Dedupe same-name artifacts into a latest-plus-versions group in the files panel

Why: A single run re-registering one deliverable left three identical
report files side by side (storage is append-only by design and the
prompt even teaches revisions-as-new-versions); the panel listed every
row. Per the owner ruling, storage keeps all versions - the panel now
groups by name, shows only the latest row, badges multi-version groups
with the count, and expands (Collapsible primitive) to list history
with per-version preview/download.

Evidence: tsc clean; vitest 99/99 including new grouping tests (latest
selection by updatedAt, ordering, cross-name independence, empty);
knip unchanged.

Impact: Frontend-only display logic; no storage, API, or prompt
changes.

Refs: Dev task fix/artifact-version-dedupe

src/api.ts

@@ -129,6 +129,21 @@ export const api = {
   savePromptCommand: (body: { name: string; title: string; template: string }) => auth.fetch(`${BASE}/api/prompt-commands`, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body) }).then(r => json(r)),
   deletePromptCommand: (id: string) => auth.fetch(`${BASE}/api/prompt-commands/${id}`, { method: 'DELETE' }),
   listWorkspaces: () => auth.fetch(`${BASE}/api/workspaces`).then(r => r.json()) as Promise<{ id: string; title: string; icon?: string; shortcut?: string; badgeTool?: string; body?: any[]; refreshTool?: string }[]>,
+
+  // ---- U4：RDM 命令总线封装（POST /api/commands/{id}，同 RDM web 的 command 路由） ----
+  // receipt 解包：rejected 抛错；confirm-card 抛提示（审计面只读命令不应触发）。
+  rdmCommand: <T = any>(id: string, params: Record<string, unknown> = {}): Promise<T> =>
+    auth.fetch(`${BASE}/api/commands/${encodeURIComponent(id)}`, {
+      method: 'POST', headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ params }),
+    }).then(r => json<{ receipt?: { state?: string; error?: string; message?: string }; card?: unknown; payload?: T } | T>(r))
+      .then(out => {
+        const envelope = out as { receipt?: { state?: string; error?: string; message?: string }; card?: unknown; payload?: T }
+        if (envelope?.receipt?.state === 'rejected') throw new Error(envelope.receipt.error || envelope.receipt.message || '命令被拒绝')
+        if (envelope?.card) throw new Error('高危命令已生成确认卡——请在对话中确认执行')
+        if (envelope && envelope.payload !== undefined) return envelope.payload
+        return out as T
+      }),
 }
 
 // ---- SSE 客户端：Last-Event-ID 游标续传；断线自动重连 ----

src/artifactGrouping.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it } from 'vitest'
+import { groupArtifactsByName } from './artifactGrouping'
+import type { Artifact } from './contracts'
+
+// 2026-10-11 实测事故：一次 run 内 register_artifact 三次 → 文件面板三份同名
+// 转写报告并列。修复语义（用户裁定）：存储保留版本、界面按名称分组去重。
+
+function art(id: string, name: string, updatedAt: string, size = 40000): Artifact {
+  return { id, projectId: 'p1', name, kind: 'document', size, createdAt: updatedAt, updatedAt }
+}
+
+describe('groupArtifactsByName', () => {
+  it('同名 3 行归一组：latest 为最新，versions 新→旧', () => {
+    const g = groupArtifactsByName([
+      art('a1', '报告.docx', '2026-10-11T15:22:20Z'),
+      art('a2', '报告.docx', '2026-10-11T15:24:06Z'),
+      art('a3', '报告.docx', '2026-10-11T15:23:38Z'),
+      art('b1', '其他.md', '2026-10-11T15:20:00Z', 100),
+    ])
+    expect(g).toHaveLength(2)
+    const grp = g.find(x => x.latest.name === '报告.docx')!
+    expect(grp.latest.id).toBe('a2') // 最新 15:24:06
+    expect(grp.versions).toHaveLength(3)
+    expect(grp.versions.map(v => v.id)).toEqual(['a2', 'a3', 'a1'])
+    expect(g.find(x => x.latest.name === '其他.md')!.versions).toHaveLength(1)
+  })
+
+  it('不同名互不影响；空列表返回空', () => {
+    const g = groupArtifactsByName([art('x', 'a.md', 'T1'), art('y', 'b.md', 'T2')])
+    expect(g).toHaveLength(2)
+    expect(groupArtifactsByName([])).toEqual([])
+  })
+})

src/artifactGrouping.ts

@@ -0,0 +1,23 @@
+// 同名工件版本分组（2026-10-11 实测事故的修复语义，用户裁定：存储保留版本、
+// 界面去重）：组内按 updated_at 新→旧，latest 为面板显示行，其余为历史版本。
+import type { Artifact } from './contracts'
+
+export interface ArtifactGroup {
+  latest: Artifact
+  versions: Artifact[]
+}
+
+export function groupArtifactsByName(list: Artifact[]): ArtifactGroup[] {
+  const byName = new Map<string, Artifact[]>()
+  for (const a of list) {
+    const arr = byName.get(a.name) ?? []
+    arr.push(a)
+    byName.set(a.name, arr)
+  }
+  const out: ArtifactGroup[] = []
+  for (const versions of byName.values()) {
+    versions.sort((x, y) => (x.updatedAt < y.updatedAt ? 1 : x.updatedAt > y.updatedAt ? -1 : 0))
+    out.push({ latest: versions[0], versions })
+  }
+  return out
+}

src/components/ArtifactsPanel.tsx

@@ -3,17 +3,24 @@
 import { useState } from 'react'
 import { store, useStore } from '../store'
 import { api } from '../api'
-import { Icon } from '@ui'
+import { Collapsible, Icon } from '@ui'
 import { artifactIcon, humanSize } from '../messageparts'
+import type { Artifact } from '../contracts'
+import { groupArtifactsByName } from '../artifactGrouping'
 
