feat: 完整实现AD域控用户认证系统

主要功能:
- 新增LDAP服务连接AD域控服务器
- 实现多格式AD用户认证(sAMAccountName, UPN, 域\用户名, DN)
- 支持中文显示名和拼音用户名搜索
- 添加用户账户状态检查(禁用账户检测)
- 实现JWT token认证和用户会话管理

新增文件:
- src/services/ldapService.js - LDAP核心服务
- src/routes/ldapRoutes.js - AD认证API路由
- src/services/userMappingService.js - 用户映射服务
- web/admin-spa/src/views/UserDashboardView.vue - 用户控制台
- web/admin-spa/src/components/user/ - 用户组件目录

修改功能:
- ApiStatsView.vue 增加用户登录按钮和模态框
- 路由系统增加用户专用页面
- 安装ldapjs和jsonwebtoken依赖

技术特性:
- 多种认证格式自动尝试
- LDAP referral错误处理
- 详细认证日志和错误码记录
- 前后端完整用户认证流程

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

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

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

@@ -20,6 +20,15 @@
             class="h-8 w-px bg-gradient-to-b from-transparent via-gray-300 to-transparent opacity-50 dark:via-gray-600"
           />
 
+          <!-- 用户登录按钮 -->
+          <button
+            class="user-login-button flex items-center gap-2 rounded-2xl px-4 py-2 transition-all duration-300 md:px-5 md:py-2.5"
+            @click="showUserLogin"
+          >
+            <i class="fas fa-user-circle text-sm md:text-base" />
+            <span class="text-xs font-semibold tracking-wide md:text-sm">用户登录</span>
+          </button>
+
           <!-- 管理后台按钮 -->
           <router-link
             class="admin-button-refined flex items-center gap-2 rounded-2xl px-4 py-2 transition-all duration-300 md:px-5 md:py-2.5"
@@ -129,6 +138,74 @@
         <TutorialView />
       </div>
     </div>
+
+    <!-- 用户登录模态框 -->
+    <div v-if="showLoginModal" class="fixed inset-0 z-50 flex items-center justify-center p-4">
+      <div class="fixed inset-0 bg-black/50 backdrop-blur-sm" @click="hideUserLogin"></div>
+      <div class="glass-strong relative w-full max-w-md rounded-2xl p-6 shadow-2xl">
+        <div class="mb-6 text-center">
+          <h2 class="mb-2 text-2xl font-bold text-gray-800 dark:text-gray-100">AD域控登录</h2>
+          <p class="text-sm text-gray-600 dark:text-gray-400">使用您的域账号登录</p>
+        </div>
+
+        <form class="space-y-4" @submit.prevent="handleUserLogin">
+          <div>
+            <label class="mb-2 block text-sm font-semibold text-gray-900 dark:text-gray-100">
+              用户名
+            </label>
+            <input
+              v-model="userLoginForm.username"
+              class="w-full rounded-xl border border-gray-300 bg-white/70 px-4 py-3 text-gray-800 placeholder-gray-500 backdrop-blur-sm focus:border-blue-500 focus:outline-none focus:ring-2 focus:ring-blue-500/20 dark:border-gray-600 dark:bg-gray-800/70 dark:text-gray-200 dark:placeholder-gray-400"
+              placeholder="请输入域用户名"
+              required
+              type="text"
+            />
+          </div>
+
+          <div>
+            <label class="mb-2 block text-sm font-semibold text-gray-900 dark:text-gray-100">
+              密码
+            </label>
+            <input
+              v-model="userLoginForm.password"
+              class="w-full rounded-xl border border-gray-300 bg-white/70 px-4 py-3 text-gray-800 placeholder-gray-500 backdrop-blur-sm focus:border-blue-500 focus:outline-none focus:ring-2 focus:ring-blue-500/20 dark:border-gray-600 dark:bg-gray-800/70 dark:text-gray-200 dark:placeholder-gray-400"
+              placeholder="请输入域密码"
+              required
+              type="password"
+            />
+          </div>
+
+          <div class="flex gap-3 pt-4">
+            <button
+              class="flex-1 rounded-xl border border-gray-300 bg-white/70 px-4 py-3 text-sm font-medium text-gray-700 backdrop-blur-sm transition-colors hover:bg-gray-50 dark:border-gray-600 dark:bg-gray-800/70 dark:text-gray-300 dark:hover:bg-gray-700"
+              type="button"
+              @click="hideUserLogin"
+            >
+              取消
+            </button>
+            <button
+              class="flex flex-1 items-center justify-center gap-2 rounded-xl bg-gradient-to-r from-blue-500 to-purple-600 px-4 py-3 text-sm font-medium text-white backdrop-blur-sm transition-all hover:from-blue-600 hover:to-purple-700 disabled:opacity-50"
+              :disabled="userLoginLoading"
+              type="submit"
+            >
+              <div
+                v-if="userLoginLoading"
+                class="h-4 w-4 animate-spin rounded-full border-2 border-white border-t-transparent"
+              ></div>
+              <i v-else class="fas fa-sign-in-alt"></i>
+              {{ userLoginLoading ? '登录中...' : '登录' }}
+            </button>
+          </div>
+        </form>
+
+        <div
+          v-if="userLoginError"
+          class="mt-4 rounded-xl border border-red-500/30 bg-red-500/20 p-3 text-center text-sm text-red-800 dark:text-red-400"
+        >
+          <i class="fas fa-exclamation-triangle mr-2"></i>{{ userLoginError }}
+        </div>
+      </div>
+    </div>
   </div>
 </template>
 
