docs: 交付文档、维护指引与端到端回归

补齐 README、开发计划、维护交接与 E2E 用例，执行最终验收。

e2e/specs/team/team.spec.ts

@@ -0,0 +1,31 @@
+import { test, expect, storageStatePath, unique, LoginPage, Sidebar } from '@e2e'
+
+test.describe('team', () => {
+  test('an admin adds an agent who can sign in to the inbox @team', async ({ humanAgentsPage, anonymousPage }) => {
+    const id = unique('agent')
+    const member = { name: `Alex ${id}`, email: `${id}@e2e.example.com`, password: 'E2e-New-Agent-Passw0rd!', role: 'Agent' as const }
+
+    await humanAgentsPage.goto()
+    await humanAgentsPage.invite(member)
+    await expect(humanAgentsPage.member(member.email)).toBeVisible()
+
+    const login = new LoginPage(anonymousPage)
+    await login.goto()
+    await login.signIn(member.email, member.password)
+    await expect(anonymousPage).toHaveURL(/\/conversations/)
+  })
+})
+
+test.describe('as a human agent', () => {
+  test.use({ storageState: storageStatePath('human-agent') })
+
+  test('the Agent role does not see admin areas in the navigation @team', async ({ page }) => {
+    // Not /conversations: the inbox collapses the sidebar to icons.
+    await page.goto('/people')
+    const sidebar = new Sidebar(page)
+    await expect(sidebar.link('Inbox')).toBeVisible()
+    for (const adminArea of ['AI Agents', 'Human Agents', 'Knowledge', 'AI Configuration', 'Organization']) {
+      await expect(sidebar.link(adminArea)).toBeHidden()
+    }
+  })
+})