将 web-admin 从子模块改为仓库内普通目录，便于单仓克隆与维护。

Co-authored-by: Cursor <cursoragent@cursor.com>

web-admin/src/utils/fullscreen-loading.ts

@@ -0,0 +1,25 @@
+import { ElLoading } from 'element-plus'
+
+const defaultOptions = {
+  lock: true,
+  background: 'rgba(0, 0, 0, 0.35)'
+} as const
+
+/** 全屏蒙层 + 异步任务；无论成功/失败都会在 finally 关闭 */
+export async function withFullscreenLoading<T>(
+  task: () => Promise<T>,
+  text = '请稍候…'
+): Promise<T> {
+  const inst = ElLoading.service({ ...defaultOptions, text })
+  try {
+    return await task()
+  } finally {
+    inst.close()
+  }
+}
+
+export const fullscreenLoadingText = {
+  save: '正在保存，请稍候…',
+  delete: '正在删除，请稍候…',
+  batchDelete: '正在批量删除，请稍候…'
+} as const