fix(统计业务): 修复VIP统计页面加载状态和表格样式

- 在所有VIP统计和到期统计页面中添加加载状态指示
- 更新表格头部和单元格样式，增加内边距以改善可读性
- 调整表格单元格的行高，确保内容显示更为美观

src/views/modules/statisticsBusiness/vipStatistics/expiresStatisticsBase.vue

@@ -1,5 +1,5 @@
 <template>
-  <div class="vip-expires-statistics">
+  <div class="vip-expires-statistics" v-loading="loading">
     <div class="summary-section">
       <div class="section-title">汇总统计</div>
       <div class="summary-grid">
@@ -27,11 +27,10 @@
 
       <div ref="tableContainer" class="table-container">
         <el-table
-          v-loading="loading"
           :data="dataList"
           border
-          :header-cell-style="{ textAlign: 'center' }"
-          :cell-style="{ textAlign: 'center' }"
+          :header-cell-style="{ textAlign: 'center', padding: '6px 0' }"
+          :cell-style="{ textAlign: 'center', padding: '6px 0' }"
           :max-height="tableHeight"
         >
           <el-table-column type="index" label="序号" width="70" />
@@ -203,6 +202,13 @@ export default {
 </script>
 
 <style scoped lang="less">
+/deep/ .el-table .cell,
+/deep/ .el-table th > .cell {
+  padding-top: 4px;
+  padding-bottom: 4px;
+  line-height: 20px;
+}
+
 .vip-expires-statistics {
   display: flex;
   flex-direction: column;