diff --git a/apps/web_v1/scripts/structure-check.mjs b/apps/web_v1/scripts/structure-check.mjs
index dd5a009..2097376 100644
--- a/apps/web_v1/scripts/structure-check.mjs
+++ b/apps/web_v1/scripts/structure-check.mjs
@@ -24,6 +24,7 @@ const requiredFiles = [
   'src/api/mappers.tsx',
   'src/api/search.ts',
   'src/api/inbox.ts',
+  'src/api/ai.ts',
   'scripts/api-client.test.mjs',
 ]
 
@@ -51,7 +52,7 @@ if (!projectRailSource.includes('projectNameLabel(project.name)')) {
   failures.push('project rail labels must derive from the project name')
 }
 
-const apiFiles = ['client.ts', 'projects.ts', 'mappers.tsx', 'search.ts', 'inbox.ts'].map((name) => `src/api/${name}`)
+const apiFiles = ['client.ts', 'projects.ts', 'mappers.tsx', 'search.ts', 'inbox.ts', 'ai.ts'].map((name) => `src/api/${name}`)
 const apiSource = apiFiles.map((file) => readFileSync(file, 'utf8')).join('\n')
 for (const forbidden of [
   { pattern: /\bID\s*\?\s*:/, label: 'optional PascalCase ID compatibility field' },
@@ -101,6 +102,34 @@ if (!inboxSource.includes('body: { suggestionIds }')) failures.push('inbox confi
 const inboxPageSource = readFileSync('src/pages/projects/project-inbox.tsx', 'utf8')
 if (!inboxPageSource.includes('确认创建')) failures.push('project inbox must expose the single confirmation action')
 
+const aiApiSource = readFileSync('src/api/ai.ts', 'utf8')
+for (const required of ['/api/v1/projects/', '/ai-sessions', 'listAISessions', 'createAISession']) {
+  if (!aiApiSource.includes(required)) failures.push(`AI API must include ${required}`)
+}
+if (/\b(?:task|note|source)Id\b/.test(aiApiSource)) failures.push('AI session responses must not expose automatic formal object IDs')
+
+const aiPageSource = readFileSync('src/pages/projects/project-ai.tsx', 'utf8')
+for (const required of ['AI 助手', '创建会话', 'loading', 'error']) {
+  if (!aiPageSource.includes(required)) failures.push(`project AI page must include ${required}`)
+}
+for (const forbidden of ['DeepSeek V4.0 Flash', '给 DeepSeek 发送消息', 'IconAttachment', 'agent-send-button']) {
+  if (aiPageSource.includes(forbidden)) failures.push(`project AI page contains unsupported chat control ${forbidden}`)
+}
+
+const unsupportedControls = [
+  { file: 'src/pages/workspace-explore.tsx', required: '暂未开放', forbidden: ['同步数据源', '添加数据源', 'IconRefresh', 'IconEdit', 'IconDelete'] },
+  { file: 'src/pages/projects/project-new-channel.tsx', required: '暂未开放', forbidden: ['保存频道', '<Input', '<Select', '<TextArea'] },
+  { file: 'src/pages/projects/project-statusbar.tsx', forbidden: ['升级', '支付', 'billing-plan', '152GB', 'AI 空闲'] },
+  { file: 'src/pages/projects/project-topbar.tsx', forbidden: ['停靠左边', '停靠右边', 'DockIcon', 'isDesktopRuntime'] },
+]
+for (const check of unsupportedControls) {
+  const source = readFileSync(check.file, 'utf8')
+  if (check.required && !source.includes(check.required)) failures.push(`${check.file} must show ${check.required}`)
+  for (const forbidden of check.forbidden) {
+    if (source.includes(forbidden)) failures.push(`${check.file} contains unsupported control ${forbidden}`)
+  }
+}
+
 if (existsSync('src/App.tsx')) {
   failures.push('legacy src/App.tsx should be removed after page split')
 }
diff --git a/apps/web_v1/src/api/ai.ts b/apps/web_v1/src/api/ai.ts
new file mode 100644
index 0000000..b40d6ac
--- /dev/null
+++ b/apps/web_v1/src/api/ai.ts
@@ -0,0 +1,30 @@
+import { apiRequest, type ApiSession } from './client'
+
+export type AISessionDTO = {
+  id: string
+  projectId: string
+  title: string
+  context: string
+  status: string
+  createdAt: string
+  updatedAt: string
+}
+
+export type CreateAISessionInput = {
+  title: string
+  context: string
+}
+
+export async function listAISessions(session: ApiSession, projectId: string) {
+  return apiRequest<AISessionDTO[]>(`/api/v1/projects/${projectId}/ai-sessions`, {
+    token: session.token,
+  })
+}
+
+export async function createAISession(session: ApiSession, projectId: string, input: CreateAISessionInput) {
+  return apiRequest<AISessionDTO>(`/api/v1/projects/${projectId}/ai-sessions`, {
+    method: 'POST',
+    token: session.token,
+    body: input,
+  })
+}
diff --git a/apps/web_v1/src/app/App.tsx b/apps/web_v1/src/app/App.tsx
index df6399a..31bbe1a 100644
--- a/apps/web_v1/src/app/App.tsx
+++ b/apps/web_v1/src/app/App.tsx
@@ -1,8 +1,9 @@
-import { useRef, useState } from 'react'
+import { useCallback, useRef, useState } from 'react'
 import { ConfigProvider, Message, Spin } from '@arco-design/web-react'
 import '@arco-design/web-react/dist/css/arco.css'
 import '../App.css'
 import { ApiError, login, setApiBaseUrl, type ApiSession } from '../api/client'
+import { createAISession, listAISessions, type CreateAISessionInput } from '../api/ai'
 import { analyzeInboxItem, confirmInboxItem } from '../api/inbox'
 import { mapWorkspace } from '../api/mappers'
 import {
@@ -43,6 +44,16 @@ function App() {
   const [searchResultPreview, setSearchResultPreview] = useState<SearchResultDTO | null>(null)
   const workspaceSearch = useWorkbenchSearch(session)
 
+  const handleListAISessions = useCallback((projectId: string) => {
+    if (!session) return Promise.reject(new Error('未登录'))
+    return listAISessions(session, projectId)
+  }, [session])
+
+  const handleCreateAISession = useCallback((projectId: string, input: CreateAISessionInput) => {
+    if (!session) return Promise.reject(new Error('未登录'))
+    return createAISession(session, projectId, input)
+  }, [session])
+
   const dark = theme === 'dark'
   const activeWorkspace = workspaces.find((workspace) => workspace.project.id === activeProjectID) ?? workspaces[0]
   const activeTagOptions = activeWorkspace?.tags.filter((tag) => tag !== 'all' && tag !== '全部') ?? []
@@ -346,6 +357,8 @@ function App() {
             onSelectSearchResult={handleSelectSearchResult}
             onAnalyzeInbox={handleAnalyzeInbox}
             onConfirmInbox={handleConfirmInbox}
+            onListAISessions={handleListAISessions}
+            onCreateAISession={handleCreateAISession}
           />
         ) : (
           <Spin loading />
diff --git a/apps/web_v1/src/pages/projects/project-ai.tsx b/apps/web_v1/src/pages/projects/project-ai.tsx
index e3bd151..0b55a11 100644
--- a/apps/web_v1/src/pages/projects/project-ai.tsx
+++ b/apps/web_v1/src/pages/projects/project-ai.tsx
@@ -1,80 +1,134 @@
-import { Button, Card, Input, Space, Typography } from '@arco-design/web-react'
-import {
-  IconArrowUp,
-  IconAttachment,
-  IconPlusCircle,
-  IconRobot,
-} from '@arco-design/web-react/icon'
-import type { AISession, ProjectWorkspace } from './project-types'
+import { useEffect, useState } from 'react'
+import { Alert, Button, Card, Empty, Input, Space, Spin, Tag, Typography } from '@arco-design/web-react'
+import { IconPlusCircle, IconRobot } from '@arco-design/web-react/icon'
+import type { AISessionDTO, CreateAISessionInput } from '../../api/ai'
+import type { ProjectWorkspace } from './project-types'
 
