feat: 新增管理台模型配置管理功能

- 支持配置类型注册表机制（basic、zhisuan）
- 配置列表展示（生效中/未生效状态区分）
- 新增/编辑配置表单，支持动态字段渲染
- 生效中配置不可编辑/删除限制
- 配置类型创建后不可修改
- 密钥掩码显示与显示/隐藏切换
- 操作二次确认弹窗（设为默认、删除）

src/pages/AdminPage.jsx

@@ -1,6 +1,6 @@
 import { useState, useEffect } from 'react';
 import { useLocation, useNavigate } from 'react-router-dom';
-import { FiHome, FiBarChart2, FiUsers, FiList, FiCheckCircle, FiActivity } from 'react-icons/fi';
+import { FiHome, FiBarChart2, FiUsers, FiList, FiCheckCircle, FiActivity, FiSettings } from 'react-icons/fi';
 import Layout from '../components/Layout.jsx';
 import SidebarBrand from '../components/layout/SidebarBrand.jsx';
 import SidebarUser from '../components/layout/SidebarUser.jsx';
@@ -18,6 +18,8 @@ import AddProjectPage from './admin/AddProjectPage.jsx';
 import AdminLogsPage from './admin/AdminLogsPage.jsx';
 import ConsoleReviewListPage from './console/ConsoleReviewListPage.jsx';
 import ConsoleReviewDetailPage from './console/ConsoleReviewDetailPage.jsx';
+import ModelConfigsPage from './admin/ModelConfigsPage.jsx';
+import AddModelConfigPage from './admin/AddModelConfigPage.jsx';
 
 function AdminPage() {
     const location = useLocation();
@@ -94,15 +96,25 @@ function AdminPage() {
                     onBack={() => navigateTo('projects')}
                     editData={editData}
                 />;
+            case 'modelConfigs':
+                return <ModelConfigsPage
+                    onAdd={() => navigateTo('addModelConfig')}
+                    onEdit={(config) => navigateTo('addModelConfig', config)}
+                />;
+            case 'addModelConfig':
+                return <AddModelConfigPage
+                    onBack={() => navigateTo('modelConfigs')}
+                    editData={editData}
+                />;
             default:
                 return <div>Page not found</div>;
         }
     };
 
     const getPageTitle = () => {
-        if (editData && (currentPage === 'addDepartment' || currentPage === 'addUser' || currentPage === 'addProject')) {
+        if (editData && (currentPage === 'addDepartment' || currentPage === 'addUser' || currentPage === 'addProject' || currentPage === 'addModelConfig')) {
             const prefix = '编辑';
-            const nameMap = { addDepartment: '部门', addUser: '用户', addProject: '项目' };
+            const nameMap = { addDepartment: '部门', addUser: '用户', addProject: '项目', addModelConfig: '配置' };
             return prefix + nameMap[currentPage];
         }
         if (currentPage === 'reviewDetail') {
@@ -171,6 +183,15 @@ function AdminPage() {
                     iconClassName="admin-nav-icon"
                     textClassName="admin-nav-text"
                 />
+                <SidebarNavItem
+                    icon={<FiSettings />}
+                    label="模型配置"
+                    active={currentPage === 'modelConfigs' || currentPage === 'addModelConfig'}
+                    onClick={() => navigateTo('modelConfigs')}
+                    itemClassName="admin-nav-item"
+                    iconClassName="admin-nav-icon"
+                    textClassName="admin-nav-text"
+                />
             </nav>
             <SidebarUser
                 onClick={() => {}}