diff --git a/apps/server/src/modules/notification/dto/create-notification.dto.ts b/apps/server/src/modules/notification/dto/create-notification.dto.ts
new file mode 100644
index 0000000..01b4b55
--- /dev/null
+++ b/apps/server/src/modules/notification/dto/create-notification.dto.ts
@@ -0,0 +1,47 @@
+import { IsIn, IsObject, IsOptional, IsString } from 'class-validator';
+import { NOTIFICATION_TYPES, type NotificationType } from '../notification.service';
+
+export class CreateNotificationDto {
+  @IsString()
+  recipientId!: string;
+
+  @IsOptional()
+  @IsString()
+  actorId?: string;
+
+  @IsIn(NOTIFICATION_TYPES)
+  type!: NotificationType;
+
+  @IsString()
+  title!: string;
+
+  @IsOptional()
+  @IsString()
+  body?: string;
+
+  @IsString()
+  resourceType!: string;
+
+  @IsString()
+  resourceId!: string;
+
+  @IsOptional()
+  @IsString()
+  resourceVersionId?: string;
+
+  @IsOptional()
+  @IsString()
+  productId?: string;
+
+  @IsOptional()
+  @IsString()
+  projectId?: string;
+
+  @IsOptional()
+  @IsString()
+  versionId?: string;
+
+  @IsOptional()
+  @IsObject()
+  metadata?: Record<string, unknown>;
+}
diff --git a/apps/server/src/modules/notification/notification.controller.ts b/apps/server/src/modules/notification/notification.controller.ts
index 5c51112..beea318 100644
--- a/apps/server/src/modules/notification/notification.controller.ts
+++ b/apps/server/src/modules/notification/notification.controller.ts
@@ -1,4 +1,5 @@
-import { Body, Controller, Get, Param, Patch, Query } from '@nestjs/common';
+import { Body, Controller, Get, Param, Patch, Post, Query } from '@nestjs/common';
+import { CreateNotificationDto } from './dto/create-notification.dto';
 import { MarkNotificationReadDto } from './dto/mark-notification-read.dto';
 import { NotificationService } from './notification.service';
 
@@ -19,6 +20,11 @@ export class NotificationController {
     });
   }
 
+  @Post()
+  create(@Body() dto: CreateNotificationDto) {
+    return this.notificationService.create(dto);
+  }
+
   @Patch(':id/read')
   markRead(@Param('id') id: string, @Body() dto: MarkNotificationReadDto) {
     return this.notificationService.markRead(id, dto.recipientId);
diff --git a/apps/web/app/admin/governance/page.tsx b/apps/web/app/admin/governance/page.tsx
new file mode 100644
index 0000000..887421c
--- /dev/null
+++ b/apps/web/app/admin/governance/page.tsx
@@ -0,0 +1,149 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { Download, Plus, RefreshCcw, Trash2, Upload } from 'lucide-react';
+import { RouteGuard } from '@/components/auth/Guard';
+import { api } from '@/lib/api';
+import { useAuthStore } from '@/stores/useAuthStore';
+
+type GovernanceKind = 'task_category' | 'requirement_type' | 'requirement_platform' | 'requirement_source';
+
+interface GovernanceItem {
+  id: string;
+  kind?: string;
+  name: string;
+  code?: string | null;
+  group?: string | null;
+  isSystem?: boolean;
+}
+
+const KIND_LABEL: Record<GovernanceKind, string> = {
+  task_category: '任务类型',
+  requirement_type: '需求类型',
+  requirement_platform: '支持端',
+  requirement_source: '需求来源',
+};
+
+function GovernancePageInner() {
+  const user = useAuthStore((s) => s.user);
+  const [kind, setKind] = useState<GovernanceKind>('task_category');
+  const [items, setItems] = useState<GovernanceItem[]>([]);
+  const [name, setName] = useState('');
+  const [group, setGroup] = useState('other');
+  const [exportText, setExportText] = useState('');
+  const actorId = user?.id ?? '';
+
+  const reload = async () => {
+    const rows = await api.get<GovernanceItem[]>(`/governance/dictionaries?kind=${kind}`);
+    setItems(rows);
+  };
+
+  useEffect(() => {
+    void reload().catch(() => setItems([]));
+  }, [kind]);
+
+  const create = async () => {
+    if (!actorId || !name.trim()) return;
+    await api.post('/governance/dictionaries', { actorId, kind, name: name.trim(), group });
+    setName('');
+    await reload();
+  };
+
+  const remove = async (item: GovernanceItem) => {
+    if (!actorId) return;
+    await api.deleteWithBody(`/governance/dictionaries/${kind}/${item.id}`, { actorId });
+    await reload();
+  };
+
+  const exportAll = async () => {
+    const data = await api.get('/governance/export');
+    setExportText(JSON.stringify(data, null, 2));
+  };
+
+  const importAll = async () => {
+    if (!actorId || !exportText.trim()) return;
+    const parsed = JSON.parse(exportText);
+    const sourceItems = Array.isArray(parsed.items)
+      ? parsed.items
+      : [...(parsed.dictionaries ?? []), ...(parsed.taskCategories ?? []).map((item: GovernanceItem) => ({ ...item, kind: 'task_category' }))];
+    await api.post('/governance/import', { actorId, items: sourceItems });
+    await reload();
+  };
+
+  return (
+    <div className="min-h-full bg-[var(--bg)] p-6">
+      <div className="mx-auto max-w-5xl space-y-5">
+        <div className="flex items-center justify-between">
+          <div>
+            <h1 className="text-[18px] font-semibold text-[var(--ink)]">治理设置</h1>
+            <p className="mt-1 text-[12px] text-[var(--ink-muted)]">统一维护任务类型、需求类型、支持端与来源字典。</p>
+          </div>
+          <button onClick={reload} className="inline-flex h-8 items-center gap-1 rounded-md border border-[var(--line)] bg-[var(--bg-card)] px-3 text-[12px] text-[var(--ink-soft)]">
+            <RefreshCcw className="h-3.5 w-3.5" /> 刷新
+          </button>
+        </div>
+
+        <div className="flex gap-2">
+          {Object.entries(KIND_LABEL).map(([key, label]) => (
+            <button
+              key={key}
+              onClick={() => setKind(key as GovernanceKind)}
+              className={`h-8 rounded-md px-3 text-[12px] font-medium ${kind === key ? 'bg-[var(--accent)] text-white' : 'border border-[var(--line)] bg-[var(--bg-card)] text-[var(--ink-soft)]'}`}
+            >
+              {label}
+            </button>
+          ))}
+        </div>
+
+        <section className="rounded-lg border border-[var(--line)] bg-[var(--bg-card)]">
+          <div className="grid grid-cols-[1fr_140px_auto] gap-2 border-b border-[var(--line)] p-3">
+            <input value={name} onChange={(event) => setName(event.target.value)} placeholder={`新增${KIND_LABEL[kind]}`} className="h-8 rounded-md border border-[var(--line)] bg-[var(--bg)] px-3 text-[12px] focus:border-[var(--accent)] focus:outline-none" />
+            <input value={group} onChange={(event) => setGroup(event.target.value)} placeholder="分组" className="h-8 rounded-md border border-[var(--line)] bg-[var(--bg)] px-3 text-[12px] focus:border-[var(--accent)] focus:outline-none" />
+            <button onClick={create} disabled={!name.trim()} className="inline-flex h-8 items-center gap-1 rounded-md bg-[var(--accent)] px-3 text-[12px] font-medium text-white disabled:opacity-50">
