refactor(reports): 优化报表导出和数据处理逻辑

- 异步动态引入 XLSX 库以优化加载性能
- 抽取导出表格为工作簿的异步函数，提高代码复用性
- 使用构建函数封装报表数据行和汇总的生成逻辑
- 替换硬编码数据聚合为调用构建函数，简化代码结构
- 在导出功能中支持异步操作，增强用户体验
- 统一格式化和统计报表数据，提升代码可维护性

src/components/admin/admin-table-export-button.tsx

@@ -3,7 +3,6 @@
 import { Download } from "lucide-react";
 import { useTranslation } from "react-i18next";
 import { toast } from "sonner";
-import * as XLSX from "xlsx";
 
 import { Button } from "@/components/ui/button";
 
@@ -60,6 +59,17 @@ function stripOmittedColumns(table: HTMLTableElement): HTMLTableElement {
   return clone;
 }
 
+async function exportTableToWorkbook(table: HTMLTableElement, sheetName: string, filename: string): Promise<void> {
+  const XLSX = await import("xlsx");
+  const exportTable = stripOmittedColumns(table);
+  const workbook = XLSX.utils.table_to_book(exportTable, {
+    sheet: sheetName,
+    raw: true,
+  });
+  const safeName = filename.endsWith(".xlsx") ? filename : `${filename}.xlsx`;
+  XLSX.writeFile(workbook, safeName);
+}
+
 export function AdminTableExportButton({
   tableId,
   filename,
@@ -73,7 +83,7 @@ export function AdminTableExportButton({
 }) {
   const { t } = useTranslation("common");
 
-  const onExport = () => {
+  const onExport = async () => {
     const table = document.getElementById(tableId);
     if (!(table instanceof HTMLTableElement)) {
       toast.error(t("toast.exportFailed"));
@@ -81,13 +91,7 @@ export function AdminTableExportButton({
     }
 
     try {
-      const exportTable = stripOmittedColumns(table);
-      const workbook = XLSX.utils.table_to_book(exportTable, {
-        sheet: sheetName,
-        raw: true,
-      });
-      const safeName = filename.endsWith(".xlsx") ? filename : `${filename}.xlsx`;
-      XLSX.writeFile(workbook, safeName);
+      await exportTableToWorkbook(table, sheetName, filename);
       toast.success(t("toast.exportDone"));
     } catch {
       toast.error(t("toast.exportFailed"));