 const { Title, Text } = Typography
 
-export function ProjectAi({ activeWorkspace, onSelectItem }: { activeWorkspace: ProjectWorkspace; onSelectItem: (title: string) => void }) {
-  const { aiSessions } = activeWorkspace
-  const groupedSessions = groupSessions(aiSessions)
+export function ProjectAi({
+  activeWorkspace,
+  onSelectItem,
+  onListSessions,
+  onCreateSession,
+}: {
+  activeWorkspace: ProjectWorkspace
+  onSelectItem: (title: string) => void
+  onListSessions: (projectId: string) => Promise<AISessionDTO[]>
+  onCreateSession: (projectId: string, input: CreateAISessionInput) => Promise<AISessionDTO>
+}) {
+  const [sessions, setSessions] = useState<AISessionDTO[]>([])
+  const [title, setTitle] = useState('')
+  const [context, setContext] = useState('')
+  const [loading, setLoading] = useState(true)
+  const [creating, setCreating] = useState(false)
+  const [error, setError] = useState('')
+  const projectId = activeWorkspace.project.id
+
+  useEffect(() => {
+    let current = true
+    setLoading(true)
+    setError('')
+    void onListSessions(projectId)
+      .then((items) => {
+        if (current) setSessions(items)
+      })
+      .catch((requestError: unknown) => {
+        if (current) setError(requestError instanceof Error ? requestError.message : 'AI 会话加载失败，请稍后重试')
+      })
+      .finally(() => {
+        if (current) setLoading(false)
+      })
+    return () => {
+      current = false
+    }
+  }, [onListSessions, projectId])
+
+  const createSession = async () => {
+    const trimmedTitle = title.trim()
+    if (!trimmedTitle) {
+      setError('请输入 AI 会话标题')
+      return
+    }
+    setCreating(true)
+    setError('')
+    try {
+      const created = await onCreateSession(projectId, {
+        title: trimmedTitle,
+        context: context.trim(),
+      })
+      setSessions((current) => [created, ...current.filter((session) => session.id !== created.id)])
+      setTitle('')
+      setContext('')
+      onSelectItem(created.title)
+    } catch (requestError) {
+      setError(requestError instanceof Error ? requestError.message : 'AI 会话创建失败，请稍后重试')
+    } finally {
+      setCreating(false)
+    }
+  }
 
   return (
     <div className="project-channel-page project-ai-page overview-page">
-      <div className="agent-chat-shell">
-        <Card className="agent-session-list queue-section" bordered>
-          <Button className="agent-new-chat" icon={<IconPlusCircle />}>
-            开启新对话
-          </Button>
+      <div className="overview-head">
+        <div>
+          <Title heading={4}>AI 助手</Title>
+          <Text type="secondary">创建项目内普通会话；不会自动生成任务、笔记或资料。</Text>
+        </div>
+      </div>
 
-          <div className="agent-session-groups">
-            {groupedSessions.length ? (
-              groupedSessions.map((group) => (
-                <section className="agent-session-group" key={group.label}>
-                  <Text type="secondary">{group.label}</Text>
-                  {group.items.map((session, index) => (
-                    <button
-                      className={index === 0 && group.label === groupedSessions[0]?.label ? 'agent-session active' : 'agent-session'}
-                      key={session.id}
-                      onClick={() => onSelectItem(session.title)}
-                    >
-                      {session.title}
-                    </button>
-                  ))}
-                </section>
-              ))
-            ) : (
-              <Text type="secondary">暂无对话</Text>
-            )}
-          </div>
+      {error ? <Alert className="agent-request-error" type="error" content={error} closable onClose={() => setError('')} /> : null}
+
+      <div className="agent-chat-shell">
+        <Card className="agent-session-list queue-section" bordered title="会话列表">
+          <Spin loading={loading} style={{ width: '100%' }}>
+            {sessions.length ? (
+              <div className="agent-session-groups">
+                {sessions.map((session) => (
+                  <button className="agent-session" key={session.id} onClick={() => onSelectItem(session.title)}>
+                    <span>{session.title}</span>
+                    <Tag size="small" color={session.status === 'ready' ? 'arcoblue' : 'gray'}>
+                      {sessionStatusLabel(session.status)}
+                    </Tag>
+                  </button>
+                ))}
+              </div>
+            ) : loading ? null : <Empty description="暂无 AI 会话" />}
+          </Spin>
         </Card>
 
         <Card className="agent-chat-panel queue-section" bordered>
-          <div className="agent-chat-main">
-            <Title heading={2}>选择专家，开始对话</Title>
-          </div>
-          <div className="agent-composer">
-            <Input.TextArea placeholder="给 DeepSeek 发送消息" autoSize={{ minRows: 3, maxRows: 6 }} />
-            <div className="agent-composer-footer">
-              <Button className="agent-model-chip" icon={<IconRobot />}>
-                DeepSeek V4.0 Flash
-              </Button>
-              <Space>
-                <Button type="text" icon={<IconAttachment />} />
-                <Button className="agent-send-button" type="primary" shape="circle" icon={<IconArrowUp />} />
-              </Space>
+          <Space direction="vertical" size={16} className="action-form">
+            <div>
+              <Title heading={5}>创建会话</Title>
+              <Text type="secondary">会话状态为“待开始”只表示入口已建立，不代表 AI 已完成处理。</Text>
             </div>
-          </div>
+            <label>
+              <Text>会话标题</Text>
+              <Input value={title} onChange={setTitle} placeholder="例如：报价分析" maxLength={120} />
+            </label>
+            <label>
+              <Text>项目上下文</Text>
+              <Input.TextArea
+                value={context}
+                onChange={setContext}
+                placeholder="描述本次会话要参考的项目背景"
+                autoSize={{ minRows: 5, maxRows: 10 }}
+              />
+            </label>
+            <Button type="primary" icon={<IconPlusCircle />} loading={creating} onClick={() => void createSession()}>
+              创建会话
+            </Button>
+            <Text type="secondary"><IconRobot /> AI 输出如需转为正式对象，必须另行确认。</Text>
+          </Space>
         </Card>
       </div>
     </div>
   )
 }
 
-function groupSessions(sessions: AISession[]) {
-  const labels = ['今天', '昨天', '7 天内']
-  return labels.map((label) => ({
-    label,
-    items: sessions.filter((session, index) => session.time.includes(label) || (!labels.some((item) => session.time.includes(item)) && labels.indexOf(label) === fallbackGroupIndex(index))),
-  })).filter((group) => group.items.length > 0)
-}
-
-function fallbackGroupIndex(index: number) {
-  if (index === 0) return 0
-  if (index === 1) return 1
-  return 2
+function sessionStatusLabel(status: string) {
+  if (status === 'ready') return '待开始'
+  if (status === 'failed') return '创建失败'
+  return status || '未知状态'
 }
diff --git a/apps/web_v1/src/pages/projects/project-channel-page.tsx b/apps/web_v1/src/pages/projects/project-channel-page.tsx
index 5e64aa2..6809187 100644
--- a/apps/web_v1/src/pages/projects/project-channel-page.tsx
+++ b/apps/web_v1/src/pages/projects/project-channel-page.tsx
@@ -8,6 +8,7 @@ import type { ProjectTaskUpdate } from './project-task-edit-modal'
 import { ProjectTasks } from './project-tasks'
 import type { ChannelKey, InboxConfirmationOutcome, ProjectWorkspace } from './project-types'
 import type { InboxSuggestionDTO } from '../../api/inbox'
+import type { AISessionDTO, CreateAISessionInput } from '../../api/ai'
 
 export function ProjectChannelPage({
   activeChannel,
@@ -23,6 +24,8 @@ export function ProjectChannelPage({
   onUpdateTask,
   onAnalyzeInbox,
   onConfirmInbox,
+  onListAISessions,
+  onCreateAISession,
 }: {
   activeChannel: ChannelKey
   activeWorkspace: ProjectWorkspace
@@ -37,6 +40,8 @@ export function ProjectChannelPage({
   onUpdateTask: (update: ProjectTaskUpdate) => void
   onAnalyzeInbox: (inboxId: string) => Promise<InboxSuggestionDTO[]>
   onConfirmInbox: (inboxId: string, suggestionIds: string[]) => Promise<InboxConfirmationOutcome>
+  onListAISessions: (projectId: string) => Promise<AISessionDTO[]>
+  onCreateAISession: (projectId: string, input: CreateAISessionInput) => Promise<AISessionDTO>
 }) {
   switch (activeChannel) {
     case 'inbox':
@@ -44,7 +49,7 @@ export function ProjectChannelPage({
     case 'tasks':
       return <ProjectTasks activeWorkspace={activeWorkspace} activeTaskID={activeTaskID} onOpenTask={onOpenTask} onCloseTask={onCloseTask} onSelectItem={onSelectItem} onCreateTask={onCreateTask} onCreateProjectTag={onCreateProjectTag} onUpdateTask={onUpdateTask} />
     case 'ai':
-      return <ProjectAi activeWorkspace={activeWorkspace} onSelectItem={onSelectItem} />
+      return <ProjectAi activeWorkspace={activeWorkspace} onSelectItem={onSelectItem} onListSessions={onListAISessions} onCreateSession={onCreateAISession} />
     case 'notes':
       return <ProjectNotes activeWorkspace={activeWorkspace} onSelectItem={onSelectItem} onUploadSource={onUploadSource} />
     case 'cron':
diff --git a/apps/web_v1/src/pages/projects/project-cron.tsx b/apps/web_v1/src/pages/projects/project-cron.tsx
index f65547b..e33853e 100644
--- a/apps/web_v1/src/pages/projects/project-cron.tsx
+++ b/apps/web_v1/src/pages/projects/project-cron.tsx
@@ -14,7 +14,7 @@ export function ProjectCron({ activeWorkspace, onSelectItem, onCreateCronPlan }:
       <div className="overview-head">
         <div>
           <Title heading={4}>计划任务</Title>
-          <Text type="secondary">{project.name} 的定时任务、自动检查和周期性 AI 工作。</Text>
+          <Text type="secondary">{project.name} 的计划任务元数据与提醒安排；当前不会自主执行 AI 工作。</Text>
         </div>
         <Button type="primary" icon={<IconPlus />} onClick={onCreateCronPlan}>新建计划</Button>
       </div>
diff --git a/apps/web_v1/src/pages/projects/project-new-channel.tsx b/apps/web_v1/src/pages/projects/project-new-channel.tsx
index 8d97662..8cb4215 100644
--- a/apps/web_v1/src/pages/projects/project-new-channel.tsx
+++ b/apps/web_v1/src/pages/projects/project-new-channel.tsx
@@ -1,9 +1,7 @@
-import { Button, Card, Input, Select, Space, Tag, Typography } from '@arco-design/web-react'
-import { IconApps, IconLink, IconPlus } from '@arco-design/web-react/icon'
+import { Card, Empty, Typography } from '@arco-design/web-react'
 import type { ProjectWorkspace } from './project-types'
 