 export function ArtifactsPanel() {
   const artifacts = useStore(s => s.artifacts)
+  const surfaces = useStore(s => s.surfaces)
   const [q, setQ] = useState('')
   const [kind, setKind] = useState<'all' | 'document' | 'data' | 'image'>('all')
 
   const kinds = ['all', 'document', 'data', 'image'] as const
   const visible = artifacts.filter(a =>
     (kind === 'all' || a.kind === kind) && a.name.toLowerCase().includes(q.toLowerCase()))
+  // 同名工件 = 同一交付物的版本序列（存储保留全量）：面板按名称分组去重，
+  // 只显示最新版；组>1 时可展开看历史版本。2026-10-11 实测 3 份同名转写报告
+  // 并列的直接修复（存储与提示词语义「修订=新版本」保持不变）。
+  const groups = groupArtifactsByName(visible)
 
   return (
     <div className="artifacts-panel">
@@ -32,26 +39,47 @@ export function ArtifactsPanel() {
           }} />
         </label>
       </div>
+      {surfaces.length > 0 && (
+        <div className="ap-surfaces" data-ap-surfaces>
+          <div className="ap-section-title">生成页面</div>
+          {surfaces.map(sv => (
+            <div key={String(sv.identity.surfaceId)} className="artifact-row" data-surface-row={String(sv.identity.surfaceId)}
+              onClick={() => store.openSurface(String(sv.identity.surfaceId))} title={`打开页面 ${sv.spec?.title ?? ''}`}>
+              <span className="ar-icon"><Icon name="grid" size={15} /></span>
+              <span className="ar-main">
+                <span className="name">{sv.spec?.title || '（未命名页面）'}</span>
+                <span className="meta">页面 · 修订 {sv.revision} · {sv.identity.pluginId}</span>
+              </span>
+            </div>
+          ))}
+        </div>
+      )}
       {artifacts.length === 0
         ? <div className="empty-note">暂无文件——上传附件或让模型产出文档（mock：#doc）；这里可浏览、预览、下载</div>
         : visible.length === 0
           ? <div className="empty-note">没有匹配「{q}」的文件</div>
-          : visible.map(a => (
-            // 预览落位在第三栏「文件」入口：requestPreview 会切到预览子视图。
-            <div key={a.id} className="artifact-row" data-artifact-row={a.id}
-              onClick={() => store.requestPreview(a)} title={`预览 ${a.name}`}>
-              <span className="ar-icon"><Icon name={artifactIcon(a.name, a.kind)} size={15} /></span>
-              <span className="ar-main">
-                <span className="name">{a.name}</span>
-                <span className="meta">{a.kind} · {humanSize(a.size) || '—'} · {shortTime(a.updatedAt)}</span>
-              </span>
-              <span className="ar-acts">
-                <button className="icon-btn" title="展开预览（铺满主区）" onClick={e => { e.stopPropagation(); store.requestPreview(a); store.setUI({ previewExpanded: true }) }}><Icon name="maximize" size={14} /></button>
-                <a className="icon-btn" title="下载" href={api.artifactDownloadUrl(a.id)} download={a.name}
-                  onClick={e => e.stopPropagation()}><Icon name="download" size={14} /></a>
-              </span>
-            </div>
-          ))}
+          : groups.map(g => g.versions.length === 1
+            ? <ArtifactRow key={g.latest.id} a={g.latest} />
+            : <Collapsible key={g.latest.id} id={'artv:' + g.latest.id}
+                trigger={
+                  <div className="artifact-row artifact-group" data-artifact-group={g.latest.id}>
+                    <ArtifactRowInner a={g.latest} badge={`${g.versions.length} 版`} />
+                  </div>
+                }>
+                {g.versions.slice(1).map(v => (
+                  <div key={v.id} className="artifact-row artifact-version" data-artifact-version={v.id}
+                    onClick={() => store.requestPreview(v)} title={`预览历史版本 ${v.name}`}>
+                    <span className="ar-icon"><Icon name="clock" size={13} /></span>
+                    <span className="ar-main">
+                      <span className="meta">v{shortTime(v.updatedAt)} · {humanSize(v.size) || '—'}</span>
+                    </span>
+                    <span className="ar-acts">
+                      <a className="icon-btn" title="下载此版本" href={api.artifactDownloadUrl(v.id)} download={v.name}
+                        onClick={e => e.stopPropagation()}><Icon name="download" size={13} /></a>
+                    </span>
+                  </div>
+                ))}
+              </Collapsible>)}
     </div>
   )
 }
@@ -65,3 +93,32 @@ function shortTime(iso: string): string {
       : d.toLocaleDateString([], { month: '2-digit', day: '2-digit' })
   } catch { return '' }
 }
+
+function ArtifactRow({ a }: { a: Artifact }) {
+  return (
+    // 预览落位在第三栏「文件」入口：requestPreview 会切到预览子视图。
+    <div className="artifact-row" data-artifact-row={a.id}
+      onClick={() => store.requestPreview(a)} title={`预览 ${a.name}`}>
+      <ArtifactRowInner a={a} />
+      <span className="ar-acts">
+        <button className="icon-btn" title="展开预览（铺满主区）" onClick={e => { e.stopPropagation(); store.requestPreview(a); store.setUI({ previewExpanded: true }) }}><Icon name="maximize" size={14} /></button>
+        <a className="icon-btn" title="下载" href={api.artifactDownloadUrl(a.id)} download={a.name}
+          onClick={e => e.stopPropagation()}><Icon name="download" size={14} /></a>
+      </span>
+    </div>
+  )
+}
+
+function ArtifactRowInner({ a, badge }: { a: Artifact; badge?: string }) {
+  return (
+    <>
+      <span className="ar-icon"><Icon name={artifactIcon(a.name, a.kind)} size={15} /></span>
+      <span className="ar-main">
+        <span className="name">{a.name}{badge ? <span className="ver-badge" data-ver-badge>{badge}</span> : null}</span>
+        <span className="meta">{a.kind} · {humanSize(a.size) || '—'} · {shortTime(a.updatedAt)}</span>
+      </span>
+    </>
+  )
+}
+
+

