feat: 改善登录表单的可访问性和自动填充支持

- 为所有表单字段添加 id 和 name 属性
- 添加 autocomplete 属性支持浏览器自动填充
- 使用 for 属性正确关联 label 和 input
- 优化代码格式符合 Prettier 规范

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

web/admin-spa/src/views/LoginView.vue

@@ -39,12 +39,17 @@
 
       <form class="space-y-4 sm:space-y-6" @submit.prevent="handleLogin">
         <div>
-          <label class="mb-2 block text-sm font-semibold text-gray-900 dark:text-gray-100 sm:mb-3"
+          <label
+            class="mb-2 block text-sm font-semibold text-gray-900 dark:text-gray-100 sm:mb-3"
+            for="username"
             >用户名</label
           >
           <input
+            id="username"
             v-model="loginForm.username"
+            autocomplete="username"
             class="form-input w-full"
+            name="username"
             placeholder="请输入用户名"
             required
             type="text"
@@ -52,12 +57,17 @@
         </div>
 
         <div>
-          <label class="mb-2 block text-sm font-semibold text-gray-900 dark:text-gray-100 sm:mb-3"
+          <label
+            class="mb-2 block text-sm font-semibold text-gray-900 dark:text-gray-100 sm:mb-3"
+            for="password"
             >密码</label
           >
           <input
+            id="password"
             v-model="loginForm.password"
+            autocomplete="current-password"
             class="form-input w-full"
+            name="password"
             placeholder="请输入密码"
             required
             type="password"

web/admin-spa/src/views/UserLoginView.vue

@@ -46,6 +46,7 @@
               <input
                 id="username"
                 v-model="form.username"
+                autocomplete="username"
                 class="relative block w-full appearance-none rounded-md border border-gray-300 px-3 py-2 text-gray-900 placeholder-gray-500 focus:z-10 focus:border-blue-500 focus:outline-none focus:ring-blue-500 dark:border-gray-600 dark:bg-gray-700 dark:text-white dark:placeholder-gray-400 dark:focus:border-blue-400 dark:focus:ring-blue-400 sm:text-sm"
                 :disabled="loading"
                 name="username"
@@ -67,6 +68,7 @@
               <input
                 id="password"
                 v-model="form.password"
+                autocomplete="current-password"
                 class="relative block w-full appearance-none rounded-md border border-gray-300 px-3 py-2 text-gray-900 placeholder-gray-500 focus:z-10 focus:border-blue-500 focus:outline-none focus:ring-blue-500 dark:border-gray-600 dark:bg-gray-700 dark:text-white dark:placeholder-gray-400 dark:focus:border-blue-400 dark:focus:ring-blue-400 sm:text-sm"
                 :disabled="loading"
                 name="password"