Fix Bug #499: 【住院医生工作站-检查申请】检查申请列表缺失查询过滤功能，不符合临床高效检索要求

- 新增关键字搜索输入框（申请单号/检查项目名称模糊匹配）
- 设置日期范围默认为近7天
- 关键字搜索支持回车触发查询

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

openhis-ui-vue3/src/views/inpatientDoctor/home/components/applicationShow/examineApplication.vue

@@ -49,6 +49,15 @@
               <el-option label="已作废" value="7" />
             </el-select>
           </el-form-item>
+          <el-form-item label="关键字">
+            <el-input
+              v-model="filterForm.keyword"
+              placeholder="申请单号 / 检查项目名称"
+              clearable
+              style="width: 220px"
+              @keyup.enter="handleSearch"
+            />
+          </el-form-item>
           <el-form-item>
             <el-button type="primary" @click="handleSearch" :loading="loading">
               <el-icon><Search /></el-icon>
@@ -213,10 +222,19 @@ const currentDetail = ref(null);
 const descJsonData = ref(null);
 const orgOptions = ref([]);
 
+// 获取近7天的日期范围作为默认值
+const getDefaultDateRange = () => {
+  const now = new Date();
+  const endDate = now.toISOString().split('T')[0];
+  const startDate = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000).toISOString().split('T')[0];
+  return [startDate, endDate];
+};
+
 // 筛选表单数据
 const filterForm = ref({
-  dateRange: [], // [startDate, endDate]
+  dateRange: getDefaultDateRange(), // 默认近一周
   status: '', // 申请单状态
+  keyword: '', // 关键字搜索
 });
 
 const fetchData = async () => {
@@ -241,6 +259,11 @@ const fetchData = async () => {
       params.status = filterForm.value.status;
     }
 
+    // 添加关键字搜索
+    if (filterForm.value.keyword && filterForm.value.keyword.trim()) {
+      params.keyword = filterForm.value.keyword.trim();
+    }
+
     const res = await getCheck(params);
     if (res.code === 200 && res.data) {
       const raw = res.data?.records || res.data;
@@ -277,8 +300,9 @@ const handleSearch = async () => {
  * 重置按钮处理
  */
 const handleReset = () => {
-  filterForm.value.dateRange = [];
+  filterForm.value.dateRange = getDefaultDateRange();
   filterForm.value.status = '';
+  filterForm.value.keyword = '';
   fetchData();
 };
 
@@ -486,8 +510,9 @@ watch(
       getLocationInfo();
     } else {
       tableData.value = [];
-      filterForm.value.dateRange = [];
+      filterForm.value.dateRange = getDefaultDateRange();
       filterForm.value.status = '';
+      filterForm.value.keyword = '';
     }
   },
   { immediate: true }