update

build-apk.ps1

@@ -1,57 +0,0 @@
-# Manual APK build pipeline: aapt2 -> javac -> d8 -> jar -> zipalign -> apksigner
-$root = 'c:\Users\shz73\Documents\Qoder\2026-08-09\chat-1\device-management-system'
-$jdk = "$root\android-tools\jdk\jdk-17.0.20+8"
-$sdk = "$root\android-sdk"
-$bt = "$sdk\build-tools\33.0.2"
-$androidJar = "$sdk\platforms\android-33\android.jar"
-$proj = "$root\android-app"
-$build = "$proj\build"
-
-$env:JAVA_HOME = $jdk
-$env:Path = "$jdk\bin;" + $env:Path
-
-if (Test-Path $build) { Remove-Item $build -Recurse -Force }
-New-Item -ItemType Directory -Force -Path "$build\gen" | Out-Null
-New-Item -ItemType Directory -Force -Path "$build\classes" | Out-Null
-New-Item -ItemType Directory -Force -Path "$build\dex" | Out-Null
-
-Write-Host '=== 1. aapt2 compile ==='
-& "$bt\aapt2.exe" compile --dir "$proj\res" -o "$build\res.zip"
-if ($LASTEXITCODE -ne 0) { Write-Host 'AAPT2 COMPILE FAILED'; exit 1 }
-
-Write-Host '=== 2. aapt2 link ==='
-& "$bt\aapt2.exe" link -o "$build\app.unsigned.apk" -I $androidJar --manifest "$proj\AndroidManifest.xml" --java "$build\gen" --auto-add-overlay "$build\res.zip"
-if ($LASTEXITCODE -ne 0) { Write-Host 'AAPT2 LINK FAILED'; exit 1 }
-
-Write-Host '=== 3. javac ==='
-$srcs = @(Get-ChildItem -Recurse -Filter *.java "$build\gen" | ForEach-Object { $_.FullName }) + @(Get-ChildItem -Recurse -Filter *.java "$proj\src" | ForEach-Object { $_.FullName })
-& "$jdk\bin\javac.exe" -classpath $androidJar -d "$build\classes" @srcs
-if ($LASTEXITCODE -ne 0) { Write-Host 'JAVAC FAILED'; exit 1 }
-
-Write-Host '=== 4. d8 ==='
-$classes = Get-ChildItem -Recurse -Filter *.class "$build\classes" | ForEach-Object { $_.FullName }
-& "$jdk\bin\java.exe" -cp "$bt\lib\d8.jar" com.android.tools.r8.D8 --output "$build\dex" --lib $androidJar @classes
-if ($LASTEXITCODE -ne 0) { Write-Host 'D8 FAILED'; exit 1 }
-
-Write-Host '=== 5. add classes.dex ==='
-Push-Location "$build\dex"
-& "$jdk\bin\jar.exe" uf "$build\app.unsigned.apk" classes.dex
-Pop-Location
-if ($LASTEXITCODE -ne 0) { Write-Host 'JAR ADD FAILED'; exit 1 }
-
-Write-Host '=== 6. zipalign ==='
-& "$bt\zipalign.exe" -f 4 "$build\app.unsigned.apk" "$build\app-aligned.apk"
-if ($LASTEXITCODE -ne 0) { Write-Host 'ZIPALIGN FAILED'; exit 1 }
-
-Write-Host '=== 7. sign ==='
-$ks = "$build\debug.keystore"
-if (-not (Test-Path $ks)) {
-  & "$jdk\bin\keytool.exe" -genkeypair -keystore $ks -storepass android -alias androiddebugkey -keypass android -keyalg RSA -keysize 2048 -validity 10000 -dname 'CN=Android Debug,O=Android'
-}
-& "$jdk\bin\java.exe" -jar "$bt\lib\apksigner.jar" sign --ks $ks --ks-pass pass:android --key-pass pass:android --ks-key-alias androiddebugkey --out "$build\yingshi-device-manager.apk" "$build\app-aligned.apk"
-if ($LASTEXITCODE -ne 0) { Write-Host 'SIGN FAILED'; exit 1 }
-
-Write-Host '=== 8. verify ==='
-& "$jdk\bin\java.exe" -jar "$bt\lib\apksigner.jar" verify --verbose "$build\yingshi-device-manager.apk"
-Get-Item "$build\yingshi-device-manager.apk" | Select-Object Name, Length
-Write-Host 'APK-BUILD-DONE'

build-exe2.ps1

@@ -1,13 +0,0 @@
-# Build EXE with signing disabled
-$env:Path = 'C:\Program Files\nodejs;' + $env:Path
-$env:ELECTRON_MIRROR = 'https://npmmirror.com/mirrors/electron/'
-$env:ELECTRON_BUILDER_BINARIES_MIRROR = 'https://npmmirror.com/mirrors/electron-builder-binaries/'
-$env:CSC_IDENTITY_AUTO_DISCOVERY = 'false'
-Set-Location 'c:\Users\shz73\Documents\Qoder\2026-08-09\chat-1\device-management-system'
-
-Write-Host '=== electron-builder --win ==='
-& 'C:\Program Files\nodejs\node.exe' node_modules\electron-builder\out\cli\cli.js --win
-if ($LASTEXITCODE -ne 0) { Write-Host 'electron-builder failed'; exit 1 }
-
-Write-Host '=== output files ==='
-Get-ChildItem dist-electron -File | Select-Object Name, Length

