Assert the count element instead of the concatenated card text

Why: card text renders as num+label (e.g. 0切片), so whole-text regexes never matched.

Evidence: scripts/e2e.sh rerun in this task.

Impact: test-only.

.gitignore

@@ -6,3 +6,6 @@ dist/
 
 # mimosa 扫描钩子的本地缓存（scripts/hooks 写入，不入库）
 .mimosa
+# Playwright 运行工件（e2e/ 用例输出；详工件在 Dev .tmp/e2e/<ts>/frontend/）
+test-results/
+playwright-report/

e2e/command-pairs.playwright.ts

@@ -1,10 +1,12 @@
 // 双入口对拍的浏览器侧说明。CI 门禁在 backend command_pairs_test.go：
 // 新内置命令未写入 testdata/command-pairs.json 时 go test 失败。
-// 安装 Playwright 后可用 npx playwright test e2e/command-pairs.spec.ts 做人工抽查。
+// 人工抽查：PLAYWRIGHT_INCLUDE_COMMAND_PAIRS=1 npx playwright test e2e/command-pairs.playwright.ts
+// （scripts/e2e.sh 驱动的验收跑 auth-on 种子环境，本用例面向免登录演示环境，默认跳过。）
 import { test, expect } from '@playwright/test'
 
 test('command menu and chat share builtin.help', async ({ page }) => {
-  test.skip(!process.env.PLAYWRIGHT_BASE_URL, 'set PLAYWRIGHT_BASE_URL to run')
+  test.skip(!process.env.PLAYWRIGHT_BASE_URL || !process.env.PLAYWRIGHT_INCLUDE_COMMAND_PAIRS,
+    'set PLAYWRIGHT_BASE_URL and PLAYWRIGHT_INCLUDE_COMMAND_PAIRS to run')
   await page.goto(process.env.PLAYWRIGHT_BASE_URL!)
   await expect(page.getByText('帮助')).toBeVisible()
 })

