feat: 会议批量审核 + 公示按发布时间倒序 + 现场照片 dialog 预览 + 重复报错精确

- 会议列表 manager 批量合规审核 (批量通过/退回, best-effort 逐条回执)
- 公示列表按 publish_time 倒序, 发布/开通写本地 publish_time (修 toISOString UTC 时区 bug)
- 签到表/前全景/后全景「查看照片」改 dialog 预览 (复用 Preview.vue)
- 手机号/用户名重复报错精确提示 (后端 fieldMap + 前端 duplicateTip)
- 医生首页欢迎语改「欢迎使用合规系统」

ry-vue3/src/components/CameraQrUpload.vue

@@ -21,11 +21,14 @@
       <el-button type="primary" size="small" :disabled="readonly" @click="openDialog">
         <el-icon><CameraFilled /></el-icon>&nbsp;扫码拍照
       </el-button>
-      <a v-if="modelValue" :href="modelValue" target="_blank" class="cam-link">查看照片</a>
+      <el-button v-if="modelValue" link type="primary" size="small" @click="openPreview">查看照片</el-button>
       <span v-else class="cam-empty">未上传</span>
       <span v-if="polling" class="cam-polling">等待手机回传…</span>
     </div>
 
+    <!-- 照片预览: 复用全局 Preview.vue (dialog 内预览, 图片/PDF 自适应, 非新窗口) -->
+    <Preview v-model="previewOpen" :url="previewUrl" :title="previewTitle" />
+
     <el-dialog
       v-model="visible"
       :title="`扫码拍照 - ${label}`"
@@ -52,6 +55,7 @@ import request from '@/utils/request'
 import { ElMessage } from 'element-plus'
 import { CameraFilled } from '@element-plus/icons-vue'
 import QRCode from 'qrcode'
+import Preview from '@/components/Preview.vue'
 
 const props = defineProps({
   modelValue: { type: String, default: '' },
@@ -73,6 +77,9 @@ const visible = ref(false)
 const qrUrl = ref('')
 const qrLoading = ref(false)
 const polling = ref(false)
+const previewOpen = ref(false)
+const previewUrl = ref('')
+const previewTitle = ref('')
 let pollTimer = null
 let baseline = ''
 
@@ -142,6 +149,14 @@ function onClosed() {
   stopPolling()
 }
 
+/** 打开照片预览 dialog (复用全局 Preview.vue, 图片/PDF 自适应) */
+function openPreview() {
+  if (!props.modelValue) return
+  previewUrl.value = props.modelValue
+  previewTitle.value = props.label
+  previewOpen.value = true
+}
+
 onBeforeUnmount(stopPolling)
 </script>
 
@@ -151,8 +166,6 @@ onBeforeUnmount(stopPolling)
   display: flex; align-items: center; gap: 12px;
   min-height: 36px;
 }
-.cam-link { color: var(--brand-primary); text-decoration: none; font-size: 13px; }
-.cam-link:hover { text-decoration: underline; }
 .cam-empty { color: #c0c4cc; font-size: 13px; }
 .cam-polling { color: #e6a23c; font-size: 12px; }