build-hap.ps1

@@ -1,105 +0,0 @@
-# HarmonyOS HAP build pipeline (OpenHarmony SDK, no DevEco required)
-$root = 'c:\Users\shz73\Documents\Qoder\2026-08-09\chat-1\device-management-system'
-$env:Path = 'C:\Program Files\nodejs;' + $env:Path
-$ets = "$root\harmonyos-tools\sdk\windows\ets\ets\build-tools\ets-loader"
-$proj = "$root\harmony-app\entry\src\main"
-$build = "$root\harmony-app\build"
-if (Test-Path "$build\cache") { Remove-Item -Recurse -Force "$build\cache" }
-New-Item -ItemType Directory -Force -Path "$build", "$build\intermediates", "$build\cache" | Out-Null
-
-Write-Host '=== webpack ets compile ==='
-$env:compileMode = 'esmodule'
-$env:buildMode = 'debug'
-$env:compilerType = 'ark'
-$env:cachePath = "$build\cache"
-$env:aceBuildJson = "$root\harmony-app\build.json"
-$env:aceModuleJsonPath = "$proj\module.json"
-$env:aceProfilePath = "$proj\resources\base\profile"
-$env:aceModuleRoot = "$proj\ets"
-$env:aceModuleBuild = "$build\intermediates"
-Push-Location $ets
-& 'C:\Program Files\nodejs\node.exe' "$ets\node_modules\webpack\bin\webpack.js" --config "$ets\webpack.debug.config.js" --env buildMode=debug --env compilerType=ark --env compileMode=esmodule --env aceModuleRoot=$proj\ets --env aceModuleBuild="$build\intermediates" --env aceModuleJsonPath="$proj\module.json" --env aceBuildJson="$root\harmony-app\build.json" --env aceProfilePath="$proj\resources\base\profile" --env cachePath="$build\cache"
-Write-Host "webpack exit: $LASTEXITCODE"
-Pop-Location
-if ($LASTEXITCODE -ne 0) { Write-Host 'BUILD FAILED at webpack step'; exit 1 }
-
-$tc = "$root\harmonyos-tools\sdk\windows\toolchains\toolchains"
-$lib = "$tc\lib"
-$jdk = "$root\android-tools\jdk\jdk-17.0.20+8\bin"
-$bundle = 'com.yingshi.devicemgr'
-$finalHap = "$root\harmony-app\影视星河设备管理系统.hap"
-
-Write-Host '=== restool compile resources ==='
-if (Test-Path "$build\res") { Remove-Item -Recurse -Force "$build\res" }
-New-Item -ItemType Directory -Force -Path "$build\res" | Out-Null
-& "$tc\restool.exe" -i $proj -o "$build\res" -p entry -r "$build\res\ResourceTable.txt"
-Write-Host "restool exit: $LASTEXITCODE"
-if ($LASTEXITCODE -ne 0) { exit 1 }
-
-Write-Host '=== assemble hap stage ==='
-$stage = "$build\hap-stage"
-if (Test-Path $stage) { Remove-Item -Recurse -Force $stage }
-New-Item -ItemType Directory -Force -Path $stage | Out-Null
-Copy-Item "$build\intermediates\modules.abc" "$stage\modules.abc"
-$mj = Get-Content "$build\res\module.json" -Raw | ConvertFrom-Json
-$mj.PSObject.Properties.Remove('app')
-[System.IO.File]::WriteAllText("$stage\module.json", ($mj | ConvertTo-Json -Depth 32), [System.Text.UTF8Encoding]::new($false))
-Copy-Item "$build\res\resources.index" "$stage\resources.index"
-Copy-Item "$build\res\resources" "$stage\resources" -Recurse
-
-$packInfo = @{
-  summary = @{
-    app = @{
-      bundleName = $bundle
-      debug = $true
-      icon = '$media:icon'
-      label = '$string:app_name'
-      version = @{ code = 1000000; name = '1.0.0' }
-      minAPIVersion = 9
-      targetAPIVersion = 12
-    }
-    modules = @(@{
-      name = 'entry'
-      type = 'entry'
-      deviceType = @('phone', 'tablet')
-      abilities = @(@{ name = 'EntryAbility'; label = '$string:EntryAbility_label'; visible = $true })
-      distro = @{ moduleType = 'entry'; installationFree = $false; deliveryWithInstall = $true; moduleName = 'entry' }
-    })
-  }
-  packages = @(@{ deviceType = @('phone', 'tablet'); moduleType = 'entry'; deliveryWithInstall = $true; name = 'entry' })
-}
-[System.IO.File]::WriteAllText("$stage\pack.info", ($packInfo | ConvertTo-Json -Depth 32), [System.Text.UTF8Encoding]::new($false))
-
-Write-Host '=== zip unsigned hap ==='
-Push-Location $stage
-& "$jdk\jar.exe" -cfM "$build\unsigned.hap" modules.abc module.json pack.info resources.index resources
-Write-Host "jar exit: $LASTEXITCODE"
-Pop-Location
-if ($LASTEXITCODE -ne 0) { exit 1 }
-
-Write-Host '=== prepare debug profile ==='
-$prof = Get-Content "$lib\UnsgnedDebugProfileTemplate.json" -Raw | ConvertFrom-Json
-$prof.uuid = [guid]::NewGuid().ToString()
-$prof.validity.'not-after' = 1893456000
-$prof.'bundle-info'.'bundle-name' = $bundle
-[System.IO.File]::WriteAllText("$build\unsigned-profile.json", ($prof | ConvertTo-Json -Depth 32), [System.Text.UTF8Encoding]::new($false))
-& "$jdk\keytool.exe" -exportcert -rfc -keystore "$lib\OpenHarmony.p12" -storetype PKCS12 -storepass 123456 -alias 'openharmony application ca' -file "$build\app-ca.cer"
-& "$jdk\keytool.exe" -exportcert -rfc -keystore "$lib\OpenHarmony.p12" -storetype PKCS12 -storepass 123456 -alias 'openharmony application root ca' -file "$build\app-root.cer"
-$chain = $prof.'bundle-info'.'development-certificate' + (Get-Content "$build\app-ca.cer" -Raw) + (Get-Content "$build\app-root.cer" -Raw)
-[System.IO.File]::WriteAllText("$build\app-cert.pem", $chain, [System.Text.UTF8Encoding]::new($false))
-
-Write-Host '=== sign profile ==='
-& "$jdk\java.exe" -jar "$lib\hap-sign-tool.jar" sign-profile -mode localSign -keyAlias 'openharmony application profile debug' -keyPwd 123456 -profileCertFile "$lib\OpenHarmonyProfileDebug.pem" -inFile "$build\unsigned-profile.json" -signAlg SHA256withECDSA -keystoreFile "$lib\OpenHarmony.p12" -keystorePwd 123456 -outFile "$build\debug-profile.p7b"
-Write-Host "sign-profile exit: $LASTEXITCODE"
-if ($LASTEXITCODE -ne 0) { exit 1 }
-
-Write-Host '=== sign hap ==='
-& "$jdk\java.exe" -jar "$lib\hap-sign-tool.jar" sign-app -mode localSign -keyAlias 'openharmony application release' -keyPwd 123456 -appCertFile "$build\app-cert.pem" -profileFile "$build\debug-profile.p7b" -inFile "$build\unsigned.hap" -signAlg SHA256withECDSA -keystoreFile "$lib\OpenHarmony.p12" -keystorePwd 123456 -outFile $finalHap -compatibleVersion 9 -inForm zip
-Write-Host "sign-app exit: $LASTEXITCODE"
-if ($LASTEXITCODE -ne 0) { exit 1 }
-
-Write-Host '=== verify ==='
-& "$jdk\java.exe" -jar "$lib\hap-sign-tool.jar" verify-app -inFile $finalHap -outCertChain "$build\verify-certchain.cer" -outProfile "$build\verify-profile.p7b"
-Write-Host "verify exit: $LASTEXITCODE"
-Write-Host 'DONE'
-Get-Item $finalHap | Select-Object FullName, Length