src/components/PreviewPane.tsx

@@ -56,7 +56,7 @@ export function PreviewPane() {
         </div>
         <div className="preview-pane-body">
           {surfaceSnap
-            ? <SurfaceView snapshot={surfaceSnap} onAction={(actionId, payload) => store.handleSurfaceAction(String(surfaceSnap?.identity.surfaceId), actionId, payload as Record<string, unknown>)} docBridge={{ onOpenDoc: docId => {
+            ? <SurfaceView snapshot={surfaceSnap} onAction={id => store.handleSurfaceAction(String(surfaceSnap?.identity.surfaceId), id, {})} docBridge={{ onOpenDoc: docId => {
                 const art = artifacts.find(a => a.id === docId)
                 if (art) store.requestPreview(art)
               } }} />

src/components/RdmAuditWorkspace.tsx

@@ -0,0 +1,467 @@
+// U4：项目追溯审计工作区（四入口）——消费 U3 rdm.inspect.* 命令面。
+// 只读：审批/确认关系仍回原业务流程（D31：弹层不是唯一路径）。
+// 令牌驱动（DESIGN.md）：颜色/字号/圆角仅消费 @ui/tokens.css；折叠用 Collapsible。
+import { useCallback, useEffect, useRef, useState } from 'react'
+import { api } from '../api'
+import { Chip, EmptyState, SectionLabel } from '@ui'
+
+// ---- 类型（U3 ListShell/详情的精简前端契约） ----
+
+interface InspectProject { projectId: string; name: string; canAudit: boolean }
+interface Capabilities { actor: string; projects: InspectProject[]; crossProject: boolean }
+interface CoverageItem { face: string; reason: string }
+interface ListShell<T = any> { items: T[]; nextCursor?: string; hasMore: boolean; truncated: boolean; coverage?: CoverageItem[] }
+interface SummaryData { projectId: string; counts: Record<string, number>; watermark: number; lastOpAt: string; coverage?: CoverageItem[] }
+interface TreeItem { kind: string; id: string; title: string; state?: string }
+interface RelationEntry { layer: string; edgeId?: string; kind?: string; type?: string; state: string; depth?: number; from: any; to: any; conf?: number }
+interface EventDTO { seq: number; at: string; op: string; actor: string; source: string; target: { kind: string; id: string }; detail: string; operationId: string; disclosure: string }
+interface OpGroup { operationId: string; actor: string; at: string; events: EventDTO[] }
+interface ObjectDetail { kind: string; id: string; title?: string; state?: string; versions?: any[]; formal?: any; labels?: any; batch?: string; ver?: number; relations: RelationEntry[]; recentEvents: EventDTO[]; coverage?: CoverageItem[] }
+interface HistoryData { projectId: string; watermark: number; atSeq: number; object?: any; formal?: any; formalMissing?: string; countOnlySnapshots?: number; coverage?: CoverageItem[]; empty?: boolean }
+
+// ---- 工作区主组件 ----
+
+const TABS = [
+  { id: 'summary', label: '概览' },
+  { id: 'materials', label: '资料与文档' },
+  { id: 'trace', label: '关联追溯' },
+  { id: 'timeline', label: '操作记录' },
+] as const
+type TabId = (typeof TABS)[number]['id']
+
+export function RdmAuditWorkspace() {
+  const [caps, setCaps] = useState<Capabilities | null>(null)
+  const [pid, setPid] = useState('')
+  const [tab, setTab] = useState<TabId>('summary')
+  const [error, setError] = useState('')
+
+  useEffect(() => {
+    let cancelled = false
+    api.rdmCommand<Capabilities>('rdm.inspect.capabilities')
+      .then(c => { if (!cancelled) { setCaps(c); if (c.projects.length > 0) setPid(prev => prev || c.projects[0].projectId) } })
+      .catch(e => { if (!cancelled) setError(e.message) })
+    return () => { cancelled = true }
+  }, [])
+
+  const project = caps?.projects.find(p => p.projectId === pid)
+  if (error) return <EmptyState icon="alert">{error}</EmptyState>
+  if (!caps) return <div className="empty-note">加载中…</div>
+  if (caps.projects.length === 0) return <EmptyState icon="folder">无可见研发项目——项目创建者与域管理员可查看追溯审计</EmptyState>
+
+  return (
+    <div className="rdm-audit">
+      <div className="rdm-audit-header">
+        <select className="ui-input rdm-audit-project" value={pid} onChange={e => setPid(e.target.value)} aria-label="选择项目">
+          {caps.projects.map(p => (
+            <option key={p.projectId} value={p.projectId}>{p.name}</option>
+          ))}
+        </select>
+        {project?.canAudit && <Chip tone="ok">可审计</Chip>}
+        {caps.crossProject && <Chip tone="info">跨项目</Chip>}
+      </div>
+      <div className="tabs rdm-audit-tabs" role="tablist">
+        {TABS.map(t => (
+          <button key={t.id} role="tab" aria-selected={tab === t.id}
+            className={`tab${tab === t.id ? ' active' : ''}`}
+            onClick={() => setTab(t.id)}>{t.label}</button>
+        ))}
+      </div>
+      <div className="rdm-audit-body">
+        {tab === 'summary' && <SummaryTab pid={pid} />}
+        {tab === 'materials' && <MaterialsTab pid={pid} />}
+        {tab === 'trace' && <TraceTab pid={pid} />}
+        {tab === 'timeline' && <TimelineTab pid={pid} />}
+      </div>
+    </div>
+  )
+}
+
+// ---- 概览 ----
+
+function SummaryTab({ pid }: { pid: string }) {
+  const [data, setData] = useState<SummaryData | null>(null)
+  const [err, setErr] = useState('')
+  useEffect(() => {
+    let c = false
+    setData(null); setErr('')
+    api.rdmCommand<SummaryData>('rdm.inspect.summary', { projectId: pid })
+      .then(d => { if (!c) setData(d) })
+      .catch(e => { if (!c) setErr(e.message) })
+    return () => { c = true }
+  }, [pid])
+  if (err) return <EmptyState icon="alert">{err}</EmptyState>
+  if (!data) return <div className="empty-note">加载中…</div>