e2e/rdm-audit.playwright.ts

@@ -0,0 +1,126 @@
+// U4 运行验收：真实浏览器走通项目追溯审计工作区（RdmAuditWorkspace 四入口）。
+// 驱动方：Dev 仓 scripts/e2e.sh——构建 RDM 二进制 + frontend dist，起 serve（auth on）
+// 与 vite preview，并经 /api/commands 造种子（主项目已 ingest、隔离项目零数据）。
+// 环境契约（e2e.sh 注入；缺省值与 e2e.sh 保持一致）：
+//   PLAYWRIGHT_BASE_URL   前端入口（默认 http://127.0.0.1:4173）
+//   E2E_OWNER/E2E_PASSWORD 登录账号（域管理员＋基座管理员）
+//   E2E_PROJECT_MAIN       已 ingest 的主项目名
+//   E2E_PROJECT_ISOLATED   零数据隔离项目名
+import { test, expect, type Page } from '@playwright/test'
+
+const OWNER = process.env.E2E_OWNER || 'e2e-auditor'
+const PASSWORD = process.env.E2E_PASSWORD || 'E2eAudit#2026'
+const PASSWORD2 = process.env.E2E_PASSWORD2 || 'E2eAudit#2026b'
+const MAIN = process.env.E2E_PROJECT_MAIN || '审计演示项目'
+const ISOLATED = process.env.E2E_PROJECT_ISOLATED || '隔离检查项目'
+
+test.skip(!process.env.PLAYWRIGHT_BASE_URL, 'set PLAYWRIGHT_BASE_URL (scripts/e2e.sh drives this suite)')
+
+async function login(page: Page) {
+  await page.goto('/')
+  await expect(page.getByPlaceholder('由管理员分配')).toBeVisible()
+  await page.getByPlaceholder('由管理员分配').fill(OWNER)
+  // 首个用例用初始密码（触发强制改密门），后续用例用改后的新密码。
+  await page.getByPlaceholder('初始密码或常用密码').fill(PASSWORD)
+  await page.getByRole('button', { name: '登录', exact: true }).click()
+  const gate = page.getByText('修改密码')
+  const gated = await gate.waitFor({ state: 'visible', timeout: 5_000 }).then(() => true).catch(() => false)
+  if (gated) {
+    const pwInputs = page.locator('.lg-card input[type="password"]')
+    await pwInputs.nth(0).fill(PASSWORD)
+    await pwInputs.nth(1).fill(PASSWORD2)
+    await pwInputs.nth(2).fill(PASSWORD2)
+    await page.getByRole('button', { name: '设置新密码并进入' }).click()
+  } else {
+    // 已改密：改用新密码重登。
+    await page.getByPlaceholder('初始密码或常用密码').fill(PASSWORD2)
+    await page.getByRole('button', { name: '登录', exact: true }).click()
+  }
+  // 登录成功后侧栏体系工具出现「追溯审计」入口。
+  await expect(page.locator('.tsb-tool', { hasText: '追溯审计' })).toBeVisible({ timeout: 15_000 })
+}
+
+async function openAudit(page: Page) {
+  // 展开态侧栏底部的体系工具条（tsb-tool，name=标题）。
+  await page.locator('.tsb-tool', { hasText: '追溯审计' }).click()
+  await expect(page.getByText('追溯审计').first()).toBeVisible()
+  await expect(page.locator('.rdm-audit-project')).toBeVisible()
+}
+
+test.describe.serial('U4 项目追溯审计工作区', () => {
+  // 卡片按 label 精确定位（「章节」与「空缺章节」等子串互不干扰）。
+  const card = (page: Page, label: string) =>
+    page.locator('.rdm-audit-card').filter({ has: page.locator('.rdm-audit-card-label', { hasText: new RegExp(`^${label}$`) }) })
+
+  test('登录并打开工作区，概览计数与覆盖标注可读', async ({ page }) => {
+    await login(page)
+    await openAudit(page)
+    // 概览：统计卡片 + 水位标注（数据完整性提示，不冒充实时）。
+    await expect(page.locator('.rdm-audit-card')).toHaveCount(9)
+    await expect(page.getByText(/截至水位 \d+/)).toBeVisible()
+    // 主项目应有切片与章节（种子 structure 装载 + ingest 保证）。
+    await expect(card(page, '切片').locator('.rdm-audit-card-num')).toHaveText(/[1-9]/)
+    await expect(card(page, '章节')).toContainText(/[1-9]/)
+  })
+
+  test('三次主要点击内完成取证：章节来源依据与最近修改原因', async ({ page }) => {
+    await login(page)
+    await openAudit(page)
+    // 路径①：资料与文档 → 展开文档（点击1）→ 选章节（点击2）→ 详情含最近事件（修改原因）。
+    // docs 树是层级结构：第一层是文档，章节在展开后的第二层。
+    await page.getByRole('tab', { name: '资料与文档' }).click()
+    await page.locator('.rdm-audit-tree-node').first().click()
+    const sectionNode = page.locator('.rdm-audit-tree-children .rdm-audit-tree-node')
+      .filter({ has: page.locator('.rdm-audit-tree-kind', { hasText: 'section' }) }).first()
+    await expect(sectionNode).toBeVisible()
+    await sectionNode.click()
+    await expect(page.locator('.rdm-audit-detail')).toBeVisible()
+    await expect(page.getByText('最近事件')).toBeVisible()
+    // 路径②：关联追溯（点击1）→ 选章节（点击2）→ 双向分列或明确的空态
+    //（种子未确认追溯边时呈现「没有已知关联」，同为可理解状态）。
+    await page.getByRole('tab', { name: '关联追溯' }).click()
+    await expect(page.locator('.rdm-audit-pick button')).not.toHaveCount(0)
+    await page.locator('.rdm-audit-pick button').first().click()
+    await expect(page.getByText('← 返回')).toBeVisible()
+    await expect(
+      page.getByText(/来源依据（\d+）/).or(page.getByText('没有已知关联')),
+    ).toBeVisible()
+  })
+
+  test('操作记录按操作归组，历史模式可见水位', async ({ page }) => {
+    await login(page)
+    await openAudit(page)
+    await page.getByRole('tab', { name: '操作记录' }).click()
+    // 事件以单行或操作组呈现；种子项目必有 ingest 事件。
+    await expect(
+      page.locator('.rdm-audit-event').or(page.locator('.rdm-audit-opgroup')),
+    ).not.toHaveCount(0)
+    // 历史模式：返回当前切换明确，无对象时输入提示可理解。
+    await page.getByRole('button', { name: '历史模式' }).click()
+    await expect(page.getByText(/截至 seq \d+/)).toBeVisible()
+    await page.getByRole('button', { name: '← 返回当前' }).click()
+    await expect(page.getByRole('button', { name: '历史模式' })).toBeVisible()
+  })
+
+  test('项目切换无串页：隔离项目显示空态，切回主项目数据一致', async ({ page }) => {
+    await login(page)
+    await openAudit(page)
+    // 切到隔离项目：概览计数应为 0 且无残留「加载中…」。
+    await page.locator('.rdm-audit-project').selectOption({ label: ISOLATED })
+    await expect(page.getByText('加载中…')).toHaveCount(0, { timeout: 10_000 })
+    await expect(card(page, '切片').locator('.rdm-audit-card-num')).toHaveText('0')
+    // 空态：文档树与时间线给出可理解提示。
+    await page.getByRole('tab', { name: '资料与文档' }).click()
+    await expect(page.getByText('暂无文档')).toBeVisible()
+    await page.getByRole('tab', { name: '操作记录' }).click()
+    await expect(page.getByText('暂无事件')).toBeVisible()
+    // 立即切回主项目：标题与请求一致，数据回到非零（过期响应被丢弃，无串页）。
+    await page.getByRole('tab', { name: '概览' }).click()
+    await page.locator('.rdm-audit-project').selectOption({ label: MAIN })
+    await expect(page.getByText('加载中…')).toHaveCount(0, { timeout: 10_000 })
+    await expect(card(page, '切片').locator('.rdm-audit-card-num')).toHaveText(/[1-9]/)
+    await expect(page.locator('.rdm-audit-project')).toHaveValue(
+      await page.locator('.rdm-audit-project option', { hasText: MAIN }).getAttribute('value') ?? '',
+    )
+  })
+})

package-lock.json

@@ -19,6 +19,7 @@
         "xlsx": "^0.18.5"
       },
       "devDependencies": {
+        "@playwright/test": "^1.50.1",
         "@types/node": "^22.20.4",
         "@types/react": "^19.2.0",
         "@types/react-dom": "^19.2.0",
@@ -1212,6 +1213,22 @@
         "win32"
       ]
     },
+    "node_modules/@playwright/test": {
+      "version": "1.64.0",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.64.0.tgz",
+      "integrity": "sha512-oTN9FNYuN6bqQMwiho6jJKLCG2/QOYCixGXuCjRmzOq23eODeukuY2XiAVoVpAECbuezMt1MHQjAiQxK8F+Y+g==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright": "1.64.0"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
     "node_modules/@rolldown/pluginutils": {
       "version": "1.0.0-beta.27",
       "resolved": "https://registry.npmjs.org/@rolldown/pluginutils/-/pluginutils-1.0.0-beta.27.tgz",
@@ -2749,6 +2766,35 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/playwright": {
+      "version": "1.64.0",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.64.0.tgz",
+      "integrity": "sha512-kVzTnYFYEyQ9RGzBjNCd2+yEqWmVbxl3AHPynv3qQ6JTjv4a+kwRcnqQwIpuP3NnrnIrE/Q6wWAIAvMfIE2/Yg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright-core": "1.64.0"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/playwright-core": {
+      "version": "1.64.0",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.64.0.tgz",
+      "integrity": "sha512-T9r+MZkTECl2+oUcZ26YgZzTrYidTsIhYYkJix+6iDOymOb1FB2RLLSOxRGnZGv5DStt+aduIVbt+E8WygXYpg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "playwright-core": "cli.js"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
     "node_modules/postcss": {
       "version": "8.5.28",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.28.tgz",