+              <Plus className="h-3.5 w-3.5" /> 添加
+            </button>
+          </div>
+          <div className="divide-y divide-[var(--line)]">
+            {items.map((item) => (
+              <div key={item.id} className="grid grid-cols-[1fr_160px_80px_32px] items-center gap-3 px-4 py-2.5">
+                <span className="truncate text-[13px] text-[var(--ink)]">{item.name}</span>
+                <span className="truncate text-[11px] text-[var(--ink-muted)]">{item.code ?? '-'}</span>
+                <span className="truncate text-[11px] text-[var(--ink-muted)]">{item.group ?? '-'}</span>
+                <button onClick={() => remove(item).catch(() => {})} disabled={item.isSystem} className="rounded p-1.5 text-[var(--ink-muted)] hover:bg-red-50 hover:text-red-600 disabled:opacity-30" title="删除">
+                  <Trash2 className="h-3.5 w-3.5" />
+                </button>
+              </div>
+            ))}
+            {items.length === 0 && <div className="px-4 py-8 text-center text-[12px] text-[var(--ink-muted)]">暂无字典项</div>}
+          </div>
+        </section>
+
+        <section className="rounded-lg border border-[var(--line)] bg-[var(--bg-card)] p-4">
+          <div className="mb-3 flex items-center gap-2">
+            <button onClick={exportAll} className="inline-flex h-8 items-center gap-1 rounded-md border border-[var(--line)] px-3 text-[12px] text-[var(--ink-soft)]">
+              <Download className="h-3.5 w-3.5" /> 导出
+            </button>
+            <button onClick={importAll} disabled={!exportText.trim()} className="inline-flex h-8 items-center gap-1 rounded-md border border-[var(--line)] px-3 text-[12px] text-[var(--ink-soft)] disabled:opacity-50">
+              <Upload className="h-3.5 w-3.5" /> 导入
+            </button>
+          </div>
+          <textarea
+            value={exportText}
+            onChange={(event) => setExportText(event.target.value)}
+            rows={10}
+            className="w-full rounded-md border border-[var(--line)] bg-[var(--bg)] px-3 py-2 font-mono text-[11px] leading-5 focus:border-[var(--accent)] focus:outline-none"
+            placeholder="点击导出生成 JSON，也可以粘贴 JSON 后导入"
+          />
+        </section>
+      </div>
+    </div>
+  );
+}
+
+export default function GovernancePage() {
+  return (
+    <RouteGuard permission="governance:manage">
+      <GovernancePageInner />
+    </RouteGuard>
+  );
+}
diff --git a/apps/web/app/admin/management/page.tsx b/apps/web/app/admin/management/page.tsx
new file mode 100644
index 0000000..f9e510a
--- /dev/null
+++ b/apps/web/app/admin/management/page.tsx
@@ -0,0 +1,132 @@
+'use client';
+
+import { useEffect, useMemo, useState } from 'react';
+import { Activity, AlertTriangle, Blocks, Gauge, Users } from 'lucide-react';
+import { RouteGuard } from '@/components/auth/Guard';
+import { api } from '@/lib/api';
+import { useAuthStore } from '@/stores/useAuthStore';
+import { useMemberStore } from '@/stores/useMemberStore';
+
+interface ManagementOverview {
+  activeVersionCount: number;
+  overdueItemCount: number;
+  blockedItemCount: number;
+  riskCounts: Record<string, number>;
+  memberLoads: Array<{ memberId: string; openItemCount: number }>;
+  activeVersions: Array<{ id: string; name: string; projectId?: string | null; releaseDate?: string | null }>;
+  overdueItems: Array<{ type: string; id: string; title: string; versionId: string; ownerId?: string | null; dueAt?: string | null }>;
+  blockedItems: Array<{ type: string; id: string; title: string; versionId: string; ownerId?: string | null }>;
+  highRiskVersions: Array<{ versionId: string; riskLevel: string; riskScore: number }>;
+}
+
+const TYPE_LABEL: Record<string, string> = {
+  version_plan: '计划',
+  dev_task: '开发',
+  test_case: '测试',
+  bug: 'Bug',
+};
+
+function ManagementPageInner() {
+  const user = useAuthStore((s) => s.user);
+  const role = useMemberStore((s) => s.roles.find((item) => item.id === user?.roleId));
+  const [overview, setOverview] = useState<ManagementOverview | null>(null);
+  const [loading, setLoading] = useState(false);
+  const permissions = useMemo(() => role?.permissions ?? [], [role?.permissions]);
+
+  useEffect(() => {
+    if (!user?.id) return;
+    setLoading(true);
+    const params = new URLSearchParams({ actorId: user.id });
+    if (permissions.length > 0) params.set('permissions', permissions.join(','));
+    api.get<ManagementOverview>(`/management/overview?${params.toString()}`)
+      .then(setOverview)
+      .catch(() => setOverview(null))
+      .finally(() => setLoading(false));
+  }, [permissions, user?.id]);
+
+  const riskTotal = overview ? Object.values(overview.riskCounts).reduce((sum, count) => sum + count, 0) : 0;
+
+  return (
+    <div className="min-h-full bg-[var(--bg)] p-6">
+      <div className="mx-auto max-w-6xl space-y-5">
+        <div className="flex items-center justify-between">
+          <div>
+            <h1 className="text-[18px] font-semibold text-[var(--ink)]">管理驾驶舱</h1>
+            <p className="mt-1 text-[12px] text-[var(--ink-muted)]">关系表实时聚合，不读取 AppData。</p>
+          </div>
+          <div className="rounded-md border border-[var(--line)] bg-[var(--bg-card)] px-3 py-1.5 text-[11px] text-[var(--ink-muted)]">
+            {loading ? '刷新中' : '已同步'}
+          </div>
+        </div>
+
+        <div className="grid grid-cols-4 gap-3">
+          <Metric icon={Activity} label="活跃版本" value={overview?.activeVersionCount ?? 0} />
+          <Metric icon={AlertTriangle} label="逾期事项" value={overview?.overdueItemCount ?? 0} tone="warn" />
+          <Metric icon={Blocks} label="阻塞事项" value={overview?.blockedItemCount ?? 0} tone="danger" />
+          <Metric icon={Gauge} label="风险版本" value={riskTotal} tone="risk" />
+        </div>
+
+        <div className="grid grid-cols-[1.15fr_0.85fr] gap-4">
+          <section className="rounded-lg border border-[var(--line)] bg-[var(--bg-card)]">
+            <div className="border-b border-[var(--line)] px-4 py-3 text-[13px] font-semibold text-[var(--ink)]">逾期与阻塞</div>
+            <div className="divide-y divide-[var(--line)]">
+              {[...(overview?.overdueItems ?? []), ...(overview?.blockedItems ?? [])].slice(0, 12).map((item) => (
+                <div key={`${item.type}-${item.id}`} className="grid grid-cols-[72px_1fr_120px] gap-3 px-4 py-2.5 text-[12px]">
+                  <span className="rounded bg-[var(--bg-subtle)] px-2 py-1 text-center text-[11px] text-[var(--ink-muted)]">{TYPE_LABEL[item.type] ?? item.type}</span>
+                  <span className="min-w-0 truncate text-[var(--ink)]">{item.title}</span>