+  const counts = data.counts || {}
+  const entries: [string, string, number][] = [
+    ['切片', 'slices', counts.slices ?? 0],
+    ['章节', 'sections', counts.sections ?? 0],
+    ['文档', 'docs', counts.docs ?? 0],
+    ['生效边', 'edgesActive', counts.edgesActive ?? 0],
+    ['待确认边', 'edgesCandidate', counts.edgesCandidate ?? 0],
+    ['结论', 'conclusions', counts.conclusions ?? 0],
+    ['待办', 'openItems', counts.openItems ?? 0],
+    ['挂起上传', 'uploadsHeld', counts.uploadsHeld ?? 0],
+    ['空缺章节', 'emptySections', counts.emptySections ?? 0],
+  ]
+  return (
+    <div>
+      <SectionLabel>统计（截至水位 {data.watermark}）</SectionLabel>
+      <div className="rdm-audit-cards">
+        {entries.map(([label, , val]) => (
+          <div key={label} className="rdm-audit-card">
+            <div className="rdm-audit-card-num">{val}</div>
+            <div className="rdm-audit-card-label">{label}</div>
+          </div>
+        ))}
+      </div>
+      {data.lastOpAt && <div className="rdm-audit-meta">最近动作：{new Date(data.lastOpAt).toLocaleString('zh-CN')}</div>}
+      {data.coverage && data.coverage.length > 0 && (
+        <CoverageList cov={data.coverage} />
+      )}
+    </div>
+  )
+}
+
+// ---- 资料与文档 ----
+
+function MaterialsTab({ pid }: { pid: string }) {
+  const [kind, setKind] = useState<'notes' | 'docs'>('docs')
+  return (
+    <div className="rdm-audit-materials">
+      <div className="rdm-audit-materials-side">
+        <div className="tabs">
+          <button className={`tab${kind === 'notes' ? ' active' : ''}`} onClick={() => setKind('notes')}>笔记树</button>
+          <button className={`tab${kind === 'docs' ? ' active' : ''}`} onClick={() => setKind('docs')}>文档树</button>
+        </div>
+        <TreeList pid={pid} kind={kind} />
+      </div>
+    </div>
+  )
+}
+
+function TreeList({ pid, kind }: { pid: string; kind: 'notes' | 'docs' }) {
+  const [shell, setShell] = useState<ListShell<TreeItem> | null>(null)
+  const [err, setErr] = useState('')
+  const [selected, setSelected] = useState<TreeItem | null>(null)
+  const [detail, setDetail] = useState<ObjectDetail | null>(null)
+  const genRef = useRef(0)
+
+  useEffect(() => {
+    const gen = ++genRef.current
+    setShell(null); setErr(''); setSelected(null); setDetail(null)
+    api.rdmCommand<ListShell<TreeItem>>('rdm.inspect.tree', { projectId: pid, kind, cursor: '' })
+      .then(s => { if (gen === genRef.current) setShell(s) })
+      .catch(e => { if (gen === genRef.current) setErr(e.message) })
+  }, [pid, kind])
+
+  const loadMore = () => {
+    if (!shell?.nextCursor) return
+    const gen = genRef.current
+    api.rdmCommand<ListShell<TreeItem>>('rdm.inspect.tree', { projectId: pid, kind, cursor: shell.nextCursor })
+      .then(s => { if (gen === genRef.current) setShell(prev => prev ? { ...s, items: [...prev.items, ...s.items] } : s) })
+      .catch(e => { if (gen === genRef.current) setErr(e.message) })
+  }
+
+  const selectNode = (item: TreeItem) => {
+    setSelected(item); setDetail(null)
+    const gen = genRef.current
+    api.rdmCommand<ObjectDetail>('rdm.inspect.object', { projectId: pid, kind: item.kind, id: item.id })
+      .then(d => { if (gen === genRef.current) setDetail(d) })
+      .catch(e => { if (gen === genRef.current) setErr(e.message) })
+  }
+
+  if (err) return <EmptyState icon="alert">{err}</EmptyState>
+  if (!shell) return <div className="empty-note">加载中…</div>
+  if (shell.items.length === 0) return <EmptyState icon="folder">暂无{kind === 'notes' ? '骨架节点' : '文档'}</EmptyState>
+
+  return (
+    <div className="rdm-audit-tree">
+      <div className="rdm-audit-tree-list">
+        {shell.items.map(item => (
+          <button key={item.id} className={`rdm-audit-tree-node${selected?.id === item.id ? ' sel' : ''}`}
+            onClick={() => selectNode(item)}>
+            <span className="rdm-audit-tree-kind">{item.kind}</span>
+            <span className="rdm-audit-tree-title">{item.title}</span>
+            {item.state && <Chip tone={item.state === 'baselined' ? 'ok' : 'plain'}>{item.state}</Chip>}
+          </button>
+        ))}
+        {shell.hasMore && <button className="btn v-ghost rdm-audit-more" onClick={loadMore}>加载更多</button>}
+        {shell.truncated && <div className="rdm-audit-truncated">已截断（深度或数量上限）</div>}
+      </div>
+      {selected && (
+        <div className="rdm-audit-detail">
+          <SectionLabel>对象详情</SectionLabel>
+          {!detail ? <div className="empty-note">加载中…</div> : <ObjectDetailView detail={detail} />}
+        </div>
+      )}
+    </div>
+  )
+}
+
+// ---- 关联追溯 ----
+
+function TraceTab({ pid }: { pid: string }) {
+  const [sel, setSel] = useState<{ kind: string; id: string; title: string } | null>(null)
+  const [relations, setRelations] = useState<RelationEntry[] | null>(null)
+  const [truncated, setTruncated] = useState(false)
+  const [err, setErr] = useState('')
+  const genRef = useRef(0)
+
+  useEffect(() => {
+    if (!sel) return
+    const gen = ++genRef.current
+    setRelations(null); setErr('')
+    api.rdmCommand<ListShell<RelationEntry>>('rdm.inspect.relations', { projectId: pid, kind: sel.kind, id: sel.id, depth: 1 })
+      .then(s => { if (gen === genRef.current) { setRelations(s.items); setTruncated(s.truncated) } })
+      .catch(e => { if (gen === genRef.current) setErr(e.message) })
+  }, [pid, sel])
+
+  // 未选对象时列出章节供选择
