diff --git a/e2e/rdm-cockpit.playwright.ts b/e2e/rdm-cockpit.playwright.ts
index ea7adec..b807120 100644
--- a/e2e/rdm-cockpit.playwright.ts
+++ b/e2e/rdm-cockpit.playwright.ts
@@ -21,9 +21,15 @@ async function login(page: Page, user: string, password: string) {
   await page.getByRole('button', { name: '登录', exact: true }).click()
 }
 
+// 侧栏入口两种形态：常规侧栏按钮（.tsb-tool）；窄宽紧凑布局换图标栏
+// （.icon-only 内 title 以「文档驾驶舱」开头的按钮）——入口都可达。
+function cockpitEntry(page: Page) {
+  return page.locator('.tsb-tool', { hasText: '文档驾驶舱' })
+    .or(page.locator('.icon-only button[title^="文档驾驶舱"]')).first()
+}
+
 async function loginOwner(page: Page) {
     await login(page, OWNER, PASSWORD)
-    await expect(page.locator('.tsb-tool', { hasText: '文档驾驶舱' })).toBeVisible({ timeout: 15_000 })
     // 登录后身份纪元与能力探针仍可能各跳一次；应用在身份变更时会关闭已开
     // 工作区——等落定再点入口，避免 overlay 被身份刷新关掉（竞态实测）。
     await page.waitForLoadState('networkidle').catch(() => {})
@@ -31,7 +37,11 @@ async function loginOwner(page: Page) {
   }
 
 async function openCockpit(page: Page) {
-  await page.locator('.tsb-tool', { hasText: '文档驾驶舱' }).click()
+  // 窄宽是单窗格布局：登录后默认「对话」窗格，先切到「上下文」窗格。
+  if (!(await cockpitEntry(page).isVisible().catch(() => false))) {
+    await page.getByRole('button', { name: '打开上下文' }).click()
+  }
+  await cockpitEntry(page).click()
   await expect(page.locator('.cockpit-project')).toBeVisible({ timeout: 15_000 })
   // 默认选中首个项目（种子=审计演示项目）。
   await expect(page.locator('.cockpit-stats')).toBeVisible({ timeout: 15_000 })
@@ -111,16 +121,17 @@ test.describe.serial('I4 文档驾驶舱组合验收', () => {
   test('4 一致性：API 采纳新版本后，刷新入口与各投影同步', async ({ page }) => {
     await loginOwner(page)
     await openCockpit(page)
-    await page.locator('.cockpit-tree-caret').first().click()
-    await page.locator('.cockpit-tree-title', { hasText: '设计说明' }).first().click()
+    const branch4 = page.locator('.cockpit-tree-branch', { hasText: '验证主体报告' }).first()
+    await branch4.locator('.cockpit-tree-caret').click()
+    await branch4.locator('.cockpit-tree-title', { hasText: '设计说明' }).first().click()
     const snapBefore = await page.locator('.cockpit-snap').innerText()
-    // 通过应用自身 API 采纳一个新提案（同源会话；与浏览器渲染解耦）。
-    await page.request.post('/api/commands/rdm.draft.propose', {
-      data: { params: { projectId: (await page.locator('.cockpit-project option:checked').textContent()) || '', sectionId: '', content: '一致性探针内容——不应出现' }, meta: {} },
+    // 通过应用自身 API 落一个已提交变更（需求账本新增条目，唯一键防幂等跳过；
+    // 采纳走高危确认卡、服务端不允许客户端伪造 Confirmed，故用低危提交面驱动）。
+    await page.request.post('/api/commands/rdm.reqs.import', {
+      data: { params: { projectId: await page.locator('.cockpit-project').inputValue(),
+        items: [{ kind: 'UR', title: `UR-PROBE-${Date.now()} 一致性探针`, statement: '刷新一致性驱动条目', source: 'e2e-probe' }] } },
       failOnStatusCode: false,
     })
-    // 上面缺 sectionId 必然 400：真正的驱动是 e2e.sh 早已留好的第二个提案
-    // （种子阶段 propose 未采纳的「一致性探针」），这里经面板刷新读取。
     await page.getByRole('button', { name: '刷新' }).click()
     await expect(page.locator('.cockpit-snap')).not.toHaveText(snapBefore)
     // 版本块前进：出现新版本条目。
diff --git a/src/components/CockpitReader.tsx b/src/components/CockpitReader.tsx
index 6e94f55..0326236 100644
--- a/src/components/CockpitReader.tsx
+++ b/src/components/CockpitReader.tsx
@@ -36,7 +36,14 @@ function useNodeDetail(pid: string, sel?: CockpitNodeRef) {
     setDetail(null); setErr('')
     if (!sel) return
     api.rdmCommand<any>('rdm.cockpit.node', { projectId: pid, kind: sel.kind, id: sel.id })
-      .then(d => { if (g === gen.current) setDetail(d) })
+      .then(d => {
+        if (g !== gen.current) return
+        // 后端空列表可能投影为 null（Go nil slice）；统一归一，消费端按数组使用。
+        for (const k of ['sources', 'history', 'impacts', 'conflicts'] as const) {
+          if (d?.[k] && !Array.isArray(d[k].items)) d[k].items = []
+        }
+        setDetail(d)
+      })
       .catch(e => { if (g === gen.current) setErr(e.message) })
     return () => { gen.current++ }
   }, [pid, sel?.kind, sel?.id])
diff --git a/src/components/DocumentCockpit.tsx b/src/components/DocumentCockpit.tsx
index 8f33889..e7c08b0 100644
--- a/src/components/DocumentCockpit.tsx
+++ b/src/components/DocumentCockpit.tsx
@@ -16,9 +16,9 @@ import {
   type CockpitTreeNode, type CockpitTreePage,
   type Density, type PanelTabId, type ViewMode,
 } from '../documentCockpit'
-import { CockpitPanel, CockpitReader } from './CockpitReader'
+import { CockpitPanel, CockpitReader, VersionBlock } from './CockpitReader'
 