+                  <span className="truncate text-right text-[var(--ink-muted)]">{item.ownerId ?? '-'}</span>
+                </div>
+              ))}
+              {(!overview || (overview.overdueItems.length + overview.blockedItems.length) === 0) && (
+                <div className="px-4 py-8 text-center text-[12px] text-[var(--ink-muted)]">暂无逾期或阻塞事项</div>
+              )}
+            </div>
+          </section>
+
+          <section className="rounded-lg border border-[var(--line)] bg-[var(--bg-card)]">
+            <div className="flex items-center gap-2 border-b border-[var(--line)] px-4 py-3 text-[13px] font-semibold text-[var(--ink)]">
+              <Users className="h-4 w-4 text-[var(--accent)]" /> 成员负载
+            </div>
+            <div className="divide-y divide-[var(--line)]">
+              {(overview?.memberLoads ?? []).slice(0, 10).map((item) => (
+                <div key={item.memberId} className="flex items-center gap-3 px-4 py-2.5">
+                  <span className="min-w-0 flex-1 truncate text-[12px] text-[var(--ink)]">{item.memberId}</span>
+                  <span className="rounded bg-blue-50 px-2 py-0.5 text-[11px] font-medium text-blue-700">{item.openItemCount}</span>
+                </div>
+              ))}
+              {(!overview || overview.memberLoads.length === 0) && (
+                <div className="px-4 py-8 text-center text-[12px] text-[var(--ink-muted)]">暂无负载数据</div>
+              )}
+            </div>
+          </section>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function Metric({ icon: Icon, label, value, tone = 'neutral' }: { icon: any; label: string; value: number; tone?: 'neutral' | 'warn' | 'danger' | 'risk' }) {
+  const toneClass = {
+    neutral: 'text-[var(--accent)] bg-blue-50',
+    warn: 'text-orange-700 bg-orange-50',
+    danger: 'text-red-700 bg-red-50',
+    risk: 'text-purple-700 bg-purple-50',
+  }[tone];
+  return (
+    <div className="rounded-lg border border-[var(--line)] bg-[var(--bg-card)] p-4">
+      <div className="mb-3 flex items-center justify-between">
+        <span className="text-[12px] text-[var(--ink-muted)]">{label}</span>
+        <span className={`rounded-md p-1.5 ${toneClass}`}><Icon className="h-4 w-4" /></span>
+      </div>
+      <div className="text-[26px] font-semibold tabular-nums text-[var(--ink)]">{value}</div>
+    </div>
+  );
+}
+
+export default function ManagementPage() {
+  return (
+    <RouteGuard permission="management:view">
+      <ManagementPageInner />
+    </RouteGuard>
+  );
+}
diff --git a/apps/web/app/projects/[id]/page.tsx b/apps/web/app/projects/[id]/page.tsx
index f0ebf9e..f668b21 100644
--- a/apps/web/app/projects/[id]/page.tsx
+++ b/apps/web/app/projects/[id]/page.tsx
@@ -18,6 +18,7 @@ import { VersionStatus, VERSION_STATUS_LABEL, VERSION_STATUS_BG } from '@/lib/ve
 import { calcGroupProgress as calcDevTaskProgress, aggregateDevTaskHours } from '@/lib/dev-task';
 import { CapsuleStages } from '@/components/version/CapsuleStages';
 import { MemberChips } from '@/components/version/MemberChips';
+import { ProjectMemberPanel } from '@/components/project/ProjectMemberPanel';
 import { getRequirementCoverageSummary, type VersionPlan } from '@/lib/version-plan';
 import { buildVersionTimelineSummary, calcStageEffortMetrics, formatVersionOverviewDateTime, getVersionCardDefaultExpanded, mergeStageProgressWithEffort } from '@/lib/version-overview';
 import { calcScopedVersionProgress } from '@/lib/version-progress';
@@ -451,6 +452,8 @@ export default function ProjectDetailPage() {
 
           <TeamSection teamByRole={teamByRole} />
 
+          <ProjectMemberPanel projectId={projectId} />
+
           <section>
             <div className="flex items-center justify-between mb-3">
               <div className="flex items-center gap-2">
diff --git a/apps/web/components/bug/BugDetailDrawer.tsx b/apps/web/components/bug/BugDetailDrawer.tsx
index b673854..1505ed2 100644
--- a/apps/web/components/bug/BugDetailDrawer.tsx
+++ b/apps/web/components/bug/BugDetailDrawer.tsx
@@ -4,6 +4,7 @@ import { useMemo, useState } from 'react';
 import { X, Link2, ChevronRight, ArrowRightLeft } from 'lucide-react';
 import { BugStatusBadge } from './BugStatusBadge';
 import { ActivityLogPanel } from '@/components/ActivityLogPanel';
+import { CommentPanel } from '@/components/comment/CommentPanel';
 import { FilterSelect } from '@/components/FilterSelect';
 import { useBugStore } from '@/stores/useBugStore';
 import { useTestCaseStore } from '@/stores/useTestCaseStore';
@@ -228,6 +229,13 @@ export function BugDetailDrawer({ bugId, onClose, contextLabel, readOnly = false
           )}
 
           <ActivityLogPanel sourceType="bug" sourceId={bug.id} legacyEntries={legacyLogEntries} />
+          <CommentPanel
+            entityType="bug"
+            entityId={bug.id}
+            entityVersionId={bug.versionId}
+            versionId={bug.versionId}
+            readOnly={readOnly}
+          />
         </div>
       </div>
 
diff --git a/apps/web/components/comment/CommentPanel.tsx b/apps/web/components/comment/CommentPanel.tsx
new file mode 100644
index 0000000..06b8e37
--- /dev/null
+++ b/apps/web/components/comment/CommentPanel.tsx
@@ -0,0 +1,126 @@
+'use client';
+
+import { useEffect, useMemo, useState } from 'react';
+import { MessageSquare, Send, Trash2 } from 'lucide-react';
+import { useAuthStore } from '@/stores/useAuthStore';
+import { useCommentStore, commentKey } from '@/stores/useCommentStore';
+import { useMemberStore } from '@/stores/useMemberStore';
+import { extractMentionNames, mergeMentionMemberIds } from '@/lib/comment-mentions';
+import { formatDateTime } from '@/lib/format';
+
+export type CommentEntityType = 'dev_task' | 'test_case' | 'bug' | 'requirement' | 'version_plan';
+
+interface Props {
+  entityType: CommentEntityType;
+  entityId: string;
+  entityVersionId?: string | null;
+  productId?: string | null;
+  projectId?: string | null;
+  versionId?: string | null;
+  readOnly?: boolean;
+}
+
+export function CommentPanel({ entityType, entityId, entityVersionId, productId, projectId, versionId, readOnly = false }: Props) {
+  const user = useAuthStore((s) => s.user);
+  const { members, fetchMembers } = useMemberStore();
+  const { commentsByKey, fetchComments, createComment, deleteComment } = useCommentStore();
+  const [content, setContent] = useState('');
+  const [selectedIds, setSelectedIds] = useState<string[]>([]);
+  const key = commentKey(entityType, entityId);
+  const comments = commentsByKey[key] ?? [];
+
+  useEffect(() => {
+    void fetchComments(entityType, entityId).catch(() => {});
+    void fetchMembers().catch(() => {});
+  }, [entityId, entityType, fetchComments, fetchMembers]);
+
+  const mentionNames = useMemo(() => extractMentionNames(content), [content]);