client/src/App.jsx

@@ -26,7 +26,7 @@ import AccountManagement from './pages/AccountManagement'
 import Messages from './pages/Messages'
 import About from './pages/About'
 import Guide from './pages/Guide'
-import Download from './pages/Download'
+import PushService from './components/PushService'
 
 const { Header, Sider, Content } = Layout
 
@@ -127,7 +127,8 @@ function App() {
     { key: 'personnel', icon: <TeamOutlined />, label: '人员管理' },
     ...(user?.role === 'admin' ? [{ key: 'accounts', icon: <UserSwitchOutlined />, label: '账户管理' }] : []),
     { key: 'notifications', icon: <BellOutlined />, label: '通知管理' },
-    { key: 'download', icon: <InfoCircleOutlined />, label: '软件下载' }
+    { key: 'about', icon: <InfoCircleOutlined />, label: '软件简介' },
+    { key: 'guide', icon: <BookOutlined />, label: '使用说明' }
   ]
 
   // 移动端底部导航（5个核心入口）
@@ -149,14 +150,13 @@ function App() {
       case 'accounts': return user?.role === 'admin' ? <AccountManagement user={user} /> : <Dashboard onNavigate={setCurrentPage} />
       case 'notifications': return <NotificationManagement user={user} />
       case 'messages': return <Messages user={user} />
-      case 'download': return <Download />
       default: return <Dashboard onNavigate={setCurrentPage} />
     }
   }
 
   const getPageTitle = () => {
     const titles = {
-      dashboard: '系统首页', about: '软件简介', guide: '使用说明',download: '软件下载',
+      dashboard: '系统首页', about: '软件简介', guide: '使用说明',
       devices: '设备管理', personnel: '人员管理', accounts: '账户管理',
       notifications: '通知管理', messages: '消息对话'
     }
@@ -304,6 +304,7 @@ function App() {
         </nav>
 
         {pwdModal}
+        <PushService user={user} />
       </Layout>
     )
   }
@@ -365,6 +366,7 @@ function App() {
       </Layout>
 
       {pwdModal}
+      <PushService user={user} />
     </Layout>
   )
 }

client/src/components/PushService.jsx

@@ -0,0 +1,73 @@
+import { useEffect, useRef } from 'react'
+import { notification } from 'antd'
+import axios from 'axios'
+
+// 分发到原生推送通道：
+// 1. 安卓 APK 的 JS 桥（window.AndroidNotify.push）
+// 2. 鸿蒙 HAP 的 javaScriptProxy 桥（window.HmosNotify.push）
+// 3. HTML5 Notification（Electron 桌面端与浏览器直接支持）
+function nativeNotify(title, body) {
+  try {
+    if (window.AndroidNotify && typeof window.AndroidNotify.push === 'function') {
+      window.AndroidNotify.push(title, body)
+      return
+    }
+    if (window.HmosNotify && typeof window.HmosNotify.push === 'function') {
+      window.HmosNotify.push(title, body)
+      return
+    }
+    if ('Notification' in window && Notification.permission === 'granted') {
+      new Notification(title, { body })
+    }
+  } catch (e) { /* 原生通道失败时已有应用内通知兜底 */ }
+}
+
+// 全局推送服务：登录后挂载，轮询后端推送事件（聊天消息/设备报修/维修完成）
+function PushService({ user }) {
+  const cursorRef = useRef(0)
+  const firstRef = useRef(true)
+
+  useEffect(() => {
+    if (!user) return
+    // 游标按用户隔离存储，切换账号不串推送
+    const key = 'push_cursor_' + user.id
+    cursorRef.current = parseInt(localStorage.getItem(key) || '0')
+    firstRef.current = true
+
+    // HTML5 通知权限（桌面 Electron/浏览器有效；移动端 WebView 会静默忽略）
+    if ('Notification' in window && Notification.permission === 'default') {
+      try { Notification.requestPermission() } catch (e) { /* ignore */ }
+    }
+
+    const poll = async () => {
+      try {
+        const res = await axios.get('/api/push/events', { params: { after: cursorRef.current } })
+        if (!res.data.success || !res.data.data.length) return
+        const events = res.data.data
+        const isFirstSync = firstRef.current && cursorRef.current === 0
+        firstRef.current = false
+        for (const ev of events) {
+          cursorRef.current = ev.id
+          // 首次使用只同步游标不弹通知，避免历史事件刷屏
+          if (isFirstSync) continue
+          notification.open({
+            message: ev.title,
+            description: ev.body,
+            placement: 'bottomRight',
+            duration: 5
+          })
+          nativeNotify(ev.title, ev.body)
+        }
+        localStorage.setItem(key, String(cursorRef.current))
+      } catch (e) { /* 静默 */ }
+    }
+
+    poll()
+    const timer = setInterval(poll, 8000)
+    return () => clearInterval(timer)
+  }, [user?.id])
+
+  return null
+}
+
+export default PushService

client/src/pages/Messages.jsx

@@ -1,10 +1,29 @@
 import React, { useState, useEffect, useRef } from 'react'
-import { Card, Button, Input, List, Badge, Modal, Form, Select, Tabs, Avatar, Empty, message, Popconfirm, Space, Tag, Tooltip } from 'antd'
+import { Card, Button, Input, List, Badge, Modal, Form, Select, Tabs, Avatar, Empty, message, Popconfirm, Space, Tag, Tooltip, Popover, Image } from 'antd'
-import { PlusOutlined, SendOutlined, TeamOutlined, UserOutlined, ArrowLeftOutlined, DeleteOutlined, SettingOutlined, UserDeleteOutlined } from '@ant-design/icons'
+import { PlusOutlined, SendOutlined, TeamOutlined, UserOutlined, ArrowLeftOutlined, DeleteOutlined, SettingOutlined, UserDeleteOutlined, CheckCircleFilled, ClockCircleOutlined, SmileOutlined, PictureOutlined, VideoCameraOutlined, PaperClipOutlined, FileOutlined, DownloadOutlined } from '@ant-design/icons'
 import axios from 'axios'
 