 const { Title, Text } = Typography
-const { TextArea } = Input
 
 export function ProjectNewChannel({ activeWorkspace }: { activeWorkspace: ProjectWorkspace }) {
   return (
@@ -11,51 +9,11 @@ export function ProjectNewChannel({ activeWorkspace }: { activeWorkspace: Projec
       <div className="overview-head">
         <div>
           <Title heading={4}>新建频道</Title>
-          <Text type="secondary">{activeWorkspace.project.name} 的频道入口配置，用于接入外部页面、资料集合或项目流程。</Text>
+          <Text type="secondary">{activeWorkspace.project.name} 暂不支持自定义频道或外部链接接入。</Text>
         </div>
-        <Button type="primary" icon={<IconPlus />}>保存频道</Button>
       </div>
-
-      <Card className="queue-section channel-editor-card" bordered>
-        <Space direction="vertical" size={12} className="action-form">
-          <label>
-            <Text>频道名称</Text>
-            <Input placeholder="例如：客户研究频道" />
-          </label>
-          <label>
-            <Text>频道类型</Text>
-            <Select defaultValue="link">
-              <Select.Option value="link">外部链接</Select.Option>
-              <Select.Option value="source">资料集合</Select.Option>
-              <Select.Option value="workflow">项目流程</Select.Option>
-            </Select>
-          </label>
-          <label>
-            <Text>图标</Text>
-            <Input placeholder="例如：link / user / file" prefix={<IconApps />} />
-          </label>
-          <label>
-            <Text>链接地址</Text>
-            <Input placeholder="https://example.com/channel" prefix={<IconLink />} />
-          </label>
-          <label>
-            <Text>说明</Text>
-            <TextArea rows={4} placeholder="频道用途、维护规则或采集说明" />
-          </label>
-        </Space>
-      </Card>
-
       <Card className="queue-section" bordered>
-        <div className="section-header">
-          <Title heading={6}>创建后可接入的内容</Title>
-          <Tag color="gray">配置预览</Tag>
-        </div>
-        <Space wrap>
-          <Tag color="arcoblue">外部资料库</Tag>
-          <Tag color="green">项目流程页</Tag>
-          <Tag color="orange">RSS/探索结果</Tag>
-          <Tag color="purple">AI智能体上下文</Tag>
-        </Space>
+        <Empty description="自定义频道暂未开放" />
       </Card>
     </div>
   )
diff --git a/apps/web_v1/src/pages/projects/project-statusbar.tsx b/apps/web_v1/src/pages/projects/project-statusbar.tsx
index a87c233..b03e286 100644
--- a/apps/web_v1/src/pages/projects/project-statusbar.tsx
+++ b/apps/web_v1/src/pages/projects/project-statusbar.tsx
@@ -1,115 +1,19 @@
-import { useState } from 'react'
-import { Avatar, Button, Card, Form, Input, Layout, Modal, Radio, Space, Typography } from '@arco-design/web-react'
-import {
-  IconApps,
-  IconCalendar,
-  IconRobot,
-  IconStorage,
-  IconUser,
-} from '@arco-design/web-react/icon'
+import { Layout, Space } from '@arco-design/web-react'
+import { IconCheckCircle } from '@arco-design/web-react/icon'
 
 const { Footer } = Layout
-const { Text, Title } = Typography
-
-const plans = [
-  { id: 'starter', name: '基础版', price: '¥29/月', desc: '个人项目、基础智能体与 20GB 存储。' },
-  { id: 'pro', name: '专业版', price: '¥99/月', desc: '团队协作、高级智能体与 200GB 存储。' },
-  { id: 'team', name: '团队版', price: '¥299/月', desc: '成员管理、审计日志与私有化部署支持。' },
-]
 
 export function ProjectStatusbar() {
-  const [profileOpen, setProfileOpen] = useState(false)
-  const [upgradeOpen, setUpgradeOpen] = useState(false)
-  const [selectedPlan, setSelectedPlan] = useState('pro')
-
   return (
-    <>
-      <Footer className="statusbar">
-        <button className="status-user" type="button" onClick={() => setProfileOpen(true)}>
-          <Avatar size={24} style={{ backgroundColor: '#165DFF' }}>张</Avatar>
-          <span className="status-identity">
-            <Text className="status-name">张明</Text>
-            <span className="status-online-dot" aria-label="在线" title="在线" />
-          </span>
-          <Button className="status-upgrade" size="mini" type="primary" onClick={(event) => {
-            event.stopPropagation()
-            setUpgradeOpen(true)
-          }}>升级</Button>
-        </button>
-
-        <Space className="status-system" size={18}>
-          <span><IconInteractionFallback /> 3 个计划进行中</span>
-          <span><IconRobot /> AI 空闲</span>
-          <span><IconStorage /> 152GB 可用</span>
-          <span>状态 <b>正常</b></span>
-          <IconApps />
-        </Space>
-      </Footer>
-
-      <Modal
-        title="个人资料"
-        visible={profileOpen}
-        onCancel={() => setProfileOpen(false)}
-        onOk={() => setProfileOpen(false)}
-        okText="保存"
-        cancelText="取消"
-      >
-        <Form layout="vertical" className="status-modal-form">
-          <Form.Item label="头像">
-            <Space>
-              <Avatar size={42} style={{ backgroundColor: '#165DFF' }}>张</Avatar>
-              <Button icon={<IconUser />}>更换头像</Button>
-            </Space>
-          </Form.Item>
-          <Form.Item label="名称">
-            <Input defaultValue="张明" placeholder="请输入名称" />
-          </Form.Item>
-          <Form.Item label="邮箱">
-            <Input defaultValue="zhangming@senlin.ai" placeholder="请输入邮箱" />
-          </Form.Item>
-          <Form.Item label="当前密码">
-            <Input.Password placeholder="用于确认身份" />
-          </Form.Item>
-          <Form.Item label="新密码">
-            <Input.Password placeholder="不修改密码可留空" />
-          </Form.Item>
-        </Form>
-      </Modal>
-
-      <Modal
-        title="升级套餐"
-        visible={upgradeOpen}
-        onCancel={() => setUpgradeOpen(false)}
-        onOk={() => setUpgradeOpen(false)}
-        okText="去支付"
-        cancelText="取消"
-      >
-        <Radio.Group value={selectedPlan} onChange={setSelectedPlan} className="billing-plan-group">
-          {plans.map((plan) => (
-            <Card className={selectedPlan === plan.id ? 'billing-plan active' : 'billing-plan'} key={plan.id} bordered>
-              <Radio value={plan.id}>
-                <div>
-                  <Title heading={6}>{plan.name}</Title>
-                  <Text className="billing-price">{plan.price}</Text>
-                  <Text type="secondary">{plan.desc}</Text>
-                </div>
-              </Radio>
-            </Card>
-          ))}
-        </Radio.Group>
-        <div className="billing-payments">
-          <Text type="secondary">支付方式</Text>
-          <Space>
-            <Button>微信支付</Button>
-            <Button>支付宝</Button>
-            <Button>企业转账</Button>
-          </Space>
-        </div>
-      </Modal>
-    </>
+    <Footer className="statusbar">
+      <div className="status-user">
+        <span className="status-avatar" aria-hidden="true">森</span>
+        <span className="status-name">已登录</span>
+      </div>
+      <Space className="status-system" size={8}>
+        <IconCheckCircle />
+        <span>服务已连接</span>
+      </Space>
+    </Footer>
   )
 }
-
-function IconInteractionFallback() {
-  return <IconCalendar />
-}
diff --git a/apps/web_v1/src/pages/projects/project-topbar.tsx b/apps/web_v1/src/pages/projects/project-topbar.tsx
index 82835ca..26d1098 100644
--- a/apps/web_v1/src/pages/projects/project-topbar.tsx
+++ b/apps/web_v1/src/pages/projects/project-topbar.tsx
@@ -28,7 +28,6 @@ export function ProjectTopbar({
   onSearch: () => void
   onSelectSearchResult: (result: SearchResultDTO) => void
 }) {
-  const desktop = isDesktopRuntime()
   const [popupVisible, setPopupVisible] = useState(false)
 
