fix: put 生成一篇 in second position in the generate dropdown menu

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/GenerateMenuButton.vue

@@ -55,14 +55,14 @@ onUnmounted(() => {
       生成教案 ▾
     </button>
     <ul v-if="open" class="generate-menu-list" role="menu">
-      <li role="menuitem">
-        <button type="button" data-testid="generate" @click="select('generate')">生成一篇</button>
-      </li>
       <li role="menuitem">
         <button type="button" data-testid="batch-generate" @click="select('batchGenerate')">
           批量生成
         </button>
       </li>
+      <li role="menuitem">
+        <button type="button" data-testid="generate" @click="select('generate')">生成一篇</button>
+      </li>
     </ul>
   </div>
 </template>