feat(notice): 新增公告优先级和未读状态功能，优化公告展示逻辑

openhis-ui-vue3/src/components/NoticePopup/index.vue

@@ -241,7 +241,9 @@ const loadNotices = async () => {
   try {
     const res = await getUserNotices()
     if (res.code === 200) {
-      noticeList.value = res.data || []
+      noticeList.value = (res.data || []).sort((a, b) => {
+        return new Date(b.createTime) - new Date(a.createTime)
+      })
       // 设置第一个未读公告为激活状态，如果没有未读则设置第一个
       const firstUnread = noticeList.value.find(n => !n.isRead)
       if (firstUnread) {
@@ -359,7 +361,8 @@ defineExpose({
 }
 
 .notice-list {
-  width: 380px;
+  width: 25%;
+  min-width: 200px;
   border-right: 1px solid #e4e7ed;
   background: #fafafa;
   
@@ -368,6 +371,7 @@ defineExpose({
     cursor: pointer;
     border-bottom: 1px solid #e4e7ed;
     transition: all 0.3s;
+    position: relative;
     
     &:hover {
       background: #f0f2f5;