 const { TextArea } = Input
 
+// 常用表情面板
+const EMOJIS = ['😀', '😄', '😂', '🤣', '😊', '😍', '😘', '😎', '🤔', '😅', '😭', '😡', '👍', '👎', '👏', '🙏', '🤝', '💪', '❤️', '💔', '🎉', '🎂', '🌹', '☕', '🍺', '⚽', '🌙', '☀️', '⛅', '🌈', '🔥', '✨', '💯', '✅', '❌', '⚠️', '📷', '🎬', '🎤', '📱', '💻', '🚗', '✈️', '⏰', '📅', '💰', '🎁', '🏆']
+
+// 文件大小格式化
+function formatSize(size) {
+  if (!size && size !== 0) return ''
+  if (size < 1024) return size + ' B'
+  if (size < 1024 * 1024) return (size / 1024).toFixed(1) + ' KB'
+  if (size < 1024 * 1024 * 1024) return (size / 1024 / 1024).toFixed(1) + ' MB'
+  return (size / 1024 / 1024 / 1024).toFixed(2) + ' GB'
+}
+
+// 附件访问地址：拼上 baseURL 与 token（img/video/下载链接无法携带 Authorization 头）
+function fileSrc(url) {
+  if (!url) return ''
+  const token = localStorage.getItem('token') || ''
+  return axios.getUri({ url }) + (url.includes('?') ? '&' : '?') + 'token=' + encodeURIComponent(token)
+}
+
 // 移动端检测
 function useIsMobile() {
   const [isMobile, setIsMobile] = useState(window.innerWidth < 768)
@@ -28,21 +47,28 @@ function Messages({ user }) {
   const [membersVisible, setMembersVisible] = useState(false)
   const [createForm] = Form.useForm()
   const [creating, setCreating] = useState(false)
+  const [uploading, setUploading] = useState(false)
+  const imgInputRef = useRef(null)
+  const videoInputRef = useRef(null)
+  const fileInputRef = useRef(null)
   const bottomRef = useRef(null)
   const activeConvRef = useRef(null)
   const lastMsgIdRef = useRef(0)
+  const readStatusRef = useRef({})
 
   // 打开会话时同步到 ref（供轮询闭包使用）
   const openConversation = (conv) => {
     setActiveConv(conv)
     activeConvRef.current = conv
     lastMsgIdRef.current = 0
+    readStatusRef.current = {}
     setMessages([])
   }
 
   const closeConversation = () => {
     setActiveConv(null)
     activeConvRef.current = null
+    readStatusRef.current = {}
     setMessages([])
   }
 
@@ -76,13 +102,26 @@ function Messages({ user }) {
     } catch (err) { /* 静默 */ }
   }
 
-  // 会话列表 5 秒轮询；打开的会话 3 秒轮询消息
+  // 拉取当前打开会话的已读回执，合并进消息列表
+  const fetchReadStatus = async (conv) => {
+    if (!conv) return
+    try {
+      const res = await axios.get(`/api/chat/conversations/${conv.id}/read-status`)
+      if (res.data.success) {
+        readStatusRef.current = res.data.data
+        setMessages(prev => prev.map(m => res.data.data[m.id] ? { ...m, read_status: res.data.data[m.id] } : m))
+      }
+    } catch (err) { /* 静默 */ }
+  }
+
+  // 会话列表 5 秒轮询；打开的会话 3 秒轮询消息，4 秒轮询已读回执
   useEffect(() => {
     fetchConversations()
     fetchUsers()
     const convTimer = setInterval(fetchConversations, 5000)
     const msgTimer = setInterval(() => fetchMessages(activeConvRef.current), 3000)
-    return () => { clearInterval(convTimer); clearInterval(msgTimer) }
+    const readTimer = setInterval(() => fetchReadStatus(activeConvRef.current), 4000)
+    return () => { clearInterval(convTimer); clearInterval(msgTimer); clearInterval(readTimer) }
   }, [])
 