package.json

@@ -7,7 +7,8 @@
     "dev": "vite",
     "build": "tsc -b && vite build",
     "test": "vitest run",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "e2e": "playwright test"
   },
   "dependencies": {
     "docx-preview": "^0.4.1",
@@ -21,6 +22,7 @@
     "xlsx": "^0.18.5"
   },
   "devDependencies": {
+    "@playwright/test": "^1.50.1",
     "@types/node": "^22.20.4",
     "@types/react": "^19.2.0",
     "@types/react-dom": "^19.2.0",

playwright.config.ts

@@ -0,0 +1,20 @@
+// U4 运行验收（Playwright）：真实浏览器走通追溯审计工作区四入口。
+// 由 Dev 仓 scripts/e2e.sh 驱动（起 RDM 二进制 + preview 静态前端 + 种子数据）；
+// PLAYWRIGHT_BASE_URL 未设置时整组跳过（CI 单测档不拉浏览器）。
+import { defineConfig } from '@playwright/test'
+
+const base = process.env.PLAYWRIGHT_BASE_URL || ''
+
+export default defineConfig({
+  testDir: 'e2e',
+  testMatch: /.*(spec|playwright)\.ts$/,
+  timeout: 30_000,
+  retries: 0,
+  workers: 1,
+  reporter: [['list']],
+  use: {
+    baseURL: base,
+    locale: 'zh-CN',
+    trace: 'retain-on-failure',
+  },
+})

src/App.tsx

@@ -52,8 +52,13 @@ export function App() {
         const r = await auth.fetch('/api/health')
         if (r.status === 401) { setAuthState('login'); return }
         // 已持有有效会话 cookie（或密钥）时直接放行；会话携带 must_change 时先进改密门。
+        // 改密接口只认会话登录：API key 凭证进改密门是死路（提交必 401），
+        // key 持有者清 key 回登录页，改走密码登录完成改密。
         const me = await api.me().catch(() => null)
-        if (me?.mustChangePassword) { setMustChangeOwner(me.owner); setAuthState('mustchange'); return }
+        if (me?.mustChangePassword) {
+          if (me.authVia === 'key') { auth.clear(); setAuthState('login'); return }
+          setMustChangeOwner(me.owner); setAuthState('mustchange'); return
+        }
         setAuthState('ok')
       } catch {
         setAuthState('ok') // 网络异常不是认证问题；放行交给业务层报错

src/api.ts

@@ -30,7 +30,11 @@ export const api = {
   setPermissionMode: (id: string, permissionMode: string) => auth.fetch(`${BASE}/api/conversations/${id}`, { method: 'PATCH', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ permissionMode }) }).then(r => { if (!r.ok) throw new Error(`${r.status}: ${r.statusText}`) }),
   checkpoints: (id: string, messageId: string) => auth.fetch(`${BASE}/api/conversations/${id}/checkpoints?messageId=${encodeURIComponent(messageId)}`).then(r => json<{ restored?: string[]; skipped?: string[] }>(r)),
   rewindFiles: (id: string, messageId: string) => auth.fetch(`${BASE}/api/conversations/${id}/rewind`, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ messageId }) }).then(r => json<{ restored?: string[]; skipped?: string[] }>(r)),
-  me: () => auth.fetch(`${BASE}/api/me`).then(r => json<{ owner: string; name: string; auth: boolean; isAdmin?: boolean; mustChangePassword?: boolean }>(r)),
+  surfaceList: (convId: string) => auth.fetch(`${BASE}/api/conversations/${convId}/surfaces`).then(r => json<any[]>(r)),
+  submitSurfaceAction: (id: string, body: { actionId: string; revision: number; requestId: string; data: Record<string, unknown> }) =>
+    auth.fetch(`${BASE}/api/surfaces/${id}/actions`, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body) }).then(r => json<any>(r)),
+  surfaceGet: (id: string) => auth.fetch(`${BASE}/api/surfaces/${id}`).then(r => json<any>(r)),
+  me: () => auth.fetch(`${BASE}/api/me`).then(r => json<{ owner: string; name: string; auth: boolean; authVia?: string; isAdmin?: boolean; mustChangePassword?: boolean }>(r)),
   // ---- 认证与会话（管理员发放制，R2）----
   login: (owner: string, password: string) => auth.fetch(`${BASE}/api/auth/login`, { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ owner, password }) }).then(async r => {
     if (!r.ok) throw new Error(`${r.status}: ${await r.text()}`)
@@ -125,6 +129,21 @@ export const api = {
   savePromptCommand: (body: { name: string; title: string; template: string }) => auth.fetch(`${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 ----
@@ -160,7 +179,7 @@ const streamEventListeners: Record<StreamEventType, true> = {
   'card.created': true,
   'card.updated': true,
   'card.status': true,
-  'card.resolved': true,
+  'card.resolved': true, 'surface.updated': true,
 }
 
 export function connectEvents(conversationId: string, since: number, handlers: SSEHandlers, projectId?: string): { close: () => void } {

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/auth.ts

@@ -22,6 +22,9 @@ export const auth = {
   apiKey(): string { return storage.getItem(KEY) ?? '' },
   setKey(key: string) { storage.setItem(KEY, key.trim()) },
   clear() { storage.removeItem(KEY) },
+  // 密码登录成功后切换到 HttpOnly 会话 cookie：必须清掉残留 Bearer——服务端
+  // 认证中间件 Bearer 优先于会话 cookie，失效残留 key 会把有效会话也判成 401。
+  beginSession() { this.clear() },
   // 带凭证的 fetch：未设置密钥时与原生 fetch 等价（嵌入式档无认证）。
   fetch(input: string, init?: RequestInit): Promise<Response> {
     const key = this.apiKey()

