feat: add admin console and review workflow

app/static/index.html

@@ -13,7 +13,7 @@
         <p id="healthText">正在读取数据状态</p>
       </div>
       <div class="top-actions">
-        <a class="nav-button" href="/accounts">课时账户</a>
+        <a class="nav-button" href="/admin">管理后台</a>
         <button id="refreshBtn" class="icon-button" title="刷新数据" type="button" aria-label="刷新数据">
           ↻
         </button>
@@ -43,7 +43,10 @@
         <div id="recordMeta" class="summary-grid"></div>
         <div id="correctionToolbar" class="correction-toolbar" hidden>
           <span id="correctionStatus">已修改 0 条记录</span>
-          <button id="copyCorrectedBtn" type="button">复制已修改记录</button>
+          <div class="toolbar-actions">
+            <button id="copyCorrectedBtn" type="button">复制已修改记录</button>
+            <button id="submitCorrectionsBtn" type="button">提交审核</button>
+          </div>
         </div>
         <div id="inlineAccount" class="inline-account" hidden></div>
         <div class="table-wrap">
@@ -116,6 +119,6 @@
       </section>
     </div>
 
-    <script src="/static/app.js?v=20260613-sort-labels"></script>
+    <script src="/static/app.js?v=20260613-admin-review"></script>
   </body>
 </html>