+  const mentionMemberIds = useMemo(() => mergeMentionMemberIds({
+    content,
+    explicitMemberIds: selectedIds,
+    members: members.map((member) => ({ id: member.id, name: member.name })),
+  }), [content, members, selectedIds]);
+
+  const submit = async () => {
+    if (readOnly || !user?.id || !content.trim()) return;
+    await createComment({
+      actorId: user.id,
+      entityType,
+      entityId,
+      entityVersionId,
+      productId,
+      projectId,
+      versionId,
+      content: content.trim(),
+      mentionMemberIds,
+    });
+    setContent('');
+    setSelectedIds([]);
+  };
+
+  const toggleMember = (id: string) => {
+    setSelectedIds((current) => current.includes(id) ? current.filter((item) => item !== id) : [...current, id]);
+  };
+
+  return (
+    <div className="rounded-lg border border-[var(--line)] bg-[var(--bg-card)] p-4">
+      <div className="mb-3 flex items-center gap-1.5 text-[10px] uppercase tracking-wide text-[var(--ink-muted)]">
+        <MessageSquare className="h-3 w-3" /> 评论
+      </div>
+      <div className="space-y-3">
+        {comments.length === 0 ? (
+          <p className="text-[12px] text-[var(--ink-muted)]">暂无评论</p>
+        ) : (
+          comments.map((comment) => {
+            const author = members.find((member) => member.id === comment.authorId)?.name ?? comment.authorId;
+            return (
+              <div key={comment.id} className="rounded-md bg-[var(--bg-subtle)] px-3 py-2">
+                <div className="mb-1 flex items-center gap-2">
+                  <span className="text-[12px] font-medium text-[var(--ink)]">{author}</span>
+                  <span className="text-[10px] tabular-nums text-[var(--ink-muted)]">{formatDateTime(comment.createdAt)}</span>
+                  {!readOnly && user?.id === comment.authorId && (
+                    <button onClick={() => deleteComment(entityType, entityId, comment.id, user.id).catch(() => {})} className="ml-auto rounded p-1 text-[var(--ink-muted)] hover:bg-red-50 hover:text-red-600" title="删除评论">
+                      <Trash2 className="h-3 w-3" />
+                    </button>
+                  )}
+                </div>
+                <p className="whitespace-pre-wrap text-[12px] leading-5 text-[var(--ink-soft)]">{comment.content}</p>
+              </div>
+            );
+          })
+        )}
+      </div>
+
+      {!readOnly && (
+        <div className="mt-3 space-y-2 border-t border-[var(--line)] pt-3">
+          <textarea
+            value={content}
+            onChange={(event) => setContent(event.target.value)}
+            rows={3}
+            placeholder="写评论，输入 @成员名 可提及"
+            className="w-full resize-none rounded-lg border border-[var(--line)] bg-[var(--bg)] px-3 py-2 text-[12px] leading-5 focus:border-[var(--accent)] focus:outline-none"
+          />
+          <div className="flex flex-wrap gap-1.5">
+            {members.slice(0, 8).map((member) => (
+              <button
+                key={member.id}
+                onClick={() => toggleMember(member.id)}
+                className={`h-6 rounded-md border px-2 text-[11px] ${selectedIds.includes(member.id) ? 'border-blue-300 bg-blue-50 text-blue-700' : 'border-[var(--line)] text-[var(--ink-muted)] hover:bg-[var(--bg-subtle)]'}`}
+              >
+                @{member.name}
+              </button>
+            ))}
+          </div>
+          <div className="flex items-center justify-between">
+            <span className="text-[10px] text-[var(--ink-muted)]">
+              {mentionNames.length > 0 || selectedIds.length > 0 ? `将通知 ${mentionMemberIds.length} 人` : '未提及成员'}
+            </span>
+            <button onClick={submit} disabled={!content.trim() || !user?.id} className="inline-flex h-8 items-center gap-1.5 rounded-lg bg-[var(--accent)] px-3 text-[12px] font-medium text-white disabled:opacity-50">
+              <Send className="h-3 w-3" /> 发送
+            </button>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}
diff --git a/apps/web/components/dev-task/DevTaskDetailDrawer.tsx b/apps/web/components/dev-task/DevTaskDetailDrawer.tsx
index 0ecf2ad..8ec6a39 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 { ActivityLogPanel } from '@/components/ActivityLogPanel';
+import { CommentPanel } from '@/components/comment/CommentPanel';
 import { useDevTaskStore } from '@/stores/useDevTaskStore';
 import { useWorkActivityStore } from '@/stores/useWorkActivityStore';
 import { useTaskCategoryStore } from '@/stores/useTaskCategoryStore';
@@ -507,6 +508,14 @@ export function DevTaskDetailDrawer({ taskId, allTaskIds, onClose, contextLabel,
 
           <ActivityLogPanel sourceType="dev_task" sourceId={task.id} />
 
+          <CommentPanel
+            entityType="dev_task"
+            entityId={task.id}
+            entityVersionId={task.versionId}
+            versionId={task.versionId}
+            readOnly={readOnly}
+          />
+
           {predecessors.length > 0 && (
             <div className="rounded-lg border border-[var(--line)] bg-[var(--bg-card)] p-4">
               <div className="text-[10px] text-[var(--ink-muted)] uppercase tracking-wide mb-2">前置任务</div>
diff --git a/apps/web/components/layout/Sidebar.tsx b/apps/web/components/layout/Sidebar.tsx
index 4f052d1..f6a2da4 100644
--- a/apps/web/components/layout/Sidebar.tsx
+++ b/apps/web/components/layout/Sidebar.tsx
@@ -2,8 +2,9 @@
 
 import { useEffect } from 'react';
 import { usePathname, useRouter } from 'next/navigation';
-import { Inbox, Package, FolderKanban, Tag, Users, LayoutGrid, Lightbulb, Clock, Shield, Settings, Sparkles, TriangleAlert, MessageCircleQuestionMark } from 'lucide-react';
+import { Inbox, Package, FolderKanban, Tag, Users, LayoutGrid, Lightbulb, Clock, Shield, Settings, Sparkles, TriangleAlert, MessageCircleQuestionMark, BarChart3, SlidersHorizontal } from 'lucide-react';
 import { useHasPermission } from '@/components/auth/Guard';
+import { NotificationBell } from '@/components/notification/NotificationBell';
 import { useXiaobaoWarningRisks } from '@/hooks/useXiaobaoWarningRisks';
 import { useWorkspaceWorkItems } from '@/hooks/useWorkspaceWorkItems';
 import { useAuthStore } from '@/stores/useAuthStore';
@@ -45,6 +46,8 @@ const NAV_GROUPS = [
     items: [
       { label: '成员', path: '/admin/members', icon: Users, permission: 'member:view' },
       { label: '角色', path: '/admin/roles', icon: Shield, permission: 'role:view' },
+      { label: '管理驾驶舱', path: '/admin/management', icon: BarChart3, permission: 'management:view' },
+      { label: '治理设置', path: '/admin/governance', icon: SlidersHorizontal, permission: 'governance:manage' },
       { label: 'AI 配置', path: '/admin/ai-config', icon: Sparkles, permission: '*' },