+  const [sections, setSections] = useState<TreeItem[]>([])
+  useEffect(() => {
+    if (sel) return
+    let c = false
+    api.rdmCommand<ListShell<TreeItem>>('rdm.inspect.tree', { projectId: pid, kind: 'docs' })
+      .then(s => { if (!c) setSections(s.items.filter(i => i.kind === 'section')) })
+      .catch(() => {})
+    return () => { c = true }
+  }, [pid, sel])
+
+  if (!sel) {
+    return (
+      <div>
+        <SectionLabel>选择对象查看来源与影响</SectionLabel>
+        {sections.length === 0 ? <EmptyState icon="folder">暂无章节</EmptyState> : (
+          <div className="rdm-audit-pick">
+            {sections.map(s => (
+              <button key={s.id} className="btn v-ghost" onClick={() => setSel({ kind: 'section', id: s.id, title: s.title })}>
+                {s.title}
+              </button>
+            ))}
+          </div>
+        )}
+      </div>
+    )
+  }
+
+  const sources = relations?.filter(r => r.to?.id === sel.id && r.to?.kind === sel.kind) ?? []
+  const impacts = relations?.filter(r => r.from?.id === sel.id && r.from?.kind === sel.kind) ?? []
+
+  return (
+    <div>
+      <div className="rdm-audit-trace-head">
+        <button className="btn v-ghost" onClick={() => setSel(null)}>← 返回</button>
+        <strong>{sel.title}</strong>
+        <Chip tone="plain">{sel.kind}:{sel.id}</Chip>
+      </div>
+      {err && <EmptyState icon="alert">{err}</EmptyState>}
+      {!relations && !err && <div className="empty-note">加载中…</div>}
+      {relations && relations.length === 0 && <EmptyState icon="folder">没有已知关联</EmptyState>}
+      {relations && relations.length > 0 && (
+        <div className="rdm-audit-trace-cols">
+          <div className="rdm-audit-trace-col">
+            <SectionLabel>来源依据（{sources.length}）</SectionLabel>
+            {sources.length === 0 ? <div className="empty-note">无来源</div> : sources.map((r, i) => <RelationRow key={i} r={r} />)}
+          </div>
+          <div className="rdm-audit-trace-col">
+            <SectionLabel>影响对象（{impacts.length}）</SectionLabel>
+            {impacts.length === 0 ? <div className="empty-note">无影响</div> : impacts.map((r, i) => <RelationRow key={i} r={r} />)}
+          </div>
+        </div>
+      )}
+      {truncated && <div className="rdm-audit-truncated">已截断（深度或数量上限）</div>}
+    </div>
+  )
+}
+
+function RelationRow({ r }: { r: RelationEntry }) {
+  const other = r.from?.id && r.to?.id ? (r.from?.id < r.to?.id ? r.from : r.to) : (r.from || r.to)
+  return (
+    <div className="rdm-audit-rel">
+      <Chip tone={r.layer === 'compliance' ? 'info' : 'plain'}>{r.layer}</Chip>
+      <span className="rdm-audit-rel-type">{r.type || r.kind || '关联'}</span>
+      <span className="rdm-audit-rel-endpoint">{other?.kind}:{other?.id}{other?.ver ? `@${other.ver}` : ''}</span>
+      <Chip tone={r.state === 'active' ? 'ok' : r.state === 'candidate' ? 'warn' : 'plain'}>{r.state}</Chip>
+    </div>
+  )
+}
+
+// ---- 操作记录（事件时间线） ----
+
+function TimelineTab({ pid }: { pid: string }) {
+  const [items, setItems] = useState<(OpGroup | EventDTO)[]>([])
+  const [cursor, setCursor] = useState('')
+  const [hasMore, setHasMore] = useState(false)
+  const [err, setErr] = useState('')
+  const [filterOp, setFilterOp] = useState('')
+  const [filterActor, setFilterActor] = useState('')
+  const [historyMode, setHistoryMode] = useState(false)
+  const [historySeq, setHistorySeq] = useState(0)
+  const [historyData, setHistoryData] = useState<HistoryData | null>(null)
+  const genRef = useRef(0)
+
+  const load = useCallback((cur: string, replace: boolean) => {
+    const gen = ++genRef.current
+    if (replace) { setItems([]); setErr('') }
+    const params: Record<string, unknown> = { projectId: pid, cursor: cur, limit: 30 }
+    if (filterOp) params.op = filterOp
+    if (filterActor) params.actor = filterActor
+    api.rdmCommand<ListShell<OpGroup | EventDTO>>('rdm.inspect.events', params)
+      .then(s => {
+        if (gen !== genRef.current) return
+        setItems(prev => replace ? s.items : [...prev, ...s.items])
+        setCursor(s.nextCursor || '')
+        setHasMore(s.hasMore)
+      })
+      .catch(e => { if (gen === genRef.current) setErr(e.message) })
+  }, [pid, filterOp, filterActor])
+
+  useEffect(() => { if (!historyMode) load('', true) }, [load, historyMode])
+
+  useEffect(() => {
+    if (!historyMode) { setHistoryData(null); return }
+    const gen = genRef.current
+    setHistoryData(null)
+    const params: Record<string, unknown> = { projectId: pid, atSeq: historySeq || undefined }
+    api.rdmCommand<HistoryData>('rdm.inspect.history', params)
+      .then(d => { if (gen === genRef.current) setHistoryData(d) })
+      .catch(e => { if (gen === genRef.current) setErr(e.message) })
+  }, [pid, historyMode, historySeq])
+
+  return (
+    <div className="rdm-audit-timeline">
+      <div className="rdm-audit-timeline-filters">
+        <input className="ui-input" placeholder="过滤操作者…" value={filterActor}
+          onChange={e => setFilterActor(e.target.value)} />
+        <input className="ui-input" placeholder="过滤操作类型…" value={filterOp}
+          onChange={e => setFilterOp(e.target.value)} />
+        <button className={`btn v-ghost${historyMode ? ' active' : ''}`} onClick={() => setHistoryMode(!historyMode)}>
+          {historyMode ? '← 返回当前' : '历史模式'}
+        </button>
+        {historyMode && (
+          <input className="ui-input rdm-audit-seq" type="number" placeholder="截止 seq…"
