feat: add PC admin App Version Management page with APK upload

- Backend: CRUD endpoints for app versions (list, create, delete, download)
- Backend: APK file upload with multipart form data
- Backend: Version data stored in JSON file, APK files in data/app_versions/
- Frontend: Vue 3 + Element Plus page at /app-versions
- Frontend: Drag-and-drop APK upload, version publish, force update config
- Frontend: Version history table with "set as latest" and delete actions
- Menu item under System Settings (admin only)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/components/MainLayout.vue

@@ -104,7 +104,7 @@ import {
   Grid, Document, User, ChatLineSquare, Share, UserFilled,
   Clock, Monitor, List, Connection, Setting, Star, Shop,
   Tools, Bell, Tickets, OfficeBuilding, Lock, ArrowDown, DataAnalysis,
-  Sunny, Moon
+  Sunny, Moon, Iphone
 } from '@element-plus/icons-vue'
 import GlobalSearch from '@/components/GlobalSearch.vue'
 import BreadcrumbNav from '@/components/BreadcrumbNav.vue'
@@ -189,6 +189,7 @@ const menuGroups = computed<MenuGroup[]>(() => {
         { index: 'model-configs', label: '模型配置管理', description: '管理LLM模型', path: '/model-configs', icon: Setting },
         { index: 'workspaces', label: '工作区', description: '管理多工作区', path: '/workspaces', pathPattern: '/workspace', icon: OfficeBuilding },
         { index: 'permissions', label: '权限管理', description: '用户权限管理', path: '/permissions', icon: Lock, adminOnly: true },
+        { index: 'app-versions', label: 'App版本管理', description: '发布App新版本', path: '/app-versions', icon: Iphone, adminOnly: true },
       ],
     },
   ]

frontend/src/router/index.ts

@@ -207,6 +207,12 @@ const router = createRouter({
       name: 'teams',
       component: () => import('@/views/TeamBuilder.vue'),
       meta: { requiresAuth: true }
+    },
+    {
+      path: '/app-versions',
+      name: 'app-versions',
+      component: () => import('@/views/AppVersionManage.vue'),
+      meta: { requiresAuth: true, requiresAdmin: true }
     }
   ]
 })