     ],
   },
@@ -116,6 +119,7 @@ function UserBlock() {
         <p className="truncate text-[13px] font-medium text-[var(--ink)]">{user.name}</p>
         <p className="truncate text-[11px] text-[var(--ink-muted)]">{role?.name ?? '-'}</p>
       </div>
+      <NotificationBell />
       <button
         onClick={() => router.push('/profile')}
         className="rounded-md p-1 text-[var(--ink-muted)] hover:bg-[var(--bg-card)] hover:text-[var(--accent)]"
diff --git a/apps/web/components/notification/NotificationBell.tsx b/apps/web/components/notification/NotificationBell.tsx
new file mode 100644
index 0000000..4f39599
--- /dev/null
+++ b/apps/web/components/notification/NotificationBell.tsx
@@ -0,0 +1,78 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { Bell, CheckCheck } from 'lucide-react';
+import { useAuthStore } from '@/stores/useAuthStore';
+import { useNotificationStore } from '@/stores/useNotificationStore';
+import { formatDateTime } from '@/lib/format';
+
+const TYPE_LABEL: Record<string, string> = {
+  assignment: '分配',
+  mention: '提及',
+  risk_alert: '风险',
+  overdue_item: '逾期',
+};
+
+export function NotificationBell() {
+  const user = useAuthStore((s) => s.user);
+  const { notifications, unreadCount, fetchNotifications, markRead, markAllRead } = useNotificationStore();
+  const [open, setOpen] = useState(false);
+
+  useEffect(() => {
+    if (user?.id) void fetchNotifications(user.id).catch(() => {});
+  }, [fetchNotifications, user?.id]);
+
+  if (!user?.id) return null;
+
+  return (
+    <div className="relative">
+      <button
+        onClick={() => setOpen((value) => !value)}
+        className="relative rounded-md p-1 text-[var(--ink-muted)] hover:bg-[var(--bg-card)] hover:text-[var(--accent)]"
+        title="通知"
+      >
+        <Bell className="h-4 w-4" strokeWidth={1.8} />
+        {unreadCount > 0 && (
+          <span className="absolute -right-1 -top-1 inline-flex h-4 min-w-4 items-center justify-center rounded-full bg-red-600 px-1 text-[9px] font-semibold leading-none text-white">
+            {unreadCount > 9 ? '9+' : unreadCount}
+          </span>
+        )}
+      </button>
+
+      {open && (
+        <div className="absolute bottom-9 right-0 z-50 w-80 overflow-hidden rounded-lg border border-[var(--line)] bg-[var(--bg-card)] shadow-2xl">
+          <div className="flex h-10 items-center justify-between border-b border-[var(--line)] px-3">
+            <span className="text-[12px] font-semibold text-[var(--ink)]">通知</span>
+            <button
+              onClick={() => markAllRead(user.id).catch(() => {})}
+              className="inline-flex h-7 items-center gap-1 rounded-md px-2 text-[11px] text-[var(--ink-muted)] hover:bg-[var(--bg-subtle)]"
+            >
+              <CheckCheck className="h-3 w-3" /> 全部已读
+            </button>
+          </div>
+          <div className="max-h-96 overflow-y-auto">
+            {notifications.length === 0 ? (
+              <div className="px-4 py-8 text-center text-[12px] text-[var(--ink-muted)]">暂无通知</div>
+            ) : (
+              notifications.map((item) => (
+                <button
+                  key={item.id}
+                  onClick={() => !item.readAt && markRead(item.id, user.id).catch(() => {})}
+                  className={`block w-full border-b border-[var(--line)] px-3 py-2.5 text-left last:border-b-0 hover:bg-[var(--bg-subtle)] ${item.readAt ? 'opacity-70' : ''}`}
+                >
+                  <div className="mb-1 flex items-center gap-2">
+                    <span className={`h-2 w-2 rounded-full ${item.readAt ? 'bg-zinc-300' : 'bg-blue-600'}`} />
+                    <span className="rounded bg-[var(--bg-subtle)] px-1.5 py-0.5 text-[10px] text-[var(--ink-muted)]">{TYPE_LABEL[item.type] ?? item.type}</span>
+                    <span className="ml-auto text-[10px] tabular-nums text-[var(--ink-muted)]">{formatDateTime(item.createdAt)}</span>
+                  </div>
+                  <div className="line-clamp-1 text-[12px] font-medium text-[var(--ink)]">{item.title}</div>
+                  {item.body && <div className="mt-0.5 line-clamp-2 text-[11px] leading-4 text-[var(--ink-muted)]">{item.body}</div>}
+                </button>
+              ))
+            )}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}
diff --git a/apps/web/components/project/ProjectMemberPanel.tsx b/apps/web/components/project/ProjectMemberPanel.tsx
new file mode 100644
index 0000000..ea7d6d7
--- /dev/null
+++ b/apps/web/components/project/ProjectMemberPanel.tsx
@@ -0,0 +1,105 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { ShieldCheck, Trash2, UserPlus } from 'lucide-react';
+import { api } from '@/lib/api';
+import { useAuthStore } from '@/stores/useAuthStore';
+import { useMemberStore } from '@/stores/useMemberStore';
+
+type ProjectRole = 'owner' | 'admin' | 'member' | 'viewer';
+
+interface ProjectMemberRow {
+  id: string;
+  projectId: string;
+  userId: string;
+  role: ProjectRole;
+  user?: { id: string; name: string; email?: string };
+}
+
+const ROLE_LABEL: Record<ProjectRole, string> = {
+  owner: 'Owner',
+  admin: 'Admin',
+  member: 'Member',
+  viewer: 'Viewer',
+};
+
+export function ProjectMemberPanel({ projectId }: { projectId: string }) {
+  const user = useAuthStore((s) => s.user);
+  const { members, fetchMembers } = useMemberStore();
+  const [rows, setRows] = useState<ProjectMemberRow[]>([]);
+  const [selectedUserId, setSelectedUserId] = useState('');
+  const [selectedRole, setSelectedRole] = useState<ProjectRole>('member');
+  const actorId = user?.id ?? '';
+
+  const reload = async () => {
+    if (!projectId) return;
+    const data = await api.get<ProjectMemberRow[]>(`/projects/${projectId}/members`);
+    setRows(data);
+  };
+
+  useEffect(() => {
+    void fetchMembers().catch(() => {});
+    void reload().catch(() => {});
+  }, [projectId]);
+
+  const add = async () => {
+    if (!actorId || !selectedUserId) return;
+    await api.post(`/projects/${projectId}/members`, { actorId, userId: selectedUserId, role: selectedRole });
+    setSelectedUserId('');
+    await reload();
+  };
+
+  const updateRole = async (member: ProjectMemberRow, role: ProjectRole) => {
+    if (!actorId) return;
+    await api.patch(`/projects/${projectId}/members/${member.userId}/role`, { actorId, role });
+    await reload();
+  };
+
+  const remove = async (member: ProjectMemberRow) => {
+    if (!actorId) return;
+    await api.deleteWithBody(`/projects/${projectId}/members/${member.userId}`, { actorId });
+    await reload();
+  };
+
+  const existingUserIds = new Set(rows.map((row) => row.userId));
+  const candidates = members.filter((member) => !existingUserIds.has(member.id));
