新增知识库管理页面，包含知识库文章的增删改查功能，优化API接口定义，提升用户体验和代码可维护性。同时，更新主题设置页面，整合配色方案逻辑，增强用户交互体验。

client/admin/test/pages_theme_setting.test.tsx

@@ -1,7 +1,7 @@
 import { JSDOM } from 'jsdom'
 import React from 'react'
 import {render, fireEvent, within, screen} from '@testing-library/react'
-import { ThemeSettingsPage } from "../pages_settings.tsx"
+import { ThemeSettingsPage } from "../pages_theme_settings.tsx"
 import { ThemeProvider } from "../hooks_sys.tsx"
 import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
 import {