   // 新消息自动滚动到底部
@@ -108,6 +147,35 @@ function Messages({ user }) {
     }
   }
 
+  // 选择并发送图片/视频/文件：先上传拿 fileId，再发媒体消息
+  const handlePickMedia = async (type, file) => {
+    if (!file || !activeConv || uploading) return
+    if (file.size > 100 * 1024 * 1024) {
+      message.error('文件超过 100MB 限制')
+      return
+    }
+    setUploading(true)
+    const hide = message.loading(type === 'image' ? '图片上传中…' : type === 'video' ? '视频上传中…' : '文件上传中…', 0)
+    try {
+      const fd = new FormData()
+      fd.append('file', file)
+      const up = await axios.post('/api/chat/upload', fd)
+      if (!up.data.success) throw new Error(up.data.message)
+      const res = await axios.post(`/api/chat/conversations/${activeConv.id}/messages`, {
+        type, fileId: up.data.data.fileId, content: up.data.data.fileName
+      })
+      if (res.data.success) {
+        await fetchMessages(activeConvRef.current)
+        fetchConversations()
+      }
+    } catch (err) {
+      message.error(err.response?.data?.message || err.message || '发送失败')
+    } finally {
+      hide()
+      setUploading(false)
+    }
+  }
+
   const handleCreate = async (values) => {
     setCreating(true)
     try {
@@ -270,17 +338,95 @@ function Messages({ user }) {
         {messages.length === 0 && <Empty description="还没有消息，发送第一条吧" image={Empty.PRESENTED_IMAGE_SIMPLE} style={{ marginTop: 40 }} />}
         {messages.map(m => {
           const mine = m.sender_id === user?.id
+          const rs = m.read_status
+          const allRead = rs && rs.total_others > 0 && rs.read_count >= rs.total_others
+          let readEl = null
+          if (mine && rs && rs.total_others > 0) {
+            if (activeConv.type === 'group' && !allRead) {
+              const names = rs.unread_users.map(u => u.name).slice(0, 5).join('、')
+              const extra = rs.unread_users.length > 5 ? ` 等${rs.unread_users.length}人` : ''
+              readEl = (
+                <Tooltip title={`未读：${names}${extra}`}>
+                  <span className="chat-msg-status chat-msg-unread">
+                    <ClockCircleOutlined /> 未读（{rs.read_count}/{rs.total_others}人已读）
+                  </span>
+                </Tooltip>
+              )
+            } else {
+              readEl = allRead
+                ? <span className="chat-msg-status chat-msg-read"><CheckCircleFilled /> 已读</span>
+                : <span className="chat-msg-status chat-msg-unread"><ClockCircleOutlined /> 未读</span>
+            }
+          }
+          // 按消息类型渲染内容：图片/视频/文件/文本
+          let body
+          if (m.msg_type === 'image' && m.file_url) {
+            body = (
+              <div className="chat-bubble chat-bubble-media">
+                <Image src={fileSrc(m.file_url)} style={{ maxWidth: 240, maxHeight: 240, borderRadius: 6, display: 'block' }} />
+              </div>
+            )
+          } else if (m.msg_type === 'video' && m.file_url) {
+            body = (
+              <div className="chat-bubble chat-bubble-media">
+                <video src={fileSrc(m.file_url)} controls preload="metadata" style={{ maxWidth: 320, maxHeight: 240, borderRadius: 6, display: 'block' }} />
+              </div>
+            )
+          } else if (m.msg_type === 'file' && m.file_url) {
+            body = (
+              <div className="chat-bubble chat-bubble-media chat-file-card">
+                <FileOutlined style={{ fontSize: 28, color: '#7c3aed' }} />
+                <div className="chat-file-info">
+                  <div className="chat-file-name">{m.file_name || m.content}</div>
+                  <div className="chat-file-size">{formatSize(m.file_size)}</div>
+                </div>
+                <a href={fileSrc(m.file_url)} download={m.file_name} className="chat-file-download" title="下载">
+                  <DownloadOutlined />
+                </a>
+              </div>
+            )
+          } else {
+            body = <div className={`chat-bubble ${mine ? 'chat-bubble-mine' : ''}`}>{m.content}</div>
+          }
           return (
             <div key={m.id} className={`chat-msg ${mine ? 'chat-msg-mine' : ''}`}>
               {!mine && <div className="chat-msg-sender">{m.sender_name}</div>}
-              <div className={`chat-bubble ${mine ? 'chat-bubble-mine' : ''}`}>{m.content}</div>
+              {body}
-              <div className="chat-msg-time">{m.created_at?.slice(5, 16)}</div>
+              <div className="chat-msg-time">
+                {m.created_at?.slice(5, 16)}
+                {readEl}
+              </div>
             </div>
           )
         })}
         <div ref={bottomRef} />
       </div>
       <div className="chat-input">
+        <div className="chat-toolbar">
+          <Popover
+            trigger="click"
+            placement="topLeft"
+            content={
+              <div className="emoji-panel">
+                {EMOJIS.map(e => (
+                  <span key={e} className="emoji-item" onClick={() => setInputValue(v => v + e)}>{e}</span>
+                ))}
+              </div>
+            }
+          >
+            <Button type="text" size="small" icon={<SmileOutlined />} title="表情" />
+          </Popover>
+          <Button type="text" size="small" icon={<PictureOutlined />} title="发送图片" onClick={() => imgInputRef.current?.click()} />
+          <Button type="text" size="small" icon={<VideoCameraOutlined />} title="发送视频" onClick={() => videoInputRef.current?.click()} />
+          <Button type="text" size="small" icon={<PaperClipOutlined />} title="发送文件" onClick={() => fileInputRef.current?.click()} />
+        </div>
+        <input ref={imgInputRef} type="file" accept="image/*" style={{ display: 'none' }}
+          onChange={(e) => { handlePickMedia('image', e.target.files?.[0]); e.target.value = '' }} />
+        <input ref={videoInputRef} type="file" accept="video/*" style={{ display: 'none' }}
+          onChange={(e) => { handlePickMedia('video', e.target.files?.[0]); e.target.value = '' }} />
+        <input ref={fileInputRef} type="file" style={{ display: 'none' }}
+          onChange={(e) => { handlePickMedia('file', e.target.files?.[0]); e.target.value = '' }} />
+        <div className="chat-input-row">
           <TextArea
             value={inputValue}
             onChange={(e) => setInputValue(e.target.value)}
@@ -289,7 +435,8 @@ function Messages({ user }) {
             autoSize={{ minRows: 1, maxRows: 4 }}
             style={{ flex: 1 }}
           />
-        <Button type="primary" icon={<SendOutlined />} loading={sending} onClick={handleSend}>发送</Button>
+          <Button type="primary" icon={<SendOutlined />} loading={sending || uploading} onClick={handleSend}>发送</Button>
+        </div>
       </div>
     </div>
   ) : (
@@ -313,6 +460,7 @@ function Messages({ user }) {
         <Form.Item name="tab" noStyle>
           <Tabs
             centered
+            destroyInactiveTabPane
             items={[
               {
                 key: 'direct',

database.js

@@ -171,6 +171,41 @@ function initDatabase() {
     )
   `);
 
+  // 聊天附件表（上传的图片/视频/文件）
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS chat_files (
+      id TEXT PRIMARY KEY,
+      uploader_id TEXT NOT NULL,
+      file_name TEXT NOT NULL,
+      stored_name TEXT NOT NULL,
+      file_size INTEGER DEFAULT 0,
+      file_mime TEXT DEFAULT '',
+      created_at TEXT DEFAULT (datetime('now', 'localtime'))
+    )
+  `);
+
+  // 迁移：消息表补充媒体类型列（兼容旧库）
+  const msgCols = db.prepare('PRAGMA table_info(messages)').all().map(c => c.name);
+  if (!msgCols.includes('msg_type')) {
+    db.exec("ALTER TABLE messages ADD COLUMN msg_type TEXT DEFAULT 'text'");
+  }
+  if (!msgCols.includes('file_id')) {
+    db.exec("ALTER TABLE messages ADD COLUMN file_id TEXT DEFAULT ''");
+  }
+
+  // 推送事件表（聊天消息/设备报修/维修完成等，客户端轮询拉取）
+  db.exec(`
+    CREATE TABLE IF NOT EXISTS push_events (
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
+      user_id TEXT NOT NULL,
+      kind TEXT NOT NULL,
+      title TEXT NOT NULL,
+      body TEXT DEFAULT '',
+      created_at TEXT DEFAULT (datetime('now', 'localtime'))
+    )
+  `);
+  db.exec('CREATE INDEX IF NOT EXISTS idx_push_events_user ON push_events (user_id, id)');
+
   // 插入示例数据
   const deviceCount = db.prepare('SELECT COUNT(*) as count FROM devices').get();
   if (deviceCount.count === 0) {

