feat: 分片上传断点续传、临时目录后台配置与清扫、宇恒云账号管理

- 管理端大文件分片上传与 sessionStorage 续传；Nginx 大请求体/超时
- .chunk-uploads 定期清扫；system_config 后台配置保留时长与扫描间隔
- 宇恒云 POST /register 对接与 yuheng_cloud_register_records 留痕；yuheng_cloud:manage 权限

Made-with: Cursor

admin/src/views/files/FileManage.vue

@@ -57,6 +57,7 @@
 
     <!-- 上传前选择是否可下载 -->
     <el-dialog v-model="uploadDialogVisible" title="上传文件" width="440px" :close-on-click-modal="false">
+      <p class="upload-resume-hint">≥8MB 将自动分片上传；中断后<strong>同一文件</strong>再次选择上传可续传（勿改文件名/大小）。</p>
       <el-form label-width="112px">
         <el-form-item label="当前目录">
           <span>{{ currentPath || '根目录' }}</span>
@@ -68,6 +69,9 @@
         <el-form-item label="允许下载">
           <el-switch v-model="uploadDownloadable" />
         </el-form-item>
+        <el-form-item v-if="uploading && uploadPercent > 0" label="进度">
+          <el-progress :percentage="uploadPercent" :stroke-width="16" />
+        </el-form-item>
       </el-form>
       <template #footer>
         <el-button @click="uploadDialogVisible = false">取消</el-button>
@@ -93,7 +97,8 @@
 <script setup>
 import { ref, computed, watch, onMounted } from 'vue'
 import { ElMessage, ElMessageBox } from 'element-plus'
-import { getSites, getSiteAssets, uploadSiteAsset, deleteSiteAsset, createSiteFolder } from '../../api/admin'
+import { getSites, getSiteAssets, deleteSiteAsset, createSiteFolder } from '../../api/admin'
+import { uploadSiteAssetWithResume } from '../../utils/siteAssetResumableUpload'
 
 const activeTab = ref('module')
 const siteId = ref('')
@@ -103,6 +108,7 @@ const subDirs = ref([])
 const loading = ref(false)
 const currentPath = ref('')
 const uploading = ref(false)
+const uploadPercent = ref(0)
 const uploadDialogVisible = ref(false)
 const uploadDownloadable = ref(false)
 const uploadPreserveFilename = ref(false)
@@ -167,12 +173,22 @@ const beforeUpload = (file) => {
 const doUpload = async () => {
   if (!pendingFile.value || !siteId.value) return
   uploading.value = true
+  uploadPercent.value = 0
   try {
-    await uploadSiteAsset(siteId.value, pendingFile.value, {
-      folder: currentPath.value || undefined,
-      downloadable: uploadDownloadable.value,
-      preserveFilename: uploadPreserveFilename.value
-    })
+    await uploadSiteAssetWithResume(
+      siteId.value,
+      pendingFile.value,
+      {
+        folder: currentPath.value || undefined,
+        downloadable: uploadDownloadable.value,
+        preserveFilename: uploadPreserveFilename.value
+      },
+      {
+        onProgress: ({ percent }) => {
+          uploadPercent.value = percent
+        }
+      }
+    )
     ElMessage.success('上传成功')
     uploadDialogVisible.value = false
     pendingFile.value = null
@@ -181,6 +197,7 @@ const doUpload = async () => {
     ElMessage.error(e.response?.data?.error || e.message || '上传失败')
   } finally {
     uploading.value = false
+    uploadPercent.value = 0
   }
 }
 
@@ -230,4 +247,10 @@ onMounted(() => fetchSites().then(() => fetchList()))
 .breadcrumb-wrap { margin-top: 12px; }
 .subdirs { margin-top: 8px; font-size: 13px; color: #666; }
 .subdirs .label { margin-right: 8px; }
+.upload-resume-hint {
+  margin: 0 0 12px;
+  font-size: 12px;
+  color: #606266;
+  line-height: 1.5;
+}
 </style>