   useEffect(() => {
@@ -99,13 +98,6 @@ export function ProjectTopbar({
       </Dropdown>
       <Space className="topbar-actions">
         <Button aria-label={theme === 'dark' ? '切换浅色模式' : '切换深色模式'} icon={theme === 'dark' ? <IconSun /> : <IconMoon />} onClick={onToggleTheme} />
-        {desktop && (
-          <>
-            <Button aria-label="停靠左边" icon={<DockIcon side="left" />} />
-            <Button aria-label="停靠右边" icon={<DockIcon side="right" />} />
-          </>
-        )}
-        <Button icon={<IconApps />} />
       </Space>
     </Header>
   )
@@ -117,15 +109,3 @@ function searchTypeLabel(type: string) {
   if (type === 'note') return '笔记'
   return '未知'
 }
-
-function isDesktopRuntime() {
-  return typeof window !== 'undefined' && '__TAURI__' in window
-}
-
-function DockIcon({ side }: { side: 'left' | 'right' }) {
-  return (
-    <span className={`dock-icon dock-icon-${side}`} aria-hidden="true">
-      <span />
-    </span>
-  )
-}
diff --git a/apps/web_v1/src/pages/workspace-explore.tsx b/apps/web_v1/src/pages/workspace-explore.tsx
index 227e320..3ad310e 100644
--- a/apps/web_v1/src/pages/workspace-explore.tsx
+++ b/apps/web_v1/src/pages/workspace-explore.tsx
@@ -1,223 +1,19 @@
-import { useEffect, useMemo, useState } from 'react'
-import type { ReactNode } from 'react'
-import { Button, Card, Empty, Grid, Space, Typography } from '@arco-design/web-react'
-import {
-  IconBook,
-  IconCheckCircle,
-  IconCompass,
-  IconDelete,
-  IconEdit,
-  IconFile,
-  IconLink,
-  IconRefresh,
-  IconStar,
-  IconStorage,
-} from '@arco-design/web-react/icon'
-import type { InboxItem, Project, ProjectWorkspace } from './projects/project-types'
+import { Card, Empty, Typography } from '@arco-design/web-react'
 
-const { Row, Col } = Grid
-const { Title, Text, Paragraph } = Typography
-
-type DataSourceID = 'all' | 'manual' | 'requirements' | 'architecture'
-
-type ExploreArticle = InboxItem & {
-  project: Project
-  sourceID: DataSourceID
-}
-
-type DataSourceCard = {
-  id: DataSourceID
-  name: string
-  count: number
-  icon: ReactNode
-  color: string
-}
-
-const SOURCE_META: Record<DataSourceID, { name: string; icon: ReactNode; color: string }> = {
-  all: { name: '全部', icon: <IconStorage />, color: 'blue' },
-  manual: { name: '手动收集', icon: <IconCompass />, color: 'green' },
-  requirements: { name: '需求文档', icon: <IconFile />, color: 'orange' },
-  architecture: { name: '架构讨论', icon: <IconBook />, color: 'purple' },
-}
-
-export function WorkspaceExplorePage({
-  workspaces,
-  onSelectItem,
-}: {
-  workspaces: ProjectWorkspace[]
-  onSelectItem: (title: string) => void
-}) {
-  const articles = useMemo(
-    () =>
-      workspaces.flatMap((workspace) =>
-        workspace.inbox.map((item) => ({
-          ...item,
-          project: workspace.project,
-          sourceID: detectSource(item),
-        })),
-      ),
-    [workspaces],
-  )
-  const [activeSourceID, setActiveSourceID] = useState<DataSourceID>('all')
-  const filteredArticles = useMemo(
-    () => (activeSourceID === 'all' ? articles : articles.filter((article) => article.sourceID === activeSourceID)),
-    [activeSourceID, articles],
-  )
-  const sources = useMemo(() => dataSources(articles), [articles])
-  const [activeArticleID, setActiveArticleID] = useState<string | null>(filteredArticles[0]?.id ?? null)
-
-  useEffect(() => {
-    if (filteredArticles.length === 0) {
-      setActiveArticleID(null)
-      return
-    }
-    if (!activeArticleID || !filteredArticles.some((article) => article.id === activeArticleID)) {
-      setActiveArticleID(filteredArticles[0].id)
-    }
-  }, [activeArticleID, filteredArticles])
-
-  const selected = filteredArticles.find((article) => article.id === activeArticleID) ?? filteredArticles[0]
-  const activeSource = SOURCE_META[activeSourceID]
+const { Title, Text } = Typography
 
+export function WorkspaceExplorePage() {
   return (
     <div className="workspace-explore-page overview-page">
       <div className="overview-head">
         <div>
           <Title heading={4}>探索</Title>
-          <Text type="secondary">多个外部数据源的集中阅读页，采集文章并沉淀到项目。</Text>
+          <Text type="secondary">外部数据源与同步能力不在当前 MVP 范围内。</Text>
         </div>
-        <Space>
-          <Button icon={<IconRefresh />}>同步数据源</Button>
-          <Button type="primary" icon={<IconLink />}>
-            添加数据源
-          </Button>
-        </Space>
       </div>
-
-      <Row gutter={10} className="explore-source-row">
-        {sources.map((source) => (
-          <Col span={6} key={source.id}>
-            <Card
-              className={activeSourceID === source.id ? 'compact-card explore-source-card active' : 'compact-card explore-source-card'}
-              bordered
-              onClick={() => setActiveSourceID(source.id)}
-            >
-              <span className={`explore-source-icon ${source.color}`}>{source.icon}</span>
-              <span className="explore-source-copy">
-                <Text className="explore-source-name">{source.name}</Text>
-                <Text type="secondary">{source.count} 条</Text>
-              </span>
-              {source.id !== 'all' ? (
-                <span className="explore-source-actions" onClick={(event) => event.stopPropagation()}>
-                  <Button type="text" size="mini" icon={<IconEdit />} />
-                  <Button type="text" size="mini" status="danger" icon={<IconDelete />} />
-                </span>
-              ) : null}
-            </Card>
-          </Col>
-        ))}
-      </Row>
-
-      {selected ? (
-        <section className="explore-reader-layout">
-          <Card className="explore-article-list queue-section" bordered>
-            <div className="explore-list-header">
-              <Title heading={5}>
-                <Space size={6}>
-                  <span className={`explore-source-icon mini ${activeSource.color}`}>{activeSource.icon}</span>
-                  <span>{activeSource.name}</span>
-                </Space>
-              </Title>
-              <Button type="text" icon={<IconRefresh />} />
-            </div>
-            <div className="explore-list-body">
-              {filteredArticles.map((article) => (
-                <button
-                  key={`${article.project.id}-${article.id}`}
-                  className={article.id === selected.id ? 'explore-article-item active' : 'explore-article-item'}
-                  onClick={() => {
-                    setActiveArticleID(article.id)
-                    onSelectItem(article.title)
-                  }}
-                >
-                  <span className={`explore-source-logo ${SOURCE_META[article.sourceID].color}`}>
-                    {sourceInitial(SOURCE_META[article.sourceID].name)}
-                  </span>
-                  <span className="explore-article-copy">
-                    <Text type="secondary">
-                      {SOURCE_META[article.sourceID].name} · {article.time}
-                    </Text>
-                    <Text className="explore-article-title">{article.title}</Text>
-                    <Text className="explore-article-summary" type="secondary" ellipsis={{ showTooltip: true }}>
-                      {article.summary || '暂无正文'}
-                    </Text>
-                  </span>
-                </button>
-              ))}
-            </div>
-          </Card>
-
-          <Card className="explore-article-detail queue-section" bordered>
-            <div className="explore-detail-toolbar">
-              <Title heading={5}>{selected.title}</Title>
-              <Space>
-                <Button type="text" icon={<IconCheckCircle />} />
-                <Button type="text" icon={<IconStar />} />
-                <Button type="text" icon={<IconBook />} />
-              </Space>
-            </div>
-            <article className="explore-article-body">
-              <Space className="explore-article-meta" wrap>
-                <span className={`explore-source-logo small ${SOURCE_META[selected.sourceID].color}`}>
-                  {sourceInitial(SOURCE_META[selected.sourceID].name)}
-                </span>
-                <Text type="secondary">{SOURCE_META[selected.sourceID].name}</Text>
-                <Text type="secondary">{selected.project.name}</Text>
-                <Text type="secondary">{selected.time}</Text>
-              </Space>
-              <Paragraph className="explore-article-content">{selected.summary || '暂无正文'}</Paragraph>
-              <blockquote>
-                推荐：将外部文章中的项目机会、风险提示和资料线索归档到对应项目，形成可追踪的计划和知识资产。
-              </blockquote>
-            </article>
-          </Card>
-        </section>
-      ) : (
-        <Card className="queue-section" bordered>
-          <Empty description="暂无数据源文章" />
-        </Card>
-      )}
+      <Card className="queue-section" bordered>
+        <Empty description="探索数据源暂未开放" />
+      </Card>
     </div>
   )
 }
-
-function dataSources(articles: ExploreArticle[]): DataSourceCard[] {
-  const counts = new Map<DataSourceID, number>([
-    ['all', articles.length],
-    ['manual', 0],
-    ['requirements', 0],
-    ['architecture', 0],
-  ])
-  articles.forEach((article) => counts.set(article.sourceID, (counts.get(article.sourceID) ?? 0) + 1))
-
-  return (Object.keys(SOURCE_META) as DataSourceID[]).map((id) => ({
-    id,
-    ...SOURCE_META[id],
-    count: counts.get(id) ?? 0,
-  }))
-}
-
-function detectSource(article: InboxItem): DataSourceID {
-  const text = `${article.title} ${article.meta} ${article.tag} ${article.summary}`
-  if (/架构|技术方案|系统设计|architecture/i.test(text)) {
-    return 'architecture'
-  }
-  if (/需求|PRD|产品文档|requirement/i.test(text)) {
-    return 'requirements'
-  }
-  return 'manual'
-}
-
-function sourceInitial(name: string) {
-  return name.trim().slice(0, 1) || '源'
-}
diff --git a/apps/web_v1/src/pages/workspace-home.tsx b/apps/web_v1/src/pages/workspace-home.tsx
index 41e9645..bcc40d8 100644
--- a/apps/web_v1/src/pages/workspace-home.tsx
+++ b/apps/web_v1/src/pages/workspace-home.tsx
@@ -9,6 +9,7 @@ import { ProjectStatusbar } from './projects/project-statusbar'
 import { ProjectTopbar } from './projects/project-topbar'
 import type { SearchResultDTO } from '../api/search'
 import type { InboxSuggestionDTO } from '../api/inbox'
+import type { AISessionDTO, CreateAISessionInput } from '../api/ai'
 import type { ChannelKey, InboxConfirmationOutcome, Project, ProjectWorkspace, Theme, WorkbenchView } from './projects/project-types'
 