+
+  return (
+    <div className="rounded-lg border border-[var(--line)] bg-[var(--bg-card)] p-4">
+      <div className="mb-3 flex items-center gap-1.5 text-[12px] font-semibold text-[var(--ink)]">
+        <ShieldCheck className="h-4 w-4 text-[var(--accent)]" /> 项目成员治理
+      </div>
+      <div className="mb-3 grid grid-cols-[1fr_108px_auto] gap-2">
+        <select value={selectedUserId} onChange={(event) => setSelectedUserId(event.target.value)} className="h-8 rounded-md border border-[var(--line)] bg-[var(--bg)] px-2 text-[12px]">
+          <option value="">选择成员</option>
+          {candidates.map((member) => <option key={member.id} value={member.id}>{member.name}</option>)}
+        </select>
+        <select value={selectedRole} onChange={(event) => setSelectedRole(event.target.value as ProjectRole)} className="h-8 rounded-md border border-[var(--line)] bg-[var(--bg)] px-2 text-[12px]">
+          {Object.entries(ROLE_LABEL).map(([role, label]) => <option key={role} value={role}>{label}</option>)}
+        </select>
+        <button onClick={add} disabled={!selectedUserId} className="inline-flex h-8 items-center gap-1 rounded-md bg-[var(--accent)] px-3 text-[12px] font-medium text-white disabled:opacity-50">
+          <UserPlus className="h-3 w-3" /> 添加
+        </button>
+      </div>
+
+      <div className="divide-y divide-[var(--line)] rounded-md border border-[var(--line)]">
+        {rows.length === 0 ? (
+          <div className="px-3 py-6 text-center text-[12px] text-[var(--ink-muted)]">暂无项目成员</div>
+        ) : rows.map((row) => (
+          <div key={row.id} className="grid grid-cols-[1fr_112px_32px] items-center gap-2 px-3 py-2">
+            <div className="min-w-0">
+              <div className="truncate text-[12px] font-medium text-[var(--ink)]">{row.user?.name ?? row.userId}</div>
+              <div className="truncate text-[10px] text-[var(--ink-muted)]">{row.user?.email ?? row.userId}</div>
+            </div>
+            <select value={row.role} onChange={(event) => updateRole(row, event.target.value as ProjectRole).catch(() => {})} className="h-7 rounded-md border border-[var(--line)] bg-[var(--bg)] px-2 text-[11px]">
+              {Object.entries(ROLE_LABEL).map(([role, label]) => <option key={role} value={role}>{label}</option>)}
+            </select>
+            <button onClick={() => remove(row).catch(() => {})} className="rounded p-1.5 text-[var(--ink-muted)] hover:bg-red-50 hover:text-red-600" title="移除成员">
+              <Trash2 className="h-3.5 w-3.5" />
+            </button>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}
diff --git a/apps/web/components/requirement/RequirementDetail.tsx b/apps/web/components/requirement/RequirementDetail.tsx
index 04f057c..476c207 100644
--- a/apps/web/components/requirement/RequirementDetail.tsx
+++ b/apps/web/components/requirement/RequirementDetail.tsx
@@ -1,6 +1,7 @@
 'use client';
 
 import { X } from 'lucide-react';
+import { CommentPanel } from '@/components/comment/CommentPanel';
 import type { Requirement, DictItem, SourceTarget } from '@/lib/requirement';
 import { REQ_STATUS_LABEL, REQ_STATUS_COLOR, SOURCE_TYPE_LABEL } from '@/lib/requirement';
 
@@ -114,6 +115,16 @@ export function RequirementDetail({
               <InfoItem label="来源对象" value={sourceTargetName} />
             </div>
           </DetailSection>
+
+          <section className="border-b border-[var(--line)] px-5 py-4 last:border-b-0">
+            <CommentPanel
+              entityType="requirement"
+              entityId={req.id}
+              entityVersionId={req.versionId}
+              projectId={req.projectId}
+              versionId={req.versionId}
+            />
+          </section>
         </div>
       </div>
     </div>
diff --git a/apps/web/components/test-case/TestCaseDetailDrawer.tsx b/apps/web/components/test-case/TestCaseDetailDrawer.tsx
index af6fc71..61fbc08 100644
--- a/apps/web/components/test-case/TestCaseDetailDrawer.tsx
+++ b/apps/web/components/test-case/TestCaseDetailDrawer.tsx
@@ -5,6 +5,7 @@ import { X, AlertTriangle, Link2, ChevronRight, Bug as BugIcon, Trash2, ArrowRig
 import { TestCaseStatusBadge } from './TestCaseStatusBadge';
 import { BugStatusBadge } from '@/components/bug/BugStatusBadge';
 import { ActivityLogPanel } from '@/components/ActivityLogPanel';
+import { CommentPanel } from '@/components/comment/CommentPanel';
 import { useTestCaseStore } from '@/stores/useTestCaseStore';
 import { useBugStore } from '@/stores/useBugStore';
 import { useRequirementStore } from '@/stores/useRequirementStore';
@@ -328,6 +329,13 @@ export function TestCaseDetailDrawer({ testCaseId, onClose, onCreateBug, context
           </div>
 
           <ActivityLogPanel sourceType="test_case" sourceId={tc.id} />
+          <CommentPanel
+            entityType="test_case"
+            entityId={tc.id}
+            entityVersionId={tc.versionId}
+            versionId={tc.versionId}
+            readOnly={readOnly}
+          />
         </div>
       </div>
     </div>
diff --git a/apps/web/components/version/PlanDetailDrawer.tsx b/apps/web/components/version/PlanDetailDrawer.tsx
index 0a7bac8..27c2859 100644
--- a/apps/web/components/version/PlanDetailDrawer.tsx
+++ b/apps/web/components/version/PlanDetailDrawer.tsx
@@ -7,6 +7,7 @@ import { useRequirementStore } from '@/stores/useRequirementStore';
 import { useMemberStore } from '@/stores/useMemberStore';
 import { useAuthStore } from '@/stores/useAuthStore';
 import { FilterSelect } from '@/components/FilterSelect';
+import { CommentPanel } from '@/components/comment/CommentPanel';
 import {
   getResearchDirectionProgressSummary,
   getRequirementCoverageSummary,
@@ -242,6 +243,14 @@ export function PlanDetailDrawer({ planId, onClose, contextLabel, readOnly = fal
 
           <PlanLogTimeline logs={plan.logs} className="border-l-0 border-t border-[var(--line)] pt-4 pl-0" />
 
+          <CommentPanel
+            entityType="version_plan"
+            entityId={plan.id}
+            entityVersionId={plan.versionId}
+            versionId={plan.versionId}
+            readOnly={readOnly}
+          />
+
           {/* Result */}
           {plan.status === 'completed' && plan.resultUrl && (
             <div className="rounded-lg bg-[var(--bg-subtle)] p-3">
diff --git a/apps/web/lib/api.ts b/apps/web/lib/api.ts
index dd2ebf0..0f82bb8 100644
--- a/apps/web/lib/api.ts
+++ b/apps/web/lib/api.ts
@@ -90,6 +90,8 @@ export const api = {
   patch: <T>(path: string, data: unknown) =>
     request<T>(path, { method: 'PATCH', body: JSON.stringify(data) }),
   delete: <T>(path: string) => request<T>(path, { method: 'DELETE' }),
+  deleteWithBody: <T>(path: string, data: unknown) =>
