feat(timesheetPreAlloc): 添加导出分配明细功能

- 在界面中新增导出分配明细按钮
- 实现 handleExportDetail 方法处理明细导出逻辑
- 支持选中数据时仅导出选中项的分配明细
- 添加时间戳确保导出文件名唯一性
- 集成权限控制以保护导出功能访问

src/views/oa/erp/timesheetPreAlloc/index.vue

@@ -68,6 +68,11 @@
           <el-col :span="1.5">
             <el-button type="warning" plain icon="Download" @click="handleExport" v-hasPermi="['oa/erp:timesheetPreAlloc:export']"> 导出 </el-button>
           </el-col>
+          <el-col :span="1.5">
+            <el-button type="warning" plain icon="Download" @click="handleExportDetail" v-hasPermi="['oa/erp:timesheetPreAlloc:export']">
+              导出分配明细
+            </el-button>
+          </el-col>
           <right-toolbar v-model:showSearch="showSearch" :columns="columns" :search="true" @queryTable="getList" />
         </el-row>
       </template>
@@ -632,6 +637,18 @@ const handleExport = () => {
   );
 };
 
+const handleExportDetail = () => {
+  proxy?.download(
+    'oa/erp/timesheetPreAlloc/exportDetail',
+    {
+      ...queryParams.value,
+      // 如果选中了数据，则只导出选中的数据的分配明细
+      allocIds: ids.value.length > 0 ? ids.value.join(',') : undefined
+    },
+    `timesheetPreAllocDetail_${new Date().getTime()}.xlsx`
+  );
+};
+
 onMounted(async () => {
   await Promise.all([loadTargetProjectOptions(), loadQuerySourceProjectOptions()]);
   await getList();