 const { Content } = Layout
@@ -44,6 +45,8 @@ export function ProjectPage({
   onSelectSearchResult,
   onAnalyzeInbox,
   onConfirmInbox,
+  onListAISessions,
+  onCreateAISession,
 }: {
   activeView: WorkbenchView
   activeWorkspace: ProjectWorkspace
@@ -75,6 +78,8 @@ export function ProjectPage({
   onSelectSearchResult: (result: SearchResultDTO) => void
   onAnalyzeInbox: (inboxId: string) => Promise<InboxSuggestionDTO[]>
   onConfirmInbox: (inboxId: string, suggestionIds: string[]) => Promise<InboxConfirmationOutcome>
+  onListAISessions: (projectId: string) => Promise<AISessionDTO[]>
+  onCreateAISession: (projectId: string, input: CreateAISessionInput) => Promise<AISessionDTO>
 }) {
   const isProject = activeView === 'project'
   const projects = workspaces.map((workspace) => workspace.project)
@@ -130,7 +135,7 @@ export function ProjectPage({
           {activeView === 'workspace' ? (
             <WorkspacePage workspaces={workspaces} onOpenTask={onOpenTask} onUpdateTask={onUpdateWorkspaceTask} />
           ) : activeView === 'workspace-explore' ? (
-            <WorkspaceExplorePage workspaces={workspaces} onSelectItem={onSelectItem} />
+            <WorkspaceExplorePage />
           ) : (
             <ProjectChannelPage
               activeChannel={activeChannel}
@@ -146,6 +151,8 @@ export function ProjectPage({
               onUpdateTask={updateActiveProjectTask}
               onAnalyzeInbox={onAnalyzeInbox}
               onConfirmInbox={onConfirmInbox}
+              onListAISessions={onListAISessions}
+              onCreateAISession={onCreateAISession}
             />
           )}
         </Content>
diff --git a/backend/cmd/api/main.go b/backend/cmd/api/main.go
index 989ce8c..852ea04 100644
--- a/backend/cmd/api/main.go
+++ b/backend/cmd/api/main.go
@@ -5,6 +5,7 @@ import (
 
 	"senlinai-agent/backend/internal/config"
 	"senlinai-agent/backend/internal/httpx"
+	"senlinai-agent/backend/internal/logic/ai"
 	"senlinai-agent/backend/internal/logic/auth"
 	"senlinai-agent/backend/internal/logic/files"
 	"senlinai-agent/backend/internal/logic/inbox"
@@ -33,6 +34,8 @@ func main() {
 	fileHandler := files.NewHandler(fileService, cfg.MaxUploadBytes)
 	inboxHandler := inbox.NewHandler(inbox.NewService(inbox.StaticAnalyzer{}))
 	searchHandler := search.NewHandler(search.NewService(models.DBService))
+	aiGateway := ai.NewGatewayWithSecret(cfg.SystemAIKey, cfg.AIKeyEncryptionSecret)
+	aiHandler := ai.NewHandler(ai.NewSessionService(aiGateway))
 	authHandler := auth.NewHandler(authService)
 	appRouter := httpx.NewProtectedRouter(
 		cfg,
@@ -45,6 +48,7 @@ func main() {
 		fileHandler,
 		inboxHandler,
 		searchHandler,
+		aiHandler,
 	)
 	if err := appRouter.Run(":" + cfg.Port); err != nil {
 		log.Fatal(err)
diff --git a/backend/internal/logic/ai/gateway.go b/backend/internal/logic/ai/gateway.go
index f1fdd4d..d8889e5 100644
--- a/backend/internal/logic/ai/gateway.go
+++ b/backend/internal/logic/ai/gateway.go
@@ -10,6 +10,7 @@ import (
 	"io"
 	"time"
 
+	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 	"senlinai-agent/backend/internal/models"
 )
@@ -25,6 +26,11 @@ type SelectedKey struct {
 	KeyType  string
 }
 
+var (
+	ErrAIKeyMissing  = errors.New("no ai key available")
+	ErrAIRateLimited = errors.New("ai rate limit exceeded")
+)
+
 func NewGateway(systemKey string) *Gateway {
 	return NewGatewayWithSecret(systemKey, "development-ai-key-secret-change-me")
 }
@@ -47,15 +53,19 @@ func (g *Gateway) SaveUserKey(userID uint, provider string, apiKey string) error
 
 func (g *Gateway) SelectKey(userID uint) (SelectedKey, error) {
 	var userKey models.SenlinAgentAIKey
-	if err := models.DBService.Where("user_id = ?", userID).First(&userKey).Error; err == nil {
+	err := models.DBService.Where("user_id = ?", userID).First(&userKey).Error
+	if err == nil {
 		apiKey, err := decryptAPIKey(userKey.EncryptedAPIKey, g.encryptionSecret)
 		if err != nil {
 			return SelectedKey{}, err
 		}
 		return SelectedKey{Provider: userKey.Provider, APIKey: apiKey, KeyType: "user"}, nil
 	}
+	if !errors.Is(err, gorm.ErrRecordNotFound) {
+		return SelectedKey{}, err
+	}
 	if g.systemKey == "" {
-		return SelectedKey{}, errors.New("no ai key available")
+		return SelectedKey{}, ErrAIKeyMissing
 	}
 	return SelectedKey{Provider: "openai", APIKey: g.systemKey, KeyType: "system"}, nil
 }
@@ -82,7 +92,7 @@ func (g *Gateway) CheckRateLimit(userID uint, action string, limit int, window t
 		return err
 	}
 	if count >= int64(limit) {
-		return errors.New("ai rate limit exceeded")
+		return ErrAIRateLimited
 	}
 	return nil
 }
diff --git a/backend/internal/logic/ai/gateway_test.go b/backend/internal/logic/ai/gateway_test.go
index e66f6fb..b85c21e 100644
--- a/backend/internal/logic/ai/gateway_test.go
+++ b/backend/internal/logic/ai/gateway_test.go
@@ -8,6 +8,7 @@ import (
 	"github.com/glebarez/sqlite"
 	"github.com/stretchr/testify/require"
 	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
 	"senlinai-agent/backend/internal/models"
 )
 