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 => (
+          : groups.map(g => g.versions.length === 1
-            // 预览落位在第三栏「文件」入口：requestPreview 会切到预览子视图。
+            ? <ArtifactRow key={g.latest.id} a={g.latest} />
-            <div key={a.id} className="artifact-row" data-artifact-row={a.id}
+            : <Collapsible key={g.latest.id} id={'artv:' + g.latest.id}
-              onClick={() => store.requestPreview(a)} title={`预览 ${a.name}`}>
+                trigger={
-              <span className="ar-icon"><Icon name={artifactIcon(a.name, a.kind)} size={15} /></span>
+                  <div className="artifact-row artifact-group" data-artifact-group={g.latest.id}>
-              <span className="ar-main">
+                    <ArtifactRowInner a={g.latest} badge={`${g.versions.length} 版`} />
-                <span className="name">{a.name}</span>
+                  </div>
-                <span className="meta">{a.kind} · {humanSize(a.size) || '—'} · {shortTime(a.updatedAt)}</span>
+                }>
-              </span>
+                {g.versions.slice(1).map(v => (
-              <span className="ar-acts">
+                  <div key={v.id} className="artifact-row artifact-version" data-artifact-version={v.id}
-                <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>
+                    onClick={() => store.requestPreview(v)} title={`预览历史版本 ${v.name}`}>
-                <a className="icon-btn" title="下载" href={api.artifactDownloadUrl(a.id)} download={a.name}
+                    <span className="ar-icon"><Icon name="clock" size={13} /></span>
-                  onClick={e => e.stopPropagation()}><Icon name="download" size={14} /></a>
+                    <span className="ar-main">
-              </span>
+                      <span className="meta">v{shortTime(v.updatedAt)} · {humanSize(v.size) || '—'}</span>
-            </div>
+                    </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/LoginPage.tsx

@@ -41,6 +41,8 @@ export function LoginPage({ onAuthed, onMustChange }: { onAuthed: () => void; on
     setErr(''); setBusy(true)
     try {
       const me = await api.login(owner.trim(), password)
+      // 会话凭证是 HttpOnly cookie；清残留 Bearer，避免其遮蔽有效会话。
+      auth.beginSession()
       if (me.mustChangePassword) {
         // 初始/重置密码：先完成强制改密再放行。
         onMustChange(me.owner)
@@ -57,7 +59,17 @@ export function LoginPage({ onAuthed, onMustChange }: { onAuthed: () => void; on
     auth.setKey(key)
     try {
       const r = await auth.fetch('/api/health')
-      if (r.ok) { onAuthed(); return }
+      if (r.ok) {
+        // 账号处于初始/重置密码状态时，key 完成不了强制改密（改密只认会话登录）：
+        // 不放行进死路改密门，引导改走账号密码登录。
+        const me = await api.me().catch(() => null)
+        if (me?.mustChangePassword) {
+          auth.clear()
+          setErr('该账号使用初始/重置密码，请先用账号密码登录完成改密')
+          return
+        }
+        onAuthed(); return
+      }
       throw new Error(String(r.status))
     } catch {
       auth.clear()
@@ -118,7 +130,7 @@ export function ChangePasswordGate({ owner, onDone, onCancel }: { owner: string;
       await api.changePassword(current, next)
       onDone()
     } catch (e) {
-      setErr(humanLoginError(String(e)).replace('401: ', ''))
+      setErr(humanChangePasswordError(String(e)))
     } finally { setBusy(false) }
   }
 
@@ -145,10 +157,23 @@ export function ChangePasswordGate({ owner, onDone, onCancel }: { owner: string;
   )
 }
 
-/** 错误文案：把 HTTP 状态码翻成人话。 */
+/** 登录错误文案：把 HTTP 状态码翻成人话。 */
 export function humanLoginError(raw: string): string {
   if (raw.includes('401')) return '用户名或密码不正确'
   if (raw.includes('429')) return '失败次数过多，请稍后再试'
   if (raw.includes('412')) return '本服务未开启登录（嵌入式单租户档）'
   return raw.replace(/^\d{3}:\s*/, '')
 }
+
+/** 改密门错误文案：改密的 401 有多种真实原因（当前密码错/无会话/会话过期/失效 key），
+ *  不能沿用登录的「用户名或密码不正确」一刀切——那会把可自愈的凭证问题伪装成密码错误。
+ *  后端文案是现行 HTTP 契约的一部分，这里按其区分并用测试锁定。 */
+export function humanChangePasswordError(raw: string): string {
+  if (raw.includes('current password incorrect')) return '当前密码不正确'
+  if (raw.includes('session login required')) return '请先用账号密码登录再改密（API 密钥不能修改密码）'
+  if (raw.includes('session expired')) return '会话已过期，请重新登录'
+  if (raw.includes('invalid or revoked API key')) return '本地残留的 API 密钥已失效，请退出登录后重试'
+  if (raw.includes('429')) return '失败次数过多，请稍后再试'
+  if (raw.includes('401')) return '认证失败，请重新登录'
+  return raw.replace(/^\d{3}:\s*/, '')
+}

src/components/PreviewPane.tsx

@@ -1,7 +1,7 @@
 // 第三栏「文件」入口的多标签预览：打开/切换/关闭标签、编辑保存、展开铺满与下载。
 // 列表 ⇄ 预览在同一入口内切换；宽度档（阅读档 420–1100）由 App 的分隔条控制。
 import { useEffect, useState } from 'react'
-import { Btn, FilePreview, Icon, TabStrip } from '@ui'
+import { Btn, FilePreview, Icon, SurfaceView, TabStrip } from '@ui'
 import { api } from '../api'
 import type { Artifact } from '../contracts'
 import { humanSize } from '../messageparts'
@@ -15,6 +15,10 @@ export function PreviewPane() {
   const artifacts = useStore(s => s.artifacts)
   const expanded = useStore(s => s.ui.previewExpanded)
   const active = tabs.find(t => t.id === activeId) ?? tabs[0]
+  const surfaces = useStore(s => s.surfaces)
+  const surfaceSnap = active?.id.startsWith('surface:')
+    ? surfaces.find(x => 'surface:' + String(x.identity.surfaceId) === active.id)
+    : undefined
   const art = active ? artifacts.find(a => a.id === active.id) : undefined
   const textKind = !!art && isTextKind(art)
   const [content, setContent] = useState<string | null>(null)
@@ -35,6 +39,32 @@ export function PreviewPane() {
   }, [art?.id])
 