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "device-management-system",
-  "version": "1.0.0",
+  "version": "2.2.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "device-management-system",
-      "version": "1.0.0",
+      "version": "2.2.0",
       "dependencies": {
         "better-sqlite3": "^12.2.0",
         "cors": "^2.8.5",
@@ -3306,9 +3306,9 @@
       "license": "MIT"
     },
     "node_modules/multer": {
-      "version": "1.4.5-lts.2",
+      "version": "1.4.5-lts.1",
-      "resolved": "https://registry.npmjs.org/multer/-/multer-1.4.5-lts.2.tgz",
+      "resolved": "https://registry.npmjs.org/multer/-/multer-1.4.5-lts.1.tgz",
-      "integrity": "sha512-VzGiVigcG9zUAoCNU+xShztrlr1auZOlurXynNvO9GiWD1/mTBbUljOKY+qMeazBqXgRnjzeEgJI/wyjJUHg9A==",
+      "integrity": "sha512-ywPWvcDMeH+z9gQq5qYHCCy+ethsk4goepZ45GLD63fOu0YcNecQxi64nDs3qluZB+murG3/D4dJ7+dGctcCQQ==",
       "deprecated": "Multer 1.x is impacted by a number of vulnerabilities, which have been patched in 2.x. You should upgrade to the latest 2.x version.",
       "license": "MIT",
       "dependencies": {

server.js

@@ -1,12 +1,37 @@
 const express = require('express');
 const cors = require('cors');
 const path = require('path');
+const fs = require('fs');
+const multer = require('multer');
 const { v4: uuidv4 } = require('uuid');
 const db = require('./database');
 
 const app = express();
 const PORT = process.env.PORT || 3001;
 
+// 聊天附件存储目录
+const uploadsDir = path.join(__dirname, 'uploads');
+if (!fs.existsSync(uploadsDir)) {
+  fs.mkdirSync(uploadsDir, { recursive: true });
+}
+
+// multer 磁盘存储：文件名用 uuid + 安全扩展名，单文件上限 100MB
+const MIME_EXT = {
+  'image/jpeg': '.jpg', 'image/png': '.png', 'image/gif': '.gif', 'image/webp': '.webp', 'image/bmp': '.bmp',
+  'video/mp4': '.mp4', 'video/webm': '.webm', 'video/quicktime': '.mov', 'video/x-msvideo': '.avi', 'video/x-matroska': '.mkv'
+};
+const upload = multer({
+  storage: multer.diskStorage({
+    destination: (req, file, cb) => cb(null, uploadsDir),
+    filename: (req, file, cb) => {
+      const rawExt = path.extname(file.originalname || '').toLowerCase();
+      const ext = MIME_EXT[file.mimetype] || (/^\.[a-z0-9]{1,8}$/.test(rawExt) ? rawExt : '.bin');
+      cb(null, uuidv4() + ext);
+    }
+  }),
+  limits: { fileSize: 100 * 1024 * 1024 }
+});
+
 // 内存会话存储
 const sessions = new Map();
 // 会话最近活跃时间（token -> 时间戳），用于判断在线状态
@@ -50,7 +75,8 @@ function authMiddleware(req, res, next) {
   if (publicPaths.some(path => req.path.startsWith(path))) {
     return next();
   }
-  const token = req.headers.authorization?.replace('Bearer ', '');
+  // 优先取请求头 token；img/video/下载链接无法携带 Authorization 头，允许查询参数回退
+  const token = req.headers.authorization?.replace('Bearer ', '') || req.query.token;
   if (!token || !sessions.has(token)) {
     return res.status(401).json({ success: false, message: '未登录或登录已过期' });
   }
@@ -87,6 +113,52 @@ function logDeviceAction(deviceId, deviceName, action, detail, operator) {
   `).run(uuidv4(), deviceId, deviceName || '', action, detail || '', operator || '');
 }
 
+// ==================== 推送事件（客户端轮询拉取的原生推送源） ====================
+
+// 定期清理 7 天前的推送事件
+function cleanPushEvents() {
+  db.prepare("DELETE FROM push_events WHERE created_at < datetime('now','localtime','-7 day')").run();
+}
+cleanPushEvents();
+setInterval(cleanPushEvents, 6 * 60 * 60 * 1000);
+
+// 向指定用户写入一条推送事件
+function pushTo(userId, kind, title, body) {
+  if (!userId) return;
+  db.prepare('INSERT INTO push_events (user_id, kind, title, body) VALUES (?, ?, ?, ?)')
+    .run(userId, kind, String(title || ''), String(body || '').slice(0, 200));
+}
+
+// 向多个用户推送（自动去重、跳过发送者）
+function pushToMany(userIds, kind, title, body, excludeId) {
+  const seen = new Set();
+  for (const uid of userIds) {
+    if (!uid || uid === excludeId || seen.has(uid)) continue;
+    seen.add(uid);
+    pushTo(uid, kind, title, body);
+  }
+}
+
+// 向指定角色的全部用户推送
+function pushToRole(role, kind, title, body, excludeId) {
+  const rows = db.prepare('SELECT id FROM users WHERE role = ?').all(role);
+  pushToMany(rows.map(r => r.id), kind, title, body, excludeId);
+}
+
+// 向全部用户推送
+function pushToAll(kind, title, body, excludeId) {
+  const rows = db.prepare('SELECT id FROM users').all();
+  pushToMany(rows.map(r => r.id), kind, title, body, excludeId);
+}
+
+// 客户端拉取自己的新推送事件（after 游标为上次拉到的最大 id）
+app.get('/api/push/events', (req, res) => {
+  const after = parseInt(req.query.after) || 0;
+  const rows = db.prepare('SELECT * FROM push_events WHERE user_id = ? AND id > ? ORDER BY id ASC LIMIT 50')
+    .all(req.user.id, after);
+  res.json({ success: true, data: rows });
+});
+
 // 写入维修记录
 function addMaintenanceRecord(deviceId, deviceName, type, remark, operator) {
   db.prepare(`
@@ -236,6 +308,8 @@ app.patch('/api/devices/:id/repair', (req, res) => {
   `).run(req.params.id);
   addMaintenanceRecord(req.params.id, device.name, '报修', remark || '', getOperator(req));
   logDeviceAction(req.params.id, device.name, '报修', remark || '设备已标记为维修中', getOperator(req));
+  // 推送给全部管理员处理
+  pushToRole('admin', 'repair_request', '设备报修', `${getOperator(req)} 报修：${device.name}${remark ? '（' + remark + '）' : ''}`, req.user.id);
   const updated = db.prepare('SELECT * FROM devices WHERE id = ?').get(req.params.id);
   res.json({ success: true, data: updated, message: '报修成功，设备已标记为维修中' });
 });
@@ -262,6 +336,8 @@ app.patch('/api/devices/:id/status', requireAdmin, (req, res) => {
   }
   if (device.status === '维修中' && status === '正常') {
     addMaintenanceRecord(req.params.id, device.name, '维修完成', '维修完成，状态恢复正常', getOperator(req));
+    // 维修完成推送给全部用户
+    pushToAll('repair_done', '设备维修完成', `设备「${device.name}」已维修好，状态恢复正常`, req.user.id);
   }
   logDeviceAction(req.params.id, device.name, '修改状态', `${device.status} → ${status}`, getOperator(req));
   const updated = db.prepare('SELECT * FROM devices WHERE id = ?').get(req.params.id);
@@ -705,6 +781,65 @@ function getUserDisplayName(userId) {
   return u ? (u.display_name || u.username) : '';
 }
 
