **Step 1: Write/update UI-adjacent tests if existing component tests cover the panel**
+
+Assert grouped labels render from the daily report model when component tests are available.
+
+- [ ] **Step 2: Wire the workspace page**
+
+Fetch `work-activities`, pass them into `getWorkspaceDailyReport`, and render grouped sections.
+
+- [ ] **Step 3: Add progress-note controls in dev-task drawer**
+
+Expose a compact form for ongoing work that records note, blocker/help/risk metadata through `addProgressNote`.
+
+- [ ] **Step 4: Run web tests and type-check**
+
+Run: `pnpm --filter=web test`
+
+Run: `pnpm --filter=web type-check`
+
+Expected: PASS.
+
+### Task 5: Documentation And Final Verification
+
+**Files:**
+- Modify: `docs/architecture.md`
+- Modify: `docs/decisions.md`
+- Modify: `docs/roadmap.md`
+
+- [ ] **Step 1: Document the new activity layer**
+
+Add a short architecture note and decision explaining why this is an activity engine instead of a generic rules engine.
+
+- [ ] **Step 2: Run full verification**
+
+Run: `pnpm --filter=web test`
+
+Run: `pnpm --filter=web type-check`
+
+Run: `pnpm --filter=server test`
+
+Run: `git diff --check`
+
+Expected: all commands exit 0.
diff --git a/docs/superpowers/specs/2026-06-26-work-activity-daily-report-design.md b/docs/superpowers/specs/2026-06-26-work-activity-daily-report-design.md
new file mode 100644
index 0000000..a4c22ca
--- /dev/null
+++ b/docs/superpowers/specs/2026-06-26-work-activity-daily-report-design.md
@@ -0,0 +1,87 @@
+# Work Activity Daily Report Design
+
+## Goal
+
+Build a lightweight activity-record layer so the workspace daily report can show what the current user actually did today, including automatic business actions and manual progress notes.
+
+## Decision
+
+Use a `work-activities` event log plus a pure daily-report aggregation function. Do not add a generic rules engine or scheduler for the MVP.
+
+Automatic events prove that an action happened today. Manual progress notes explain ongoing work that did not change status today.
+
+## Scope
+
+In scope:
+
+- Current `/workspace` daily report remains personal and filters by the logged-in user.
+- Activity records are stored in the server `app_data` document layer under `work-activities`.
+- Product plan, dev task, test case, and bug actions can create activity records.
+- Daily report groups activity into delivery, progress, creation, risk, and progress-note-needed sections.
+- Multi-day in-progress items without today's manual progress note are shown as needing progress update.
+
+Out of scope:
+
+- Project-owner and management summary pages.
+- Scheduled reminders or fixed daily snapshots.
+- Generic configurable rule-engine UI.
+- Backend relational table migration.
+
+## Data Model
+
+`WorkActivity` is an append-only event-like record:
+
+- `id`: stable client-generated id.
+- `actorId`: current logged-in member display identity.
+- `date`: local date, `YYYY-MM-DD`.
+- `occurredAt`: ISO timestamp.
+- `sourceType`: `version_plan`, `dev_task`, `test_case`, `bug`, or `manual`.
+- `sourceId`: entity id.
+- `action`: stable semantic action code.
+- `title`: snapshot title for display even if entity later changes.
+- `summary`: readable activity summary.
+- `category`: `delivery`, `progress`, `creation`, `risk`, or `note`.
+- `metadata`: optional details such as from/to status, blocker, helper, risk, or note.
+
+## Capture Points
+
+Activity creation should happen at business operation entry points, not scattered through page rendering:
+
+- `useVersionPlanStore`: create plan, start plan, complete plan.
+- `useDevTaskStore`: create task, change status, set/clear blocked, add progress note.
+- `useBugStore`: create bug, status transition, transfer bug.
+- `useTestCaseStore`: create case and status transition when the store already has the action entry.
+
+This keeps UI components as consumers of store actions and keeps the rules close to existing workflow helpers.
+
+## Daily Report Rules
+
+For a user and local date:
+
+- Delivery: submitted dev tasks, completed plans, fixed/closed bugs, passed tests.
+- Progress: started work, moved status forward, self-test started, bug fixing started, transfers accepted.
+- Creation: created plans, dev tasks, test cases, bugs.
+- Risk: blocked items, delay risk notes, assistance requests.
+- Manual notes: explicit progress notes written by the owner.
+- Needs progress: in-progress work owned by the user that started before today and has no activity or manual note today.
+
+Status changes count as daily evidence. For multi-day work with no status change, the user should add a progress note; otherwise the report flags it as needing an update.
+
+## UI Behavior
+
+The daily report panel should show grouped summaries and a compact "needs progress" section. It should not become a management dashboard yet.
+
+Task detail drawers should expose a small progress-note action for ongoing work:
+
+- today's progress
+- blocker or assistance need
+- delay risk
+
+## Testing
+
+Add focused unit tests for:
+
+- activity filtering by user and date
+- grouping delivery/progress/risk/note items
+- automatic needs-progress detection
+- preserving old worklog compatibility during aggregation
diff --git a/docs/workflow.md b/docs/workflow.md
index 6466e02..9d944df 100644
--- a/docs/workflow.md
+++ b/docs/workflow.md
@@ -203,3 +203,21 @@ AI 估时约束：
 - `version-plan-workflow.ts` 是调研/产品方案/UI 设计完成条件的唯一入口。
 - `requirement-selector.ts` 是版本内关联需求候选的唯一入口。
 - `TaskCategory.code` 是 AI 和系统任务类型的稳定映射锚点，`id` 只作为存储主键。
+## Work Activity Daily Report Flow (2026-06-26)
+
+The daily report flow uses mixed evidence:
+
+1. Automatic evidence is written when a user performs a successful domain action:
+   - VersionPlan created, started, or completed.
+   - DevTask created, started, moved to self-test, submitted to test, blocked, or unblocked.
+   - TestCase created, started, passed, failed, or blocked.
+   - Bug created, moved to fixing, fixed, closed, or transferred.
+2. Manual progress notes are used for multi-day work that does not change status today.
+3. `/workspace` shows only the current logged-in user's report.
+4. Project-owner and management views will reuse the same `work-activities` data later, but are not part of the personal workspace panel.
+
+Implementation convention:
+
+- Activity wording and category mapping belong in `apps/web/lib/work-activity-factory.ts`.
+- Daily report grouping belongs in `apps/web/lib/workspace-daily-report.ts`.
+- Page components should consume report output, not rebuild report rules.