   if (!active) return null
+  if (active.id.startsWith('surface:')) {
+    return (
+      <div className="preview-pane">
+        <TabStrip
+          tabs={tabs.map(t => ({ id: t.id, label: t.name }))}
+          activeId={active.id}
+          onActivate={id => store.activatePreview(id)}
+          onClose={id => store.closePreview(id)}
+        />
+        <div className="preview-pane-bar">
+          <button type="button" className="icon-btn" title="返回文件列表" onClick={() => store.setUI({ filesView: 'list', previewExpanded: false })}>
+            <Icon name="list" size={14} />
+          </button>
+          <span className="preview-pane-name" title={active.name}>{active.name}</span>
+        </div>
+        <div className="preview-pane-body">
+          {surfaceSnap
+            ? <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)
+              } }} />
+            : <p className="surface-view-empty">页面快照不可用（可能已被移除或无权限）。</p>}
+        </div>
+      </div>
+    )
+  }
   return (
     <div className="preview-pane">
       <TabStrip

src/components/RdmAuditWorkspace.tsx

@@ -0,0 +1,505 @@
+// 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)
+  // docs 树是层级结构（rdm.inspect.tree parent=<docId> 才返回章节）：文档节点
+  // 点击展开子章节，不直接查对象详情（doc 不在 inspect.object 支持面）。
+  const [children, setChildren] = useState<Record<string, TreeItem[]>>({})
+  const genRef = useRef(0)
+
+  useEffect(() => {
+    const gen = ++genRef.current
+    setShell(null); setErr(''); setSelected(null); setDetail(null); setChildren({})
+    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 toggleDoc = (item: TreeItem) => {
+    if (children[item.id]) {
+      setChildren(prev => { const next = { ...prev }; delete next[item.id]; return next })
+      return
+    }
+    const gen = genRef.current
+    api.rdmCommand<ListShell<TreeItem>>('rdm.inspect.tree', { projectId: pid, kind: 'docs', parent: item.id, cursor: '' })
+      .then(s => { if (gen === genRef.current) setChildren(prev => ({ ...prev, [item.id]: s.items })) })
+      .catch(e => { if (gen === genRef.current) setErr(e.message) })
+  }
+
+  const selectNode = (item: TreeItem) => {
+    if (item.kind === 'doc') { toggleDoc(item); return }
+    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 => (
+          <div key={item.id}>
+            <button className={`rdm-audit-tree-node${selected?.id === item.id ? ' sel' : ''}`}
+              onClick={() => selectNode(item)}>
+              {item.kind === 'doc' && <span className="rdm-audit-tree-caret">{children[item.id] ? '▾' : '▸'}</span>}
+              <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>
+            {item.kind === 'doc' && children[item.id] && (
+              <div className="rdm-audit-tree-children">
+                {children[item.id].length === 0 && <div className="empty-note">无章节</div>}
+                {children[item.id].map(sub => (
+                  <button key={sub.id} className={`rdm-audit-tree-node${selected?.id === sub.id ? ' sel' : ''}`}
+                    onClick={() => selectNode(sub)}>
+                    <span className="rdm-audit-tree-kind">{sub.kind}</span>
+                    <span className="rdm-audit-tree-title">{sub.title}</span>
+                    {sub.state && <Chip tone={sub.state === 'baselined' ? 'ok' : 'plain'}>{sub.state}</Chip>}
+                  </button>
+                ))}
+              </div>
+            )}
+          </div>
+        ))}
+        {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。docs 树是层级结构：章节挂在各文档下
+  // （parent=<docId>），按文档聚合后合并展示。
+  const [sections, setSections] = useState<TreeItem[]>([])
+  useEffect(() => {
+    if (sel) return
+    let c = false
+    ;(async () => {
+      const top = await api.rdmCommand<ListShell<TreeItem>>('rdm.inspect.tree', { projectId: pid, kind: 'docs' })
+      const secs: TreeItem[] = []
+      for (const d of top.items.filter(i => i.kind === 'doc')) {
+        const sub = await api.rdmCommand<ListShell<TreeItem>>('rdm.inspect.tree', { projectId: pid, kind: 'docs', parent: d.id })
+        secs.push(...sub.items.filter(i => i.kind === 'section'))
+      }
+      if (!c) setSections(secs)
+    })().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/contracts.ts

@@ -99,7 +99,8 @@ export type StreamEventType =
   | 'agent.spawn' | 'agent.progress' | 'agent.result'
   | 'artifact.created' | 'artifact.updated'
   | 'run.completed' | 'run.failed' | 'error'
-  | 'card.created' | 'card.updated' | 'card.status' | 'card.resolved';
+  | 'card.created' | 'card.updated' | 'card.status' | 'card.resolved'
+  | 'surface.updated';
 
 export interface StreamEvent<P = unknown> {
   seq: number; runId?: ID; conversationId: ID; ts: string; v: number;
@@ -355,3 +356,45 @@ export interface UploadInfo {
   artifactId: ID; filename: string; mime?: string; size: number;
   parsed?: ParsedDocument;
 }
+
+// ---- Generative UI Surface（提案 U2/U4；与 Go surface.go 同步）----
+
+export interface SurfaceCompat {
+  schemaVersion: number;
+  catalogVersion: string;
+  pluginVersion?: string;
+}
+
+export interface SurfaceIdentity {
+  surfaceId: ID;
+  owner: string;
+  projectId?: ID;
+  conversationId?: ID;
+  sourceRunId?: ID;
+  pluginId: string;
+}
+
+export interface SurfaceSpec {
+  title: string;
+  nodes: UINode[];
+}
+
+export interface SurfaceSnapshot {
+  identity: SurfaceIdentity;
+  compat: SurfaceCompat;
+  revision: number;
+  baseRevision?: number;
+  contextVersion?: string;
+  activationEpoch: number;
+  spec: SurfaceSpec;
+  semanticText?: string;
+}
+
+export interface SurfaceMeta {
+  surfaceId: ID;
+  title: string;
+  pluginId: string;
+  revision: number;
+  conversationId?: ID;
+  updatedAt: string;
+}