@@ -157,6 +234,15 @@ const currentTab = ref('stats')
 // 主题相关
 const isDarkMode = computed(() => themeStore.isDarkMode)
 
+// 用户登录相关
+const showLoginModal = ref(false)
+const userLoginLoading = ref(false)
+const userLoginError = ref('')
+const userLoginForm = ref({
+  username: '',
+  password: ''
+})
+
 const {
   apiKey,
   apiId,
@@ -171,6 +257,63 @@ const {
 
 const { queryStats, switchPeriod, loadStatsWithApiId, loadOemSettings, reset } = apiStatsStore
 
+// 用户登录相关方法
+const showUserLogin = () => {
+  showLoginModal.value = true
+  userLoginError.value = ''
+  userLoginForm.value = {
+    username: '',
+    password: ''
+  }
+}
+
+const hideUserLogin = () => {
+  showLoginModal.value = false
+  userLoginError.value = ''
+  userLoginForm.value = {
+    username: '',
+    password: ''
+  }
+}
+
+const handleUserLogin = async () => {
+  if (!userLoginForm.value.username || !userLoginForm.value.password) {
+    userLoginError.value = '请输入用户名和密码'
+    return
+  }
+
+  userLoginLoading.value = true
+  userLoginError.value = ''
+
+  try {
+    const response = await fetch('/admin/ldap/login', {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json'
+      },
+      body: JSON.stringify(userLoginForm.value)
+    })
+
+    const result = await response.json()
+
+    if (result.success) {
+      // 保存token到localStorage
+      localStorage.setItem('user_token', result.token)
+      localStorage.setItem('user_info', JSON.stringify(result.user))
+
+      // 跳转到用户专用页面
+      window.location.href = '/admin-next/user-dashboard'
+    } else {
+      userLoginError.value = result.message || '登录失败'
+    }
+  } catch (error) {
+    console.error('用户登录错误:', error)
+    userLoginError.value = '网络错误，请重试'
+  } finally {
+    userLoginLoading.value = false
+  }
+}
+
 // 处理键盘快捷键
 const handleKeyDown = (event) => {
   // Ctrl/Cmd + Enter 查询
@@ -309,6 +452,55 @@ watch(apiKey, (newValue) => {
   letter-spacing: -0.025em;
 }
 
+/* 用户登录按钮 */
+.user-login-button {
+  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
+  backdrop-filter: blur(20px);
+  border: 1px solid rgba(255, 255, 255, 0.3);
+  color: white;
+  text-decoration: none;
+  box-shadow:
+    0 4px 12px rgba(16, 185, 129, 0.25),
+    inset 0 1px 1px rgba(255, 255, 255, 0.2);
+  position: relative;
+  overflow: hidden;
+  font-weight: 600;
+  cursor: pointer;
+}
+
+/* 暗色模式下的用户登录按钮 */
+:global(.dark) .user-login-button {
+  background: rgba(34, 197, 94, 0.8);
+  border: 1px solid rgba(107, 114, 128, 0.4);
+  color: #f3f4f6;
+  box-shadow:
+    0 4px 12px rgba(0, 0, 0, 0.3),
+    inset 0 1px 1px rgba(255, 255, 255, 0.05);
+}
+
+.user-login-button:hover {
+  transform: translateY(-2px) scale(1.02);
+  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
+  box-shadow:
+    0 8px 20px rgba(5, 150, 105, 0.35),
+    inset 0 1px 1px rgba(255, 255, 255, 0.3);
+  border-color: rgba(255, 255, 255, 0.4);
+  color: white;
+}
+
+:global(.dark) .user-login-button:hover {
+  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
+  border-color: rgba(34, 197, 94, 0.4);
+  box-shadow:
+    0 8px 20px rgba(16, 185, 129, 0.3),
+    inset 0 1px 1px rgba(255, 255, 255, 0.1);
+  color: white;
+}
+
+.user-login-button:active {
+  transform: translateY(-1px) scale(1);
+}
+
 /* 管理后台按钮 - 精致版本 */
 .admin-button-refined {
   background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);