frontend/src/views/AppVersionManage.vue

@@ -0,0 +1,248 @@
+<template>
+  <MainLayout>
+    <div class="app-version-page">
+      <el-card>
+        <template #header>
+          <div class="card-header">
+            <h2>App 版本管理</h2>
+          </div>
+        </template>
+
+        <!-- 当前最新版本 -->
+        <el-alert
+          v-if="latest.version"
+          :title="`当前已发布: v${latest.version} (${latest.platform || 'android'})`"
+          type="success"
+          :closable="false"
+          show-icon
+          style="margin-bottom: 20px"
+        />
+        <el-alert
+          v-else
+          title="尚未发布任何版本"
+          type="warning"
+          :closable="false"
+          show-icon
+          style="margin-bottom: 20px"
+        />
+
+        <!-- 发布新版本 -->
+        <el-divider content-position="left">发布新版本</el-divider>
+        <el-form :model="form" label-width="120px" style="max-width: 600px">
+          <el-form-item label="APK 文件">
+            <el-upload
+              ref="uploadRef"
+              :auto-upload="false"
+              :limit="1"
+              :on-change="handleFileChange"
+              :on-remove="handleFileRemove"
+              accept=".apk"
+              drag
+            >
+              <el-icon class="el-icon--upload"><UploadFilled /></el-icon>
+              <div class="el-upload__text">拖拽 APK 文件到此处 或 <em>点击上传</em></div>
+            </el-upload>
+          </el-form-item>
+
+          <el-form-item label="版本号" required>
+            <el-input v-model="form.version" placeholder="如 1.0.1" style="width: 200px" />
+          </el-form-item>
+
+          <el-form-item label="强制更新最低版本">
+            <el-input v-model="form.forceUpdateMin" placeholder="低于此版本将强制更新，如 1.0.0" />
+            <div style="font-size: 12px; color: #909399; margin-top: 4px">
+              当前版本低于此值时，客户端将强制要求更新（不可跳过）
+            </div>
+          </el-form-item>
+
+          <el-form-item label="更新日志">
+            <el-input
+              v-model="form.releaseNotes"
+              type="textarea"
+              :rows="4"
+              placeholder="描述本次更新内容，支持换行"
+            />
+          </el-form-item>
+
+          <el-form-item>
+            <el-button type="primary" @click="handlePublish" :loading="publishing">
+              <el-icon><Upload /></el-icon>
+              {{ form.version && latest.version && form.version !== latest.version ? '发布新版本' : '更新发布' }}
+            </el-button>
+          </el-form-item>
+        </el-form>
+
+        <!-- 版本历史 -->
+        <el-divider content-position="left">版本历史</el-divider>
+        <el-table :data="versions" stripe>
+          <el-table-column prop="version" label="版本号" width="120" />
+          <el-table-column prop="platform" label="平台" width="80" />
+          <el-table-column prop="release_notes" label="更新日志" min-width="200" />
+          <el-table-column prop="force_update_min" label="强制更新阈值" width="140" />
+          <el-table-column prop="created_at" label="发布时间" width="180">
+            <template #default="{ row }">
+              {{ formatDate(row.created_at) }}
+            </template>
+          </el-table-column>
+          <el-table-column label="操作" width="150" fixed="right">
+            <template #default="{ row }">
+              <el-button
+                size="small"
+                type="primary"
+                link
+                @click="handleSetLatest(row)"
+              >
+                设为最新
+              </el-button>
+              <el-popconfirm
+                title="确定删除此版本？"
+                @confirm="handleDelete(row.version)"
+              >
+                <template #reference>
+                  <el-button size="small" type="danger" link>删除</el-button>
+                </template>
+              </el-popconfirm>
+            </template>
+          </el-table-column>
+        </el-table>
+      </el-card>
+    </div>
+  </MainLayout>
+</template>
+
+<script setup lang="ts">
+import { ref, reactive, onMounted } from 'vue'
+import { ElMessage } from 'element-plus'
+import { Upload, UploadFilled } from '@element-plus/icons-vue'
+import MainLayout from '@/components/MainLayout.vue'
+import api from '@/api'
+import type { UploadFile, UploadInstance } from 'element-plus'
+
+const uploadRef = ref<UploadInstance>()
+const publishing = ref(false)
+const latest = ref<Record<string, any>>({})
+const versions = ref<Array<Record<string, any>>>([])
+const selectedFile = ref<File | null>(null)
+
+const form = reactive({
+  version: '',
+  forceUpdateMin: '',
+  releaseNotes: '',
+})
+
+async function loadData() {
+  try {
+    const res = await api.get('/api/v1/app/versions')
+    latest.value = res.data.latest || {}
+    versions.value = res.data.versions || []
+    // 预填表单
+    if (latest.value.version && !form.version) {
+      form.version = bumpVersion(latest.value.version)
+      form.forceUpdateMin = latest.value.force_update_min || ''
+      form.releaseNotes = ''
+    }
+  } catch (e: any) {
+    ElMessage.error('加载版本列表失败')
+  }
+}
+
+function bumpVersion(v: string): string {
+  const parts = v.split('.').map(Number)
+  parts[parts.length - 1]++
+  return parts.join('.')
+}
+
+function handleFileChange(file: UploadFile) {
+  selectedFile.value = file.raw || null
+}
+
+function handleFileRemove() {
+  selectedFile.value = null
+}
+
+async function handlePublish() {
+  if (!form.version) {
+    ElMessage.warning('请输入版本号')
+    return
+  }
+
+  publishing.value = true
+  try {
+    const fd = new FormData()
+    if (selectedFile.value) {
+      fd.append('file', selectedFile.value)
+    }
+    fd.append('version', form.version)
+    fd.append('platform', 'android')
+    fd.append('force_update_min', form.forceUpdateMin)
+    fd.append('release_notes', form.releaseNotes)
+
+    await api.post('/api/v1/app/versions', fd, {
+      headers: { 'Content-Type': 'multipart/form-data' },
+    })
+
+    ElMessage.success(`版本 ${form.version} 发布成功！`)
+    uploadRef.value?.clearFiles()
+    selectedFile.value = null
+    form.version = bumpVersion(form.version)
+    form.releaseNotes = ''
+    await loadData()
+  } catch (e: any) {
+    const msg = e.response?.data?.detail || e.message || '发布失败'
+    ElMessage.error(msg)
+  } finally {
+    publishing.value = false
+  }
+}
+
+async function handleSetLatest(row: Record<string, any>) {
+  try {
+    const fd = new FormData()
+    fd.append('version', row.version)
+    fd.append('platform', row.platform)
+    fd.append('force_update_min', row.force_update_min || '')
+    fd.append('release_notes', row.release_notes || '')
+    await api.post('/api/v1/app/versions', fd)
+    ElMessage.success(`已将 v${row.version} 设为最新版本`)
+    await loadData()
+  } catch (e: any) {
+    ElMessage.error(e.message || '操作失败')
+  }
+}
+
+async function handleDelete(versionStr: string) {
+  try {
+    await api.delete(`/api/v1/app/versions/${versionStr}`)
+    ElMessage.success('版本已删除')
+    await loadData()
+  } catch (e: any) {
+    ElMessage.error(e.message || '删除失败')
+  }
+}
+
+function formatDate(d: string): string {
+  if (!d) return '-'
+  try {
+    return new Date(d).toLocaleString('zh-CN')
+  } catch {
+    return d
+  }
+}
+
+onMounted(loadData)
+</script>
+
+<style scoped>
+.app-version-page {
+  max-width: 900px;
+  margin: 0 auto;
+}
+.card-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+.card-header h2 {
+  margin: 0;
+}
+</style>