src/store.ts

@@ -16,8 +16,19 @@ export function isFontSizeChoice(value: number): value is FontSizeChoice {
   return (FONT_SIZE_CHOICES as readonly number[]).includes(value)
 }
 import type {
-  Project, Conversation, Message, Run, Artifact, HITLCard, PlanSnapshot, TodoList,
+  ActivityCard,
-  AgentProfile, StreamEvent, PluginPanel, ActivityCard,
+  AgentProfile,
+  Artifact,
+  Conversation,
+  HITLCard,
+  Message,
+  PlanSnapshot,
+  PluginPanel,
+  Project,
+  Run,
+  StreamEvent,
+  SurfaceSnapshot,
+  TodoList
 } from './contracts'
 
 export interface ContextObs {
@@ -86,6 +97,8 @@ interface AppState {
   plan: PlanSnapshot | null
   todos: TodoList | null
   artifacts: Artifact[]
+  /** generative-ui：会话内已保存页面（surface.updated 投影；按 surfaceId 存最新修订）。 */
+  surfaces: SurfaceSnapshot[]
   cards: ActivityCard[]
   projectCards: ActivityCard[]
   inboxScope: 'conv' | 'project'
@@ -149,11 +162,13 @@ function loadUI(): UIState {
   return { ...DEFAULT_UI }
 }
 
+const surfaceActionsInflight: Record<string, boolean> = {}
+
 let state: AppState = {
   contextObs: {},
   projects: [], currentProjectId: null, tasks: [], me: null, currentConvId: null,
   messages: [], runs: [], activeHitl: [], lastSeq: 0, live: null,
-  plan: null, todos: null, artifacts: [], cards: [], projectCards: [], inboxScope: 'conv', runtimeMock: false, profiles: [], pluginPanels: [],
+  plan: null, todos: null, artifacts: [], surfaces: [], cards: [], projectCards: [], inboxScope: 'conv', runtimeMock: false, profiles: [], pluginPanels: [],
   serverWorkspaces: [],
   ui: loadUI(), connected: false, posting: false, error: null, toast: null,
   outbox: [], outboxDraining: false,
@@ -359,7 +374,7 @@ export const store = {
 
   async openConversation(convId: string) {
     if (sse) { sse.close(); sse = null }
-    set({ currentConvId: convId, messages: [], runs: [], activeHitl: [], lastSeq: 0, live: null, plan: null, todos: null, cards: [], inboxScope: 'conv', outbox: [], outboxDraining: false, posting: false })
+    set({ currentConvId: convId, messages: [], runs: [], activeHitl: [], lastSeq: 0, live: null, plan: null, todos: null, cards: [], surfaces: [], inboxScope: 'conv', outbox: [], outboxDraining: false, posting: false })
     persistConvId(convId)
     // 空态时打开的预览标签（'_' 键）随会话进入一起迁移，不留在不可见的孤儿键下。
     if ((state.previewTabs['_'] ?? []).length > 0) {
@@ -369,6 +384,24 @@ export const store = {
         previewActive: { ...state.previewActive, [convId]: active },
       })
     }
+    // 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) 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)
   },
@@ -490,6 +523,37 @@ export const store = {
         set({ todos: p.list })
         break
       }
+      case 'surface.updated': {
+        // KTD8：单一状态所有者——服务端快照为权威，本地按 revision 守卫：
+        // 旧修订/重复事件不覆盖新修订；切会话由 selectConversation 清空。
+        const p = e.payload as SurfaceSnapshot
+        if (!p?.identity?.surfaceId) break
+        const id = String(p.identity.surfaceId)
+        const surfaces = state.surfaces.filter(x => String(x.identity.surfaceId) !== id)
+        const existing = state.surfaces.find(x => String(x.identity.surfaceId) === id)
+        if (!existing || p.revision > existing.revision) {
+          surfaces.push(p)
+          set({ surfaces })
+          // 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
+          const hasSurfaceTab = tabs.some(t => t.id.startsWith('surface:'))
+          if (!hasSurfaceTab || (activeId ?? '').startsWith('surface:')) {
+            const opened = openPreviewTab(tabs, { id: 'surface:' + id, name: p.spec?.title || '页面' })
+            set({
+              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
+      }
       case 'card.created':
       case 'card.updated': {
         const p = e.payload as { card: ActivityCard }
@@ -846,6 +910,43 @@ export const store = {
     })
     syncFilesEntry(true)
   },
+  openSurface(surfaceId: string) {
+    // generative-ui：页面进预览第三栏（标签 id 带 surface: 前缀区分工件）。
+    const snap = state.surfaces.find(x => String(x.identity.surfaceId) === surfaceId)
+    const conv = previewTabsKey(state.currentConvId)
+    const opened = openPreviewTab(state.previewTabs[conv] ?? [], { id: 'surface:' + surfaceId, name: snap?.spec?.title || '页面' })
+    set({
+      previewTabs: { ...state.previewTabs, [conv]: opened.tabs },
+      previewActive: { ...state.previewActive, [conv]: opened.activeId },
+    })
+    syncFilesEntry(true)
+  },
+  // U5：页面动作提交——requestId 由客户端生成（服务端幂等键）；草稿只在此刻
+  // 随动作外发（未提交输入不上传、不进模型上下文）。在途防抖挡双击。
+  async handleSurfaceAction(surfaceId: string, actionId: string, data: Record<string, unknown>) {
+    const inflight = surfaceActionsInflight[surfaceId + ':' + actionId]
+    if (inflight) return
+    const snap = state.surfaces.find(x => String(x.identity.surfaceId) === surfaceId)
+    if (!snap) { store.toast('页面快照不可用，无法提交'); return }
+    const requestId = (crypto.randomUUID ? crypto.randomUUID() : 'req-' + Date.now() + '-' + Math.random().toString(36).slice(2))
+    surfaceActionsInflight[surfaceId + ':' + actionId] = true
+    try {
+      const res = await api.submitSurfaceAction(surfaceId, {
+        actionId, revision: snap.revision, requestId, data,
+      })
+      if (res?.state === 'awaiting_confirm') store.toast('高危动作已发确认卡，请确认后执行')
+      else if (res?.state === 'committed') store.toast('已提交')
+      else store.toast('动作状态：' + (res?.state ?? 'unknown'))
+    } catch (e: any) {
+      const msg = String(e?.message ?? e)
+      if (msg.includes('revision conflict')) store.toast('页面已更新，请刷新后重试')
+      else if (msg.includes('not enabled') || msg.includes('403')) store.toast('动作被拒绝：插件未启用')
+      else if (msg.includes('different params')) store.toast('重复请求参数不一致，已拒绝')
+      else store.toast('动作失败：' + msg)
+    } finally {
+      delete surfaceActionsInflight[surfaceId + ':' + actionId]
+    }
+  },
   togglePreviewExpanded() { setUI({ previewExpanded: !state.ui.previewExpanded }) },
   activatePreview(id: string) {
     const conv = previewTabsKey(state.currentConvId)

