feat: 看板支持A/B组对比下钻 + 全屏 + 删除返回按钮 + 全系统组别(A/B)支持

index.php

@@ -124,12 +124,13 @@ $rosterCount = Roster::count();
             <th class="sortable" data-k="sid">学号</th>
             <th class="sortable" data-k="name">姓名</th>
             <th class="sortable" data-k="cls">班级</th>
+            <th class="sortable" data-k="grp">组别</th>
             <th class="sortable" data-k="score">成绩</th>
             <th class="sortable" data-k="submit_ts">提交时间</th>
             <th class="sortable" data-k="duration">考试时长</th>
           </tr>
         </thead>
-        <tbody id="tbody"><tr><td colspan="6" class="empty">请选择问卷 / 考试</td></tr></tbody>
+        <tbody id="tbody"><tr><td colspan="7" class="empty">请选择问卷 / 考试</td></tr></tbody>
       </table>
     </div>
   </section>
@@ -139,8 +140,8 @@ $rosterCount = Roster::count();
       <div class="panel-head"><h2>缺考名单 <small id="absentHint"></small></h2></div>
       <div class="table-scroll short">
         <table class="grid compact">
-          <thead><tr><th>学号</th><th>姓名</th><th>班级</th></tr></thead>
-          <tbody id="absentBody"><tr><td colspan="3" class="empty">—</td></tr></tbody>
+          <thead><tr><th>学号</th><th>姓名</th><th>班级</th><th>组别</th></tr></thead>
+          <tbody id="absentBody"><tr><td colspan="4" class="empty">—</td></tr></tbody>
         </table>
       </div>
     </section>
@@ -229,7 +230,7 @@ $rosterCount = Roster::count();
         <input type="file" id="rosterFile" accept=".xlsx,.xlsm,.csv,.txt" hidden>
         <div class="uz-inner">
           <strong>点击或拖拽文件到此上传</strong>
-          <span>支持 .xlsx / .csv，需包含「学号」「姓名」两列（「班级」可选）</span>
+          <span>支持 .xlsx / .csv，需包含「学号」「姓名」两列（「班级」「组别」可选，组别如 A/B）</span>
         </div>
       </div>
       <div class="roster-bar">
@@ -245,7 +246,7 @@ $rosterCount = Roster::count();
       </div>
       <div class="table-scroll mid">
         <table class="grid compact" id="rosterTable">
-          <thead><tr><th style="width:32%">学号</th><th style="width:26%">姓名</th><th>班级</th><th style="width:70px">操作</th></tr></thead>
+          <thead><tr><th style="width:28%">学号</th><th style="width:22%">姓名</th><th>班级</th><th>组别</th><th style="width:70px">操作</th></tr></thead>
           <tbody id="rosterBody"></tbody>
         </table>
       </div>