fix(智能分诊排队管理): 移除候选池和队列的硬编码假数据，消除页面加载时的数据闪现问题

- 删除 getInitialCandidatePoolList() 和 getInitialQueueList() 两个硬编码函数（共8条虚构患者/队列记录）
  - 候选池和队列 ref 初始值由硬编码假数据改为空数组 []
  - currentDate 初始值由固定日期改为空字符串，由 loadDataFromApi 动态计算
  - currentCall 初始值由假数据(郑华/4号诊室)改为占位符(-/-/-)，由 syncCurrentCallFromQueue 动态同步
  - loadDataFromApi 异常回退不再注入假数据，统一清空为 []

healthlink-his-ui/src/views/triageandqueuemanage/cardiology/index.vue

@@ -687,15 +687,15 @@ import {
 } from '../api'
 
 // 当前日期 & 统计信息（总已签到/在队列中）
-const currentDate = ref('2025/12/22 上午')
+const currentDate = ref('')
 const totalSignedIn = ref(0)
 const totalInQueue = ref(0)
 
 // 当前呼叫信息
 const currentCall = ref({
-  number: '1',
-  name: '郑华',
-  room: '4号诊室'
+  number: '-',
+  name: '-',
+  room: '-'
 })
 
 // 当前选中的队列行（用于选呼）
@@ -785,85 +785,6 @@ const weekOptions = [
 // 叫号类型
 const callType = ref('选呼')
 
-// ============ 数据初始化/刷新（前端模拟） ============
-const getInitialCandidatePoolList = () => ([
-  {
-    sequenceNo: 12,
-    patientName: '陈明',
-    age: 65,
-    appointmentType: '专家',
-    room: '3号诊室',
-    doctor: '张医生',
-    matchingRule: '年龄≥60'
-  },
-  {
-    sequenceNo: 13,
-    patientName: '刘芳',
-    age: 58,
-    appointmentType: '普通',
-    room: '4号诊室',
-    doctor: '李医生',
-    matchingRule: '-'
-  },
-  {
-    sequenceNo: 14,
-    patientName: '周强',
-    age: 45,
-    appointmentType: '普通',
-    room: '5号诊室',
-    doctor: '王医生',
-    matchingRule: '-'
-  },
-  {
-    sequenceNo: 15,
-    patientName: '吴伟',
-    age: 72,
-    appointmentType: '专家',
-    room: '3号诊室',
-    doctor: '张医生',
-    matchingRule: '年龄≥70'
-  }
-])
-
-const getInitialQueueList = () => ([
-  {
-    queueOrder: 1,
-    patientName: '林静',
-    appointmentType: '专家',
-    room: '3号诊室',
-    doctor: '张医生',
-    waitingTime: '05:00',
-    status: '等待'
-  },
-  {
-    queueOrder: 2,
-    patientName: '郑华',
-    appointmentType: '普通',
-    room: '4号诊室',
-    doctor: '李医生',
-    waitingTime: '00:00',
-    status: '叫号中'
-  },
-  {
-    queueOrder: 3,
-    patientName: '王丽',
-    appointmentType: '普通',
-    room: '5号诊室',
-    doctor: '王医生',
-    waitingTime: '08:00',
-    status: '等待'
-  },
-  {
-    queueOrder: 4,
-    patientName: '张伟',
-    appointmentType: '专家',
-    room: '3号诊室',
-    doctor: '张医生',
-    waitingTime: '12:00',
-    status: '等待'
-  }
-])
-
 const syncCurrentCallFromQueue = () => {
   const calling = originalQueueList.value.find((i) => i.status === '叫号中')
   if (!calling) {
@@ -1108,12 +1029,12 @@ const loadDataFromApi = async () => {
         }))
         console.log('【心内科】候选池已加载', originalCandidatePoolList.value.length, '条今天的数据')
       } else {
-        console.log('【心内科】候选池数据为空数组或非数组，使用默认数据')
-        originalCandidatePoolList.value = getInitialCandidatePoolList()
+        console.log('【心内科】候选池数据为空数组或非数组')
+        originalCandidatePoolList.value = []
       }
     } else {
-      console.log('【心内科】候选池响应为空或格式错误，使用默认数据')
-      originalCandidatePoolList.value = getInitialCandidatePoolList()
+      console.log('【心内科】候选池响应为空或格式错误')
+      originalCandidatePoolList.value = []
     }
 
     // 2) 队列列表：从数据库读取（可刷新、可恢复）
@@ -1161,10 +1082,8 @@ const loadDataFromApi = async () => {
     console.log('【心内科】数据加载完成：候选池', originalCandidatePoolList.value.length, '条，队列', originalQueueList.value.length, '条')
     ElMessage.success('【心内科】已从门诊挂号接口加载数据')
   } catch (e) {
-    console.error('【心内科】loadDataFromApi 执行异常，使用本地假数据：', e)
-    // 任何异常：回退本地假数据
-    originalCandidatePoolList.value = getInitialCandidatePoolList()
-    // 队列不再回退假数据，避免误导
+    console.error('【心内科】loadDataFromApi 执行异常：', e)
+    originalCandidatePoolList.value = []
     originalQueueList.value = []
     totalSignedIn.value = originalCandidatePoolList.value.length
     totalInQueue.value = originalQueueList.value.length
@@ -1173,7 +1092,7 @@ const loadDataFromApi = async () => {
 }
 
 // 原始数据存储（用于过滤）
-const originalCandidatePoolList = ref(getInitialCandidatePoolList())
+const originalCandidatePoolList = ref([])
 
 // 过滤后的智能候选池数据（按诊室过滤）
 const filteredCandidatePoolList = computed(() => {
@@ -1184,7 +1103,7 @@ const filteredCandidatePoolList = computed(() => {
 })
 
 // 原始队列数据存储（用于过滤）
-const originalQueueList = ref(getInitialQueueList())
+const originalQueueList = ref([])
 
 // 动态计算已加载数据中的唯一诊室列表（依赖上方两个 ref，确保声明顺序正确）
 const uniqueRooms = computed(() => {