fix: 优化各页面代码格式和样式

- 微调多个页面的样式和布局
- 保持功能不变

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

web/src/views/Database.vue

@@ -57,7 +57,7 @@ const {
     <!-- 顶部导航 -->
     <div class="flex justify-between items-center mb-6">
       <div class="flex items-center gap-2">
-        <i class="fa-solid fa-database text-gray-400"></i>
+        <i class="fa-solid fa-database text-orange-500"></i>
         <span class="font-medium">Database</span>
       </div>
       <button @click="openCreate" class="btn-primary">