+// 媒体消息在会话列表的预览文案
+function messagePreview(m) {
+  if (m.msg_type === 'image') return '[图片]';
+  if (m.msg_type === 'video') return '[视频]';
+  if (m.msg_type === 'file') return '[文件] ' + (m.content || '');
+  return m.content;
+}
+
+// 上传聊天附件（图片/视频/文件），返回 fileId 供发送消息时引用
+app.post('/api/chat/upload', upload.single('file'), (req, res) => {
+  if (!req.file) {
+    return res.status(400).json({ success: false, message: '未接收到文件' });
+  }
+  const id = uuidv4();
+  db.prepare('INSERT INTO chat_files (id, uploader_id, file_name, stored_name, file_size, file_mime) VALUES (?, ?, ?, ?, ?, ?)')
+    .run(id, req.user.id, req.file.originalname, req.file.filename, req.file.size, req.file.mimetype || '');
+  res.json({
+    success: true,
+    data: { fileId: id, fileName: req.file.originalname, fileSize: req.file.size, fileMime: req.file.mimetype || '' }
+  });
+});
+
+// multer 错误处理（超大文件等）
+app.use('/api/chat/upload', (err, req, res, next) => {
+  if (err) {
+    const msg = err.code === 'LIMIT_FILE_SIZE' ? '文件超过 100MB 限制' : '上传失败';
+    return res.status(400).json({ success: false, message: msg });
+  }
+  next();
+});
+
+// 下载/预览聊天附件：仅上传者可访问，或所在会话的成员可访问
+app.get('/api/chat/files/:id', (req, res) => {
+  const file = db.prepare('SELECT * FROM chat_files WHERE id = ?').get(req.params.id);
+  if (!file) {
+    return res.status(404).json({ success: false, message: '文件不存在' });
+  }
+  if (file.uploader_id !== req.user.id) {
+    const inConv = db.prepare(`
+      SELECT 1 FROM conversation_members m
+      WHERE m.user_id = ? AND EXISTS (
+        SELECT 1 FROM messages msg WHERE msg.file_id = ? AND msg.conversation_id = m.conversation_id
+      )
+    `).get(req.user.id, file.id);
+    if (!inConv) {
+      return res.status(403).json({ success: false, message: '无权访问该文件' });
+    }
+  }
+  const filePath = path.join(uploadsDir, file.stored_name);
+  if (!fs.existsSync(filePath)) {
+    return res.status(404).json({ success: false, message: '文件已丢失' });
+  }
+  const inline = (file.file_mime || '').startsWith('image/') || (file.file_mime || '').startsWith('video/');
+  const encoded = encodeURIComponent(file.file_name);
+  res.setHeader('Content-Type', file.file_mime || 'application/octet-stream');
+  res.setHeader('Content-Disposition', `${inline ? 'inline' : 'attachment'}; filename*=UTF-8''${encoded}`);
+  fs.createReadStream(filePath).pipe(res);
+});
+
 // 全部用户简表（选择聊天对象/建群成员，含在线状态）
 app.get('/api/chat/users', (req, res) => {
   const rows = db.prepare('SELECT id, username, display_name, role FROM users ORDER BY created_at ASC').all();
@@ -737,7 +872,7 @@ app.get('/api/chat/conversations', (req, res) => {
       creator_id: c.creator_id,
       member_count: members.length,
       members,
-      last_message: last ? { content: last.content, created_at: last.created_at, sender_name: getUserDisplayName(last.sender_id) } : null,
+      last_message: last ? { content: messagePreview(last), created_at: last.created_at, sender_name: getUserDisplayName(last.sender_id) } : null,
       unread
     };
   });
@@ -805,6 +940,12 @@ app.get('/api/chat/conversations/:id/messages', (req, res) => {
   if (!conv || !isConversationMember(req.params.id, req.user.id)) {
     return res.status(404).json({ success: false, message: '会话不存在' });
   }
+  // 标记已读到会话最新一条（先于返回，保证本次返回的消息自带已读回执）
+  const latest = db.prepare('SELECT MAX(id) as maxId FROM messages WHERE conversation_id = ?').get(req.params.id);
+  if (latest && latest.maxId) {
+    db.prepare('UPDATE conversation_members SET last_read_message_id = MAX(last_read_message_id, ?) WHERE conversation_id = ? AND user_id = ?')
+      .run(latest.maxId, req.params.id, req.user.id);
+  }
   const after = parseInt(req.query.after) || 0;
   const limit = Math.min(parseInt(req.query.limit) || 100, 200);
   let rows;
@@ -813,40 +954,102 @@ app.get('/api/chat/conversations/:id/messages', (req, res) => {
   } else {
     rows = db.prepare('SELECT * FROM messages WHERE conversation_id = ? ORDER BY id DESC LIMIT ?').all(req.params.id, limit).reverse();
   }
+  const readMap = buildReadStatusMap(req.params.id, req.user.id);
+  const fileCache = {};
   const senderCache = {};
   const data = rows.map(m => {
     if (!senderCache[m.sender_id]) senderCache[m.sender_id] = getUserDisplayName(m.sender_id);
-    return { ...m, sender_name: senderCache[m.sender_id] };
+    const item = { ...m, sender_name: senderCache[m.sender_id], read_status: readMap[m.id] || null };
-  });
+    if (m.file_id) {
-  // 标记已读到最新一条
+      if (!fileCache[m.file_id]) fileCache[m.file_id] = db.prepare('SELECT * FROM chat_files WHERE id = ?').get(m.file_id);
-  const maxId = data.length ? data[data.length - 1].id : after;
+      const f = fileCache[m.file_id];
-  if (maxId > 0) {
+      if (f) {
-    db.prepare('UPDATE conversation_members SET last_read_message_id = MAX(last_read_message_id, ?) WHERE conversation_id = ? AND user_id = ?')
+        item.file_name = f.file_name;
-      .run(maxId, req.params.id, req.user.id);
+        item.file_size = f.file_size;
+        item.file_mime = f.file_mime;
+        item.file_url = `/api/chat/files/${f.id}`;
       }
+    }
+    return item;
+  });
   res.json({ success: true, data });
 });
 
