refactor(crm): 统一搜索字段名并优化搜索功能

- 将多个页面的搜索字段统一命名为"keyword"以提高一致性
- 优化搜索按钮布局和交互，添加明确的搜索按钮
- 调整字段标签和占位文本使其更准确
- 修复合同列表导出功能中的HTML内容处理逻辑

klp-ui/src/views/crm/customer/index.vue

@@ -6,14 +6,17 @@
         <div style="font-weight: 900;">客户列表</div>
         <!-- 搜索区域 -->
         <div style="display: flex; align-items: center; gap: 5px; margin-top: 10px;">
-          <el-input style="flex: 1;" prefix-icon="el-icon-search" placeholder="输入客户编码搜索"
-            v-model="queryParams.customerCode" @change="getCustomerList" clearable></el-input>
-          <el-button icon="el-icon-search" @click="toggleQuery"></el-button>
+          <el-input style="flex: 1;" prefix-icon="el-icon-search" placeholder="输入关键字搜索"
+            v-model="queryParams.keyword" @change="getCustomerList" clearable></el-input>
+          <el-button icon="el-icon-sort" @click="toggleQuery"></el-button>
+          <el-button type="primary" icon="el-icon-search" style="margin-left: 0;" size="mini" @click="getCustomerList"></el-button>
           <el-button type="primary" icon="el-icon-plus" style="margin-left: 0;" @click="handleAdd"></el-button>
         </div>
         <!-- 高级查询区域 -->
         <div v-show="showQuery"
           style="display: flex; align-items: center; gap: 5px; margin-top: 10px; flex-wrap: wrap;">
+          <el-input style="width: 180px" placeholder="客户编码"
+            v-model="queryParams.customerCode" @change="getCustomerList" clearable></el-input>
           <el-select style="width: 100px;" v-model="queryParams.industry" placeholder="客户行业" clearable
             @change="getCustomerList">
             <el-option v-for="item in dict.type.customer_industry" :key="item.value" :label="item.label"