@@ -85,20 +86,25 @@ func TestCheckRateLimitRejectsCallsOverWindow(t *testing.T) {
 }
 
 func TestCreateAISession(t *testing.T) {
-	newTestDB(t)
-	service := NewSessionService()
+	database := newTestDB(t)
+	user := models.SenlinAgentUser{Email: "session@example.com", DisplayName: "Session User", PasswordHash: "hash"}
+	require.NoError(t, database.Create(&user).Error)
+	project := models.SenlinAgentProject{OwnerID: user.ID, Name: "Session Project", Identifier: "SESSION"}
+	require.NoError(t, database.Create(&project).Error)
+	service := NewSessionService(NewGateway("system-key"))
 
-	session, err := service.Create(7, 3, "报价分析")
+	session, err := service.Create(user.ID, project.Identity, "报价分析", "询价上下文")
 
 	require.NoError(t, err)
-	require.Equal(t, uint(7), session.ProjectID)
-	require.Equal(t, uint(3), session.CreatedBy)
+	require.Equal(t, project.ID, session.ProjectID)
+	require.Equal(t, user.ID, session.CreatedBy)
 	require.Equal(t, "报价分析", session.Title)
+	require.Equal(t, "ready", session.Status)
 }
 
 func newTestDB(t *testing.T) *gorm.DB {
 	t.Helper()
-	database, err := gorm.Open(sqlite.Open(fmt.Sprintf("file:%s?mode=memory&cache=shared", t.Name())), &gorm.Config{})
+	database, err := gorm.Open(sqlite.Open(fmt.Sprintf("file:%s?mode=memory&cache=shared", t.Name())), &gorm.Config{Logger: logger.Default.LogMode(logger.Silent)})
 	require.NoError(t, err)
 	require.NoError(t, models.AutoMigrate(database))
 	models.DBService = database
diff --git a/backend/internal/logic/ai/handlers.go b/backend/internal/logic/ai/handlers.go
new file mode 100644
index 0000000..d31d9aa
--- /dev/null
+++ b/backend/internal/logic/ai/handlers.go
@@ -0,0 +1,120 @@
+package ai
+
+import (
+	"errors"
+	"log"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
+	"senlinai-agent/backend/internal/httpx"
+	"senlinai-agent/backend/internal/logic/auth"
+	"senlinai-agent/backend/internal/models"
+)
+
+// SessionDTO 是普通项目 AI 会话的公开契约，不携带数据库主键或自动创建对象的 ID。
+type SessionDTO struct {
+	ID        string    `json:"id"`
+	ProjectID string    `json:"projectId"`
+	Title     string    `json:"title"`
+	Context   string    `json:"context"`
+	Status    string    `json:"status"`
+	CreatedAt time.Time `json:"createdAt"`
+	UpdatedAt time.Time `json:"updatedAt"`
+}
+
+type createSessionRequest struct {
+	Title   string `json:"title"`
+	Context string `json:"context"`
+}
+
+// Handler 注册受认证、受项目所有权保护的 AI 会话接口。
+type Handler struct {
+	service *SessionService
+}
+
+func NewHandler(service *SessionService) *Handler {
+	return &Handler{service: service}
+}
+
+func (h *Handler) Register(router gin.IRouter) {
+	router.GET("/projects/:projectId/ai-sessions", h.list)
+	router.POST("/projects/:projectId/ai-sessions", h.create)
+}
+
+func (h *Handler) list(c *gin.Context) {
+	userID, projectIdentity, ok := aiRequestContext(c)
+	if !ok {
+		return
+	}
+	sessions, err := h.service.List(userID, projectIdentity)
+	if err != nil {
+		writeAIError(c, err)
+		return
+	}
+	items := make([]SessionDTO, 0, len(sessions))
+	for _, session := range sessions {
+		items = append(items, sessionDTO(session))
+	}
+	c.JSON(http.StatusOK, items)
+}
+
+func (h *Handler) create(c *gin.Context) {
+	userID, projectIdentity, ok := aiRequestContext(c)
+	if !ok {
+		return
+	}
+	var input createSessionRequest
+	if err := c.ShouldBindJSON(&input); err != nil {
+		httpx.Error(c, http.StatusBadRequest, "invalid_request", "请求参数无效")
+		return
+	}
+	session, err := h.service.Create(userID, projectIdentity, input.Title, input.Context)
+	if err != nil {
+		writeAIError(c, err)
+		return
+	}
+	c.JSON(http.StatusCreated, sessionDTO(*session))
+}
+
+func aiRequestContext(c *gin.Context) (uint, string, bool) {
+	userID, ok := auth.CurrentUserID(c)
+	if !ok {
+		httpx.Error(c, http.StatusUnauthorized, "unauthorized", "未登录或登录已失效")
+		return 0, "", false
+	}
+	projectIdentity, ok := httpx.IdentityParam(c, "projectId")
+	if !ok {
+		return 0, "", false
+	}
+	return userID, projectIdentity, true
+}
+
+func sessionDTO(session models.SenlinAgentAISession) SessionDTO {
+	return SessionDTO{
+		ID:        session.Identity,
+		ProjectID: session.ProjectIdentity,
+		Title:     session.Title,
+		Context:   session.Context,
+		Status:    aiSessionStatus(session),
+		CreatedAt: session.CreatedAt.UTC(),
+		UpdatedAt: session.UpdatedAt.UTC(),
+	}
+}
+
+func writeAIError(c *gin.Context, err error) {
+	switch {
+	case errors.Is(err, gorm.ErrRecordNotFound):
+		httpx.Error(c, http.StatusNotFound, "not_found", "项目不存在或无权访问")
+	case errors.Is(err, ErrInvalidSession):
+		httpx.Error(c, http.StatusBadRequest, "invalid_request", "请输入 AI 会话标题")
+	case errors.Is(err, ErrAIRateLimited):
+		httpx.Error(c, http.StatusTooManyRequests, "ai_rate_limited", "AI 请求过于频繁，请稍后重试")
+	case errors.Is(err, ErrAIKeyMissing):
+		httpx.Error(c, http.StatusServiceUnavailable, "ai_key_missing", "尚未配置可用的 AI 密钥")
+	default:
+		log.Printf("ai session request failed: %v", err)
+		httpx.Error(c, http.StatusInternalServerError, "internal_error", "AI 会话操作失败，请稍后重试")
+	}
+}
diff --git a/backend/internal/logic/ai/handlers_test.go b/backend/internal/logic/ai/handlers_test.go
new file mode 100644
index 0000000..fa552d7
--- /dev/null
+++ b/backend/internal/logic/ai/handlers_test.go
@@ -0,0 +1,278 @@
+package ai
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/glebarez/sqlite"
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+	"senlinai-agent/backend/internal/config"
+	"senlinai-agent/backend/internal/httpx"
+	"senlinai-agent/backend/internal/models"
+)
+
+func TestAISessionHandlersRequireOwnedProject(t *testing.T) {
+	database := newAIHandlerTestDB(t)
+	owner := createAIHandlerUser(t, database, "owner@example.com")
+	intruder := createAIHandlerUser(t, database, "intruder@example.com")
+	project := createAIHandlerProject(t, database, owner.ID, "PRIVATE")
+	gateway := &recordingSessionGateway{}
+	router := aiHandlerTestRouter(intruder.ID, gateway)
+
+	for _, request := range []*http.Request{
+		authenticatedAIRequest(t, http.MethodGet, "/api/v1/projects/"+project.Identity+"/ai-sessions", nil),
+		authenticatedAIRequest(t, http.MethodPost, "/api/v1/projects/"+project.Identity+"/ai-sessions", map[string]any{
+			"title": "越权会话", "context": "不得创建",
+		}),
+	} {
+		recorder := httptest.NewRecorder()
+		router.ServeHTTP(recorder, request)
+
+		require.Equal(t, http.StatusNotFound, recorder.Code)
+		var payload httpx.ErrorEnvelope
+		require.NoError(t, json.Unmarshal(recorder.Body.Bytes(), &payload))
+		require.Equal(t, "not_found", payload.Error.Code)
+		require.Equal(t, "项目不存在或无权访问", payload.Error.Message)
+	}
+
+	var count int64
+	require.NoError(t, database.Model(&models.SenlinAgentAISession{}).Count(&count).Error)
+	require.Zero(t, count)
+	require.Empty(t, gateway.steps)
+}
+
+func TestCreateAISessionChecksRateLimitBeforeSelectingProvider(t *testing.T) {
+	database := newAIHandlerTestDB(t)
+	owner := createAIHandlerUser(t, database, "owner@example.com")
+	project := createAIHandlerProject(t, database, owner.ID, "RATE")
+	gateway := &recordingSessionGateway{
+		selected: SelectedKey{Provider: "openai", APIKey: "system-key", KeyType: "system"},
+	}
+	router := aiHandlerTestRouter(owner.ID, gateway)
+	recorder := httptest.NewRecorder()
+
+	router.ServeHTTP(recorder, authenticatedAIRequest(t, http.MethodPost, "/api/v1/projects/"+project.Identity+"/ai-sessions", map[string]any{
+		"title": "限流顺序", "context": "只创建受控会话",
+	}))
+
+	require.Equal(t, http.StatusCreated, recorder.Code)
+	require.Equal(t, []string{"rate", "select", "record"}, gateway.steps)
+}
+
+func TestCreateAISessionReturnsRateLimitBeforeMissingKeyAndAuditsFailure(t *testing.T) {
+	database := newAIHandlerTestDB(t)
+	owner := createAIHandlerUser(t, database, "owner@example.com")
+	project := createAIHandlerProject(t, database, owner.ID, "LIMITED")
+	gateway := NewGatewayWithSecret("", "test-encryption-secret")
+	for range aiSessionCreateLimit {
+		require.NoError(t, gateway.RecordCall(owner.ID, "openai", "system", "ai_session_create", "ready", ""))
+	}
+	router := aiHandlerTestRouter(owner.ID, gateway)
+	recorder := httptest.NewRecorder()
+
+	router.ServeHTTP(recorder, authenticatedAIRequest(t, http.MethodPost, "/api/v1/projects/"+project.Identity+"/ai-sessions", map[string]any{
