feat(admin): 实现管理员登录和删除功能

- 新增管理员登录接口和相关逻辑
- 实现帖子和评论的删除功能
- 更新用户权限检查逻辑
- 优化登录页面,增加管理员登录入口
- 调整论坛页面布局,增加删除按钮

Change-Id: I6b81fa7296ec9642ca14e249ede517f2fec3d077
diff --git a/src/features/auth/pages/AdminLoginPage.jsx b/src/features/auth/pages/AdminLoginPage.jsx
new file mode 100644
index 0000000..248fcb1
--- /dev/null
+++ b/src/features/auth/pages/AdminLoginPage.jsx
@@ -0,0 +1,157 @@
+import React, { useState } from "react";
+import { useNavigate, Link } from "react-router-dom";
+import {
+  Form,
+  Input,
+  Button,
+  Card,
+  Typography,
+  Space,
+  Divider,
+  message,
+  Alert,
+} from "antd";
+import { UserOutlined, LockOutlined, CrownOutlined } from "@ant-design/icons";
+import { useAuth } from "../contexts/AuthContext";
+
+const { Title, Text } = Typography;
+
+const AdminLoginPage = () => {
+  const [loading, setLoading] = useState(false);
+  const navigate = useNavigate();
+  const { adminLogin, isAuthenticated, user } = useAuth();
+
+  React.useEffect(() => {
+    // 如果已经登录且是管理员,重定向到管理面板
+    if (isAuthenticated && user && user.role === 'admin') {
+      navigate("/admin");
+    }
+  }, [isAuthenticated, user, navigate]);
+
+  const onFinish = async (values) => {
+    setLoading(true);
+    try {
+      const params = {
+        username: values.username,
+        password: values.password,
+      };
+      const userData = await adminLogin(params);
+      
+      console.log("admin login userData:", userData);
+      // 管理员登录成功后直接导航到管理面板
+      if (userData && userData.uid.includes('admin')) {
+        navigate("/admin");
+      } else {
+        message.error("该账号不是管理员账号");
+      }
+    } catch (error) {
+      console.error("Admin login page error:", error);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="flex justify-center items-center min-h-screen bg-gradient-to-br from-orange-100 to-red-100 p-4">
+      <Card className="w-full max-w-md shadow-xl rounded-lg border-t-4 border-t-orange-500">
+        <div className="text-center mb-8">
+          <div className="mb-4">
+            <CrownOutlined className="text-4xl text-orange-500" />
+          </div>
+          <Title level={2} className="!mb-2 text-orange-700">
+            管理员登录
+          </Title>
+          <Text type="secondary">请使用管理员账号登录系统</Text>
+        </div>
+
+        <Alert
+          message="管理员登录"
+          description="此页面仅供系统管理员使用,请确认您拥有管理员权限。"
+          type="warning"
+          showIcon
+          className="mb-6"
+        />
+
+        <Form
+          name="admin_login_form"
+          initialValues={{ remember: true }}
+          onFinish={onFinish}
+          size="large"
+          layout="vertical"
+          className="space-y-6"
+        >
+          <Form.Item
+            name="username"
+            rules={[{ required: true, message: "请输入管理员用户名!" }]}
+          >
+            <Input
+              prefix={<UserOutlined className="site-form-item-icon" />}
+              placeholder="管理员用户名"
+            />
+          </Form.Item>
+          <Form.Item
+            name="password"
+            rules={[{ required: true, message: "请输入管理员密码!" }]}
+          >
+            <Input.Password
+              prefix={<LockOutlined className="site-form-item-icon" />}
+              placeholder="管理员密码"
+            />
+          </Form.Item>
+          <Form.Item>
+            <Button
+              type="primary"
+              htmlType="submit"
+              className="w-full !text-base bg-orange-500 border-orange-500 hover:bg-orange-600 hover:border-orange-600"
+              loading={loading}
+            >
+              管理员登录
+            </Button>
+          </Form.Item>
+        </Form>
+
+        <Divider plain>
+          <span className="text-slate-500">其他选项</span>
+        </Divider>
+
+        <div className="text-center space-y-3">
+          <div>
+            <Link
+              to="/login"
+              className="font-medium text-blue-600 hover:text-blue-700 hover:underline"
+            >
+              普通用户登录
+            </Link>
+          </div>
+          <div>
+            <Text type="secondary" className="mr-1">
+              还没有账号?
+            </Text>
+            <Link
+              to="/register"
+              className="font-medium text-blue-600 hover:text-blue-700 hover:underline"
+            >
+              立即注册
+            </Link>
+          </div>
+        </div>
+
+        {/* 管理员测试账号提示 */}
+        <div className="mt-8 p-4 bg-orange-50 rounded-md border border-orange-200">
+          <Text
+            type="secondary"
+            className="block mb-2 font-semibold text-orange-700"
+          >
+            管理员测试账号
+          </Text>
+          <ul className="space-y-1 text-sm text-orange-600 list-disc list-inside">
+            <li>admin / admin123</li>
+            <li>IcyIron / 111111</li>
+          </ul>
+        </div>
+      </Card>
+    </div>
+  );
+};
+
+export default AdminLoginPage; 
\ No newline at end of file