+    request<T>(path, { method: 'DELETE', body: JSON.stringify(data) }),
   postRaw: async <T>(path: string, data: unknown, timeoutMs = 120000): Promise<T> => {
     // 调用 AI 类长耗时接口时使用，跳过 checkApi 短路（确保走真实请求）
     const controller = new AbortController();
diff --git a/apps/web/lib/comment-mentions.test.ts b/apps/web/lib/comment-mentions.test.ts
new file mode 100644
index 0000000..4c4ecf3
--- /dev/null
+++ b/apps/web/lib/comment-mentions.test.ts
@@ -0,0 +1,20 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { extractMentionNames, mergeMentionMemberIds } from './comment-mentions';
+
+test('extractMentionNames reads @memberName mentions from comment content', () => {
+  assert.deepEqual(extractMentionNames('请 @Alice 和 @张三 看一下'), ['Alice', '张三']);
+});
+
+test('mergeMentionMemberIds keeps text mention matches before explicit selection and dedupes', () => {
+  const ids = mergeMentionMemberIds({
+    content: '请 @Alice 看一下',
+    explicitMemberIds: ['m-bob', 'm-alice'],
+    members: [
+      { id: 'm-alice', name: 'Alice' },
+      { id: 'm-bob', name: 'Bob' },
+    ],
+  });
+
+  assert.deepEqual(ids, ['m-alice', 'm-bob']);
+});
diff --git a/apps/web/lib/comment-mentions.ts b/apps/web/lib/comment-mentions.ts
new file mode 100644
index 0000000..53bd52a
--- /dev/null
+++ b/apps/web/lib/comment-mentions.ts
@@ -0,0 +1,36 @@
+export interface CommentMentionMember {
+  id: string;
+  name: string;
+}
+
+export interface MergeMentionMemberIdsInput {
+  content: string;
+  explicitMemberIds: string[];
+  members: CommentMentionMember[];
+}
+
+export function extractMentionNames(content: string): string[] {
+  const names: string[] = [];
+  const pattern = /@([\p{L}\p{N}_\-.]+)/gu;
+  for (const match of content.matchAll(pattern)) {
+    if (match[1]) names.push(match[1]);
+  }
+  return names;
+}
+
+export function mergeMentionMemberIds(input: MergeMentionMemberIdsInput): string[] {
+  const ids = new Set<string>();
+  const names = new Set(extractMentionNames(input.content).map(normalizeName));
+  for (const member of input.members) {
+    if (names.has(normalizeName(member.name))) ids.add(member.id);
+  }
+  for (const id of input.explicitMemberIds) {
+    const normalized = id.trim();
+    if (normalized) ids.add(normalized);
+  }
+  return Array.from(ids);
+}
+
+function normalizeName(name: string): string {
+  return name.trim().toLowerCase();
+}
diff --git a/apps/web/lib/notification.test.ts b/apps/web/lib/notification.test.ts
new file mode 100644
index 0000000..dd845ac
--- /dev/null
+++ b/apps/web/lib/notification.test.ts
@@ -0,0 +1,20 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { countUnreadNotifications, sortNotificationsNewestFirst } from './notification';
+
+test('countUnreadNotifications counts only rows without readAt', () => {
+  assert.equal(countUnreadNotifications([
+    { id: 'n-1', readAt: null } as any,
+    { id: 'n-2', readAt: '2026-07-08T08:00:00.000Z' } as any,
+    { id: 'n-3' } as any,
+  ]), 2);
+});
+
+test('sortNotificationsNewestFirst keeps newest createdAt first', () => {
+  const sorted = sortNotificationsNewestFirst([
+    { id: 'old', createdAt: '2026-07-07T08:00:00.000Z' } as any,
+    { id: 'new', createdAt: '2026-07-08T08:00:00.000Z' } as any,
+  ]);
+
+  assert.deepEqual(sorted.map((item) => item.id), ['new', 'old']);
+});
diff --git a/apps/web/lib/notification.ts b/apps/web/lib/notification.ts
new file mode 100644
index 0000000..fc27f51
--- /dev/null
+++ b/apps/web/lib/notification.ts
@@ -0,0 +1,32 @@
+export type NotificationType = 'assignment' | 'mention' | 'risk_alert' | 'overdue_item';
+
+export interface NotificationRecord {
+  id: string;
+  recipientId: string;
+  actorId?: string | null;
+  type: NotificationType;
+  title: string;
+  body?: string;
+  resourceType: string;
+  resourceId: string;
+  resourceVersionId?: string | null;
+  productId?: string | null;
+  projectId?: string | null;
+  versionId?: string | null;
+  metadata?: Record<string, unknown>;
+  readAt?: string | null;
+  createdAt: string;
+}
+
+export function countUnreadNotifications(items: Pick<NotificationRecord, 'readAt'>[]): number {
+  return items.filter((item) => !item.readAt).length;
+}
+
+export function sortNotificationsNewestFirst<T extends Pick<NotificationRecord, 'createdAt'>>(items: T[]): T[] {
+  return [...items].sort((a, b) => dateValue(b.createdAt) - dateValue(a.createdAt));
+}
+
+function dateValue(value: string): number {
+  const time = new Date(value).getTime();
+  return Number.isFinite(time) ? time : 0;
+}
diff --git a/apps/web/lib/permissions.ts b/apps/web/lib/permissions.ts
index 9bf95af..e4f445a 100644
--- a/apps/web/lib/permissions.ts
+++ b/apps/web/lib/permissions.ts
@@ -54,6 +54,22 @@ export const PERMISSION_GROUPS: PermissionGroup[] = [
   },
   { module: 'member', moduleLabel: '成员', category: 'main', actions: std4('member') },
   { module: 'role', moduleLabel: '角色', category: 'main', actions: std4('role') },
+  {
+    module: 'management',
+    moduleLabel: '管理驾驶舱',
+    category: 'main',
+    actions: [
+      { action: 'view', label: '查看', permission: 'management:view' },
+    ],
+  },
+  {
+    module: 'governance',
+    moduleLabel: '治理设置',
+    category: 'main',
+    actions: [
+      { action: 'manage', label: '管理', permission: 'governance:manage' },
+    ],
+  },
   { module: 'version.req', moduleLabel: '需求 Tab', category: 'version_tab', actions: stdTab('version.req') },
   { module: 'version.research', moduleLabel: '调研 Tab', category: 'version_tab', actions: stdTab('version.research') },
   { module: 'version.product_plan', moduleLabel: '产品方案 Tab', category: 'version_tab', actions: stdTab('version.product_plan') },
@@ -76,6 +92,7 @@ export const DEFAULT_ROLE_PERMISSIONS: Record<string, string[]> = {
     ...std4('requirement').map((a) => a.permission),
     'version.req:view', 'version.req:manage',
     'version.product_plan:view', 'version.product_plan:manage',
+    'management:view',
     'xiaobao.warning:view', 'xiaobao.warning:manage',
     'overtime:view', 'member:view', 'role:view',
     'version.research:view', 'version.ui_plan:view', 'version.devtask:view',
diff --git a/apps/web/stores/useCommentStore.ts b/apps/web/stores/useCommentStore.ts
new file mode 100644
index 0000000..9315b9b
--- /dev/null
+++ b/apps/web/stores/useCommentStore.ts
@@ -0,0 +1,79 @@
+'use client';
+
+import { create } from 'zustand';
+import { api } from '@/lib/api';
+import type { CommentEntityType } from '@/components/comment/CommentPanel';
+
+export interface CommentRecord {
+  id: string;
+  entityType: CommentEntityType;
+  entityId: string;
+  entityVersionId?: string | null;
+  authorId: string;
+  content: string;
+  mentionedMemberIds?: string[];
+  createdAt: string;