-interface ProjectView { id: string; name: string; canAudit?: boolean }
+interface ProjectView { projectId: string; name: string; canAudit?: boolean }
 
 function CockpitErrorState({ raw }: { raw: string }) {
   const c = classifyRdmError(raw)
@@ -66,10 +66,12 @@ export function DocumentCockpit() {
     setProjects(null); setPid(''); setOverview(null); setSelected(null); setFilter(''); setError('')
     api.rdmCommand<{ projects?: ProjectView[] } | ProjectView[]>('rdm.project.list')
       .then(list => {
-        if (!c) return
+        if (c) return
         // rdm.project.list 返回 { projects: [...] }；容忍裸数组形态。
         const rows = Array.isArray(list) ? list : (list?.projects ?? [])
         setProjects(rows)
+        // 设计 §6.2：进入驾驶舱默认选中第一个可见项目，驱动概览首屏。
+        if (rows.length > 0) setPid(prev => prev || rows[0].projectId)
       })
       .catch(e => { if (!c) setError(e.message) })
     return () => { c = true }
@@ -128,7 +130,7 @@ export function DocumentCockpit() {
     <div className="cockpit">
       <div className="cockpit-header">
         <select className="ui-input cockpit-project" value={pid} onChange={e => { setPid(e.target.value); setSelected(null); setFilter('') }} aria-label="选择项目">
-          {projects.map(p => <option key={p.id} value={p.id}>{p.name}</option>)}
+          {projects.map(p => <option key={p.projectId} value={p.projectId}>{p.name}</option>)}
         </select>
         {filter && <button type="button" className="cockpit-filter-chip" onClick={() => setFilter('')}>
           筛选：{STAT_FILTERS.find(s => s.filter === filter)?.label || filter} ✕
@@ -195,7 +197,9 @@ export function DocumentCockpit() {
           )}
           {overview && selected && viewMode === 'panorama' && (
             <PanoramaNode pid={pid} selection={selected} overview={overview}
+              snapRev={overview.meta.snapshotRevision}
               childPage={selected.ref.kind === 'document' ? treePages[selected.ref.id] : undefined}
+              density={density}
               onClear={() => setSelected(null)}
               onOpenReader={() => applyPrefs({ lastView: 'reader' })} />
           )}
@@ -287,9 +291,11 @@ function PanoramaHome({ overview, onSelect }: { overview: CockpitOverview; onSel
   )
 }
 
-function PanoramaNode({ pid, selection, overview, childPage, onClear, onOpenReader }: {
+function PanoramaNode({ pid, selection, overview, childPage, density, snapRev, onClear, onOpenReader }: {
   pid: string; selection: Selection; overview: CockpitOverview
   childPage?: { items: CockpitTreeNode[]; nextCursor?: string; hasMore: boolean; meta?: CockpitMeta }
+  density: Density
+  snapRev: string
   onClear: () => void
   onOpenReader: () => void
 }) {
@@ -300,10 +306,17 @@ function PanoramaNode({ pid, selection, overview, childPage, onClear, onOpenRead
     const g = ++gen.current
     setDetail(null); setErr('')
     api.rdmCommand<any>('rdm.cockpit.node', { projectId: pid, kind: selection.ref.kind, id: selection.ref.id })
-      .then(d => { if (g === gen.current) setDetail(d) })
+      .then(d => {
+        if (g !== gen.current) return
+        // 后端空列表可能投影为 null（Go nil slice）；统一归一，消费端按数组使用。
+        for (const k of ['sources', 'history', 'impacts', 'conflicts'] as const) {
+          if (d?.[k] && !Array.isArray(d[k].items)) d[k].items = []
+        }
+        setDetail(d)
+      })
       .catch(e => { if (g === gen.current) setErr(e.message) })
     return () => { gen.current++ }
-  }, [pid, selection.ref.kind, selection.ref.id])
+  }, [pid, selection.ref.kind, selection.ref.id, snapRev])
   const node = (detail?.node || null) as CockpitTreeNode | null
   const title = node?.title || selection.ref.id
   return (
@@ -318,6 +331,9 @@ function PanoramaNode({ pid, selection, overview, childPage, onClear, onOpenRead
       {detail?.body?.length === 1 && detail.body[0].kind === 'restricted' && (
         <div className="empty-note">内容受限（{detail.body[0].reason || '权限'}）——标题与状态可见，正文不展示</div>
       )}
+      {selection.ref.kind === 'section' && detail?.versions && detail.versions.length > 0 && (
+        <VersionBlock versions={detail.versions} density={density} />
+      )}
       {detail && detail.meta && !sameSnapshot(detail.meta, overview.meta) && (
         <div className="cockpit-truncated">节点详情与统计快照不同（{detail.meta.snapshotRevision} vs {overview.meta.snapshotRevision}）——刷新对齐</div>
       )}