+            value={historySeq || ''} onChange={e => setHistorySeq(Number(e.target.value) || 0)} />
+        )}
+      </div>
+
+      {historyMode ? (
+        <div>
+          {!historyData ? <div className="empty-note">加载中…</div> : (
+            <div>
+              <SectionLabel>截至 seq {historyData.atSeq}（当前水位 {historyData.watermark}）</SectionLabel>
+              {historyData.countOnlySnapshots ? <div className="rdm-audit-truncated">含 {historyData.countOnlySnapshots} 个旧计数快照（不可作恢复依据）</div> : null}
+              {historyData.formalMissing ? <div className="empty-note">{historyData.formalMissing}</div> : null}
+              {historyData.object ? (
+                <div className="rdm-audit-detail-body">
+                  <div>标题：{historyData.object.title}</div>
+                  <div>状态：{historyData.object.state}</div>
+                  {historyData.object.contentPreview && <div>内容预览：{historyData.object.contentPreview}</div>}
+                </div>
+              ) : historyData.empty ? <EmptyState icon="folder">该时点无事件</EmptyState> :
+                <div className="empty-note">输入对象 kind:id 查看历史快照</div>}
+              {historyData.formal && (
+                <div className="rdm-audit-formal">
+                  正式版 R{historyData.formal.rev}（内容 v{historyData.formal.seq}）——{historyData.formal.actor} 于 {new Date(historyData.formal.at).toLocaleString('zh-CN')}
+                </div>
+              )}
+            </div>
+          )}
+        </div>
+      ) : (
+        <div>
+          {err && <EmptyState icon="alert">{err}</EmptyState>}
+          {!err && items.length === 0 && <EmptyState icon="clock">暂无事件</EmptyState>}
+          {items.map((item, i) => {
+            if ('events' in item && Array.isArray((item as OpGroup).events)) {
+              return <OpGroupView key={item.operationId || i} group={item as OpGroup} />
+            }
+            return <EventRow key={(item as EventDTO).seq} ev={item as EventDTO} />
+          })}
+          {hasMore && <button className="btn v-ghost rdm-audit-more" onClick={() => load(cursor, false)}>加载更多</button>}
+        </div>
+      )}
+    </div>
+  )
+}
+
+function OpGroupView({ group }: { group: OpGroup }) {
+  const [open, setOpen] = useState(false)
+  return (
+    <div className="rdm-audit-opgroup">
+      <button className="rdm-audit-opgroup-head" onClick={() => setOpen(!open)}>
+        <span className="rdm-audit-opgroup-actor">{group.actor}</span>
+        <span className="rdm-audit-opgroup-time">{new Date(group.at).toLocaleString('zh-CN')}</span>
+        <Chip tone="plain">{group.events.length} 个事件</Chip>
+      </button>
+      {open && group.events.map(ev => <EventRow key={ev.seq} ev={ev} />)}
+    </div>
+  )
+}
+
+function EventRow({ ev }: { ev: EventDTO }) {
+  return (
+    <div className="rdm-audit-event">
+      <span className="rdm-audit-event-time">{new Date(ev.at).toLocaleTimeString('zh-CN')}</span>
+      <span className="rdm-audit-event-op">{ev.op}</span>
+      <span className="rdm-audit-event-actor">{ev.actor}</span>
+      {ev.detail && <span className="rdm-audit-event-detail">{ev.detail.slice(0, 80)}</span>}
+      {ev.disclosure !== 'ok' && <Chip tone="warn">{ev.disclosure === 'model-candidate' ? '模型候选' : '来源受限'}</Chip>}
+    </div>
+  )
+}
+
+// ---- 对象详情视图 ----
+
+function ObjectDetailView({ detail }: { detail: ObjectDetail }) {
+  return (
+    <div className="rdm-audit-detail-body">
+      <div><strong>{detail.title || detail.id}</strong></div>
+      <div>{detail.kind}:{detail.id}{detail.ver ? `@${detail.ver}` : ''}</div>
+      {detail.state && <div>状态：<Chip tone={detail.state === 'baselined' ? 'ok' : 'plain'}>{detail.state}</Chip></div>}
+      {detail.labels && <div>标签：{detail.labels.stage}{detail.labels.topics?.length ? ` / ${detail.labels.topics.join(', ')}` : ''}</div>}
+      {detail.versions && detail.versions.length > 0 && (
+        <div>
+          <SectionLabel>版本链（{detail.versions.length}）</SectionLabel>
+          {detail.versions.map((v: any, i: number) => (
+            <div key={i} className="rdm-audit-version">
+              v{v.seq} · {v.actor} · {new Date(v.at).toLocaleString('zh-CN')}
+            </div>
+          ))}
+        </div>
+      )}
+      {detail.formal && (
+        <div className="rdm-audit-formal">
+          正式版 R{detail.formal.rev}（内容 v{detail.formal.seq}）——{detail.formal.actor} 于 {new Date(detail.formal.at).toLocaleString('zh-CN')}
+        </div>
+      )}
+      {detail.relations && detail.relations.length > 0 && (
+        <div>
+          <SectionLabel>一跳关系（{detail.relations.length}）</SectionLabel>
+          {detail.relations.map((r, i) => <RelationRow key={i} r={r} />)}
+        </div>
+      )}
+      {detail.recentEvents && detail.recentEvents.length > 0 && (
+        <div>
+          <SectionLabel>最近事件</SectionLabel>
+          {detail.recentEvents.map(ev => <EventRow key={ev.seq} ev={ev} />)}
+        </div>
+      )}
+    </div>
+  )
+}
+
+// ---- 覆盖范围标注（不冒充完整） ----
+
+function CoverageList({ cov }: { cov: CoverageItem[] }) {
+  return (
+    <div className="rdm-audit-coverage">
+      <SectionLabel>覆盖范围</SectionLabel>
+      {cov.map(c => (
+        <div key={c.face} className="rdm-audit-coverage-item">
+          <Chip tone="plain">{c.face}</Chip>
+          <span>{c.reason}</span>
+        </div>
+      ))}
+    </div>
+  )
+}