+  deletedAt?: string | null;
+}
+
+interface CreateCommentInput {
+  actorId: string;
+  entityType: CommentEntityType;
+  entityId: string;
+  entityVersionId?: string | null;
+  productId?: string | null;
+  projectId?: string | null;
+  versionId?: string | null;
+  content: string;
+  mentionMemberIds?: string[];
+}
+
+interface CommentState {
+  commentsByKey: Record<string, CommentRecord[]>;
+  loadingKeys: string[];
+  fetchComments: (entityType: CommentEntityType, entityId: string) => Promise<void>;
+  createComment: (input: CreateCommentInput) => Promise<void>;
+  deleteComment: (entityType: CommentEntityType, entityId: string, id: string, actorId: string) => Promise<void>;
+}
+
+export function commentKey(entityType: CommentEntityType, entityId: string) {
+  return `${entityType}:${entityId}`;
+}
+
+export const useCommentStore = create<CommentState>((set, get) => ({
+  commentsByKey: {},
+  loadingKeys: [],
+
+  fetchComments: async (entityType, entityId) => {
+    const key = commentKey(entityType, entityId);
+    set({ loadingKeys: [...get().loadingKeys.filter((item) => item !== key), key] });
+    const params = new URLSearchParams({ entityType, entityId });
+    const rows = await api.get<CommentRecord[]>(`/comments?${params.toString()}`);
+    set({
+      commentsByKey: { ...get().commentsByKey, [key]: rows },
+      loadingKeys: get().loadingKeys.filter((item) => item !== key),
+    });
+  },
+
+  createComment: async (input) => {
+    const row = await api.post<CommentRecord>('/comments', input);
+    const key = commentKey(input.entityType, input.entityId);
+    set({
+      commentsByKey: {
+        ...get().commentsByKey,
+        [key]: [...(get().commentsByKey[key] ?? []), row],
+      },
+    });
+  },
+
+  deleteComment: async (entityType, entityId, id, actorId) => {
+    const row = await api.deleteWithBody<CommentRecord>(`/comments/${id}`, { actorId });
+    const key = commentKey(entityType, entityId);
+    set({
+      commentsByKey: {
+        ...get().commentsByKey,
+        [key]: (get().commentsByKey[key] ?? []).map((item) => item.id === id ? row : item).filter((item) => !item.deletedAt),
+      },
+    });
+  },
+}));
diff --git a/apps/web/stores/useNotificationStore.ts b/apps/web/stores/useNotificationStore.ts
new file mode 100644
index 0000000..cf54785
--- /dev/null
+++ b/apps/web/stores/useNotificationStore.ts
@@ -0,0 +1,52 @@
+'use client';
+
+import { create } from 'zustand';
+import { api } from '@/lib/api';
+import { countUnreadNotifications, sortNotificationsNewestFirst, type NotificationRecord } from '@/lib/notification';
+
+interface NotificationState {
+  notifications: NotificationRecord[];
+  loading: boolean;
+  loadedFor?: string;
+  unreadCount: number;
+  fetchNotifications: (recipientId: string, options?: { unreadOnly?: boolean }) => Promise<void>;
+  markRead: (id: string, recipientId: string) => Promise<void>;
+  markAllRead: (recipientId: string) => Promise<void>;
+}
+
+export const useNotificationStore = create<NotificationState>((set, get) => ({
+  notifications: [],
+  loading: false,
+  loadedFor: undefined,
+  unreadCount: 0,
+
+  fetchNotifications: async (recipientId, options) => {
+    if (!recipientId) return;
+    set({ loading: true });
+    const params = new URLSearchParams({ recipientId });
+    if (options?.unreadOnly) params.set('unreadOnly', 'true');
+    const rows = await api.get<NotificationRecord[]>(`/notifications?${params.toString()}`);
+    const notifications = sortNotificationsNewestFirst(rows);
+    set({
+      notifications,
+      unreadCount: countUnreadNotifications(notifications),
+      loadedFor: recipientId,
+      loading: false,
+    });
+  },
+
+  markRead: async (id, recipientId) => {
+    await api.patch(`/notifications/${id}/read`, { recipientId });
+    const notifications = get().notifications.map((item) =>
+      item.id === id ? { ...item, readAt: item.readAt ?? new Date().toISOString() } : item,
+    );
+    set({ notifications, unreadCount: countUnreadNotifications(notifications) });
+  },
+
+  markAllRead: async (recipientId) => {
+    await api.patch('/notifications/read-all', { recipientId });
+    const readAt = new Date().toISOString();
+    const notifications = get().notifications.map((item) => item.readAt ? item : { ...item, readAt });
+    set({ notifications, unreadCount: 0 });
+  },
+}));
diff --git a/apps/web/stores/useXiaobaoRiskStore.ts b/apps/web/stores/useXiaobaoRiskStore.ts
index 4587c73..930625a 100644
--- a/apps/web/stores/useXiaobaoRiskStore.ts
+++ b/apps/web/stores/useXiaobaoRiskStore.ts
@@ -1,6 +1,8 @@
 'use client';
 import { create } from 'zustand';
 import { loadServerData, saveServerData, SERVER_DATA_CACHE_MS } from '@/lib/server-data';
+import { api } from '@/lib/api';
+import { useMemberStore } from './useMemberStore';
 import {
   mergeDailySnapshotCacheForSave,
   mergeInsightCacheForSave,
@@ -74,6 +76,7 @@ export const useXiaobaoRiskStore = create<XiaobaoRiskState>((set, get) => ({
       const snapshots = mergeDailySnapshotCacheForSave(get().snapshots, Array.isArray(remote) ? remote : [], item);
       set({ snapshots, error: undefined });
       await saveServerData('xiaobao-risk-snapshots', snapshots);
+      void notifyRiskManagers(item).catch(() => {});
     });
     snapshotSaveQueue = task.catch(() => undefined);
     try {
@@ -119,3 +122,32 @@ export const useXiaobaoRiskStore = create<XiaobaoRiskState>((set, get) => ({
     set({ pendingInsightKeys: get().pendingInsightKeys.filter((item) => item !== key) });
   },
 }));
+
+async function notifyRiskManagers(item: XiaobaoRiskSnapshot) {
+  if (!['at_risk', 'likely_delayed', 'blocked'].includes(item.riskLevel)) return;
+  const memberStore = useMemberStore.getState();
+  if (!memberStore.loaded) {
+    await memberStore.fetchMembers().catch(() => undefined);
+  }
+  const state = useMemberStore.getState();
+  const roleMap = new Map(state.roles.map((role) => [role.id, role]));
+  const recipients = state.members.filter((member) => {
+    const permissions = roleMap.get(member.roleId)?.permissions ?? [];
+    return permissions.includes('*') || permissions.includes('xiaobao.warning:manage');
+  });
+  await Promise.all(recipients.map((member) => api.post('/notifications', {
+    recipientId: member.id,
+    actorId: 'xiaobao',
+    type: 'risk_alert',
+    title: '小宝预警更新',
+    body: `版本 ${item.versionId} 当前风险 ${item.riskLevel}，风险分 ${item.riskScore}`,
+    resourceType: 'version',
+    resourceId: item.versionId,
+    versionId: item.versionId,
+    metadata: {
+      riskLevel: item.riskLevel,
+      riskScore: item.riskScore,
+      riskSignature: `${item.versionId}:${item.date}:${item.riskScore}:${item.riskLevel}`,
+    },
+  }).catch(() => undefined)));
+}