fix(CommentsView): 移除固定高度并添加滚动条以改善用户体验

refactor(listComments): 简化评论排序逻辑

移除CommentsView中的固定高度限制并添加overflow-y属性，使内容可滚动
修改listComments的SQL查询，去除priority排序以简化逻辑

cwd-admin/src/views/CommentsView.vue

@@ -921,13 +921,13 @@ onMounted(() => {
   box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
   width: 100%;
   max-width: 600px;
-  height: 100vh;
   padding: 20px 20px 24px;
   display: flex;
   flex-direction: column;
   gap: 16px;
   transform: translateX(0);
   animation: drawer-in 0.2s ease-out;
+  overflow-y: auto;
 }
 
 .modal-title {