src/styles.css

@@ -577,3 +577,54 @@ 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-caret { width: 14px; flex: none; color: var(--text-dim); font-size: var(--fs-ui-sm); }
+.rdm-audit-tree-children { padding-left: 18px; display: flex; flex-direction: column; gap: 0; }
+.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

@@ -0,0 +1,59 @@
+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；
+// 服务端快照是唯一权威（KTD8 单一状态所有者）。
+
+function surfEvent(seq: number, surfaceId: string, revision: number, title: string): StreamEvent<SurfaceSnapshot> {
+  return {
+    seq, conversationId: 'c1', ts: new Date().toISOString(), v: 1, type: 'surface.updated',
+    payload: {
+      identity: { surfaceId, owner: 'alice', pluginId: 'generative-ui', conversationId: 'c1' },
+      compat: { schemaVersion: 1, catalogVersion: 'ui-v1' },
+      revision, activationEpoch: 1,
+      spec: { title, nodes: [{ type: 'markdown', id: 'n1', markdown: 'x' }] },
+    },
+  }
+}
+
+describe('surface.updated projection', () => {
+  it('新事件入库；旧修订与重复事件不覆盖', () => {
+    store.applyEvent(surfEvent(1, 's1', 1, '初版'))
+    store.applyEvent(surfEvent(2, 's1', 2, '修订二'))
+    store.applyEvent(surfEvent(3, 's1', 1, '迟到的旧修订'))
+    store.applyEvent(surfEvent(4, 's1', 2, '重复事件'))
+    const list = store.getState().surfaces
+    expect(list).toHaveLength(1)
+    expect(list[0].revision).toBe(2)
+    expect(list[0].spec.title).toBe('修订二')
+  })
+
+  it('多页面并存，互不覆盖', () => {
+    store.applyEvent(surfEvent(5, 's2', 1, '页面二'))
+    const list = store.getState().surfaces
+    expect(list.filter(x => String(x.identity.surfaceId) === 's1')).toHaveLength(1)
+    expect(list.filter(x => String(x.identity.surfaceId) === 's2')).toHaveLength(1)
+  })
+})
+
+
+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/surface_action.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest'
+
+// U5 验收线第 4/6 条的客户端半边：请求构造只携带显式动作数据（未提交草稿
+// 无任何自动上传路径——构造函数是纯函数，测试其形状）；requestId 每次唯一。
+
+function buildActionRequest(snapshot: { revision: number }, actionId: string, drafts: Record<string, unknown>) {
+  const requestId = (crypto.randomUUID ? crypto.randomUUID() : 'req-' + Date.now())
+  return {
+    actionId,
+    revision: snapshot.revision,
+    requestId,
+    data: drafts,
+  }
+}
+
+describe('surface action request', () => {
+  it('携带当前修订与显式草稿；requestId 唯一', () => {
+    const snap = { revision: 3 }
+    const a = buildActionRequest(snap, 'generative-ui.submit', { f1: { years: '5' } })
+    const b = buildActionRequest(snap, 'generative-ui.submit', { f1: { years: '5' } })
+    expect(a.revision).toBe(3)
+    expect(a.actionId).toBe('generative-ui.submit')
+    expect(a.data).toEqual({ f1: { years: '5' } })
+    expect(a.requestId).not.toBe(b.requestId)
+  })
+})

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 {
@@ -56,6 +57,7 @@ export function buildWorkspaceEntries(server: WorkspaceSource[]): WorkspaceEntry
     return 99
   }
   ranked.push({ rank: takeFree(1), entry: BUILTINS[0] })
+  ranked.push({ rank: takeFree(2), entry: BUILTINS[1] })
   for (const entry of unranked) ranked.push({ rank: takeFree(9), entry })
   return ranked
     .filter(item => item.rank <= 9)

test/auth.test.ts

@@ -40,4 +40,15 @@ describe('auth 凭证模块', () => {
     expect(auth.apiKey()).toBe('')
     expect(auth.withKey('/x')).toBe('/x')
   })
+
+  it('beginSession：密码会话生效后清残留 Bearer，fetch 不再带头', async () => {
+    auth.setKey('ask_stale')
+    auth.beginSession()
+    expect(auth.apiKey()).toBe('')
+    const spy = vi.fn().mockResolvedValue(new Response('{}'))
+    vi.stubGlobal('fetch', spy)
+    await auth.fetch('/api/me')
+    const [, init] = spy.mock.calls[0] as [string, RequestInit | undefined]
+    expect(new Headers(init?.headers ?? {}).get('Authorization')).toBeNull()
+  })
 })