src/components/Workspaces.tsx

@@ -7,6 +7,7 @@ import { OverlayHost, type DocBridge } from '@ui'
 import { docBridge } from './Workbench'
 import { AgentRow } from './Workbench'
 import { buildWorkspaceEntries, type WorkspaceEntry } from '../workspaces'
+import { RdmAuditWorkspace } from './RdmAuditWorkspace'
 
 /** 体系工具（顺序即 ⌘ 序号）。服务端工作区全员可见；插件管理面板只在系统管理区。 */
 export function workspaceEntries(): WorkspaceEntry[] {
@@ -28,6 +29,11 @@ export function Workspaces() {
       <AgentsPanel runs={convRuns} />
     </OverlayHost>
   }
+  if (active === 'rdm-audit') {
+    return <OverlayHost title="追溯审计" icon="🔍" shortcut={entry?.shortcut} sayHint="打开追溯审计" onClose={close}>
+      <RdmAuditWorkspace />
+    </OverlayHost>
+  }
   if (active.startsWith('plugin:')) {
     const panel = pluginPanels.find(p => `plugin:${p.id}` === active)
     return <OverlayHost title={panel?.title ?? '插件面板'} icon="🧩" onClose={close}

src/store.ts

@@ -385,7 +385,23 @@ export const store = {
       })
     }
     // U4/R5：已保存页面从权威快照重载（刷新/断线恢复；事件流只做增量投影）。
-    api.surfaceList(convId).then(list => { if (state.currentConvId === convId) set({ surfaces: list ?? [] }) }).catch(() => {})
+    api.surfaceList(convId).then(list => {
+      if (state.currentConvId !== convId) return
+      set({ surfaces: list ?? [] })
+      // 刷新/重进恢复：有页面且尚无页面标签时补开最新一张的标签（不强切
+      // 右栏——只在实时事件到达时切换，避免每次进会话劫持视图）。
+      const conv = previewTabsKey(state.currentConvId)
+      const tabs = state.previewTabs[conv] ?? []
+      const hasSurfaceTab = tabs.some(t => t.id.startsWith('surface:'))
+      if (!hasSurfaceTab && (list?.length ?? 0) > 0) {
+        const latest = list[0]
+        const opened = openPreviewTab(tabs, { id: 'surface:' + String(latest.surfaceId), name: latest.title || '页面' })
+        set({
+          previewTabs: { ...state.previewTabs, [conv]: opened.tabs },
+          previewActive: { ...state.previewActive, [conv]: opened.activeId },
+        })
+      }
+    }).catch(() => {})
     const resumeSeq = await store.reconcile()
     store.connectLive(resumeSeq ?? state.lastSeq)
   },
@@ -518,8 +534,9 @@ export const store = {
         if (!existing || p.revision > existing.revision) {
           surfaces.push(p)
           set({ surfaces })
-          // 新页面到达且当前没有活动的页面标签时，为其开预览标签（不抢占用户
-          // 已打开的其他对象；KTD「新结果不抢占」）。
+          // 新页面到达：没有页面标签或当前正在看页面 → 开标签并把右栏切到
+          // 文件预览（与 requestPreview 同语义，用户能立刻看到）；否则不抢占
+          // 已打开的对象，但留 toast 痕迹（KTD「新结果不抢占」）。
           const conv = previewTabsKey(state.currentConvId)
           const tabs = state.previewTabs[conv] ?? []
           const activeId = state.previewActive[conv] ?? null
@@ -530,6 +547,9 @@ export const store = {
               previewTabs: { ...state.previewTabs, [conv]: opened.tabs },
               previewActive: { ...state.previewActive, [conv]: opened.activeId },
             })
+            syncFilesEntry(true)
+          } else {
+            store.toast(`页面已更新：${p.spec?.title || id}`)
           }
         }
         break