+		"title": "超过限额", "context": "必须先返回限流",
+	}))
+
+	require.Equal(t, http.StatusTooManyRequests, recorder.Code)
+	var payload httpx.ErrorEnvelope
+	require.NoError(t, json.Unmarshal(recorder.Body.Bytes(), &payload))
+	require.Equal(t, "ai_rate_limited", payload.Error.Code)
+	require.Equal(t, "AI 请求过于频繁，请稍后重试", payload.Error.Message)
+	var latest models.SenlinAgentAICallLog
+	require.NoError(t, database.Order("id desc").First(&latest).Error)
+	require.Equal(t, "none", latest.Provider)
+	require.Equal(t, "none", latest.UsedKeyType)
+	require.Equal(t, "ai_session_create", latest.Action)
+	require.Equal(t, "failed", latest.Status)
+	require.Equal(t, "ai_rate_limited", latest.Error)
+}
+
+func TestCreateAISessionWithoutKeyReturnsAuditedErrorAndCreatesNoFormalObjects(t *testing.T) {
+	database := newAIHandlerTestDB(t)
+	owner := createAIHandlerUser(t, database, "owner@example.com")
+	project := createAIHandlerProject(t, database, owner.ID, "NO_KEY")
+	router := aiHandlerTestRouter(owner.ID, NewGatewayWithSecret("", "test-encryption-secret"))
+	recorder := httptest.NewRecorder()
+
+	router.ServeHTTP(recorder, authenticatedAIRequest(t, http.MethodPost, "/api/v1/projects/"+project.Identity+"/ai-sessions", map[string]any{
+		"title": "缺少密钥", "context": "不得伪装为已完成",
+	}))
+
+	require.Equal(t, http.StatusServiceUnavailable, recorder.Code)
+	var payload httpx.ErrorEnvelope
+	require.NoError(t, json.Unmarshal(recorder.Body.Bytes(), &payload))
+	require.Equal(t, "ai_key_missing", payload.Error.Code)
+	require.Equal(t, "尚未配置可用的 AI 密钥", payload.Error.Message)
+	for _, model := range []any{
+		&models.SenlinAgentAISession{},
+		&models.SenlinAgentTask{},
+		&models.SenlinAgentNote{},
+		&models.SenlinAgentSource{},
+	} {
+		var count int64
+		require.NoError(t, database.Model(model).Count(&count).Error)
+		require.Zero(t, count)
+	}
+	var call models.SenlinAgentAICallLog
+	require.NoError(t, database.First(&call).Error)
+	require.Equal(t, owner.ID, call.UserID)
+	require.Equal(t, "none", call.Provider)
+	require.Equal(t, "none", call.UsedKeyType)
+	require.Equal(t, "ai_session_create", call.Action)
+	require.Equal(t, "failed", call.Status)
+	require.Equal(t, "ai_key_missing", call.Error)
+}
+
+func TestCreateAISessionReturnsIdentityDTOAndCompleteAuditWithoutAutomaticObjectIDs(t *testing.T) {
+	database := newAIHandlerTestDB(t)
+	owner := createAIHandlerUser(t, database, "owner@example.com")
+	project := createAIHandlerProject(t, database, owner.ID, "CREATE")
+	router := aiHandlerTestRouter(owner.ID, NewGatewayWithSecret("system-key", "test-encryption-secret"))
+	recorder := httptest.NewRecorder()
+
+	router.ServeHTTP(recorder, authenticatedAIRequest(t, http.MethodPost, "/api/v1/projects/"+project.Identity+"/ai-sessions", map[string]any{
+		"title": "报价分析", "context": "仅整理会话上下文",
+	}))
+
+	require.Equal(t, http.StatusCreated, recorder.Code)
+	var payload map[string]any
+	require.NoError(t, json.Unmarshal(recorder.Body.Bytes(), &payload))
+	require.ElementsMatch(t, []string{"id", "projectId", "title", "context", "status", "createdAt", "updatedAt"}, aiMapKeys(payload))
+	identity, err := uuid.Parse(payload["id"].(string))
+	require.NoError(t, err)
+	require.Equal(t, uuid.Version(7), identity.Version())
+	require.Equal(t, project.Identity, payload["projectId"])
+	require.Equal(t, "报价分析", payload["title"])
+	require.Equal(t, "仅整理会话上下文", payload["context"])
+	require.Equal(t, "ready", payload["status"])
+	for _, forbidden := range []string{"taskId", "noteId", "sourceId", "createdTaskId", "createdNoteId", "createdSourceId"} {
+		require.NotContains(t, payload, forbidden)
+	}
+
+	var call models.SenlinAgentAICallLog
+	require.NoError(t, database.First(&call).Error)
+	require.Equal(t, "openai", call.Provider)
+	require.Equal(t, "system", call.UsedKeyType)
+	require.Equal(t, "ai_session_create", call.Action)
+	require.Equal(t, "ready", call.Status)
+	require.Empty(t, call.Error)
+	for _, model := range []any{&models.SenlinAgentTask{}, &models.SenlinAgentNote{}, &models.SenlinAgentSource{}} {
+		var count int64
+		require.NoError(t, database.Model(model).Count(&count).Error)
+		require.Zero(t, count)
+	}
+}
+
+func TestListAISessionsReturnsOnlyOwnedProjectIdentityDTOs(t *testing.T) {
+	database := newAIHandlerTestDB(t)
+	owner := createAIHandlerUser(t, database, "owner@example.com")
+	project := createAIHandlerProject(t, database, owner.ID, "LIST")
+	otherProject := createAIHandlerProject(t, database, owner.ID, "OTHER")
+	require.NoError(t, database.Create(&models.SenlinAgentAISession{
+		ProjectID: project.ID, CreatedBy: owner.ID, Title: "目标会话", Context: "项目上下文",
+	}).Error)
+	require.NoError(t, database.Create(&models.SenlinAgentAISession{
+		ProjectID: otherProject.ID, CreatedBy: owner.ID, Title: "其他会话", Context: "不得混入",
+	}).Error)
+	router := aiHandlerTestRouter(owner.ID, &recordingSessionGateway{})
+	recorder := httptest.NewRecorder()
+
+	router.ServeHTTP(recorder, authenticatedAIRequest(t, http.MethodGet, "/api/v1/projects/"+project.Identity+"/ai-sessions", nil))
+
+	require.Equal(t, http.StatusOK, recorder.Code)
+	var payload []map[string]any
+	require.NoError(t, json.Unmarshal(recorder.Body.Bytes(), &payload))
+	require.Len(t, payload, 1)
+	require.ElementsMatch(t, []string{"id", "projectId", "title", "context", "status", "createdAt", "updatedAt"}, aiMapKeys(payload[0]))
+	require.Equal(t, project.Identity, payload[0]["projectId"])
+	require.Equal(t, "目标会话", payload[0]["title"])
+	require.Equal(t, "ready", payload[0]["status"])
+}
+
+type recordingSessionGateway struct {
+	steps     []string
+	selected  SelectedKey
+	rateErr   error
+	selectErr error
+}
+
+func (g *recordingSessionGateway) CheckRateLimit(uint, string, int, time.Duration) error {
+	g.steps = append(g.steps, "rate")
+	return g.rateErr
+}
+
+func (g *recordingSessionGateway) SelectKey(uint) (SelectedKey, error) {
+	g.steps = append(g.steps, "select")
+	return g.selected, g.selectErr
+}
+
+func (g *recordingSessionGateway) RecordCall(uint, string, string, string, string, string) error {
+	g.steps = append(g.steps, "record")
+	return nil
+}
+
+func newAIHandlerTestDB(t *testing.T) *gorm.DB {
+	t.Helper()
+	database, err := gorm.Open(sqlite.Open(fmt.Sprintf("file:%s?mode=memory&cache=shared", t.Name())), &gorm.Config{Logger: logger.Default.LogMode(logger.Silent)})
+	require.NoError(t, err)
+	require.NoError(t, models.AutoMigrate(database))
+	models.DBService = database
+	return database
+}
+
+func createAIHandlerUser(t *testing.T, database *gorm.DB, email string) models.SenlinAgentUser {
+	t.Helper()
+	user := models.SenlinAgentUser{Email: email, DisplayName: email, PasswordHash: "hash"}
+	require.NoError(t, database.Create(&user).Error)
+	return user
+}
+
+func createAIHandlerProject(t *testing.T, database *gorm.DB, ownerID uint, identifier string) models.SenlinAgentProject {
+	t.Helper()
+	project := models.SenlinAgentProject{OwnerID: ownerID, Name: identifier, Identifier: identifier}
+	require.NoError(t, database.Create(&project).Error)
+	return project
+}
+
+func aiHandlerTestRouter(userID uint, gateway sessionGateway) http.Handler {
+	return httpx.NewProtectedRouter(
+		config.Config{Env: "test"},
+		func(string) (uint, error) { return userID, nil },
+		NewHandler(NewSessionService(gateway)),
+	)
+}
+
+func authenticatedAIRequest(t *testing.T, method, path string, body any) *http.Request {
+	t.Helper()
+	var requestBody *bytes.Reader
+	if body == nil {
+		requestBody = bytes.NewReader(nil)
+	} else {
+		encoded, err := json.Marshal(body)
+		require.NoError(t, err)
+		requestBody = bytes.NewReader(encoded)
+	}
+	request := httptest.NewRequest(method, path, requestBody)
+	request.Header.Set("Authorization", "Bearer test-token")
+	if body != nil {
+		request.Header.Set("Content-Type", "application/json")
+	}
+	return request
+}
+
+func aiMapKeys(values map[string]any) []string {
+	keys := make([]string, 0, len(values))
+	for key := range values {
+		keys = append(keys, key)
+	}
+	return keys
+}
diff --git a/backend/internal/logic/ai/sessions.go b/backend/internal/logic/ai/sessions.go
index f48c02c..3e59d48 100644
--- a/backend/internal/logic/ai/sessions.go
+++ b/backend/internal/logic/ai/sessions.go
@@ -2,23 +2,118 @@ package ai
 