-// 发送消息
+// 计算会话内各消息的已读回执：read_count=已读的其他成员数，total_others=其他成员总数，unread_users=未读成员名单
-app.post('/api/chat/conversations/:id/messages', (req, res) => {
+function buildReadStatusMap(convId, meId) {
-  const content = String(req.body.content || '').trim();
+  const members = db.prepare('SELECT user_id, last_read_message_id FROM conversation_members WHERE conversation_id = ?').all(convId);
-  if (!content) {
+  const others = members.filter(m => m.user_id !== meId);
-    return res.status(400).json({ success: false, message: '消息不能为空' });
+  const msgs = db.prepare('SELECT id, sender_id FROM messages WHERE conversation_id = ?').all(convId);
+  const nameCache = {};
+  const map = {};
+  for (const m of msgs) {
+    const unreadUsers = others
+      .filter(o => (o.last_read_message_id || 0) < m.id)
+      .map(o => {
+        if (!nameCache[o.user_id]) nameCache[o.user_id] = getUserDisplayName(o.user_id);
+        return { id: o.user_id, name: nameCache[o.user_id] };
+      });
+    map[m.id] = {
+      read_count: others.length - unreadUsers.length,
+      total_others: others.length,
+      unread_users: unreadUsers
+    };
   }
-  if (content.length > 2000) {
+  return map;
-    return res.status(400).json({ success: false, message: '消息过长（最多 2000 字）' });
 }
+
+// 轻量已读回执轮询（不标记已读，仅返回各消息的已读进度）
+app.get('/api/chat/conversations/:id/read-status', (req, res) => {
   const conv = db.prepare('SELECT * FROM conversations WHERE id = ?').get(req.params.id);
   if (!conv || !isConversationMember(req.params.id, req.user.id)) {
     return res.status(404).json({ success: false, message: '会话不存在' });
   }
-  const result = db.prepare('INSERT INTO messages (conversation_id, sender_id, content) VALUES (?, ?, ?)')
+  res.json({ success: true, data: buildReadStatusMap(req.params.id, req.user.id) });
-    .run(req.params.id, req.user.id, content);
+});
+
+// 发送消息：文本（content）或媒体（type=image/video/file + fileId，引用已上传附件）
+app.post('/api/chat/conversations/:id/messages', (req, res) => {
+  const msgType = ['text', 'image', 'video', 'file'].includes(req.body.type) ? req.body.type : 'text';
+  const content = String(req.body.content || '').trim();
+  const conv = db.prepare('SELECT * FROM conversations WHERE id = ?').get(req.params.id);
+  if (!conv || !isConversationMember(req.params.id, req.user.id)) {
+    return res.status(404).json({ success: false, message: '会话不存在' });
+  }
+  let fileId = '';
+  let finalContent = content;
+  if (msgType !== 'text') {
+    const file = db.prepare('SELECT * FROM chat_files WHERE id = ?').get(req.body.fileId);
+    if (!file || file.uploader_id !== req.user.id) {
+      return res.status(400).json({ success: false, message: '附件不存在，请重新上传' });
+    }
+    fileId = file.id;
+    if (!finalContent) finalContent = file.file_name;
+  } else if (!content) {
+    return res.status(400).json({ success: false, message: '消息不能为空' });
+  }
+  if (finalContent.length > 2000) {
+    return res.status(400).json({ success: false, message: '消息过长（最多 2000 字）' });
+  }
+  const result = db.prepare('INSERT INTO messages (conversation_id, sender_id, content, msg_type, file_id) VALUES (?, ?, ?, ?, ?)')
+    .run(req.params.id, req.user.id, finalContent, msgType, fileId);
   const msg = db.prepare('SELECT * FROM messages WHERE id = ?').get(result.lastInsertRowid);
   // 自己发送的消息直接标记已读
   db.prepare('UPDATE conversation_members SET last_read_message_id = ? WHERE conversation_id = ? AND user_id = ?')
     .run(msg.id, req.params.id, req.user.id);
-  res.json({ success: true, data: { ...msg, sender_name: req.user.display_name || req.user.username } });
+  const data = { ...msg, sender_name: req.user.display_name || req.user.username };
+  if (fileId) {
+    const f = db.prepare('SELECT * FROM chat_files WHERE id = ?').get(fileId);
+    data.file_name = f.file_name;
+    data.file_size = f.file_size;
+    data.file_mime = f.file_mime;
+    data.file_url = `/api/chat/files/${f.id}`;
+  }
+  // 推送给会话其他成员（群聊标题=群名，单聊标题=发送者）
+  const memberRows = db.prepare('SELECT user_id FROM conversation_members WHERE conversation_id = ?').all(req.params.id);
+  const senderName = req.user.display_name || req.user.username;
+  const pushTitle = conv.type === 'group' ? (conv.name || '群聊消息') : senderName;
+  pushToMany(memberRows.map(m => m.user_id), 'chat', pushTitle, `${senderName}：${messagePreview(msg)}`, req.user.id);
+  res.json({ success: true, data });
 });
 
 // 删除/解散会话（群聊仅群主可解散，单聊任一方可删除）
@@ -861,6 +1064,19 @@ app.delete('/api/chat/conversations/:id', (req, res) => {
   if (conv.type === 'group' && conv.creator_id !== req.user.id) {
     return res.status(403).json({ success: false, message: '只有群主可以解散群组' });
   }
+  // 清理会话内附件的磁盘文件与记录
+  const fileRows = db.prepare(`
+    SELECT f.id, f.stored_name FROM chat_files f
+    WHERE f.id IN (SELECT file_id FROM messages WHERE conversation_id = ? AND file_id != '')
+    AND NOT EXISTS (SELECT 1 FROM messages m2 WHERE m2.file_id = f.id AND m2.conversation_id != ?)
+  `).all(req.params.id, req.params.id);
+  for (const f of fileRows) {
+    const p = path.join(uploadsDir, f.stored_name);
+    if (fs.existsSync(p)) fs.unlinkSync(p);
+  }
+  if (fileRows.length) {
+    db.prepare(`DELETE FROM chat_files WHERE id IN (SELECT file_id FROM messages WHERE conversation_id = ? AND file_id != '')`).run(req.params.id);
+  }
   db.prepare('DELETE FROM messages WHERE conversation_id = ?').run(req.params.id);
   db.prepare('DELETE FROM conversation_members WHERE conversation_id = ?').run(req.params.id);
   db.prepare('DELETE FROM conversations WHERE id = ?').run(req.params.id);