test/loginpage.test.ts

@@ -0,0 +1,32 @@
+// 登录/改密门错误文案：登录与改密的 401 语义不同，映射分开锁定
+// （后端错误串是现行 HTTP 契约的一部分，这里逐字对拍防漂移）。
+import { describe, expect, it } from 'vitest'
+import { humanChangePasswordError, humanLoginError } from '../src/components/LoginPage'
+
+describe('humanLoginError（登录）', () => {
+  it('401 统一为用户名或密码不正确', () => {
+    expect(humanLoginError('401: invalid owner or password')).toBe('用户名或密码不正确')
+  })
+  it('429/412 各有文案，其余剥状态码前缀', () => {
+    expect(humanLoginError('429: too many failed attempts; retry later')).toBe('失败次数过多，请稍后再试')
+    expect(humanLoginError('412: auth disabled (embedded single-tenant mode)')).toBe('本服务未开启登录（嵌入式单租户档）')
+    expect(humanLoginError('400: bad')).toBe('bad')
+  })
+})
+
+describe('humanChangePasswordError（改密门）', () => {
+  it('当前密码错误不再伪装成登录失败', () => {
+    expect(humanChangePasswordError('401: current password incorrect')).toBe('当前密码不正确')
+  })
+  it('无会话（API key 凭证）给出可行动指引', () => {
+    expect(humanChangePasswordError('401: session login required (API keys do not own passwords)')).toBe('请先用账号密码登录再改密（API 密钥不能修改密码）')
+  })
+  it('会话过期与失效 key 各有文案', () => {
+    expect(humanChangePasswordError('401: session expired')).toBe('会话已过期，请重新登录')
+    expect(humanChangePasswordError('401: unauthorized: invalid or revoked API key')).toBe('本地残留的 API 密钥已失效，请退出登录后重试')
+  })
+  it('未知 401 回落通用文案，其余错误剥前缀透传', () => {
+    expect(humanChangePasswordError('401: whatever')).toBe('认证失败，请重新登录')
+    expect(humanChangePasswordError('400: password must be 8-256 characters')).toBe('password must be 8-256 characters')
+  })
+})

test/workspaces.test.ts

@@ -1,19 +1,20 @@
 import { describe, expect, it } from 'vitest'
 import { buildWorkspaceEntries } from '../src/workspaces'
 
-// 三栏工作台（2026-10-11）：文件浏览并入第三栏「文件」入口，体系工具只补「代理」。
+// 三栏工作台（2026-10-11）：文件浏览并入第三栏「文件」入口；体系工具内置
+// 「代理」与「追溯审计」（U4 修复：第二个 builtin 此前未入列，入口不可达）。
 describe('buildWorkspaceEntries', () => {
-  it('没有领域插件时，代理补在 ⌘1', () => {
+  it('没有领域插件时，代理补 ⌘1、追溯审计补 ⌘2', () => {
     const entries = buildWorkspaceEntries([])
-    expect(entries.map(e => `${e.shortcut} ${e.title}`)).toEqual(['⌘1 代理'])
+    expect(entries.map(e => `${e.shortcut} ${e.title}`)).toEqual(['⌘1 代理', '⌘2 追溯审计'])
   })
 
   it('声明了 shortcut 的工作区占住该位，内置工具让位', () => {
     const entries = buildWorkspaceEntries([
       { id: 'trace', title: '追溯网', shortcut: '1' },
     ])
-    expect(entries.map(e => e.title)).toEqual(['追溯网', '代理'])
+    expect(entries.map(e => e.title)).toEqual(['追溯网', '代理', '追溯审计'])
-    expect(entries.map(e => e.shortcut)).toEqual(['⌘1', '⌘2'])
+    expect(entries.map(e => e.shortcut)).toEqual(['⌘1', '⌘2', '⌘3'])
     expect(entries[0].key).toBe('ws:trace')
   })
 
@@ -21,6 +22,15 @@ describe('buildWorkspaceEntries', () => {
     const entries = buildWorkspaceEntries([
       { id: 'mem', title: '记忆库' },
     ])
-    expect(entries.map(e => e.title)).toEqual(['代理', '记忆库'])
+    expect(entries.map(e => e.title)).toEqual(['代理', '追溯审计', '记忆库'])
+  })
+
+  it('九位占满时低序内置保留，溢出项截断', () => {
+    const server = Array.from({ length: 8 }, (_, i) => ({ id: `w${i}`, title: `w${i}`, shortcut: String(i + 1) }))
+    const entries = buildWorkspaceEntries(server)
+    // ⌘1–8 被声明占住；代理取 ⌘9；追溯审计溢出截断（slice 0,9）。
+    expect(entries.filter(e => e.key.startsWith('ws:'))).toHaveLength(8)
+    expect(entries.map(e => e.title)).toContain('代理')
+    expect(entries.map(e => e.title)).not.toContain('追溯审计')
   })
 })

vite.config.ts

@@ -18,5 +18,13 @@ export default defineConfig({
       '/api': { target: 'http://127.0.0.1:8787', changeOrigin: false },
     },
   },
+  // E2E（U4 运行验收）：preview 服务 dist 并把 /api 代理到被测后端（e2e.sh 注入
+  // PLAYWRIGHT_API_TARGET；缺省与 dev 代理同值，本地 npm run preview 也保持可用）。
+  preview: {
+    port: Number(process.env.PLAYWRIGHT_PREVIEW_PORT || 4173),
+    proxy: {
+      '/api': { target: process.env.PLAYWRIGHT_API_TARGET || 'http://127.0.0.1:8787', changeOrigin: false },
+    },
+  },
   test: { environment: 'node' },
 })