 import (
 	"errors"
+	"fmt"
 	"strings"
+	"time"
 
+	"senlinai-agent/backend/internal/logic/projects"
 	"senlinai-agent/backend/internal/models"
 )
 
+const (
+	aiSessionCreateAction = "ai_session_create"
+	aiSessionCreateLimit  = 20
+	defaultSessionStatus  = "ready"
+)
+
+var (
+	ErrInvalidSession = errors.New("invalid ai session")
+)
+
+type sessionGateway interface {
+	CheckRateLimit(userID uint, action string, limit int, window time.Duration) error
+	SelectKey(userID uint) (SelectedKey, error)
+	RecordCall(userID uint, provider string, usedKeyType string, action string, status string, errText string) error
+}
+
+// SessionService 只管理项目内普通 AI 会话；它不会把上下文自动转换为任务、笔记或资料。
 type SessionService struct {
+	gateway sessionGateway
 }
 
-func NewSessionService() *SessionService {
-	return &SessionService{}
+func NewSessionService(gateway sessionGateway) *SessionService {
+	return &SessionService{gateway: gateway}
 }
 
-func (s *SessionService) Create(projectID uint, userID uint, title string) (*models.SenlinAgentAISession, error) {
-	title = strings.TrimSpace(title)
-	if title == "" {
-		return nil, errors.New("session title is required")
+// List 在项目 owner 校验后返回该项目的会话，内部自增 ID 不离开服务边界。
+func (s *SessionService) List(userID uint, projectIdentity string) ([]models.SenlinAgentAISession, error) {
+	project, err := projects.FindOwnedProject(userID, projectIdentity)
+	if err != nil {
+		return nil, err
 	}
-	session := &models.SenlinAgentAISession{ProjectID: projectID, CreatedBy: userID, Title: title}
-	return session, models.DBService.Create(session).Error
+	var sessions []models.SenlinAgentAISession
+	if err := models.DBService.Where("project_id = ?", project.ID).Order("updated_at desc, id desc").Find(&sessions).Error; err != nil {
+		return nil, err
+	}
+	if sessions == nil {
+		sessions = []models.SenlinAgentAISession{}
+	}
+	return sessions, nil
+}
+
+// Create 先校验项目，再限流，最后才选择 provider/key；会话创建不会生成任何正式业务对象。
+func (s *SessionService) Create(userID uint, projectIdentity, title, context string) (*models.SenlinAgentAISession, error) {
+	title = strings.TrimSpace(title)
+	context = strings.TrimSpace(context)
+	if title == "" {
+		return nil, ErrInvalidSession
+	}
+	project, err := projects.FindOwnedProject(userID, projectIdentity)
+	if err != nil {
+		return nil, err
+	}
+	if s.gateway == nil {
+		return nil, errors.New("ai gateway is required")
+	}
+
+	if err := s.gateway.CheckRateLimit(userID, aiSessionCreateAction, aiSessionCreateLimit, time.Hour); err != nil {
+		if errors.Is(err, ErrAIRateLimited) {
+			if auditErr := s.gateway.RecordCall(userID, "none", "none", aiSessionCreateAction, "failed", "ai_rate_limited"); auditErr != nil {
+				return nil, fmt.Errorf("record ai rate limit failure: %w", auditErr)
+			}
+			return nil, ErrAIRateLimited
+		}
+		if auditErr := s.gateway.RecordCall(userID, "none", "none", aiSessionCreateAction, "failed", "rate_limit_check_failed"); auditErr != nil {
+			return nil, fmt.Errorf("check rate limit: %v; record failure: %w", err, auditErr)
+		}
+		return nil, err
+	}
+
+	selected, err := s.gateway.SelectKey(userID)
+	if err != nil {
+		code := "provider_selection_failed"
+		if errors.Is(err, ErrAIKeyMissing) {
+			code = "ai_key_missing"
+		}
+		if auditErr := s.gateway.RecordCall(userID, "none", "none", aiSessionCreateAction, "failed", code); auditErr != nil {
+			return nil, fmt.Errorf("select ai key: %v; record failure: %w", err, auditErr)
+		}
+		return nil, err
+	}
+
+	session := models.SenlinAgentAISession{
+		ProjectID: project.ID,
+		CreatedBy: userID,
+		Title:     title,
+		Context:   context,
+		Status:    defaultSessionStatus,
+	}
+	if err := models.DBService.Create(&session).Error; err != nil {
+		if auditErr := s.gateway.RecordCall(userID, selected.Provider, selected.KeyType, aiSessionCreateAction, "failed", "session_create_failed"); auditErr != nil {
+			return nil, fmt.Errorf("create ai session: %v; record failure: %w", err, auditErr)
+		}
+		return nil, err
+	}
+	// ready 只表示会话入口已建立，不表示 provider 已回复或任何业务对象已创建。
+	if err := s.gateway.RecordCall(userID, selected.Provider, selected.KeyType, aiSessionCreateAction, defaultSessionStatus, ""); err != nil {
+		return nil, fmt.Errorf("record ai session creation: %w", err)
+	}
+	return &session, nil
+}
+
+func aiSessionStatus(session models.SenlinAgentAISession) string {
+	if status := strings.TrimSpace(session.Status); status != "" {
+		return status
+	}
+	return defaultSessionStatus
 }
diff --git a/backend/internal/models/ai_session.go b/backend/internal/models/ai_session.go
index b5c4d58..c65fd2e 100644
--- a/backend/internal/models/ai_session.go
+++ b/backend/internal/models/ai_session.go
@@ -11,6 +11,7 @@ type SenlinAgentAISession struct {
 	CreatedByIdentity string `gorm:"type:char(36);index"`
 	Title             string `gorm:"not null"`
 	Context           string `gorm:"type:text"`
+	Status            string `gorm:"not null;default:ready"`
 	CreatedAt         time.Time
 	UpdatedAt         time.Time
 }