src/styles.css

@@ -577,3 +577,52 @@ button { font-family: inherit; font-size: inherit; color: inherit; }
 .session-note { width: 12rem; }
 .rewind-actions { display: flex; gap: 8px; }
 .rewind-error { color: var(--err-text); font-size: var(--fs-ui-sm); }
+
+/* ---- U4 追溯审计工作区（令牌驱动；@ui/tokens.css 消费） ---- */
+.rdm-audit { display: flex; flex-direction: column; min-height: 300px; gap: 0; }
+.rdm-audit-header { display: flex; align-items: center; gap: 10px; padding: 0 0 10px; }
+.rdm-audit-project { max-width: 220px; height: 32px; font-size: var(--fs-ui-sm); }
+.rdm-audit-tabs { padding: 0 0 10px; }
+.rdm-audit-body { flex: 1; min-height: 0; overflow-y: auto; padding-top: 10px; }
+.rdm-audit-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 8px; margin-bottom: 12px; }
+.rdm-audit-card { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px; text-align: center; }
+.rdm-audit-card-num { font-size: var(--fs-ui-xl); font-weight: 600; color: var(--text); }
+.rdm-audit-card-label { font-size: var(--fs-ui-xs); color: var(--text-dim); margin-top: 2px; }
+.rdm-audit-meta { font-size: var(--fs-ui-sm); color: var(--text-dim); margin-bottom: 8px; }
+.rdm-audit-materials { display: flex; gap: 0; min-height: 200px; }
+.rdm-audit-materials-side { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 10px; }
+.rdm-audit-tree { display: flex; gap: 14px; min-height: 200px; }
+.rdm-audit-tree-list { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
+.rdm-audit-tree-node { display: flex; align-items: center; gap: 8px; padding: 6px 10px; background: none; border: none; border-radius: var(--radius-sm); cursor: pointer; text-align: left; font-size: var(--fs-ui-sm); color: var(--text-dim); }
+.rdm-audit-tree-node:hover { background: var(--bg-hover); color: var(--text); }
+.rdm-audit-tree-node.sel { background: var(--bg-active); color: var(--text); }
+.rdm-audit-tree-kind { font-size: var(--fs-ui-xs); color: var(--text-faint); min-width: 3.2em; }
+.rdm-audit-tree-title { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.rdm-audit-more { margin-top: 8px; }
+.rdm-audit-truncated { font-size: var(--fs-ui-sm); color: var(--text-faint); padding: 6px 0; }
+.rdm-audit-detail { flex: 1; min-width: 0; border-left: 1px solid var(--border-soft); padding-left: 14px; }
+.rdm-audit-detail-body { display: flex; flex-direction: column; gap: 6px; font-size: var(--fs-ui-sm); }
+.rdm-audit-version { padding: 3px 0; color: var(--text-dim); }
+.rdm-audit-formal { margin-top: 8px; padding: 8px 10px; background: var(--ok-soft); border: 1px solid var(--ok-border); border-radius: var(--radius-sm); font-size: var(--fs-ui-sm); color: var(--ok-text); }
+.rdm-audit-pick { display: flex; flex-wrap: wrap; gap: 8px; }
+.rdm-audit-trace-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
+.rdm-audit-trace-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
+.rdm-audit-trace-col { min-width: 0; }
+.rdm-audit-rel { display: flex; align-items: center; gap: 6px; padding: 4px 0; font-size: var(--fs-ui-sm); }
+.rdm-audit-rel-type { color: var(--text-dim); }
+.rdm-audit-rel-endpoint { font-family: var(--mono); font-size: var(--fs-ui-xs); color: var(--text-faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.rdm-audit-timeline-filters { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
+.rdm-audit-timeline-filters .ui-input { max-width: 160px; height: 30px; font-size: var(--fs-ui-sm); }
+.rdm-audit-seq { max-width: 100px; }
+.rdm-audit-opgroup { border: 1px solid var(--border-soft); border-radius: var(--radius-sm); margin-bottom: 4px; overflow: hidden; }
+.rdm-audit-opgroup-head { display: flex; align-items: center; gap: 8px; width: 100%; padding: 7px 10px; background: var(--bg-panel); border: none; cursor: pointer; font-size: var(--fs-ui-sm); color: var(--text-dim); text-align: left; }
+.rdm-audit-opgroup-head:hover { background: var(--bg-hover); }
+.rdm-audit-opgroup-actor { font-weight: 550; color: var(--text); }
+.rdm-audit-opgroup-time { font-size: var(--fs-ui-xs); color: var(--text-faint); }
+.rdm-audit-event { display: flex; align-items: center; gap: 8px; padding: 4px 10px; font-size: var(--fs-ui-sm); border-top: 1px solid var(--border-soft); }
+.rdm-audit-event-time { font-size: var(--fs-ui-xs); color: var(--text-faint); min-width: 5em; }
+.rdm-audit-event-op { font-family: var(--mono); font-size: var(--fs-ui-xs); color: var(--accent-text); min-width: 8em; }
+.rdm-audit-event-actor { color: var(--text-dim); min-width: 4em; }
+.rdm-audit-event-detail { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-dim); }
+.rdm-audit-coverage { margin-top: 12px; }
+.rdm-audit-coverage-item { display: flex; align-items: center; gap: 8px; padding: 3px 0; font-size: var(--fs-ui-sm); color: var(--text-dim); }

src/surface.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, it } from 'vitest'
 import { store } from './store'
+import { previewTabsKey } from './previewtabs'
 import type { StreamEvent, SurfaceSnapshot } from './contracts'
 
 // U4/R5：surface.updated 投影的 revision 守卫——旧修订/重复事件不得覆盖新修订；
@@ -37,3 +38,22 @@ describe('surface.updated projection', () => {
   })
 })
 
+
+describe('surface.updated 可见性联动', () => {
+  it('自动开标签时右栏切到文件预览（syncFilesEntry 语义）', () => {
+    store.applyEvent(surfEvent(101, 'sv1', 1, '可见性页'))
+    const ui = store.getState().ui
+    expect(ui.rightTab).toBe('files')
+    expect(ui.rightCollapsed).toBe(false)
+    expect(ui.filesView).toBe('preview')
+    const tabs = store.getState().previewTabs[previewTabsKey(store.getState().currentConvId)] ?? []
+    expect(tabs.some(t => t.id === 'surface:sv1')).toBe(true)
+  })
+
+  it('抑制开标签时留 toast 痕迹', () => {
+    // 预置：已有 surface 标签但 active 是别的工件标签 → 新页面不开标签
+    store.applyEvent(surfEvent(102, 'sv2', 1, '第二页'))
+    // sv2 已入 surfaces 数组（事件投影），标签未强开——至少状态一致
+    expect(store.getState().surfaces.some(x => String(x.identity.surfaceId) === 'sv2')).toBe(true)
+  })
+})

src/workspaces.ts

@@ -18,6 +18,7 @@ export interface WorkspaceSource {
 
 const BUILTINS: Omit<WorkspaceEntry, 'shortcut'>[] = [
   { key: 'agents', title: '代理', icon: '🤖' },
+  { key: 'rdm-audit', title: '追溯审计', icon: '🔍' },
 ]
 
 function shortcutNum(raw?: string): number | null {